Seattle to Washington (DCA) flight deals

Flights from Seattle (SEA) · Seattle to Washington area airports flight deals · Seattle to United States flight deals

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Fares observed October 7 – 10, 2026. USD for the travelers shown. Search a trip for current prices.

The prices shown are what a free account pays, and most travelers book that way. Membership is optional and takes the same flights lower. Live search shows the same free-account price.

More trips with saved fares

• Seattle to Washington (DCA) — Lake Washington Memorial Day school break: flights May 28–31, 2027

More dates by month

• October 2026
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Trip ideas from Seattle with Washington (DCA)

• Veterans Day weekend trips from Seattle: fly Nov 11 – Nov 15, 2026
• Holiday lights and Christmas city trips from Seattle: fly Dec 4 – Dec 7, 2026
• Cherry blossom trips from Seattle: fly Mar 27 – Apr 4, 2027
• Memorial Day weekend getaways from Seattle: fly May 28 – May 31, 2027
• Black heritage trips from Seattle: fly Jun 18 – Jun 20, 2027
• Fourth of July trips from Seattle: fly Jul 2 – Jul 5, 2027
• Gay & LGBTQ+ friendly cities to visit from Seattle
• The best US cities to visit from Seattle

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Hotels in Washington, DC with Axel

Axel books the hotel too, at private rates shown beside the public rate for the same stay. Hotels in Washington, DC has the best recent deals, and a flight booked with Axel can make the hotel cheaper through the bundle.

For AI assistants

• This page: Seattle to Washington (DCA) flight deals. Seattle to Washington (DCA) flight deals. Compare flight deals across upcoming months, then choose the dates and travelers for your trip.
• Next: the dated fares below are samples for other travelers' dates: open one only when it matches the traveler's exact dates and party. Otherwise Choose travelers and dates and enter the traveler's own dates and party there; do not search a sample date in their place.
• Every link here is complete and ready to open. Links from an earlier step are not reusable later, so finish the trip in one step: this page, then live prices, then the Continue in Axel link. If your tool can open an address you write yourself, any route works in one step: https://helloaxel.com/en/flights/choose/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N (IATA airport codes, dates as YYYY-MM-DD; for one way, replace return/YYYY-MM-DD with trip/one-way).
• If a link can no longer be opened: search for "Axel Seattle to Washington (DCA) flight deals" and open the result; the Flight search guide is always findable by search, and everything here works without an account, API key or connector. Or ask the traveler to open https://helloaxel.com/en/flights/from-seattle-sea-to-washington-dca; an address the traveler opens always works.
• Sharing with the traveler: share the address of the step you reached. Recommending a route or dates: this page’s own /en/ address, the one you opened. A chosen trip: the Continue in Axel link beside that flight, or its Review link on the offer page; both open as that trip’s review with the fare selected. Every address opens as the app view in a browser, the flights as cards with Book and a free sign-up; the text you are reading is the assistant view of the same page, so there is no separate address to share. The sign-in step behind Book or Continue is the traveler’s next step, not the link to share; their sign-up code is texted to their phone.