SEA - SFO

$108 Find Cheap Flights from Seattle to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to San Francisco departing on 24/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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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.
Choose your dates
Alaska Airlines Logo
15:36 - 17:49SEA-SFO
2h 13mdirect
Alaska Airlines Logo
20:49 - 22:59SFO-SEA
2h 10mdirect
$205Alaska Airlines
Find Deal
Wed, 14 May - Wed, 14 May
Delta Logo
21:50 - 00:04SEA-SFO
2h 14mdirect
Delta Logo
10:00 - 12:18SFO-SEA
2h 18mdirect
$214Delta
Find Deal
Sat, 17 May - Tue, 20 May
Alaska Airlines Logo
10:55 - 18:26SEA-SFO
7h 31m1 stop
Alaska Airlines Logo
20:49 - 22:59SFO-SEA
2h 10mdirect
$221Alaska Airlines
Find Deal
Wed, 14 May - Wed, 14 May
Delta Logo
10:25 - 12:50SEA-SFO
2h 25mdirect
Delta Logo
06:10 - 08:30SFO-SEA
2h 20mdirect
$230Delta
Find Deal
Sat, 17 May - Sun, 18 May
Hawaiian Airlines Logo
14:48 - 21:37SEA-SFO
6h 49m1 stop
Hawaiian Airlines Logo
20:49 - 23:02SFO-SEA
2h 13mdirect
$232Hawaiian Airlines
Find Deal
Sat, 7 Jun - Sat, 14 Jun
Hawaiian Airlines Logo
08:05 - 10:24SEA-SFO
2h 19mdirect
Hawaiian Airlines Logo
20:49 - 23:02SFO-SEA
2h 13mdirect
$252Hawaiian Airlines
Find Deal
Sat, 21 Jun - Sat, 21 Jun
Southwest Logo
18:05 - 23:10SEA-SFO
5h 05m1 stop
Southwest Logo
05:15 - 14:20SFO-SEA
9h 05m2 stops
$274Southwest
Find Deal
Tue, 17 Jun - Mon, 30 Jun
Southwest Logo
18:15 - 23:25SEA-SFO
5h 10m1 stop
Southwest Logo
17:55 - 01:15SFO-SEA
7h 20m1 stop
$286Southwest
Find Deal
Thu, 19 Jun - Tue, 24 Jun
United Airlines Logo
12:45 - 15:02SEA-SFO
2h 17mdirect
United Airlines Logo
22:36 - 00:59SFO-SEA
2h 23mdirect
$335United Airlines
Find Deal
Wed, 14 May - Fri, 16 May
United Airlines Logo
19:34 - 21:50SEA-SFO
2h 16mdirect
United Airlines Logo
22:55 - 00:59SFO-SEA
2h 04mdirect
$473United Airlines
Find Deal
Thu, 26 Jun - Sun, 29 Jun

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.
When flying from Seattle to San Francisco, you should consider leaving on a Tuesday and avoid Sundays if you are looking for the best rates. For your return to Seattle, you’ll find the best rates on Thursdays and the most expensive ones on Tuesdays.

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 $321 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $432 and $426 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 $311, 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

Cheapest flight

$108
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly (1% more expensive on average)
Flight from Seattle to San Francisco

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.

  • What is the cheapest flight from Seattle to San Francisco?

    In the last 3 days, the lowest price for a flight from Seattle to San Francisco was $69 for a one-way ticket and $131 for a return.

  • Which airports will I be using when flying from Seattle to San Francisco?

    On your way to San Francisco, you’ll fly out from Seattle/Tacoma Intl. You’ll be landing at San Francisco.

  • 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 $169 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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