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Cheap flights from Seattle to San Francisco from $74

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United Airlines flights from Seattle to San Francisco

Our best United Airlines deals on Seattle to San Francisco flight tickets
United Airlines
27 Aug
SEA19:34Seattle/Tacoma Intl
2h 14m
SFO21:48San Francisco
6 Sept
SFO20:45San Francisco
2h 14m
SEA22:59Seattle/Tacoma Intl
$147
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United Airlines
4 Sept
SEA13:05Seattle/Tacoma Intl
2h 15m
SFO15:20San Francisco
6 Sept
SFO16:35San Francisco
2h 14m
SEA18:49Seattle/Tacoma Intl
$156
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United Airlines
28 Aug
SEA15:19Seattle/Tacoma Intl
2h 16m
SFO17:35San Francisco
1 Sept
SFO06:00San Francisco
2h 19m
SEA08:19Seattle/Tacoma Intl
$165
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Southwest flights from Seattle to San Francisco

Our best Southwest deals on Seattle to San Francisco flight tickets
Southwest
17 Sept
SEA13:40Seattle/Tacoma Intl
7h 45m
1 stop
SFO21:25San Francisco
23 Sept
SFO17:25San Francisco
5h 25m
1 stop
SEA22:50Seattle/Tacoma Intl
$176
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Southwest
3 Sept
SEA16:10Seattle/Tacoma Intl
5h 15m
1 stop
SFO21:25San Francisco
10 Sept
SFO07:00San Francisco
7h 10m
2 stops
SEA14:10Seattle/Tacoma Intl
$186
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Southwest
16 Sept
SEA10:10Seattle/Tacoma Intl
9h 40m
2 stops
SFO19:50San Francisco
23 Sept
SFO07:00San Francisco
7h 10m
2 stops
SEA14:10Seattle/Tacoma Intl
$193
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See travel insights to San Francisco from

How to get the cheapest flight ticket from Seattle to San Francisco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel during the month of September, then book flights to San Francisco from Seattle during January instead. Flights to San Francisco in January, while not as cheap as those in September, still average around $317.

What is the cheapest day to depart on your flight to San Francisco?

According to our data, Saturday is the cheapest day to fly to San Francisco from Seattle. The lowest ticket price found for a Saturday departure recently was $1,559. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to San Francisco for around $2,297.

What is the cheapest time of day to depart on your flight to San Francisco?

According to our data, the cheapest time of day to fly to San Francisco is in the morning. momondo users have found flights departing from Seattle to San Francisco in the morning for as low as $257. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $1,914 on average. Flights to San Francisco from Seattle in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Seattle/Tacoma Intl to San Francisco flight route?

Fly from Seattle/Tacoma Intl to San Francisco for the best Seattle/Tacoma Intl - San Francisco flight prices

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

You are more likely to see cheaper flights to San Francisco from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $359 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Seattle for as low as $251 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to San Francisco flights?

There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Seattle to San Francisco flight prices changed over time?

As of August 2025, prices for Seattle to San Francisco flights are approximately 3% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to San Francisco

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to San Francisco according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Seattle to San Francisco (SEA to SFO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to San Francisco

Best price found

$74

Fastest flight time

2h 12m

Direct flights

Every day

Airports in San Francisco

1 airport
The best one-way flight to San Francisco from Seattle in the past 72 hours is $74. The best return flight deal from Seattle to San Francisco found on momondo in the last 72 hours is $147.
The fastest flight from Seattle to San Francisco takes 2h 12m
Direct flights go from Seattle to San Francisco every day.
There is 1 airport near San Francisco: San Francisco (SFO)
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  • How far is Seattle/Tacoma Intl to San Francisco by plane?

    Seattle/Tacoma Intl and San Francisco are 1091.5 km apart from one another. A reasonable flight in good conditions will take 2h 12m.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to San Francisco Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to San Francisco Airport refresh daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to San Francisco Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to San Francisco Airport.

  • What documentation or ID do you need to fly to San Francisco Airport?

    The travel and health documents you'll need for your trip to San Francisco Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at San Francisco Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to San Francisco?

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Walnut Creek
Carmel-by-the-Sea
Redwood City
Sausalito
Watsonville
Emeryville
San Mateo
Pacifica
Mountain View
Santa Cruz
Burlingame
Salinas
Pacific Grove
Pebble Beach
San Lorenzo

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to San Francisco?

Finding the right flight to San Francisco from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Francisco quick and easy, saving you time and money.

Can I find flights from Seattle to San Francisco with flexible booking policies on momondo?

Yes. All flights to San Francisco from Seattle on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Seattle to San Francisco?

momondo helps you find the best flight between Seattle and San Francisco by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to San Francisco right now. Can momondo alert me if prices change?

Price alerts on flights to San Francisco from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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