San Francisco to Seattle (SFO–SEA) — Airlines, Schedules & Connections
Flight Schedule
187 flights
Verified 55m ago
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No flights match your filters.
No nonstop flights on this route. connecting options below.
✦ 1-Stop
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San Francisco to Seattle
3 carriers, 565 flights/week nonstop.
3 Airlines
565 Flights/wk
679 mi
1h 35m nonstop
136 1-stop hubs
SFO–SEA is served by 3 airlines with nonstop service. United Airlines, Alaska Airlines and Delta Air Lines lead the route. The flight covers 679 miles in approximately 1h 35m. Beyond nonstop, 136 hubs offer 1-stop connections.
Carriers on this route
Airline Landscape
All carriers operating nonstop SFO–SEA service, compared side by side.
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| UA United Airlines Also: AV, AZ, CM, EK, LX, NH, OZ, VA | 81 | 319, 320, 738, 7M8, B38M, E7W | 2h14-2h37 | Star Alliance | AV, AZ, CM, EK, LX, NH, OZ, VA | |
| AS Alaska Airlines Also: BA, CX, DE, FI, FJ, HA, JL, KE, QF, QR | 73 | 737, 739, 73G, 73J, 7M9, B39M | 2h15-2h24 | Oneworld | BA, CX, DE, FI, FJ, HA, JL, KE, QF, QR | |
| DL Delta Air Lines Also: AF, AM, KE, SK, VS, WS | 42 | 223, BCS1, BCS3, E75L, E7W | 2h09-2h23 | SkyTeam | AF, AM, KE, SK, VS, WS |
Aircraft on this route
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.
Schedule
Weekly Schedule Pattern
Nonstop flight frequency by day of week, SFO to SEA direction.
Mon
81
flights
Tue
79
flights
Wed
82
flights
Thu
75
flights
Fri
85
flights
Sat
76
flights
Sun
86
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
92
Nonstop flights
565
Outbound / wk
560
Return / wk
Connections
Connection Landscape
Beyond nonstop. 1-stop and 2-stop options for SFO to SEA.
1-STOP
One-Stop Connections
136
Hubs
~2h
Fastest
~46h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
4,425
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.
Alternatives
Other ways to reach Seattle from San Francisco
Nearby airports with service to Seattle–Tacoma International Airport.
| Metric | SFO→SEA | OAK→SEA | SJC→SEA |
|---|---|---|---|
| Distance from SFO | – | 11 mi | 30 mi |
| Nonstop airlines | 3 | 10 | 16 |
| Weekly flights | 565 | 122 | 225 |
| Flight time | 1h 35m | 1h 51m | 2h 1m |
| Departure OTP | 100% | – | – |
Oakland (OAK) to Seattle flights · San Jose (SJC) to Seattle flights · Concord (CCR) to Seattle flights
Airports within 200 miles of SFO with service to Seattle–Tacoma International Airport.
Know before you go
Travel Essentials
Practical planning for this route.
Time Difference
0h
Seattle is 0 hours
the same as
San Francisco.
SFO: PDT · SEA: PDT
When it's 6:00 PM in San Francisco, it's 6:00 PM in Seattle.
SFO: PDT · SEA: PDT
When it's 6:00 PM in San Francisco, it's 6:00 PM in Seattle.
Distance & Flight Time
679 mi / 1,093 km
Nonstop flight time is approximately 1h 35m to 2h 37m.
Getting to SFO
BART (Bay Area Rapid Transit) runs from downtown San Francisco (Embarcadero, Powell St.) to the SFO station and then a free AirTrain shuttle to all terminals (30–40 min from Embarcadero, $10.45). BART also connects Oakland and Berkeley; useful for East Bay travelers. Trains run from ~4am to midnight.Taxis from downtown San Francisco cost $40–60. Ride-hails (Uber, Lyft) pick up in the designated area in the garage and are often $30–50 depending on surge pricing. SamTrans buses serve Peninsula cities. Highway 101 and I-280 are heavily congested during commute hours; BART is faster than driving at those times.
Getting from SEA
Link Light Rail from the airport station (inside the terminal) to downtown Seattle takes 38 minutes ($3.50). No transfers needed; trains run 5am to 1am daily.Taxis and ride-shares to downtown cost $35–55. For Bellevue and Eastside destinations (across Lake Washington), ride-share is faster than Link. Car rentals are in the consolidated rental facility; take the free shuttle from baggage claim. Sound Transit buses serve Tacoma, Renton, and Federal Way.
Seattle Climate
Marine west coast climate. Winters are mild but persistently grey and rainy (3–9°C). Snow is rare at sea level but can occur December through February, causing significant disruptions when it does. The airport sits between Seattle and Tacoma in an area that receives more fog and low cloud than downtown Seattle.
Summers are famously pleasant (18–25°C) with low humidity and mostly clear skies, one of the best flying climates in the US from June through September. The wettest months are November through January.
Facts
SFO–SEA Quick Facts
Key statistics for the San Francisco to Seattle route.
