San FranciscoSeattleDirect FlightsSFO–BFI
San Francisco (San Francisco International Airport) to Seattle (Boeing Field/King County International Airport).
Flight time from SFO to BFI is estimated at about 2h, based on the 685-mile great-circle distance. Our current captured departure sample includes weekly across 2 captured airlines, with Delta Air Lines appearing most often in that sample.
Plan this routeAt a glance
| Est. flight time | Distance | Captured freq. | Type |
|---|---|---|---|
| ~2h Estimated from great-circle distance — no tracked flights yet. | 685 mi | weekly From the current provider sample; confirm live timetables before booking. | Domestic |
Airlines on this route
Captured airlines for SFO to BFI
Our current provider sample includes weekly from SFO to BFI across 2 captured airlines.
| Airline | Captured daily freq. | Aircraft | Departures (local) |
|---|---|---|---|
| Delta Air Lines | weekly | Boeing 757 · Seat map | — |
| VQBOY | weekly | GL7T | — |
Aircraft on this route
- Boeing 757
- GL7T
Methodology: airline, aircraft, terminal, and departure-time details come from the rolling scheduled-departures window for SFO to BFI, last seen May 7, 2026. Frequency uses 2 scheduled departures across 1 observed day; flight time is estimated from great-circle distance until this route has enough tracked flights for an observed average. Provider coverage can miss operators on some routes, so confirm live timetables before booking.
Route FAQ
How long is the flight from SFO to BFI?
The SFO to BFI flight time is estimated at about 2h from great-circle distance until enough tracked flights are available.
How far is SFO from BFI?
SFO to BFI is about 685 miles by air.
Which airlines fly from SFO to BFI?
Our current provider sample for SFO to BFI includes Delta Air Lines, VQBOY. Confirm live timetables before booking.
What aircraft fly from SFO to BFI?
Aircraft captured in our current provider sample for SFO to BFI include Boeing 757, GL7T.