Nonstop flights from Washington to Seattle
2 airlines fly this route, with up to 3 flights a day.
DCARonald Reagan Washington National
2,322 mi · 21 flights a week
SEASeattle-Tacoma International
When they leave
Washington time8:00a5:00pFirst departure 8:00 AM, last 5:00 PM
One morning flight at 8:00 AM, then one afternoon flight at 4:35 PM, then one evening flight at 5:00 PM. Every flight runs daily.
Every flight
Earliest first
Schedules last checked Sep 19, 2026. Times are local.
Flying from Washington to Seattle
Alaska Airlines flies most often, twice a day on the Boeing 737 and Boeing 737 MAX 8. Delta Air Lines flies daily on the Airbus A321neo.
There are 3 flights every day of the week. The first arrival in Seattle is at 10:58 AM and the last at 7:59 PM. The flight covers 2,322 miles.
Flying back, Seattle to Washington has 21 nonstop flights a week. Dulles (IAD) and Baltimore (BWI) also have nonstop flights to Seattle, 45 and 14 a week.
Return flights
Every Washington airport
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Find the cheapest day to fly from Washington to Seattle.
Schedules as of Oct 9, 2026.