Air Miles Calculator

Distance between Seattle, WA (BFI) and San Francisco, CA (SFO)

Flight distance from Seattle to San Francisco (Seattle Boeing Field – San Francisco International Airport) is 684 miles / 1101 kilometers / 594 nautical miles. Estimated flight time is 1 hour 47 minutes.

Driving distance from Seattle (BFI) to San Francisco (SFO) is 814 miles / 1310 kilometers and travel time by car is about 14 hours 49 minutes.

Map of flight path and driving directions from Seattle to San Francisco.

Shortest flight path between Seattle Boeing Field (BFI) and San Francisco International Airport (SFO).

How far is San Francisco from Seattle?

There are several ways to calculate distances between Seattle and San Francisco. Here are two common methods:

Vincenty's formula (applied above)
  • 684.115 miles
  • 1100.977 kilometers
  • 594.480 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
  • 684.795 miles
  • 1102.070 kilometers
  • 595.070 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

Airport information


A Seattle Boeing Field
City: Seattle, WA
Country: United States Flag of United States
IATA Code: BFI
ICAO Code: KBFI
Coordinates: 47°31′47″N, 122°18′7″W

B San Francisco International Airport
City: San Francisco, CA
Country: United States Flag of United States
IATA Code: SFO
ICAO Code: KSFO
Coordinates: 37°37′8″N, 122°22′30″W

Time difference and current local times

There is no time difference between Seattle and San Francisco.

Time Difference

Seattle, WA

 PST

San Francisco, CA

 PST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 123 kg (271 pounds).

Frequent Flyer Miles Calculator

Seattle (BFI) → San Francisco (SFO).

Distance:
684
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
684

Round trip?