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Flights Seattle — Washington, D.C.

Seattle
SEA
Washington
WAS

Cheap flights Seattle — Washington, D.C.

Below you can see the best deals on flights Seattle — Washington, D.C. for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 26 August, from AED 376.

Top 10 cheap flights Seattle — Washington, D.C.

Direct flights Seattle — Washington, D.C.

Direct flight options for Seattle — Washington, D.C. with no stopovers on upcoming dates. A direct flight is faster and more convenient — especially when travelling with luggage or children.

The fastest direct flight is operated by Qatar Airways — travel time is 5 h 1 min.

Top 10 direct flights Seattle — Washington, D.C.

About the Seattle — Washington, D.C. flight

On this page, you can find and book flights from Seattle to Washington, D.C.. The distance between the cities is 3,745 km, and flight frequency reaches approximately 75 flights per week.

Flights on this route are operated by United Airlines, Delta Air Lines, and American Airlines. Ticket prices are dynamic, so use the low price calendar to find the best option. Information is also available on how to get to the airport in Seattle and from the airport to downtown Washington, D.C.

Flight schedule Seattle — Washington, D.C.

The table shows direct flights Seattle → Washington, D.C. on the selected date. The flight takes approximately 4 h 56 min. Regular flights are operated by Alaska Airlines, Hawaiian Airlines, American Airlines and United Airlines. Departures from Seattle-Tacoma International Airport and Paine Field airports, arrivals at Washington Dulles International Airport, Baltimore/Washington International Thurgood Marshall Airport and Ronald Reagan National Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

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Flight ticket prices by day: Seattle — Washington, D.C.

Below is a calendar of the lowest flight ticket prices for Seattle — Washington, D.C. by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from AED 376 in ,, and the most expensive are around AED 1,487 in r. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Seattle → Washington, D.C., average one-way price

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
JanAED 625lowMayAED 809mediumSepAED 809medium
FebAED 699mediumJunAED 957highOctAED 662low
MarAED 920highJulAED 920highNovAED 662low
AprAED 938highAugAED 846mediumDecAED 773medium

Some values are estimated based on seasonality.

When to fly

The warmest month in Washington, D.C. is July, with an average high temperature of 31.5°C; it is also considered the rainiest month. The coolest weather occurs in January, when temperatures can drop to -0.8°C.

The lowest airfares are recorded in August — starting AED 376. Flight costs peak in June, when offers start AED 1,487.

September offers a great compromise with comfortable temperatures around 26°C and affordable prices starting AED 544. It is recommended to avoid traveling in July if you are sensitive to high humidity and heat.

Temperature · Washington, D.C.

Dry and wet days · Washington, D.C.

Wind speed and direction · Washington, D.C.

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How to get the best deal on a Seattle — Washington, D.C. ticket

  • Book your tickets at least 4–6 weeks before your planned date, as this route is popular with business travelers and prices rise quickly.
  • To find the best fares, use the low price calendar, which allows you to compare flight costs across different days of the month.
  • Consider flights departing on a Tuesday or Wednesday — airlines often offer cheaper tickets mid-week compared to weekends.
  • Check the baggage allowance for different carriers, as Alaska Airlines and United may offer different terms on their basic fares for this route.

Airlines

Six airlines operate on the route from Seattle to Washington, D.C., with United Airlines, Delta Air Lines, and American Airlines handling the majority of the traffic. Most flights are direct, providing the fastest possible connection between the cities. You can view the detailed schedule for specific days of the week and route details in the list below.

  • Alaska Airlines
    Alaska AirlinesAS
    32x/week
    WebsiteFleet: 31545M pax/year
    • Direct flight SEA → IAD13x/week
      Duration
      5h 1m
      Days
      MTWTFSS
    • Direct flight SEA → BWI9x/week
      Duration
      5h 5m
      Days
      MTWTFSS
    • Direct flight SEA → DCA9x/week
      Duration
      5h 15m
      Days
      MTWTFSS
  • Hawaiian Airlines
    Hawaiian AirlinesHA
    13x/week
    WebsiteFleet: 7511M pax/year
    • Direct flight SEA → DCA13x/week
  • American Airlines
    American AirlinesAA
    10x/week
    WebsiteFleet: 965211M pax/year
    • Direct flight SEA → IAD10x/week
      Duration
      5h 3m
      Days
      MTWTFSS
  • United Airlines
    United AirlinesUA
    9x/week
    WebsiteFleet: 956165M pax/year
    • Direct flight SEA → IAD9x/week
      Duration
      5h 7m
      Days
      MTWTFSS
  • Delta
    DeltaDL
    7x/week
    WebsiteFleet: 986190M pax/year
    • Direct flight SEA → IAD5x/week
      Duration
      5h 2m
      Days
      MTWTFSS
    • Direct flight SEA → DCA2x/week
      Duration
      5h 5m
      Days
      MTWTFSS
  • Qatar Airways
    Qatar AirwaysQR
    4x/week
    WebsiteFleet: 26640M pax/year
    • Direct flight SEA → IAD4x/week
      Duration
      5h 1m
      Days
      MTWTFSS

Cities and airports on the Seattle — Washington, D.C. route

Flights Seattle — Washington, D.C. depart from Seattle-Tacoma International Airport and Paine Field and arrive at Washington Dulles International Airport, Baltimore/Washington International Thurgood Marshall Airport and Ronald Reagan National Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure airports
Arrival airports

Interesting articles about Washington, D.C.

Frequently asked questions about the Seattle — Washington, D.C. flight

How long is the flight from Seattle to Washington, D.C.?

A direct flight between the cities takes approximately 4.5–5 hours, covering a distance of 3,745 km.

Which airlines fly this route?

Regular flights are operated by airlines such as Alaska Airlines, United Airlines, Delta, and American Airlines.

How much is the cheapest ticket?

Ticket prices change constantly depending on demand; you can find the current minimum price for your dates in the low price calendar on this page.

Which airport does the flight arrive at?

Flights from Seattle most often arrive at Dulles International Airport (IAD) or Ronald Reagan Washington National Airport (DCA), both serving the capital region.

When is the best time to buy a ticket?

The most favorable deals usually appear 1–2 months before departure. Monitor the price dynamics chart to catch the moment when prices drop.

Where else you can fly from Seattle

Where else you can fly from Washington, D.C.

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