Cheapest one-way
£ 293.88
Alaska Airlines · Nonstop
One-way tickets on SEA–SFO recently started around £ 293.88.
Flights from Seattle to San Francisco
Looking for cheap flights from Seattle to San Francisco? Fares on the SEA–SFO corridor have started around £ 586.97; review the latest prices, carriers and travel times here.
Seattle to San Francisco flights overview
BookingTrolley's most recent fare data for the Seattle to San Francisco route shows tickets from £ 586.97. Across the months we have sampled, the typical round-trip fare averages about £ 703.89. Nov tends to be the cheapest month to fly (around £ 586.97), while Jun is usually the most expensive at about £ 873.74 — a swing of roughly 49%.
SEA and SFO sit roughly 1,093 km apart, so total travel time depends on whether you fly nonstop or connect. BookingTrolley found 4 airlines currently compete on the SEA–SFO corridor, with Alaska Airlines posting one of the lowest fares at £ 586.97. 4 of them offer nonstop options, which save layover time but can cost more than connecting itineraries.
Frequently asked questions about flying from Seattle to San Francisco
According to BookingTrolley fare data on the Seattle to San Francisco route (SEA–SFO), round-trip tickets started at £ 586.97. Prices are shown in USD for comparison; United Kingdom travellers should confirm the final checkout currency on BookingTrolley.
Flight time from Seattle to San Francisco depends on the airline and on whether the itinerary is nonstop or connecting. BookingTrolley shows a duration only when it is calculated from observed departure and arrival times.
Recent BookingTrolley comparisons list Alaska Airlines (from £ 586.97), American Airlines (from £ 616.99), United Airlines (from £ 645.43) among the lowest fares on Seattle to San Francisco. Carrier availability changes with season and sales.
Mid-week departures and shoulder seasons usually cost less. According to BookingTrolley fare data on the Seattle to San Francisco route (SEA–SFO), round-trip tickets started at £ 586.97. BookingTrolley helps United Kingdom travellers spot dips before peak travel.
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