Flights from Washington Dulles to Seattle
IADBFI
Washington Dulles International Airport (Dulles, United States) → King County International Airport - Boeing Field (Seattle, United States)
Also known as Seattle.
- Est. nonstop
- ~5h 1m
- Distance
- 3,701 km
- One-way from
- $327
- Airlines
- NetJets Aviation
Fares by month
One-way, per personLowest fares Aviasales travelers found in recent searches; some may include a connection. Prices change often — tap a month to see live fares.
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Washington Dulles to Seattle — frequently asked
- How long is the flight from Washington Dulles to Seattle?
- IAD–BFI is about 5h 1m nonstop, covering 3,701 km (2,300 mi).
- Which airlines fly nonstop from Washington Dulles to Seattle?
- NetJets Aviation operates this route nonstop.
- How much is a flight from Washington Dulles to Seattle?
- One-way fares on IAD–BFI recently started from $327. The lowest recent fare is for travel in November 2026. Fares change daily, so check current prices before booking.