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.
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.
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.
Seattle → Washington, D.C., average one-way price
| Month | Average price | Level | Month | Average price | Level | Month | Average price | Level |
|---|---|---|---|---|---|---|---|---|
| Jan | AED 625 | low | May | AED 809 | medium | Sep | AED 809 | medium |
| Feb | AED 699 | medium | Jun | AED 957 | high | Oct | AED 662 | low |
| Mar | AED 920 | high | Jul | AED 920 | high | Nov | AED 662 | low |
| Apr | AED 938 | high | Aug | AED 846 | medium | Dec | AED 773 | medium |
Some values are estimated based on seasonality.
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.
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.
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.
A direct flight between the cities takes approximately 4.5–5 hours, covering a distance of 3,745 km.
Regular flights are operated by airlines such as Alaska Airlines, United Airlines, Delta, and American Airlines.
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.
Flights from Seattle most often arrive at Dulles International Airport (IAD) or Ronald Reagan Washington National Airport (DCA), both serving the capital region.
The most favorable deals usually appear 1–2 months before departure. Monitor the price dynamics chart to catch the moment when prices drop.
Where travelers fly most — pick a route and check prices
