Cheap flights from Seattle to San Francisco from $54

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 9/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Hawaiian Airlines Logo
6:05 pm - 8:19 pmSEA-SFO
2h 14mnonstop
Hawaiian Airlines Logo
11:48 am - 5:53 pmSFO-SEA
6h 05m1 stop
$105Hawaiian Airlines
Find Deal
Sat, Sep 13 - Wed, Sep 17
Hawaiian Airlines Logo
7:50 am - 12:30 pmSEA-SFO
4h 40m1 stop
Hawaiian Airlines Logo
11:48 am - 4:44 pmSFO-SEA
4h 56m1 stop
$108Hawaiian Airlines
Find Deal
Tue, Sep 9 - Sat, Sep 13
Hawaiian Airlines Logo
3:55 pm - 6:09 pmSEA-SFO
2h 14mnonstop
Hawaiian Airlines Logo
10:08 am - 12:27 pmSFO-SEA
2h 19mnonstop
$111Hawaiian Airlines
Find Deal
Sat, Sep 13 - Wed, Sep 17
Hawaiian Airlines Logo
6:05 pm - 8:19 pmSEA-SFO
2h 14mnonstop
Hawaiian Airlines Logo
8:00 am - 2:26 pmSFO-SEA
6h 26m1 stop
$112Hawaiian Airlines
Find Deal
Sat, Sep 13 - Wed, Sep 17
Delta Logo
10:25 am - 12:51 pmSEA-SFO
2h 26mnonstop
Delta Logo
1:45 pm - 4:00 pmSFO-SEA
2h 15mnonstop
$137Delta
Find Deal
Wed, Aug 20 - Tue, Aug 26
Alaska Airlines Logo
2:36 pm - 6:53 pmSEA-SFO
4h 17m1 stop
Alaska Airlines Logo
6:00 am - 8:04 amSFO-SEA
2h 04mnonstop
$140Alaska Airlines
Find Deal
Sat, Aug 16 - Sun, Aug 17
United Airlines Logo
5:10 am - 7:22 amSEA-SFO
2h 12mnonstop
United Airlines Logo
10:55 pm - 12:59 amSFO-SEA
2h 04mnonstop
$147United Airlines
Find Deal
Sat, Aug 16 - Sun, Aug 17
Delta Logo
9:31 pm - 11:43 pmSEA-SFO
2h 12mnonstop
Delta Logo
5:55 am - 8:05 amSFO-SEA
2h 10mnonstop
$148Delta
Find Deal
Sat, Aug 16 - Sun, Aug 17
Alaska Airlines Logo
7:00 am - 12:24 pmSEA-SFO
5h 24m1 stop
Alaska Airlines Logo
2:31 pm - 6:20 pmSFO-SEA
3h 49m1 stop
$151Alaska Airlines
Find Deal
Wed, Aug 13 - Wed, Aug 13
American Airlines Logo
2:32 pm - 8:51 pmSEA-SFO
6h 19m1 stop
American Airlines Logo
7:00 am - 2:01 pmSFO-SEA
7h 01m1 stop
$159American Airlines
Find Deal
Wed, Aug 20 - Wed, Aug 27

Hawaiian Airlines flights from Seattle to San Francisco

Our best Hawaiian Airlines deals on Seattle to San Francisco flight tickets
Hawaiian Airlines
Sep 13
SEA6:05 pmSeattle/Tacoma Intl
2h 14m
SFO8:19 pmSan Francisco
Sep 17
SFO11:48 amSan Francisco
6h 05m
1 stop
SEA5:53 pmSeattle/Tacoma Intl
Hawaiian Airlines
Sep 9
SEA7:50 amSeattle/Tacoma Intl
4h 40m
1 stop
SFO12:30 pmSan Francisco
Sep 13
SFO11:48 amSan Francisco
4h 56m
1 stop
SEA4:44 pmSeattle/Tacoma Intl
Hawaiian Airlines
Sep 13
SEA3:55 pmSeattle/Tacoma Intl
2h 14m
SFO6:09 pmSan Francisco
Sep 17
SFO10:08 amSan Francisco
2h 19m
SEA12:27 pmSeattle/Tacoma Intl

