SEA to SFO: Distance and Flight Time
The distance from Seattle–Tacoma International Airport (SEA) to San Francisco International Airport (SFO) is 1,093 km (679 mi). A typical nonstop flight covers it in about 1h 50m, heading south. The distance is the same in either direction (SFO to SEA).
How far is it from Seattle to San Francisco?
The great-circle distance between Seattle–Tacoma International Airport (SEA) and San Francisco International Airport (SFO) is 1,093 km (679 mi, 590 nautical miles). That is the straight-line distance; a real flight is a little longer because of air-traffic routing.
How long is the flight from SEA to SFO?
A nonstop flight typically takes about 1h 50m. This is an estimate from the distance; actual block times depend on the aircraft, winds and the exact routing. SFO is roughly south of SEA.
How is the SEA to SFO route written in code?
The pair is written SEA-SFO in IATA codes and KSEA-KSFO in ICAO codes, the form used on a flight plan. Seattle–Tacoma International Airport is SEA (KSEA), San Francisco International Airport is SFO (KSFO).
| SEA | SFO | |
|---|---|---|
| Airport | Seattle–Tacoma International Airport | San Francisco International Airport |
| ICAO code | KSEA | KSFO |
| Country | United States | United States |
| Elevation | 433 ft | 13 ft |
| Rank by connections | #67 | #46 |
Both ICAO codes start with K, the prefix ICAO assigns to the contiguous United States, so this is a route inside one ICAO region. How ICAO prefixes are laid out.
SFO sits 420 ft (128 m) lower than SEA, which is a real difference in air density on takeoff.
Airlines flying SEA to SFO
3 airlines appear on this route in the open route dataset, 3 of them still listed as active. Each row gives the IATA code, the ICAO code and the radio callsign, which is what an air traffic controller hears:
| IATA | Airline | ICAO | Callsign | Status |
|---|---|---|---|---|
| AS | Alaska Airlines | ASA | Alaska | Active |
| UA | United Airlines | UAL | United | Active |
| VX | Virgin America | VRD | Redwood | Active |
A further 3 carriers sell this pair as a codeshare without operating it: AA, DL, KL.
Route and carrier data comes from the OpenFlights open dataset, regenerated here on . It is a historical snapshot of scheduled connections, not a live schedule, and it includes codeshare listings, so some carriers shown may no longer operate the route or exist. How we build this · Data and sources.
Frequently asked questions
How far is Seattle from San Francisco?
Seattle–Tacoma International Airport (SEA) and San Francisco International Airport (SFO) are 1,093 km (679 mi, 590 nautical miles) apart in a straight line.
How long is the flight from SEA to SFO?
A typical nonstop flight between SEA and SFO takes about 1h 50m. Actual times vary with aircraft type, winds and routing.
What direction is SFO from SEA?
San Francisco International Airport (SFO) lies roughly south of Seattle–Tacoma International Airport (SEA).
Which airlines fly SEA to SFO?
3 airlines appear on the SEA-SFO route in the open dataset, including Alaska Airlines, United Airlines, Virgin America.
Related routes
Other routes from Seattle (SEA):
Other routes from San Francisco (SFO):
SEA airport code · SFO airport code · Busiest airports worldwide