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Cheap flights from Seattle to San Francisco from $45

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 1/27. 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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Find the cheapest flights from Seattle to San Francisco

Cheap round-trip flights

These are some of the best round-trip flight deals from Seattle to San Francisco that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Seattle to San Francisco.

Cheap last minute flights

Planning a quick getaway from Seattle to San Francisco? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to San Francisco, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Seattle to San Francisco

Find recent round-trip train or bus tickets from Seattle to San Francisco.

All round-trip flight deals to San Francisco

The cheapest plane tickets to San Francisco found on KAYAK recently.
3:15 pm - 12:09 amSEA-SFO
8h 54m1 stop
9:26 am - 6:15 pmSFO-SEA
8h 49m1 stop
$97Frontier
Find Deal
Thu, Feb 6 - Mon, Feb 10
4:35 pm - 7:35 amSEA-SFO
15h 00m1 stop
2:54 pm - 8:50 amSFO-SEA
17h 56m1 stop
$98Frontier
Find Deal
Thu, Jan 23 - Sun, Jan 26
7:59 pm - 10:12 pmSEA-SFO
2h 13mnonstop
2:43 pm - 4:59 pmSFO-SEA
2h 16mnonstop
$105Alaska Airlines
Find Deal
Mon, Feb 3 - Wed, Feb 5
1:23 pm - 3:35 pmSEA-SFO
2h 12mnonstop
7:00 am - 9:15 amSFO-SEA
2h 15mnonstop
$108Alaska Airlines
Find Deal
Thu, Feb 6 - Sun, Feb 9
1:35 pm - 3:47 pmSEA-SFO
2h 12mnonstop
4:37 pm - 7:00 pmSFO-SEA
2h 23mnonstop
$115Delta
Find Deal
Tue, Jan 21 - Fri, Jan 24
9:55 am - 12:19 pmSEA-SFO
2h 24mnonstop
8:40 pm - 11:05 pmSFO-SEA
2h 25mnonstop
$117Delta
Find Deal
Thu, Jan 23 - Sun, Jan 26
6:10 am - 12:30 pmSEA-SFO
6h 20m1 stop
4:00 pm - 10:43 pmSFO-SEA
6h 43m1 stop
$158American Airlines
Find Deal
Tue, Jan 28 - Wed, Jan 29
6:00 am - 12:40 pmSEA-SFO
6h 40m1 stop
4:22 pm - 11:24 pmSFO-SEA
7h 02m1 stop
$165American Airlines
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Wed, Feb 19 - Tue, Feb 25
3:25 pm - 5:44 pmSEA-SFO
2h 19mnonstop
7:00 pm - 9:20 pmSFO-SEA
2h 20mnonstop
$187United Airlines
Find Deal
Thu, Jan 23 - Sun, Jan 26
9:20 am - 11:39 amSEA-SFO
2h 19mnonstop
9:00 am - 11:20 amSFO-SEA
2h 20mnonstop
$189United Airlines
Find Deal
Thu, Jan 23 - Sun, Jan 26
3:15 pm - 12:09 amSEA-SFO
8h 54m1 stop
$45Frontier
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Mon, Jan 27
8:03 am - 10:24 amSEA-SFO
2h 21mnonstop
$49Alaska Airlines
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Sun, Feb 2
3:15 pm - 12:09 amSEA-SFO
8h 54m1 stop
$50Frontier
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Mon, Jan 27
9:20 am - 11:39 amSEA-SFO
2h 19mnonstop
$59United Airlines
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Tue, Jan 28
6:10 am - 12:30 pmSEA-SFO
6h 20m1 stop
$79American Airlines
Find Deal
Tue, Jan 28
6:10 am - 12:30 pmSEA-SFO
6h 20m1 stop
$80American Airlines
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Tue, Jan 28
7:00 am - 9:21 amSEA-SFO
2h 21mnonstop
$84United Airlines