Delta flights from Seattle to San Francisco

Our best Delta deals on Seattle to San Francisco flight tickets
Delta
Aug 20
SEA10:25 amSeattle/Tacoma Intl
2h 26m
SFO12:51 pmSan Francisco
Aug 26
SFO1:45 pmSan Francisco
2h 15m
SEA4:00 pmSeattle/Tacoma Intl
Delta
Aug 16
SEA9:31 pmSeattle/Tacoma Intl
2h 12m
SFO11:43 pmSan Francisco
Aug 17
SFO5:55 amSan Francisco
2h 10m
SEA8:05 amSeattle/Tacoma Intl
Delta
Aug 23
SEA5:45 pmSeattle/Tacoma Intl
2h 21m
SFO8:06 pmSan Francisco
Aug 24
SFO5:55 amSan Francisco
2h 10m
SEA8:05 amSeattle/Tacoma Intl

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 to San Francisco during the month of September, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $206.

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

The cheapest day to depart from Seattle to San Francisco is on a Friday when prices can be found for as low as $301. The most expensive day to fly to San Francisco is Wednesday, with ticket prices averaging around $546.

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

Our data shows that the cheapest Seattle to San Francisco flights are usually those with departure times at noon. Our users have found flights to San Francisco at noon for as low as $291. Flights in the afternoon are often more expensive with an average ticket price of $503.

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 $232 when searching weeks out. 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 $162 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 July 2025, prices for Seattle to San Francisco flights are approximately 5% 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 round-trip 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

$54

Fastest flight time

2h 09m

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 $54. The best round-trip flight deal from Seattle to San Francisco found on momondo in the last 72 hours is $105.
The fastest flight from Seattle to San Francisco takes 2h 09m
Direct flights go from Seattle to San Francisco every day.
There is 1 airport near San Francisco: San Francisco (SFO)

  • How far is Seattle/Tacoma Intl to San Francisco by plane?

    There are 678.2 mi between Seattle/Tacoma Intl and San Francisco. By plane, this route typically takes 2h 10m.

  • 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 are updated daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to San Francisco Airport?

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 license 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?

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


Best airlines flying from Seattle to San Francisco

Compare and see reviews for airlines that fly from Seattle to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $100Free CancellationRating
5.9
3,244 reviews
Search Frontier flights
DeltaPriceFrom $104Free CancellationRating
8.0
7,967 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $112Free CancellationRating
7.8
2,595 reviews
Search Hawaiian Airlines flights
United AirlinesPriceFrom $120Free CancellationRating
7.4
8,880 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $130Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $226Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
  • Delta Flights From Seattle to San Francisco

    Delta is one of the most popular airlines flying from Seattle to San Francisco, operating 11 flights/week on average for this route. A good Delta flight deal for Seattle to San Francisco starts from $104 round-trip, up to an average price of $207. Our users have rated Delta at 8.0/10.

  • Alaska Airlines Flights From Seattle to San Francisco

    The best Alaska Airlines deal for Seattle to San Francisco flight tickets found on momondo in the last 72 hours was $130, round-trip. It should be noted that an average Alaska Airlines flight deal for this route in this time was higher, at $240 round-trip. Alaska Airlines operates 29 flights out of Seattle into San Francisco in an average week, so prices vary by time and availability. 10,000 Alaska Airlines reviews by users on momondo have scored the airline at 8.0/10.


Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Modesto
Calistoga
Hayward
Sonoma
Bodega Bay
Roseville
Santa Clara
Big Sur
Daly City
Berkeley
Walnut Creek
Fremont
South San Francisco
Redwood City
Half Moon Bay
Sunnyvale
Vallejo
Pacific Grove

Why use momondo?

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

It is quick and easy to find Seattle to San Francisco flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Francisco that suits you.

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

momondo does allow users to show only those flights to San Francisco from Seattle which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to San Francisco from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to San Francisco, momondo offers a useful price alert feature which will track prices for flights to San Francisco from Seattle and alert you when they change.


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1 adult
Tue 7/29
Tue 8/5

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