Route details
Distance679 mi / 1,093 km
Flight time1h 35m to 2h 37m
Time difference0 hours
Airlines (nonstop)3
Weekly flights565 out / 560 return
1-stop connections136 hubs
Origin: SFO
Full nameSan Francisco International Airport
IATA / ICAOSFO / KSFO
TimezoneAmerica/Los_Angeles
Passengers/yr52.3M
Elevation13 ft / 4 m
Destination: SEA
Full nameSeattle–Tacoma International Airport
IATA / ICAOSEA / KSEA
TimezoneAmerica/Los_Angeles
Passengers/yr52.6M
Elevation433 ft / 132 m
FAQ
Frequently Asked Questions
Common questions about SFO to SEA flights.
Nonstop flights from San Francisco International Airport to Seattle–Tacoma International Airport take approximately 1h 35m to 2h 37m. The route covers 679 miles.
3 airlines operate nonstop service: Alaska Airlines, Delta Air Lines and United Airlines. Plus 23 codeshare partners.
There are approximately 565 nonstop flights per week from SFO to SEA. The return direction has about 560 weekly flights.
Yes, 1-stop connections are available through YKM, BLI, VNY, NUQ, PRB, PAE, YLW, YYJ, STS, BFI, AZA, HLN, ASE, SBD, COS, GTF, FTW, HDN, EGE, JNU, TUL, FXE, HOU, AFW, RFD, ELP, MEM, MTY, OKC, ICT, MKE, TEB, SJD, PVR, CHS, RSW, BZE, YYC, SJO, LIR, OMA, KEF, PSC, SMF, MFR, EUG, ONT, SUN, LAX, FAT, RDM, PDX, ANC, GEG, SLC, YVR, FCA, RNO, BUR, CVG, JAC, RDD, ACV, SAN, LAS, DAL, BOI, MSO, PHX, DEN, SBP, SNA, TUS, MCI, PSP, CMH, DFW, STL, ABQ, BNA, AUS, CUN, CLT, IND, MRY, MSP, MIA, OGG, ATL, LIH, MDW, IAH, MSY, CLE, ORD, PHL, NRT, DUB, KOA, BZN, DTW, PIT, IAD, RDU, YEG, SAT, TPA, FLL, BWI, MCO, SBA, BOS, EWR, HNL, JFK, AMS, FRA, PVG, DCA, FCO, LHR, HND, YYZ, MEX, GDL, ICN, TPE, HKG, SIN, MNL, CDG, MUC, DXB, PEK, IST and DOH. These options provide additional schedule flexibility.
Yes, return flights from SEA to SFO are available. Use the direction toggle at the top to view the return schedule.
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.
At SFO, Alaska Airlines uses Terminal 2. United operates from Terminal 3 and the G gates off the International Terminal. American uses Terminal 2. At SEA, Alaska operates from Concourse C and D in the main terminal. Delta uses Concourses A and B. United uses Concourse A. SEA's central terminal is connected to all concourses via the underground train, so domestic connections within the same airport are straightforward. SFO's terminals are not airside-connected; inter-terminal movement requires exiting security.
Alaska Airlines has the strongest historical presence on SFO–SEA, given Seattle is its home hub. United and Delta both run multiple daily departures as well, making this one of the more competitive West Coast corridors. Southwest also serves the route from SFO's Terminal 1. Combined departures across carriers typically reach 15–20 per day. Block time is about 2 hours 15 minutes northbound and 2 hours southbound with prevailing winds.
SFO marine-layer fog is one of the most predictable delay generators in the US system, concentrated in the June–August coastal stratus season and on winter low-pressure days. Departure delays of 30–60 minutes are common on affected mornings. SEA itself is prone to low cloud and rain in fall and winter but rarely generates ground stops. The combined effect is that SFO departures carry more morning risk than Seattle departures. Flights after 09:00 Pacific from SFO typically clear the worst of the fog delay window.
San Francisco to Seattle: The Dominant West Coast Tech Corridor
SFO–SEA connects two of the largest technology industry hubs in North America, with San Francisco and Seattle each home to major concentrations of software, hardware, and cloud computing employers. Alaska Airlines leads seat capacity given its Seattle hub, with United, Delta, Southwest, and American each adding multiple daily departures. Block time is 2 hours 15 minutes northbound. The route carries significant business demand driven by Amazon, Microsoft, Boeing, Salesforce, Google, Apple, and their supplier ecosystems, alongside strong leisure traffic between two cities with extensive hiking, skiing, and urban cultural offerings.
Frequency, Competition, and the Seattle Hub Dynamic
Alaska's SEA hub structures its banking around this corridor, with waves of SFO departures timed to connect into Alaska's broader network. United and Delta use SFO and SEA respectively as hubs, giving both carriers strong competitive positions. The result is one of the most frequently served 2-hour domestic routes in the US. Passengers not committed to a specific airline typically find competitive fares, and same-day standby or rebooking options are plentiful when delays occur. SEA recently completed a North Satellite expansion and a new international facility, improving connection times for passengers using SFO–SEA as a domestic leg before an international departure out of Seattle.