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Fri, Mar 28
6:10 am - 8:31 amSEA-SFO
2h 21mnonstop
$89Delta
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Tue, Jan 14
8:10 pm - 10:23 pmSEA-SFO
2h 13mnonstop
$119Delta
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Fri, Mar 28
9:21 pm - 8:02 pmSEA-SFO
22h 41m2 stops
$279Spirit Airlines
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Thu, Jan 2
9:36 pm - 7:59 amSEA-SFO
10h 23m1 stop
10:29 pm - 8:57 amSFO-SEA
10h 28m1 stop
$257Frontier
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Thu, Jan 2 - Thu, Jan 9
8:26 pm - 10:17 pmSEA-SFO
25h 51m1 stop
3:05 pm - 8:57 amSFO-SEA
17h 52m1 stop
$264Frontier
Find Deal
Thu, Jan 2 - Thu, Jan 9
9:36 pm - 7:59 amSEA-SFO
10h 23m1 stop
10:29 pm - 8:57 amSFO-SEA
10h 28m1 stop
$287Frontier
Find Deal
Tue, Dec 31 - Thu, Jan 9
3:44 pm - 6:00 pmSEA-SFO
2h 16mnonstop
11:00 am - 4:00 pmSFO-SEA
5h 00m1 stop
$464Alaska Airlines
Find Deal
Mon, Dec 30 - Tue, Jan 7
8:27 pm - 10:44 pmSEA-SFO
2h 17mnonstop
10:00 am - 12:18 pmSFO-SEA
2h 18mnonstop
$474Alaska Airlines
Find Deal
Thu, Jan 2 - Thu, Jan 9
7:05 pm - 12:16 amSEA-SFO
5h 11m1 stop
1:30 pm - 3:54 pmSFO-SEA
2h 24mnonstop
$484Delta
Find Deal
Mon, Dec 30 - Tue, Jan 7
5:30 am - 12:36 pmSEA-SFO
7h 06m1 stop
3:40 pm - 10:21 pmSFO-SEA
6h 41m1 stop
$493Delta
Find Deal
Mon, Dec 30 - Tue, Jan 7
3:11 pm - 5:34 pmSEA-SFO
2h 23mnonstop
9:00 am - 11:20 amSFO-SEA
2h 20mnonstop
$681United Airlines
Find Deal
Tue, Dec 31 - Tue, Jan 7
6:10 am - 12:31 pmSEA-SFO
6h 21m1 stop
11:26 am - 6:50 pmSFO-SEA
7h 24m1 stop
$698American Airlines
Find Deal
Thu, Jan 2 - Thu, Jan 9
5:00 am - 7:19 amSEA-SFO
2h 19mnonstop
9:14 am - 11:34 amSFO-SEA
2h 20mnonstop
$719United Airlines
Find Deal
Tue, Dec 31 - Sun, Jan 5
7:59 pm - 10:12 pmSEA-SFO
2h 13mnonstop
2:43 pm - 4:59 pmSFO-SEA
2h 16mnonstop
$105Alaska Airlines
Find Deal
Mon, Feb 3 - Wed, Feb 5
11:30 am - 1:47 pmSEA-SFO
2h 17mnonstop
8:20 am - 10:35 amSFO-SEA
2h 15mnonstop
$108Alaska Airlines
Find Deal
Tue, Jan 28 - Fri, Jan 31
8:03 am - 10:24 amSEA-SFO
2h 21mnonstop
10:00 am - 12:18 pmSFO-SEA
2h 18mnonstop
$109Alaska Airlines
Find Deal
Thu, Jan 23 - Sun, Jan 26
1:23 pm - 3:35 pmSEA-SFO
2h 12mnonstop
7:00 am - 9:15 amSFO-SEA
2h 15mnonstop
$110Alaska Airlines
Find Deal
Thu, Jan 23 - Sun, Jan 26
6:10 am - 8:31 amSEA-SFO
2h 21mnonstop
8:40 pm - 11:08 pmSFO-SEA
2h 28mnonstop
$113Delta
Find Deal
Sat, Feb 1 - Sat, Feb 8
1:35 pm - 3:47 pmSEA-SFO
2h 12mnonstop
4:37 pm - 7:00 pmSFO-SEA
2h 23mnonstop
$115Delta
Find Deal
Tue, Jan 21 - Fri, Jan 24
7:00 am - 9:20 amSEA-SFO
2h 20mnonstop
4:48 pm - 7:08 pmSFO-SEA
2h 20mnonstop
$187United Airlines
Find Deal
Thu, Jan 23 - Sun, Jan 26
12:50 pm - 3:09 pmSEA-SFO
2h 19mnonstop
7:00 pm - 9:20 pmSFO-SEA
2h 20mnonstop
$188United Airlines
Find Deal
Thu, Jan 23 - Sun, Jan 26
5:55 pm - 8:07 pmSEA-SFO
2h 12mnonstop
5:32 pm - 7:47 pmSFO-SEA
2h 15mnonstop
$223American Airlines
Find Deal
Thu, Jan 23 - Sun, Jan 26
6:59 pm - 9:12 pmSEA-SFO
2h 13mnonstop
10:00 am - 12:18 pmSFO-SEA
2h 18mnonstop
$224American Airlines
Find Deal
Thu, Jan 23 - Sun, Jan 26

