Book flights from Seattle/Tacoma Intl (SEA) to Washington, D.C. (WAS) starting at C$ 117. Search real-time flight deals from Seattle to Washington, D.C. on Cheapflights.ca.All dates and times are local for the airport listed. Gates and times are subject to change. For the most current information, check the airport monitors. Search for a topic... Find the flight status for a specific Delta Air Lines flight and receive real-time notifications via …Cheap Flights from New York to Seattle (JFK-SEA) Prices were available within the past 7 days and start at $118 for one-way flights and $231 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from New York to Seattle with no change fee on selected flights. Alaska Airlines, Inc., Delta and two other airlines fly from Seattle to Washington, DC hourly. Alternatively, you can take a train from Seattle to Washington, DC via Chicago Union Station, Rockville Amtrak, and Rockville, Red Line Center Platform in around 2 days 16h. Airlines. This month, there are 26,970 flights arriving at Seattle / Tacoma Airport, which are 899 flights per day or 37 flights per hour. On an average day, there is at least 1 flight arriving every 2 minutes. The most frequently departed flights to Seattle / Tacoma are routes from Portland (PDX) in United States and Phoenix (PHX), also in United States.Jan 5, 2024 · 1 stop. from $228. Washington, D.C..$243 per passenger.Departing Tue, Jun 4, returning Tue, Jun 11.Round-trip flight with Alaska Airlines and Frontier Airlines.Outbound indirect flight with Alaska Airlines, departing from Seattle / Tacoma International on Tue, Jun 4, arriving in Washington Dulles.Inbound indirect flight with Frontier Airlines ... Roundtrip. found 2 hours ago. Sun, Apr 21 - Wed, Apr 24. SEA. Seattle - Tacoma Intl. $139 Cheap Delta flights Seattle (SEA) to Washington (IAD) Prices were available within the past 7 days and start at $139 for one-way flights and $251 for round trip, for the period specified. Roundtrip. Wed, May 8 - Sat, May 11.FILE - Passenger drop off their baggage at United Airlines in C Terminal at George Bush Intercontinental Airport, Thursday, Dec. 21, 2023, in Houston. The Biden …The two airlines most popular with KAYAK users for flights from Seattle to Baltimore are Alaska Airlines and Delta. With an average price for the route of $462 and an overall rating of 8.1, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $376 and an overall rating of 8.0.Use Google Flights to plan your next trip and find cheap one way or round trip flights from Seattle to anywhere in the world.1 stop. from $209. Washington, D.C..$227 per passenger.Departing Wed, Aug 21, returning Wed, Sep 4.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Seattle / Tacoma International on Wed, Aug 21, arriving in Washington Ronald Reagan.Inbound indirect flight with Frontier Airlines, departing ... $86 Search for cheap flights deals from SEA to DCA (Seattle - Tacoma Intl. to Ronald Reagan Washington National). We offer cheap direct, non-stop flights including one way and roundtrip tickets. Direct. from $84. San Jose Cabo.$97 per passenger.Departing Wed, May 22.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Seattle / Tacoma International on Wed, May 22, arriving in San Jose Cabo.Price includes taxes and charges.From $97, select. San Jose Cabo Mexico.One of the most popular airlines traveling from Washington, D.C. to Seattle is Frontier. Flights from Frontier traveling this route typically cost $443.80 RT. This price is typically 32% cheaper than other airlines that offer Washington, D.C. to Seattle flights. When booking this route, the cheapest RT price found was $139. There are 3 airlines that fly nonstop from Washington, D.C. to Seattle. They are: Alaska Airlines, Delta and United Airlines. The cheapest price of all airlines flying this route was found with Delta at $139 for a one-way flight. On average, the best prices for this route can be found at Delta. Find the lowest prices on one-way and round-trip tickets right here. Seattle.$176 per passenger.Departing Wed, May 1, returning Fri, May 10.