Compare 6 loyalty programs for Washington, D.C. to Seattle award flights, with economy seats from 10,000 points.
Washington, D.C. to Seattle is a transcontinental domestic route; nonstop award space turns up on Delta, Alaska Airlines, and United Airlines. It's priced by six programs, and the cheapest economy award is 10,000 points through American AAdvantage. Domestic cash fares can rival awards, so check the cash price first and redeem when the award price is low. The live tables below re-price IAD–SEA across all six programs every day.
Best one-way award prices per airline over the next 12 months.
| Airline | Economy | Business | First |
|---|---|---|---|
 American AirlinesAA | 10,000Lowest | 59,700Lowest | 25,000Lowest |
 DeltaDL | 14,300pts | Not available | Not available |
 United AirlinesUA | 15,000pts | Not available | Not available |
 Alaska AirlinesAS | 17,500pts | Not available | 25,000Lowest |
 Air CanadaAC | 26,500pts | Not available | Not available |
When award seats between Washington, D.C. and Seattle price cheapest over the next year.
| Month | Cheapest award (points) |
|---|---|
| Nov 2026 | 10,000 |
| Dec 2026 | 23,300 |
| Jan 2027 | 23,000 |
| Feb 2027 | No award data |
| Mar 2027 | No award data |
| Apr 2027 | No award data |
| May 2027 | 25,000 |
| Jun 2027 | 12,000 |
| Jul 2027 | 15,000 |
| Aug 2027 | No award data |
| Sep 2027 | No award data |
| Oct 2027 | No award data |
5 airlines with award seats between Washington, D.C. and Seattle, nonstop or connecting.
American AirlinesAAAir CanadaACAlaska AirlinesASDeltaDLUnited AirlinesUAWhat to know before booking Washington, D.C. to Seattle with points.
About 2,300 miles, roughly 5h05 nonstop. Seattle runs 3 hours behind Washington, D.C.. The data runs November 2026–November 2027, with calendar prices for six months. Counting well-covered months only, November 2026 is the cheapest (10,000 points), ahead of June 2027 (12,000) and July 2027 (15,000).
Washington, D.C. to Seattle is served by American Airlines, Air Canada, Alaska Airlines and 2 more, offering multiple options for award travelers. Compare 6 loyalty programs to find the best value for your points. Award prices start from 10,000 points in economy. Use our search tool to check real-time award availability on this route.
Flying Washington, D.C. to Seattle covers about 2,300 miles, linking Washington Dulles International Airport (IAD) with Seattle-Tacoma International Airport (SEA); a nonstop takes roughly 5h05, with winds moving it either way. Delta, Alaska Airlines, and United Airlines all carry nonstop award space in the data. Aircraft logged on those nonstops include the Airbus A220-300 and Boeing 737-900. Expect mostly connecting results: only about 11% of the award options in the data are nonstop.
On a domestic run like Washington, D.C.–Seattle, award prices go head to head with cash fares. The economy floor connects once; an economy nonstop on any of the three carriers costs more. The cheapest economy seat adds about $6 in taxes and fees, in line with the route's typical economy taxes. Run the miles-or-cash math each time: a cheap fare usually beats spending points. Before moving bank points anywhere, confirm the seat is bookable, since transfers are one-way.
American AAdvantage wins economy at 10,000 points and first class at 25,000. Qantas Frequent Flyer takes business class at 59,700 points. Among the remaining four programs, Alaska Atmos Rewards, Delta SkyMiles, and United MileagePlus are good places to cross-check. The cheapest program changes twice across the cabins, so match the program to the seat before moving points.
Nonstop award space on Washington, D.C.–Seattle spans three alliances: Delta (SkyTeam), Alaska Airlines (oneworld), and United Airlines (Star Alliance). That means partner programs in all three alliances have a way onto a nonstop. Connecting awards near the price floor run through Dallas/Fort Worth, Los Angeles, and San Diego. Partner pricing sets the business-class floor: Qantas Frequent Flyer books American Airlines as a oneworld partner, and no program prices American Airlines lower in that cabin at last check.
For Washington, D.C. departures, Washington (DCA) matches the route's 10,000-point economy floor; Baltimore (BWI) prices from 15,500. Washington and Baltimore have nonstop flights to Seattle in the data too. Confirm which Washington, D.C. airport the award uses before transferring points.
Alternative corridors travelers consider alongside Washington, D.C. to Seattle.
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Common questions travelers ask about the Washington, D.C. to Seattle route.
