San Francisco (SFO) to Seattle (SEA) flights
3 airlines fly nonstop from San Francisco (SFO) to Seattle (SEA): Alaska Airlines, Delta Air Lines and United Airlines. The two airports are 679 miles (1,093 km) apart. Alaska Airlines is in oneworld, Delta Air Lines is in SkyTeam and United Airlines is in Star Alliance. There are also 30 ways to fly it with one stop, through Redding, Portland and Medford and more.
Airlines flying nonstop from SFO to SEA
- Alaska Airlinesoneworld · bookable with 9 programsWho books it
- Delta Air LinesSkyTeam · bookable with 8 programsWho books it
- United AirlinesStar Alliance · bookable with 13 programsWho books it
Book SFO to SEA with points
Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.
- Aeromexico RewardsBooks Delta Air Lines
- Air Canada AeroplanBooks United Airlines
- Air France-KLM Flying BlueBooks Delta Air Lines
- Air New Zealand AirpointsBooks United Airlines
- Alaska Atmos RewardsBooks Alaska Airlines
- American AAdvantageBooks Alaska Airlines
- ANA Mileage ClubBooks United Airlines
- Avianca LifeMilesBooks United Airlines
- British Airways ClubBooks Alaska Airlines
- Cathay Pacific Asia MilesBooks Alaska Airlines
- China Eastern Eastern MilesBooks Delta Air Lines
- Delta SkyMilesBooks Delta Air Lines
- Emirates SkywardsBooks United Airlines
- EVA Air Infinity MileageLandsBooks United Airlines
- Finnair PlusBooks Alaska Airlines
- Garuda Indonesia GarudaMilesBooks Delta Air Lines
- Iberia ClubBooks Alaska Airlines
- JAL Mileage BankBooks Alaska Airlines
- JetBlue TrueBlueBooks United Airlines
- Korean Air SKYPASSBooks Delta Air Lines
- Lufthansa Miles & MoreBooks United Airlines
- Qantas Frequent FlyerBooks Alaska Airlines
- Qatar Airways Privilege ClubBooks Alaska Airlines
- SAS EuroBonusBooks Delta Air Lines
- Singapore Airlines KrisFlyerBooks United Airlines
- TAP Miles&GoBooks United Airlines
- Thai Royal Orchid PlusBooks United Airlines
- Turkish Airlines Miles&SmilesBooks United Airlines
- United MileagePlusBooks United Airlines
- Virgin Atlantic Flying ClubBooks Delta Air Lines
SFO to SEA with one stop
30 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Redding (RDD)United Airlines, then Alaska Airlines
- Via Portland (PDX)Alaska Airlines the whole way
- Via Medford (MFR)United Airlines, then Alaska Airlines and Delta Air Lines
- Via Eugene (EUG)United Airlines, then Alaska Airlines and Delta Air Lines
- Via Redmond (RDM)Alaska Airlines the whole way
- Via Sacramento (SMF)United Airlines, then Alaska Airlines, Delta Air Lines and 1 more
- Via Arcata (ACV)United Airlines, then Alaska Airlines
- Via Reno (RNO)United Airlines, then Alaska Airlines
- Via Pasco (PSC)United Airlines, then Alaska Airlines and Delta Air Lines
- Via Monterey (MRY)United Airlines, then Alaska Airlines
- Via Fresno (FAT)United Airlines, then Alaska Airlines
- Via Boise (BOI)Alaska Airlines the whole way
- Via Vancouver (YVR)Air Canada the whole way
- Via Spokane (GEG)Alaska Airlines the whole way
- Via San Luis Obispo (SBP)United Airlines, then Alaska Airlines
SFO to SEA: common questions
Which airlines fly nonstop from SFO to SEA?
Alaska Airlines (oneworld), Delta Air Lines (SkyTeam) and United Airlines (Star Alliance) fly nonstop from San Francisco (SFO) to Seattle (SEA).
How far is San Francisco from Seattle by plane?
San Francisco (SFO) and Seattle (SEA) are 679 miles (1,093 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
Which points programs can book SFO to SEA award flights?
30 programs can book at least one of the nonstop airlines: Aeromexico Rewards, Air Canada Aeroplan, Air France-KLM Flying Blue, Air New Zealand Airpoints, Alaska Atmos Rewards, American AAdvantage, ANA Mileage Club, Avianca LifeMiles and 22 more. Which flights each can book depends on its partners, so check the airline before you transfer points.
How many miles does SFO to SEA cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for SFO to SEA with taxes and fees.
Where can I connect between San Francisco and Seattle?
The most direct connections are through Redding (RDD), Portland (PDX), Medford (MFR), Eugene (EUG) and Redmond (RDM). On 15 of them the same airline flies both flights, for example Alaska Airlines through Portland.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.