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Washington Ronald Reagan on Wed, May 1, arriving in Seattle / Tacoma International.Inbound indirect ...The flight to Washington DC from Seattle takes around six hours forty five minutes excluding the layover time, it covers the total distance of 2328 miles. Watch in-flight movies or listen to music to pass the time. Comprehensive Insights About the Seattle to Washington Dc Flight Route.Find cheap flights to Washington with Google Flights. Explore popular destinations in Washington and book your flight.The two airlines most popular with KAYAK users for flights from New York to Washington, D.C. are Delta and JetBlue. With an average price for the route of $248 and an overall rating of 8.0, Delta is the most popular choice. JetBlue is also a great choice for the route, with an average price of $213 and an overall rating of 7.6. Use Google Flights to plan your next trip and find cheap one way or round trip flights from Seattle to anywhere in the world. Find the best flights fast, track prices, and book with confidence. International Routes to and from Seattle For assistance with booking and flight arrangements please contact the domestic and international airlines you are flying with ... Welcome Home. Meet our International Arrivals Facility The Port of Seattle built a new, expanded International Arrivals Facility (IAF) at SEA Airport to meet growing … JetBlue offers flights to 90+ destinations with free inflight entertainment, free brand-name snacks and drinks, lots of legroom and award-winning service. D.C. United vs. Seattle Sounders FC. Sat • Apr 27 • 7:30 PM Audi Field, Washington, DC. Important Event Info: Audi Field is a mobile-only venue. Children 2 and under do not …Book cheap flights to Washington, D.C. (IAD) with United Airlines. Enjoy all the in-flight perks on your Washington, D.C. flight, including speed Wi-Fi. ... From Seattle (SEA) To Washington, D.C. (IAD) Roundtrip | Economy: 06/04/24 - 06/11/24: from. $ 277* Viewed: 1 day ago. From New York/Newark (EWR) To Washington, D.C. (IAD) Roundtrip ...D.C. United vs. Seattle Sounders FC. Sat • Apr 27 • 7:30 PM Audi Field, Washington, DC. Important Event Info: Audi Field is a mobile-only venue. Children 2 and under do not …Washington D.C.. $387 per passenger. Departing Thu, 25 Apr, returning Wed, 1 May. Return flight with Delta. Outbound direct flight with Delta departs from Seattle / Tacoma International on Thu, 25 Apr, arriving in Washington Dulles.Find Your Flight. Looking for international flight deals? Call us at 1 (833) 203-5879.Media Contact. Press Office. US Department of Transportation 1200 New Jersey Ave, SE Washington, DC 20590 United States. Email: [email protected] …Use Google Flights to plan your next trip and find cheap one way or round trip flights from Miami to Seattle. Find the best flights fast, track prices, and book with confidence.Pasco/Kennewick to Washington Flights. Departing Jun 04 - Jun 10, 2024. Main Cabin $538. Book. It's the proud capital of the United States of America, a fact that’s abundantly clear every time you visit its glorious monuments. Drive along the Potomac River, take in the majestic Lincoln Memorial, marvel at the stunning simplicity of the ...Use Google Flights to plan your next trip and find cheap one way or round trip flights from Seattle to anywhere in the world.The JetBlue flight departed from DC at 1:29 p.m. Thursday and landed at Logan International Airport at 2:47 p.m., almost six hours later than it was originally … Use Google Flights to find cheap departing flights to Washington, D.C. and to track prices for specific travel dates for your next getaway. Apr 15, 2019 · Save 100% on your flight. $2,246. $1,481. per person. Mar 20 - Mar 27. Roundtrip non-stop flight included. Seattle (SEA) to Washington (DCA) The cheapest way to get from Washington, DC to Seattle costs only $293, and the quickest way takes just 7¾ hours. Find the travel option that best suits you. ... DC to Seattle is to fly which takes 7h 59m and costs $120 - $490. Alternatively, you can train, which costs $120 - $850 and takes 2 days 17h. Mode detailsThe distance between Seattle (Seattle–Tacoma International Airport) and Washington D.C. (Washington Dulles International Airport) is 2306 miles / 3711 kilometers / 2004 nautical miles. The driving distance from Seattle (SEA) to Washington D.C. (IAD) is 2740 miles / 4409 kilometers, and travel time by car is about 49 hours 