Seattle to San Francisco (BFI–SFO) — Airlines, Schedules & Connections

BFI Airport Page →
685 mi airlines 6/wk
On-time Some delays Frequent delays
Flight Schedule 0 flights Verified 26m ago
Nonstop 1-Stop 2-Stop Hide separate tickets Hide overnight
  Flight Airline AC Dep Arr Dur OTP Sched  

No flights match your filters.

No nonstop flights on this route. connecting options below.

1-STOP
2-STOP Loading...
Seattle to San Francisco
Connecting service available through multiple hubs.
6 Flights/wk 685 mi 2h 33m nonstop -1h behind 49 1-stop hubs

While no nonstop service exists between BFI and SFO, connecting options are available through 49 hubs.

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for BFI to SFO.
1-STOP
One-Stop Connections
49
Hubs
~4h
Fastest
~30h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
193
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.

On-Time Performance

What to expect at each end of your journey.
Outbound
BFI → SFO
95%
Generally reliable. Most flights run on time.
Arriving
95%
Return
SFO → BFI
82%
Generally reliable. Most flights run on time.
Departing
82%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. SFO delays →

Other ways to reach San Francisco from Seattle

Nearby airports with service to San Francisco International Airport.
Metric BFI→SFO SEA→SFO PAE→SFO
Distance from BFI 5 mi 26 mi
Nonstop airlines 0 16 4
Weekly flights 6 271 36
Flight time 2h 33m 2h 12m 2h 10m
Airports within 200 miles of BFI with service to San Francisco International Airport.

Travel Essentials

Practical planning for this route.
Time Difference
-1h
San Francisco is 1 hour behind Seattle.
BFI: MDT · SFO: PDT

When it's 6:00 PM in Seattle, it's 5:00 PM in San Francisco.
Distance & Flight Time
685 mi / 1,102 km
Nonstop flight time is approximately 2h 33m to 2h 41m.
Getting from SFO

BART from SFO station (free AirTrain from any terminal to the station) to downtown San Francisco takes 30–40 minutes ($10.45 to Embarcadero). Traffic on 101 can make taxis and ride-hails much slower during peak hours; BART skips all of that. BART also reaches Oakland, Berkeley, and Millbrae for Caltrain connections.Ride-hails from SFO use a dedicated garage pickup area; follow signs. Taxis are metered; downtown SF costs $40–60. Caltrain to the Peninsula (Mountain View, Palo Alto, San Jose) requires taking BART to Millbrae station for the transfer. Rental cars are at a consolidated facility accessible by AirTrain.

San Francisco Climate

Coastal fog dominates the climate pattern. The thick marine layer ("Karl the Fog") rolls into SFO from the Pacific regularly in summer (June–September), causing significant low-visibility delays even on days that appear sunny inland. Morning fog burns off by afternoon most days, but persistent IFR conditions can last all day. This is the primary flight disruption risk at SFO.

Temperatures are mild year-round (10–20°C) with little seasonal variation. Winters bring rain (December–March) and occasional atmospheric river events that cause brief but intense flooding on the 101. Summers are cool. Pack a light jacket year-round. Wind off the bay affects small aircraft approach paths.

BFI–SFO Quick Facts

Key statistics for the Seattle to San Francisco route.
Route details
Distance685 mi / 1,102 km
Flight time2h 33m to 2h 41m
Time difference-1 hour
Airlines (nonstop)0
Weekly flights6 out / 6 return
1-stop connections49 hubs
Origin: BFI
IATA / ICAOBFI / KBFI
TimezoneAmerica/Boise
Passengers/yr0.1M
Elevation21 ft / 6 m
Destination: SFO
IATA / ICAOSFO / KSFO
TimezoneAmerica/Los_Angeles
Passengers/yr52.3M
Elevation13 ft / 4 m

Frequently Asked Questions

Common questions about BFI to SFO flights.
Nonstop flights from King County International Airport - Boeing Field to San Francisco International Airport take approximately 2h 33m to 2h 41m. The route covers 685 miles.
There are approximately 6 nonstop flights per week from BFI to SFO. The return direction has about 6 weekly flights.
Yes, 1-stop connections are available through RNO, PDX, PAE, OAK, MRY, YVR, SZT, GEG, PSC, VNY, TRM, SBA, SCF, BZN, SAN, APA, UDD, JAC, LAS, SUN, SLC, SNA, PSP, LAX, SAF, TUS, DEN, SLN, DAL, MSP, PVR, PWK, SEA, DFW, ORD, CLT, YYZ, RIC, PBI, BWI, IAD, DCA, PHX, TEB, BOS, MIA, HND, DUB and SEZ. These options provide additional schedule flexibility.
San Francisco is 1 hour behind Seattle.
Yes, return flights from SFO to BFI are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include SEA and PAE. See the Alternatives section for a full comparison.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from BFI to SFO

King County International Airport - Boeing Field (BFI) and San Francisco International Airport (SFO) are connected through multiple connecting hub airports.

BFI to SFO Flight Duration and Schedule

Nonstop flight time from BFI to SFO ranges from 2 hours 33 minutes to 2 hours 41 minutes. The route covers a distance of 685 miles (1,102 km). There are approximately 6 weekly flights outbound and 6 return, totaling 12 flights per week in both directions.

Connecting Options and Alternatives

49 one-stop connections are available, with the fastest taking approximately 4 hours via RNO. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Seattle (SEA) and Everett (PAE).