San FranciscoSeattleFlight TimeSFO–SEA
San Francisco (San Francisco International Airport) to Seattle (Seattle-Tacoma International Airport).
The flight from San Francisco (SFO) to Seattle (SEA) takes 1h 41m on average, covering about 735 miles. Across 4 flights we tracked, the fastest was 1h 38m and the slowest 1h 43m, with Alaska Airlines flying it most often.
Plan this routeAt a glance
| Avg flight time | Distance | Fastest tracked | Airlines |
|---|---|---|---|
| 1h 41m | 735 mi | 1h 38m | 2 |
Airlines on this route
Captured airlines for SFO to SEA
Our current provider sample includes 21-22/day from SFO to SEA across 3 captured airlines. Captured departure terminal data is available for 1, 2.
- First departure
- 01:50
- Last departure
- 22:59
- Cadence
- ~every 30 min
- Captured departures/day
- 38
| Airline | Captured daily freq. | Aircraft | Departures (local) |
|---|---|---|---|
| Alaska Airlines | 8-9/day | Boeing 737 · Terminal 1 · Seat map | 06:0006:03 |
Aircraft we tracked
Flying the other way?
SEA to SFO flight time (4 tracked flights) →Flight times usually differ by direction — jet-stream winds make eastbound crossings faster than westbound ones.
Methodology: figures are aggregated from 4 real flights on this route tracked between 2026-06-07 and 2026-06-13, sourced from live flight data. Updated daily as new flights are observed.
Route FAQ
How long is the flight from SFO to SEA?
The SFO to SEA flight takes 1h 41m on average based on 4 tracked flights.
How far is SFO from SEA?
SFO to SEA is about 735 miles by air.
Which airlines fly from SFO to SEA?
Alaska Airlines, United Airlines fly the SFO to SEA route in our tracked route data.
What aircraft fly from SFO to SEA?
Aircraft observed on SFO to SEA include Boeing 737-800, Airbus A320.