14 minutes. There are 4 airlines that fly nonstop from Seattle to New York. They are: Alaska Airlines, Delta, JetBlue and United Airlines. The cheapest price of all airlines flying this route was found with Alaska Airlines at $103 for a one-way flight. On average, the best prices for this route can be found at JetBlue. My dates are flexible. SHOW FARES. Include Nearby Airports. Search for a Delta flight round-trip, multi-city or more. You choose from over 300 destinations worldwide to find a flight that fits your schedule. Carriers which have flown such direct red eye flights from Seattle may include: Alaska Airlines departing SEA around 9:25pm and arriving IAD around 5:30am. United Airlines departing SEA around 11:30pm and arriving IAD around 7:17am. Example departure times listed are local to origin airport time zone, and arrival times are local to destination.Book cheap flights to Bishop/Mammoth (BIH) with United Airlines. Enjoy all the in-flight perks on your Bishop/Mammoth flight, including speed Wi-Fi. ... From Seattle (SEA) To Bishop/Mammoth (BIH) Roundtrip | Economy: 07/09/24 - 07/12/24: from. $ …1 stop. from $209. Washington, D.C..$227 per passenger.Departing Wed, Aug 21, returning Wed, Sep 4.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Seattle / Tacoma International on Wed, Aug 21, arriving in Washington Ronald Reagan.Inbound indirect flight with Frontier Airlines, departing ...April 23, 2024 at 11:05 a.m. EDT. A couple watch an April moon rise in 2021 in New Albany, Ind. (Charlie Riedel/AP) April’s full moon, commonly known as the “pink” …Earn free travel rewards with Orbitz. Fast booking & free cancellations. Reserve now, pay later!fly for about 4.5 hours in the air. 9:48 pm (local time): Ronald Reagan Washington National (DCA) Washington, DC is 3 hours ahead of Seattle. so the time in Seattle is actually 6:48 pm. taxi on the runway for an average of 5 minutes to the gate. 9:53 pm (local time): arrive at the gate at DCA. deboard the plane, and claim any baggage.Lowest fares from Washington, D.C. to Seattle. Searching for cheap flights from Washington, D.C. to Seattle? Enjoy comfort, premium cabin legroom and free movies with Alaska Airlines. Find the lowest fares today.Airport information for your flight from Seattle (SEA) Seattle–Tacoma InternationalAirport (SEA), often referred to as Sea-Tac, is located 12 miles (19 km) south of the city center. Access free airport Wi-Fi while waiting to board your flight from Seattle. The Seattle Airport has a United Club℠ location.Flights from Seattle to Washington, D.C.. Use Google Flights to plan your next trip and find cheap one way or round trip flights from Seattle to Washington, D.C.. Find the...Airport information for your flight from Seattle (SEA) Seattle–Tacoma InternationalAirport (SEA), often referred to as Sea-Tac, is located 12 miles (19 km) south of the city center. Access free airport Wi-Fi while waiting to board your flight from Seattle. The Seattle Airport has a United Club℠ location.Roundtrip. Flights from Seattle (SEA) to Washington (IAD) with United. How much is a flight ticket from Seattle (SEA) - Chantilly (IAD) with United? ️ Prices were available …Miami (MIA) to. Seattle (SEA) 05/11/24 - 05/18/24. from. $294*. Updated: 5 hours ago. Round trip. I. Economy.Cheap Flights from Seattle to New York (SEA-JFK) Prices were available within the past 7 days and start at $118 for one-way flights and $225 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Seattle to New York with no change fee on selected flights. There are 5 airlines that fly nonstop from Seattle to Chicago. They are: Alaska Airlines, American Airlines, Delta, Southwest and United Airlines. The cheapest price of all airlines flying this route was found with Delta at $98 for a one-way flight. On average, the best prices for this route can be found at Alaska Airlines. Book flights from Seattle/Tacoma to Washington, D.C. (Reagan National) with Southwest Airlines ®. It’s easy to find the Seattle-Tacoma International Airport to Ronald Reagan …Singapore Airlines destinations. Flights United States of America. to Washington, D.C. Singapore - Washington, D.C. Travel to Washington, D.C. with Singapore Airlines. Book your flight tickets today, and get ready to enjoy world-class hospitality on your safe and comfortable journey to Washington, D.C.. 1 stop. from $247. Seattle.