Frontier flights from Seattle to San Francisco

Our best Frontier deals on Seattle to San Francisco flight tickets
Frontier
Feb 6
SEA3:15 pmSeattle/Tacoma Intl
8h 54m
1 stop
SFO12:09 amSan Francisco
Feb 10
SFO9:26 amSan Francisco
8h 49m
1 stop
SEA6:15 pmSeattle/Tacoma Intl
Frontier
Jan 23
SEA4:35 pmSeattle/Tacoma Intl
15h 00m
1 stop
SFO7:35 amSan Francisco
Jan 26
SFO2:54 pmSan Francisco
17h 56m
1 stop
SEA8:50 amSeattle/Tacoma Intl
Frontier
Jan 23
SEA12:10 pmSeattle/Tacoma Intl
5h 52m
1 stop
SFO6:02 pmSan Francisco
Jan 26
SFO10:54 amSan Francisco
21h 56m
1 stop
SEA8:50 amSeattle/Tacoma Intl

Alaska Airlines flights from Seattle to San Francisco

Our best Alaska Airlines deals on Seattle to San Francisco flight tickets
Alaska Airlines
Feb 3
SEA7:59 pmSeattle/Tacoma Intl
2h 13m
SFO10:12 pmSan Francisco
Feb 5
SFO2:43 pmSan Francisco
2h 16m
SEA4:59 pmSeattle/Tacoma Intl
Alaska Airlines
Feb 6
SEA1:23 pmSeattle/Tacoma Intl
2h 12m
SFO3:35 pmSan Francisco
Feb 9
SFO7:00 amSan Francisco
2h 15m
SEA9:15 amSeattle/Tacoma Intl
Alaska Airlines
Jan 23
SEA1:23 pmSeattle/Tacoma Intl
2h 12m
SFO3:35 pmSan Francisco
Jan 26
SFO7:00 amSan Francisco
2h 15m
SEA9:15 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 $208.

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 Saturday when prices can be found for as low as $225. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around $306.

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 in the evening. Our users have found flights to San Francisco in the evening for as low as $218. Flights in the afternoon are often more expensive with an average ticket price of $257.

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?

The ideal time to book your flight to San Francisco is 58 days in advance when prices tend to average $235. In the past 72 hours, momondo users found flights from Seattle to San Francisco for as low as $160.

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.

Can stopping save me money on Seattle to San Francisco flights?

You could potentially save up to 8% on your flight if you consider stops on a Seattle to San Francisco flight.

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

As of December 2024, prices for Seattle to San Francisco flights are approximately 1% 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 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

$45

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 $45. The best round-trip flight deal from Seattle to San Francisco found on momondo in the last 72 hours is $97.
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 09m.

  • 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 $102Free CancellationRating
6.0
3,459 reviews
Search Frontier flights
DeltaPriceFrom $108Free CancellationRating
8.0
8,556 reviews
Search Delta flights
Spirit AirlinesPriceFrom $109Free CancellationRating
6.3
8,104 reviews
Search Spirit Airlines flights
United AirlinesPriceFrom $130Free CancellationRating
7.4
9,003 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $132Free CancellationRating
8.0
9,575 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 16 flights/week on average for this route. A good Delta flight deal for Seattle to San Francisco starts from $108 round-trip, up to an average price of $204. 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 $132, round-trip. It should be noted that an average Alaska Airlines flight deal for this route in this time was higher, at $263 round-trip. Alaska Airlines operates 12 flights out of Seattle into San Francisco in an average week, so prices vary by time and availability. 9,582 Alaska Airlines reviews by users on momondo have scored the airline at 8.0/10.


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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