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Cheap flights from Seattle to San Francisco from $49

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 2/24. 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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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.
5:16 pm - 2:23 pmSEA-SFO
21h 07m1 stop
2:53 pm - 12:02 pmSFO-SEA
21h 09m1 stop
$96Frontier
Find Deal
Mon, Feb 10 - Wed, Feb 12
9:40 am - 7:16 amSEA-SFO
21h 36m1 stop
8:06 am - 1:12 pmSFO-SEA
5h 06m1 stop
$97Frontier
Find Deal
Mon, Feb 10 - Thu, Feb 13
7:59 pm - 10:12 pmSEA-SFO
2h 13mnonstop
10:00 am - 12:18 pmSFO-SEA
2h 18mnonstop
$105Alaska Airlines
Find Deal
Mon, Feb 10 - Wed, Feb 12
7:59 pm - 10:12 pmSEA-SFO
2h 13mnonstop
7:00 am - 9:15 amSFO-SEA
2h 15mnonstop
$106Alaska Airlines
Find Deal
Mon, Feb 3 - Wed, Feb 5
5:35 pm - 7:57 pmSEA-SFO
2h 22mnonstop
6:10 am - 8:35 amSFO-SEA
2h 25mnonstop
$117Delta
Find Deal
Thu, Jan 30 - Sun, Feb 2
3:24 pm - 5:42 pmSEA-SFO
2h 18mnonstop
10:35 pm - 12:55 amSFO-SEA
2h 20mnonstop
$135United Airlines
Find Deal
Thu, Feb 13 - Fri, Feb 14
6:10 am - 8:31 amSEA-SFO
2h 21mnonstop
6:10 am - 8:35 amSFO-SEA
2h 25mnonstop
$142Delta
Find Deal
Fri, Feb 14 - Mon, Feb 17
6:15 am - 12:20 pmSEA-SFO
6h 05m1 stop
1:35 pm - 3:54 pmSFO-SEA
2h 19mnonstop
$183United Airlines
Find Deal
Wed, Mar 19 - Thu, Mar 20
5:45 pm - 11:33 pmSEA-SFO
5h 48m1 stop
9:20 am - 11:34 amSFO-SEA
2h 14mnonstop
$233American Airlines
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Wed, Apr 16 - Thu, Apr 17
7:59 pm - 10:10 pmSEA-SFO
2h 11mnonstop
6:00 am - 8:19 amSFO-SEA
2h 19mnonstop
$238American Airlines
Find Deal
Thu, Jan 30 - Sun, Feb 2
11:23 am - 9:42 amSEA-SFO
22h 19m1 stop
$49Frontier
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Mon, Feb 24
3:15 pm - 12:09 amSEA-SFO
8h 54m1 stop
$50Frontier
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Thu, Feb 6
1:23 pm - 3:35 pmSEA-SFO
2h 12mnonstop
$52Alaska Airlines
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Thu, Feb 6
7:00 am - 9:12 amSEA-SFO
2h 12mnonstop
$54Alaska Airlines
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Sat, Mar 1
6:15 am - 8:29 amSEA-SFO
2h 14mnonstop
$69Delta
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Tue, Apr 15
7:32 pm - 9:50 pmSEA-SFO
2h 18mnonstop
$76United Airlines
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Sat, Feb 15
5:00 am - 7:17 amSEA-SFO
2h 17mnonstop
$79United Airlines
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Fri, Mar 7
6:03 am - 11:05 amSEA-SFO