$265 per passenger.Departing Tue, Oct 1, returning Tue, Oct 8.Round-trip flight with Delta.Outbound indirect flight with Delta, departing from Washington Dulles on Tue, Oct 1, arriving in Seattle / Tacoma International.Inbound indirect flight with Delta, departing from Seattle / Tacoma International on Tue, Oct 8 ... Based on KAYAK searches from the last 72 hours, if you fly from Ontario, you should have a good chance of getting the best deal to Seattle as it was the cheapest place to fly from.Prices were found for as low as $34 one-way and $43 for a round-trip flight. Also in the last 72 hours, the most popular connection to Seattle was from Chicago and the …The cheapest way to get from Washington, DC to Seattle costs only $293, and the quickest way takes just 7¾ hours. Find the travel option that best suits you. ... DC to Seattle is to fly which takes 7h 59m and costs $120 - $490. Alternatively, you can train, which costs $120 - $850 and takes 2 days 17h. Mode details There are 4 airlines that fly nonstop from Seattle to New York. They are: Alaska Airlines, Delta, JetBlue and United Airlines. The cheapest price of all airlines flying this route was found with Alaska Airlines at $103 for a one-way flight. On average, the best prices for this route can be found at JetBlue. 1 stop. from $247. Seattle.$265 per passenger.Departing Tue, Oct 1, returning Tue, Oct 8.Round-trip flight with Delta.Outbound indirect flight with Delta, departing from Washington Dulles on Tue, Oct 1, arriving in Seattle / Tacoma International.Inbound indirect flight with Delta, departing from Seattle / Tacoma International on Tue, Oct 8 ... Book a Spirit Flight from Seattle (SEA) and Enjoy Our New Fleet! Save Huge with Ultra Low Cost Flights and Start Packing! ... Baltimore, MD / Washington DC AREA (BWI) Depart 06/24/2024. One Way / Economy. Fares From. $167* Viewed 4 hours ago. Book now. Seattle (SEA) to. Dallas (DFW) Depart 05/28/2024. One Way / Economy. Fares … Use Google Flights to find cheap departing flights to Washington, D.C. and to track prices for specific travel dates for your next getaway. Use Google Flights to plan your next trip and find cheap one way or round trip flights from Seattle to anywhere in the world. Find the best flights fast, track prices, and book with confidence. Roundtrip. Wed, May 8 - Sat, May 11. JetBlue offers flights to 90+ destinations with free inflight entertainment, free brand-name snacks and drinks, lots of legroom and award-winning service. Wed 5/8 8:35 am SEA - IAD. Nonstop 5h 09m Delta. Deal found 4/17 $379. Pick Dates. One of the most popular airlines traveling from Washington, D.C. Dulles Intl Airport to Seattle is Delta. Flights from Delta traveling this route typically cost $377.81 RT.This month, there are 26,970 flights arriving at Seattle / Tacoma Airport, which are 899 flights per day or 37 flights per hour. On an average day, there is at least 1 flight arriving every 2 minutes. The most frequently departed flights to Seattle / Tacoma are routes from Portland (PDX) in United States and Phoenix (PHX), also in United States.International Routes to and from Seattle For assistance with booking and flight arrangements please contact the domestic and international airlines you are flying with ... Welcome Home. Meet our International Arrivals Facility The Port of Seattle built a new, expanded International Arrivals Facility (IAF) at SEA Airport to meet growing …Flight Status & Notifications. All fields required. Search by. From City or Airport. To City or Airport. Departure Date Selected Departure date 2024AprilWednesday24. Open calender and then use pageup and pagedown to navigate between months and alt + pageup and alt + pagedown for years.Cheap Seattle to Delaware flights in April & May 2024. Check out some of the best flight deals from Seattle to Delaware in 2024. Check back regularly for other flight deals. vie. 5/17 10:24 pm SEA - PHL. 1 stop 28h 10m Frontier.Apr 26, 2024 · Lowest fares from Washington, D.C. to Seattle. Searching for cheap flights from Washington, D.C. to Seattle? Enjoy comfort, premium cabin legroom and free movies with Alaska Airlines. Find the lowest fares today. Apr 15, 2019 · Save 100% on your flight. $2,246. $1,481. per person. Mar 20 - Mar 27. Roundtrip non-stop flight included. Seattle (SEA) to Washington (DCA) Airport information for your flight from Seattle (SEA) Seattle–Tacoma InternationalAirport (SEA), often referred to as Sea-Tac, is located 12 miles (19 km) south of the city center. Access free airport Wi-Fi while waiting to board your flight from Seattle. The Seattle Airport has a United Club℠ location.Tips to get cheap flights from Washington Dc to Seattle. Try to book your flight at least 21 days in advance in order to some flight deals which suit your budget. It is recommended to travel on weekdays to avoid weekend surcharges. Avoid flying in heavy traffic by booking your flight before or after major holidays.Wed 5/8 8:35 am SEA - IAD. Nonstop 5h 09m Delta. Deal found 4/17 $379. Pick Dates. One of the most popular airlines traveling from Washington, D.C. Dulles Intl Airport to Seattle is Delta. Flights from Delta traveling this route typically cost $377.81 RT.60,000 Bonus Miles. Online-only offer. Offers vary elsewhere. Search Alaska Airlines flight schedules & timetables. Find flight departure & arrival times for all Alaska Airlines flights. View airline flight schedules now. Airfares from $80 One Way, $130 Round Trip from Seattle to Washington. Prices starting at $130 for return flights and $80 for one-way flights to Washington were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply. Mon, May 6 - Tue, May 14. SEA. Seattle. Use Google Flights to explore cheap flights to anywhere. Search destinations and track prices to find and book your next flight. On average, a flight to Washington, D.C. costs $357. The cheapest price found on KAYAK in the last 2 weeks cost $19 and departed from Detroit Metropolitan Wayne County Airport. The most popular routes on KAYAK are Los Angeles to Washington, D.C. which costs $394 on average, and Raleigh to Washington, D.C., which costs $629 on average. Find and book cheap flights from Seattle (SEA) to Washington (DCA) with Expedia. Compare prices, dates, airlines and deals for roundtrip or one-way flights from Seattle … Connect with us. Find low fares to top destinations on the official Southwest Airlines website. Book flight reservations, rental cars, and hotels on southwest.com. The two airlines most popular with KAYAK users for flights from Atlanta to Washington, D.C. are Delta and United Airlines. With an average price for the route of $212 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $208 and an overall rating of 7.4. Cheap Flights from Seattle to Manila (SEA-MNL) Prices were available within the past 7 days and start at $487 for one-way flights and $799 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Seattle to Manila with no change fee on selected flights.$129 Search for cheap flights deals from IAD to SEA (Washington Dulles Intl. to Seattle - Tacoma Intl.). We offer cheap direct, non-stop flights including one way and roundtrip tickets. ... Amazing IAD to SEA Flight Deals. The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $239 round trip and $129 one way. Prices ...Be it a business or a leisure trip, Book discount flights from Seattle to Washington DC on MyFlightSearch and jet set for a vacation without exceeding your budget. Take advantage of our low cost flight deals from Seattle to Washington DC and jet set for a budget friendly Washington DC getaway. Book online or call our 24*7 customer care to get ...Roundtrip. Flights from Seattle (SEA) to Washington (IAD) with United. How much is a flight ticket from Seattle (SEA) - Chantilly (IAD) with United? ️ Prices were available …April 23, 2024 at 11:05 a.m. EDT. A couple watch an April moon rise in 2021 in New Albany, Ind. (Charlie Riedel/AP) April’s full moon, commonly known as the “pink” …For a brand new experience: Purchase an Istanbul flight ticket now. You can travel to Istanbul, the central city of Turkish Airlines, with direct flights from many parts in Türkiye and the world. You can find out about Istanbul flight ticket prices and all the details you need for Istanbul flights on this page or the “ Flight ticket booking ... Flights from Seattle to Washington, D.C.. Use Google Flights to plan your next trip and find cheap one way or round trip flights from Seattle to Washington, D.C..
