Cheap Flights from Seattle to San Francisco International

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Flight deals from Seattle to San Francisco International

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Find the cheapest month to fly from Seattle to San Francisco International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to San Francisco International flights are currently cheapest in November.

Direct flights from Seattle to San Francisco International

Seattle to San Francisco International: Alternative routes

Compare routes from Seattle to San Francisco below. You may find an airport to fly into that's cheaper, faster, or easier than San Francisco International.

Seattle to San Francisco: Flight information

The things to know before you go.
Cheapest flight found£99
Cheapest month to flyOctober
Average flight time2 hrs, 15 mins
Most popular airlineWestJet
Average flights per week2,048

Finding cheap flights from Seattle to San Francisco International: Frequently asked questions

The best price we found for a return flight from Seattle to San Francisco International is £99. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 15 minutes is the average flight time from Seattle to San Francisco International.
WestJet, Alaska Airlines and Delta fly direct from Seattle to San Francisco International.
As of April 2024, there are 765 flights per week flying from Seattle to San Francisco International.
The cheapest month to fly from Seattle to San Francisco International is usually October.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to San Francisco International Airport on Wednesday, 30 October 2024.
Yes – the average flight time is 2 hours and 15 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Francisco International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Francisco International is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to San Francisco International is Alaska Airlines .

This information is correct as of February 2016

Airlines that fly from Seattle to San Francisco

Alaska Airlines, Delta Connection and United Airlines all fly from Seattle-Tacoma International Airport to San Francisco.

Terminal Information – Departing

This is only a guideline. Always check your boarding pass for up-to-date terminal information.

Seattle Airport has one terminal building which is split into concourses. Alaska Airlines fly from concourses A, C, D and N. Delta Connection fly from A, B and S. United Airlines fly from concourse A. Each area has its own selection of shops and places to eat. Concourse A's selection includes a Starbucks, a Great American Bagel Bakery and a Seattle Taproom bar. The B gates also have a Starbucks as well as a McDonalds, a Quiznos and a Casa del Agave. In addition to Starbucks and a few international snack bars, the C gates have a Beecher's Handmade Cheese shop. The D gates don't have a Starbucks, but have a Seattle's Best Coffee house instead. They also have a small selection of eateries, as do the N Gates which also have a Seattle Seahawks 12 Club. The S Gates have a smaller selection, but it includes a seafood bar. The shops by the gates usually sell souvenirs, magazines and other last-minute essentials.

Terminal Information – Arriving

Flights from Seattle land in the domestic terminal. San Francisco Airport is well connected to the city centre by bus, train and taxi. Cabs are metered, but you can expect to pay about $40* (just under £29) for a trip into downtown.  The BART Rapid Rail station is in the international terminal, which you can reach using the AirTrain shuttle or buses KX, 292. 397 and 398. Car hire at San Francisco Airport is available from the Rental Car Center, which you can reach on buses 140, 292 and 397.

Practical Information

American citizens can use their driving license as identification on this route. Foreigners (including British citizens) will need to use their passport for security reasons. We recommend arriving at the airport no later than one hour before your flight is scheduled to depart.

What to expect in San Francisco

San Francisco has less rainfall than Seattle, with very little rain between April and November. Temperatures in San Francisco are fairly standard all year round, ranging from an average low of 10°C in January to 14°C in July. This means the city is warmer than Seattle during the winter, but cooler during the summer. Prices in San Francisco are higher. Expect to pay around $15* (just under £11) more for dinner for two, and about $1* (about 70p) more for a beer. Taxi rates are a bit more expensive in San Francisco, too.

*Prices subject to change


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Prices shown on this page are estimated lowest prices only. Found in the last 45 days.