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Route

Seattle → Dulles

BFISeattleKing County International Airport - Boeing Field
IADDullesWashington Dulles International Airport
Distance
2,300 mi
Estimated flight time
~5h 10m

Dulles is currently 3 hours ahead of Seattle.

Observed nonstop

View the reverse route

How often does this route fly?

Frequency

Daily at most

On average around 1 flights a day, observed from October 2025 to September 2026.

1
flights per day
2
busiest month · Sep
1
quietest month · Oct
4 hr 10 min
measured flight time
12 / 12
months seen

Through the year

Per day, month by month

  1. 1Jan2026
  2. 1Feb
  3. 1Mar
  4. 1Apr
  5. 1May
  6. 1Jun
  7. 1Jul
  8. 1Aug
  9. 2Sep
  10. 1Oct2025
  11. 1Nov
  12. 1Dec

In December 2025 we saw less traffic at Seattle in general than usual; compare that month with care.

Airlines

Who flies it

Red Barn Operationsspring

Through the day

Departure times

Local time in Seattle. Most departures between 12:00 and 15:00.

  1. 00:00
  2. 01:00
  3. 02:00
  4. 03:00
  5. 04:00
  6. 05:00
  7. 06:00
  8. 07:00
  9. 08:00
  10. 09:00
  11. 10:00
  12. 11:00
  13. 12:00
  14. 13:00
  15. 14:00
  16. 15:00
  17. 16:00
  18. 17:00
  19. 18:00
  20. 19:00
  21. 20:00
  22. 21:00
  23. 22:00
  24. 23:00

Through the week

By weekday

  1. 0.4Mon
  2. 0.3Tue
  3. 0.4Wed
  4. 0.5Thu
  5. 0.3Fri
  6. 0.1Sat
  7. 0.2Sun

Fleet

Aircraft observed

  1. Cessna Citation LongitudeC70018%
  2. Bombardier Challenger 600CL6016%
  3. Bombardier Global ExpressGLEX12%
  4. Bombardier Challenger 350CL359%
  5. Gulfstream IVGLF45%
All the numbers in a table
MonthPer daySeenAirlines
January 2026115
  • Red Barn Operations2×
February 202616–
    March 2026111
    • Red Barn Operations2×
    April 2026110
    • Red Barn Operations1×
    May 202615–
      June 2026112
      • Red Barn Operations2×
      July 2026110
      • Red Barn Operations1×
      August 202613–
        September 2026215
        • Red Barn Operations2×
        October 2025112
        • Red Barn Operations5×
        November 202515–
          December 202512–

            Airlines observed on this route

            From observed callsign routes on BFI-IAD - not a booking guarantee.

            Red Barn Operations

            RDN

            Hub: BFI Seattle

            16 departure airportsView airline →

            About this route

            • Domestic route: both airports are in the same country.
            • The 6th longest observed direct route from BFI, out of 63.
            • The opposite direction has also been observed as a direct connection.
            • Direct destinations observed from Seattle: 63.
            • Direct destinations observed from Dulles: 171.

            The airports on this route

            King County International Airport - Boeing Field

            Seattle, United StatesBFI / KBFI

            Regional airport · 63 direct destinations · 2 runways · longest runway 10,007 ft

            58 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center

            Airport pageAll direct destinations

            Washington Dulles International Airport

            Dulles, United StatesIAD / KIAD

            International hub · 171 direct destinations · 4 runways · longest runway 11,499 ft

            79 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center

            Airport pageAll direct destinations

            Alternative airports for this journey

            Same journey, a different airport nearby - with an observed direct connection.

            SEA IADSeattle–Tacoma International AirportSeattle is about 6 mi from Seattle.View route →PAE IADSeattle Paine Field International AirportEverett is about 26 mi from Seattle.View route →

            About the route from Seattle to Dulles

            The observed direct connection between King County International Airport - Boeing Field (BFI) and Washington Dulles International Airport (IAD) covers approximately 2,300 mi. The estimated flight time is around 5h 10m. Red Barn Operations has been observed on this connection in the available route data.

            Frequently asked questions about this route

            How far is Seattle from Dulles by air?
            The great-circle distance between King County International Airport - Boeing Field and Washington Dulles International Airport is approximately 2,300 mi.
            How long is the flight from Seattle to Dulles?
            Based on the distance, the estimated flight time is about 5h 10m. This is an estimate, not a schedule.
            Is there a direct connection from Seattle to Dulles?
            Yes, a direct connection between BFI and IAD has been observed in our route data.
            Which airlines have been observed on this route?
            In the available route data: Red Barn Operations.
            How often is there a flight from Seattle to Dulles?
            On average around 1 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 106 observed flights. Mainly Red Barn Operations. That is an observation, not a timetable.
            What is the current time difference between Seattle and Dulles?
            Dulles is currently 3 hours ahead of Seattle.

            Where this data comes from

            The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.

            The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.

            Route data updated on October 11, 2026.