Flight to Butte, MT; Flying time from Seattle, WA to Washington, DC. The total flight duration from Seattle, WA to Washington, DC is 4 hours, 29 minutes. This is the average in-air flight time (wheels up to wheels down on the runway) based on actual flights taken over the past year, including routes like SEA to DCA. It covers the entire time on ... . Dior gown
Flights from Seattle (SEA) to Washington (IAD) Origin airport. Seattle - Tacoma Intl. Destination airport. Washington Dulles Intl. Airlines serving. Alaska Airlines, American Airlines, Delta, Sun Country Airlines, United. Popular airline. 1 stop. Sat, 7 Sep SEA - SYD with Alaska Airlines. 1 stop. from $1,286. Seattle.$1,449 per passenger.Departing Tue, 3 Dec, returning Sun, 8 Dec.Return flight with Air New Zealand.Outbound indirect flight with Air New Zealand, departs from Sydney on Tue, 3 Dec, arriving in Seattle / Tacoma International.Inbound indirect flight with Air New ... The average flying time for a direct flight from Seattle, WA to Washington DC is 5 hours 0 minutes. Most direct flights leave around 7:55 PDT. Alaska Airlines flight #922 is today's earliest flight from Seattle, WA to Washington DC (7:55 PDT, Boeing 737-800 (winglets) pax) Korean Air flight #2 is today's latest flight from Seattle, WA to ... Use Google Flights to find cheap departing flights to Cancún and to track prices for specific travel dates for your next getaway.Find flights to Washington, D.C. from $65. Fly from Seattle on Frontier, Spirit Airlines, Sun Country Air and more. Search for Washington, D.C. flights on KAYAK now to find the …from £197. Washington D.C.. £197 per passenger.Departing Tue, 22 Oct, returning Mon, 28 Oct.Return flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Tue, 22 Oct, arriving in Baltimore Washington International.Inbound indirect flight with United, departs from Baltimore Washington ... Airfares from $85 One Way, $150 Round Trip from Washington to Seattle. Prices starting at $150 for return flights and $85 for one-way flights to Seattle were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply. Sun, May 5 - Fri, May 17. DCA. Washington. Find flights to Washington, D.C. from £111. Fly from Seattle on Delta, Alaska Airlines, Sun Country Air and more. Search for Washington, D.C. flights on KAYAK now to find the best deal. Book flights from Seattle/Tacoma Intl (SEA) to Washington, D.C. (WAS) starting at C$ 117. Search real-time flight deals from Seattle to Washington, D.C. on Cheapflights.ca.Pick Dates. Spirit Airlines is one of the most popular airlines used for those traveling from Washington, D.C. to Seattle. Flights on this route from Spirit Airlines typically cost $436.80 RT, a price that is 53% more expensive than the average Washington, D.C. to Seattle flight. The cheapest flight found was $139 RT.The two airlines most popular with KAYAK users for flights from Albany to Seattle are Alaska Airlines and Delta. With an average price for the route of $871 and an overall rating of 8.1, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $588 and an overall rating of 8.0. Prices starting at $130 for return flights and $56 for one-way flights to Ronald Reagan Washington National were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply. Tue, Apr 30 - Mon, May 6. SEA. Watch this route. $118RT. Nonstop | Midweek Fare. Seattle, WA (SEA)to Dallas/Fort Worth, TX (DFW) Best Times to Go. Frontier. Find This Deal. $168RT. Nonstop | Midweek Fare.Flights from Washington, DC to Seattle, WA cover the 2316 miles (3736 km) long route taking on average 5 h 58 min with our travel partners like Alaska Airlines, American Airlines or United. You can get the cheapest plane tickets for this route for as low as $97 (€85), but the average price of plane tickets is $242 (€213). ... Flights from Seattle (SEA) to Washington (IAD) Origin airport. Seattle - Tacoma Intl. Destination airport. Washington Dulles Intl. Airlines serving. Alaska Airlines, American Airlines, Delta, Sun Country Airlines, United. Popular airline. Cheap Flights from Seattle (SEA) to Washington (DCA) Prices were available within the past 7 days and start at AU$146 for one-way flights and AU$423 for round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply..