SEA - SFO

Find cheap flights from Seattle to San Francisco

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KAYAK searches hundreds of travel sites at once for deals on flights to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to San Francisco, as well as popular online travel agencies
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Cheap Flight Deals from Seattle to San Francisco (SEA-SFO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Seattle to San Francisco that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from Seattle to San Francisco

KAYAK's recommended return flight deals from the most popular airlines that fly from Seattle to San Francisco.
Discover the best prices for you by selecting your travel dates on KAYAK.
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Condor Logo
SEA-SFO
2h 15mdirect
Condor Logo
SFO-SEA
2h 10mdirect
Condor
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Japan Airlines Logo
SEA-SFO
2h 12mdirect
Japan Airlines Logo
SFO-SEA
2h 12mdirect
Japan Airlines
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Icelandair Logo
SEA-SFO
2h 13mdirect
Icelandair Logo
SFO-SEA
2h 16mdirect
Icelandair
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Fiji Airways Logo
SEA-SFO
2h 13mdirect
Fiji Airways Logo
SFO-SEA
2h 10mdirect
Fiji Airways
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Delta Logo
SEA-SFO
2h 17mdirect
Delta Logo
SFO-SEA
2h 19mdirect
SWISS Logo
SEA-SFO
2h 19mdirect
SWISS Logo
SFO-SEA
2h 14mdirect
Air New Zealand Logo
SEA-SFO
2h 12mdirect
Air New Zealand Logo
SFO-SEA
2h 26mdirect
Air New Zealand
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United Airlines Logo
SEA-SFO
2h 12mdirect
United Airlines Logo
SFO-SEA
2h 19mdirect
United Airlines
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Qantas Airways Logo
SEA-SFO
2h 18mdirect
Qantas Airways Logo
SFO-SEA
2h 17mdirect
Qantas Airways
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Scandinavian Airlines Logo
SEA-SFO
2h 19mdirect
Scandinavian Airlines Logo
SFO-SEA
2h 19mdirect
Scandinavian Airlines
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Iberia Logo
SEA-SFO
2h 14mdirect
Iberia Logo
SFO-SEA
2h 11mdirect
Iberia
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Korean Air Logo
SEA-SFO
2h 18mdirect
Korean Air Logo
SFO-SEA
2h 05mdirect
Korean Air
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WestJet Logo
SEA-SFO
2h 26mdirect
WestJet Logo
SFO-SEA
2h 28mdirect
WestJet
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Air China Logo
SEA-SFO
2h 12mdirect
Air China Logo
SFO-SEA
2h 14mdirect
Air China
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Singapore Airlines Logo
SEA-SFO
2h 17mdirect
Singapore Airlines Logo
SFO-SEA
2h 04mdirect
Singapore Airlines
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American Airlines Logo
SEA-SFO
2h 11mdirect
American Airlines Logo
SFO-SEA
2h 05mdirect
American Airlines
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KLM Logo
SEA-SFO
2h 19mdirect
KLM Logo
SFO-SEA
2h 28mdirect
Qatar Airways Logo
SEA-SFO
2h 18mdirect
Qatar Airways Logo
SFO-SEA
2h 04mdirect
Qatar Airways
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Air France Logo
SEA-SFO
2h 16mdirect
Air France Logo
SFO-SEA
2h 22mdirect
Air France
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Emirates Logo
SEA-SFO
2h 18mdirect
Emirates Logo
SFO-SEA
2h 21mdirect
Emirates
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China Eastern Logo
SEA-SFO
2h 17mdirect
China Eastern Logo
SFO-SEA
2h 22mdirect
China Eastern
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Copa Airlines Logo
SEA-SFO
2h 17mdirect
Copa Airlines Logo
SFO-SEA
2h 23mdirect
Copa Airlines
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Asiana Airlines Logo
SEA-SFO
2h 12mdirect
Asiana Airlines Logo
SFO-SEA
2h 19mdirect
Asiana Airlines
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Virgin Australia Logo
SEA-SFO
2h 15mdirect
Virgin Australia Logo
SFO-SEA
2h 19mdirect
Virgin Australia
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Aeromexico Logo
SEA-SFO
2h 16mdirect
Aeromexico Logo
SFO-SEA
2h 19mdirect
Aeromexico
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Alaska Airlines Logo
SEA-SFO
2h 18mdirect
Alaska Airlines Logo
SFO-SEA
2h 04mdirect
Alaska Airlines
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Avianca Logo
SEA-SFO
2h 15mdirect
Avianca Logo
SFO-SEA
2h 20mdirect
Avianca
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Cathay Pacific Logo
SEA-SFO
2h 15mdirect
Cathay Pacific Logo
SFO-SEA
2h 10mdirect
Cathay Pacific
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Turkish Airlines Logo
SEA-SFO
2h 19mdirect
Turkish Airlines Logo
SFO-SEA
2h 14mdirect
Turkish Airlines
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Finnair Logo
SEA-SFO
2h 11mdirect
Finnair Logo
SFO-SEA
2h 10mdirect
Finnair
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Hawaiian Airlines Logo
SEA-SFO
2h 18mdirect
Hawaiian Airlines Logo
SFO-SEA
2h 05mdirect
Hawaiian Airlines
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ANA Logo
SEA-SFO
2h 12mdirect
ANA Logo
SFO-SEA
2h 19mdirect
Air Tahiti Nui Logo
SEA-SFO
2h 18mdirect
Air Tahiti Nui Logo
SFO-SEA
2h 04mdirect
Air Tahiti Nui
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Virgin Atlantic Logo
SEA-SFO
2h 17mdirect
Virgin Atlantic Logo
SFO-SEA
2h 28mdirect
Virgin Atlantic
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British Airways Logo
SEA-SFO
2h 13mdirect
British Airways Logo
SFO-SEA
2h 15mdirect
British Airways
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KAYAK's insights & trends for Seattle to San Francisco flights

Get data-powered insights and trends into flights from Seattle to San Francisco to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Seattle to San Francisco?

The average price of all round-trip flights from Seattle to San Francisco clicked on KAYAK for each day over the last 12 months.
For Seattle to San Francisco, Sunday is the cheapest day to fly on average and Monday is the most expensive. Flying from San Francisco back to Seattle, the best deals are generally found on Friday, with Wednesday being the most expensive.

What is the cheapest month to fly from Seattle to San Francisco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to San Francisco, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Seattle to San Francisco is January, where tickets cost S$ 269 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is S$ 363 and S$ 357 respectively.

Can I save money by flying with a stopover from Seattle to San Francisco?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.
No, with an average price for the route of S$ 332, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Seattle to San Francisco?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to San Francisco, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below average price on the flight from Seattle to San Francisco, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low season

January

High season

April
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly (1% more expensive on average)

When to book flights from Seattle to San Francisco

Are your dates flexible? Find out the best times to travel from Seattle to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Flights from Seattle to San Francisco: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from Seattle to San Francisco 
RobertFlew with United AirlinesSEA-SFOMar 2025
If you’re picking up a rental car it’s not very clear that you have to take the train. Signage can be improved at SFO.
JulieFlew with Alaska AirlinesSEA-SFOAug 2024
Please make sure you at least change your clothes if you are flying right after a sporting event where you participated. Don’t be stinky.

FAQs for booking flights from Seattle to San Francisco

  • What facilities are available for business travelers at San Francisco International Airport?

    While there is no designated business center at San Francisco International Airport, there are plenty of workstations located throughout its terminals. There are also Power Bars in the Terminal 2 Food Court where travelers can plug in their laptops and continue their work while on the go.

  • Can I fly from Seattle to San Francisco non-stop?

    Due to their close proximity, many airlines offer nonstop flights from Seattle to San Francisco. Some of the airlines offering such flights include Delta Air Lines, United Airlines, and Alaska Airlines. There are also one-stop flights available through airlines like jetBlue Airways, Alaska Airlines, and American Airlines, with layovers in cities such as Long Beach, Los Angeles, and Portland.

  • What is the quickest way from San Francisco International Airport to downtown San Francisco?

    Aside from renting or driving a personal vehicle, BART (Bay Area Rapid Transport) is the quickest way to get from San Francisco International Airport to the city. Terminal 3 hosts the airport’s BART station and is easily accessed via AirTrain from the airport’s other terminals.

  • Should I fly to San Francisco International Airport, Oakland International Airport, or San José International Airport?

    Both San Francisco International Airport and Oakland International Airport are connected to BART, making them ideal for travelers who plan to take public transportation after their flights from Seattle to San Francisco. The main difference between the two is that San Francisco is on the west side of the bay while Oakland is on the east. San José International Airport, on the other hand, is not connected via BART, but there are other public transport options available. However, the main reason to fly into San José is if your final destination is outside of the Bay Area, as the airport is located a bit further outside the Bay Area’s urban sprawl.

  • Which airlines offer Wi-Fi service onboard planes from Seattle to San Francisco?

    Alaska Airlines, Hawaiian Airlines, and Delta offer inflight Wi-Fi service on the Seattle to San Francisco flight route.

  • Which aircraft models fly most regularly from Seattle to San Francisco?

    The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the Seattle to San Francisco flight route.

  • Which airline alliances offer flights from Seattle to San Francisco?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Seattle and San Francisco, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Seattle to San Francisco?

    There are direct flights from Seattle to San Francisco on a daily basis.

  • How does KAYAK find such low prices on flights from Seattle to San Francisco?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to San Francisco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to San Francisco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to San Francisco?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to San Francisco with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to San Francisco?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Seattle to San Francisco

  • Looking for a cheap flight? 25% of our users found flights on this route for S$ 332 or less one-way.
  • Looking to take public transport to Seattle-Tacoma International Airport so you can avoid the hassle of renting a car? Link Light Rail services connect Seattle-Tacoma International Airport directly to downtown Seattle and even to the University of Washington. The airport’s Link station is located outside the airport on the fourth floor of the adjacent parking garage.
  • Want to give the kids the chance to burn off a bit of excess energy before the flight? Stop by Seattle-Tacoma International Airport’s Playroom, located by the Seattle Tap Room in the Central Terminal by the A gates. At San Francisco International Airport there are three children’s play areas to choose from: two in Terminal 3 and one in Terminal 2.
  • Fortunately for travelers wanting to grab a bite to eat before they board their flight out of Seattle-Tacoma International Airport, there are plenty of restaurant options available - even for those with dietary restrictions. For vegetarians and vegans there is Floret, while for those who prefer meat on the menu, there is Rel’Lish Burger Lounge.
  • The Aviation Museum in San Francisco International Airport is a great family-friendly activity for those who are looking for a diversion during their time at the airport. The museum includes a library and is open from 10:30 a.m. to 4:30 p.m.
  • To reach San Francisco International Airport’s Rental Car Center, simply hop on the AirTrain Blue Line at any one of the airport’s terminals. The AirTrain runs 24 hours a day and also connects the terminals to all of the airport’s parking garages and the BART station.
See more tips

Prefer to fly direct from Seattle/Tacoma Intl to San Francisco?

Find which airlines fly direct from Seattle/Tacoma Intl Airport to San Francisco Airport, which days they fly and book direct flights.

Direct departures

Seattle/Tacoma Intl to San Francisco

Monday

ANA, Aeromexico, Air France, +30 more

ANA, Aeromexico, +31 more

Tuesday

ANA, Aeromexico, Air France, +30 more

ANA, Aeromexico, +31 more

Wednesday

ANA, Aeromexico, Air China, +29 more

ANA, Aeromexico, +30 more

Thursday

ANA, Aeromexico, Air France, +32 more

ANA, Aeromexico, +33 more

Friday

ANA, Aeromexico, Air France, +27 more

ANA, Aeromexico, +28 more

Saturday

ANA, Aeromexico, Air China, +32 more

ANA, Aeromexico, +33 more

Sunday

ANA, Aeromexico, Air France, +30 more

ANA, Aeromexico, +31 more

See more direct flights

Direct returns

San Francisco to Seattle/Tacoma Intl

Monday

ANA, Aeromexico, Air France, +28 more

ANA, Aeromexico, +29 more

Tuesday

ANA, Aeromexico, Air France, +29 more

ANA, Aeromexico, +30 more

Wednesday

ANA, Aeromexico, Air China, +28 more

ANA, Aeromexico, +29 more

Thursday

ANA, Aeromexico, Air France, +31 more

ANA, Aeromexico, +32 more

Friday

ANA, Aeromexico, Air France, +27 more

ANA, Aeromexico, +28 more

Saturday

ANA, Aeromexico, Air China, +30 more

ANA, Aeromexico, +31 more

Sunday

ANA, Aeromexico, Air France, +29 more

ANA, Aeromexico, +30 more

See more direct flights
See more direct flights

Everything you need to know for your flight from Seattle to San Francisco

Information on your arrival and departure airports

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