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Cheap flights from Seattle to San Francisco from $102

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to San Francisco departing on 25/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Cheap return flights

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United Airlines Logo
07:05 - 09:29SEA-SFO
2h 24mdirect
United Airlines Logo
22:48 - 00:59SFO-SEA
2h 11mdirect
$179United Airlines
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Mon, 22 Dec - Wed, 31 Dec
Delta Logo
07:15 - 09:35SEA-SFO
2h 20mdirect
Delta Logo
10:35 - 12:58SFO-SEA
2h 23mdirect
$180Delta
Find Deal
Thu, 8 Jan - Sun, 11 Jan
United Airlines Logo
12:35 - 14:53SEA-SFO
2h 18mdirect
United Airlines Logo
22:48 - 00:59SFO-SEA
2h 11mdirect
$187United Airlines
Find Deal
Wed, 24 Dec - Thu, 1 Jan
United Airlines Logo
17:54 - 20:11SEA-SFO
2h 17mdirect
United Airlines Logo
06:00 - 08:23SFO-SEA
2h 23mdirect
$191United Airlines
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Thu, 25 Dec - Thu, 1 Jan
Delta Logo
05:25 - 12:23SEA-SFO
6h 58m1 stop
Delta Logo
14:39 - 16:58SFO-SEA
2h 19mdirect
$194Delta
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Thu, 8 Jan - Mon, 12 Jan
Delta Logo
05:25 - 12:23SEA-SFO
6h 58m1 stop
Delta Logo
10:35 - 12:58SFO-SEA
2h 23mdirect
$196Delta
Find Deal
Thu, 8 Jan - Sun, 11 Jan
United Airlines Logo
17:54 - 20:11SEA-SFO
2h 17mdirect
United Airlines Logo
22:48 - 00:59SFO-SEA
2h 11mdirect
$200United Airlines
Find Deal
Thu, 25 Dec - Tue, 30 Dec
Alaska Airlines Logo
11:40 - 14:02SEA-SFO
2h 22mdirect
Alaska Airlines Logo
20:47 - 23:07SFO-SEA
2h 20mdirect
$202Alaska Airlines
Find Deal
Wed, 25 Feb - Sun, 1 Mar
Alaska Airlines Logo
08:25 - 12:23SEA-SFO
3h 58m1 stop
Alaska Airlines Logo
14:30 - 16:47SFO-SEA
2h 17mdirect
$208Alaska Airlines
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Sun, 8 Feb - Sun, 8 Feb
Delta Logo
08:30 - 16:09SEA-SFO
7h 39m1 stop
Delta Logo
06:00 - 12:33SFO-SEA
6h 33m1 stop
$210Delta
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Fri, 27 Feb - Mon, 2 Mar

Delta flights from Seattle to San Francisco

Our best Delta deals on Seattle to San Francisco flight tickets
Delta
22 Dec
SEA22:15Seattle/Tacoma Intl
2h 17m
SFO00:32San Francisco
6 Jan
SFO18:30San Francisco
2h 16m
SEA20:46Seattle/Tacoma Intl
$179
Find similar
Delta
8 Jan
SEA07:15Seattle/Tacoma Intl
2h 20m
SFO09:35San Francisco
11 Jan
SFO10:35San Francisco
2h 23m
SEA12:58Seattle/Tacoma Intl
$180
Find similar
Delta
8 Jan
SEA07:15Seattle/Tacoma Intl
2h 20m
SFO09:35San Francisco
8 Jan
SFO16:03San Francisco
6h 21m
1 stop
SEA22:24Seattle/Tacoma Intl
$194
Find similar

United Airlines flights from Seattle to San Francisco

Our best United Airlines deals on Seattle to San Francisco flight tickets
United Airlines
24 Dec
SEA12:35Seattle/Tacoma Intl
2h 18m
SFO14:53San Francisco
1 Jan
SFO22:48San Francisco
2h 11m
SEA00:59Seattle/Tacoma Intl
$187
Find similar
United Airlines
25 Dec
SEA17:54Seattle/Tacoma Intl
2h 17m
SFO20:11San Francisco
1 Jan
SFO06:00San Francisco
2h 23m
SEA08:23Seattle/Tacoma Intl
$191
Find similar
United Airlines
25 Dec
SEA17:54Seattle/Tacoma Intl
2h 17m
SFO20:11San Francisco
30 Dec
SFO22:48San Francisco
2h 11m
SEA00:59Seattle/Tacoma Intl
$200
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Seattle to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 78,305 searches. Data last updated 29 November 2025.
Use the filters below to find and compare flights from Seattle to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Mon 22/12

07:05-09:29

Nonstop2h 24m

San Francisco

Wed 31/12

22:48-00:59

Nonstop2h 11m

$179

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Thu 8/1

07:15-09:35

Nonstop2h 20m

San Francisco

Sun 11/1

10:35-12:58

Nonstop2h 23m

$180

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Wed 24/12

12:35-14:53

Nonstop2h 18m

San Francisco

Thu 1/1

22:48-00:59

Nonstop2h 11m

$187

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Thu 25/12

17:54-20:11

Nonstop2h 17m

San Francisco

Thu 1/1

06:00-08:23

Nonstop2h 23m

$191

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Thu 8/1

05:25-12:23

1 stop6h 58m

San Francisco

Mon 12/1

14:39-16:58

Nonstop2h 19m

$194

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Thu 8/1

05:25-12:23

1 stop6h 58m

San Francisco

Sun 11/1

10:35-12:58

Nonstop2h 23m

$196

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Thu 25/12

17:54-20:11

Nonstop2h 17m

San Francisco

Tue 30/12

22:48-00:59

Nonstop2h 11m

$200

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Wed 25/2

11:40-14:02

Nonstop2h 22m

San Francisco

Sun 1/3

20:47-23:07

Nonstop2h 20m

$202

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sun 8/2

08:25-12:23

1 stop3h 58m

San Francisco

Sun 8/2

14:30-16:47

Nonstop2h 17m

$208

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Fri 27/2

08:30-16:09

1 stop7h 39m

San Francisco

Mon 2/3

06:00-12:33

1 stop6h 33m

$210

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 January, then book flights to San Francisco from Seattle during February instead. Flights to San Francisco in February, while not as cheap as those in January, still average around $330.

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

According to our data, Wednesday is the cheapest day to fly to San Francisco from Seattle. The lowest ticket price found for a Wednesday departure recently was $1,256. 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 Saturday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to San Francisco for around $2,222.

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 $293. 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 $1,916 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 $361 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 $252 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 November 2025, prices for Seattle to San Francisco flights are approximately 16% more expensive 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

$332

Fastest flight time

2h 24m

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 $332. The best return flight deal from Seattle to San Francisco found on momondo in the last 72 hours is $2,079.
The fastest flight from Seattle to San Francisco takes 2h 24m
Direct flights go from Seattle to San Francisco every day.
There is 1 airport near San Francisco: San Francisco (SFO)
Search flight deals

  • 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
Redwood City
Sausalito
Carmel-by-the-Sea
Watsonville
Emeryville
San Mateo
Pacifica
Salinas
Burlingame
Pebble Beach
Pacific Grove
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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