5h 02m1 stop
$80American Airlines
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Sat, Mar 1
6:10 am - 8:31 amSEA-SFO
2h 21mnonstop
$84Delta
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Fri, Feb 14
12:25 am - 11:05 amSEA-SFO
10h 40m2 stops
$233American Airlines
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Fri, Feb 28
9:47 am - 6:00 pmSEA-SFO
8h 13m1 stop
10:29 pm - 9:40 amSFO-SEA
11h 11m1 stop
$205Frontier
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Mon, Jan 13 - Sat, Jan 18
9:52 pm - 8:48 amSEA-SFO
10h 56m1 stop
10:29 pm - 9:40 amSFO-SEA
11h 11m1 stop
$214Frontier
Find Deal
Sun, Jan 12 - Sat, Jan 18
11:30 am - 1:47 pmSEA-SFO
2h 17mnonstop
7:00 am - 9:15 amSFO-SEA
2h 15mnonstop
$332Alaska Airlines
Find Deal
Mon, Jan 13 - Fri, Jan 31
5:55 pm - 8:07 pmSEA-SFO
2h 12mnonstop
10:00 am - 12:18 pmSFO-SEA
2h 18mnonstop
$412Alaska Airlines
Find Deal
Sun, Jan 12 - Thu, Jan 16
9:40 am - 12:14 amSEA-SFO
14h 34m2 stops
6:05 am - 12:58 pmSFO-SEA
6h 53m1 stop
$463Delta
Find Deal
Mon, Jan 13 - Wed, Jan 22
6:10 am - 8:31 amSEA-SFO
2h 21mnonstop
1:30 pm - 3:54 pmSFO-SEA
2h 24mnonstop
$474Delta
Find Deal
Sun, Jan 12 - Sat, Jan 18
6:10 am - 1:29 pmSEA-SFO
7h 19m1 stop
5:14 am - 1:55 pmSFO-SEA
8h 41m1 stop
$476United Airlines
Find Deal
Sun, Jan 12 - Wed, Jan 22
6:10 am - 12:30 pmSEA-SFO
6h 20m1 stop
4:00 pm - 10:43 pmSFO-SEA
6h 43m1 stop
$529American Airlines
Find Deal
Mon, Jan 13 - Wed, Jan 15
5:00 am - 12:04 pmSEA-SFO
7h 04m1 stop
7:00 pm - 9:20 pmSFO-SEA
2h 20mnonstop
$557United Airlines
Find Deal
Fri, Jan 10 - Sun, Jan 12
3:00 pm - 10:31 pmSEA-SFO
7h 31m1 stop
12:14 pm - 8:00 pmSFO-SEA
7h 46m1 stop
$579American Airlines
Find Deal
Sun, Jan 12 - Tue, Jan 21
7:59 pm - 10:12 pmSEA-SFO
2h 13mnonstop
10:00 am - 12:18 pmSFO-SEA
2h 18mnonstop
$105Alaska Airlines
Find Deal
Mon, Feb 10 - Wed, Feb 12
9:35 pm - 11:49 pmSEA-SFO
2h 14mnonstop
4:48 pm - 7:03 pmSFO-SEA
2h 15mnonstop
$106Alaska Airlines
Find Deal
Mon, Feb 3 - Wed, Feb 5
8:03 am - 10:24 amSEA-SFO
2h 21mnonstop
10:00 am - 12:18 pmSFO-SEA
2h 18mnonstop
$108Alaska Airlines
Find Deal
Thu, Jan 30 - Sun, Feb 2
7:59 pm - 10:10 pmSEA-SFO
2h 11mnonstop
6:00 am - 8:19 amSFO-SEA
2h 19mnonstop
$109Alaska Airlines
Find Deal
Thu, Jan 30 - Sun, Feb 2
6:10 am - 8:31 amSEA-SFO
2h 21mnonstop
6:10 am - 8:35 amSFO-SEA
2h 25mnonstop
$117Delta
Find Deal
Sun, Feb 23 - Sun, Mar 2
6:10 am - 8:31 amSEA-SFO
2h 21mnonstop
6:10 am - 8:35 amSFO-SEA
2h 25mnonstop
$127Delta
Find Deal
Tue, Feb 11 - Sat, Feb 22
3:24 pm - 5:42 pmSEA-SFO
2h 18mnonstop
10:35 pm - 12:55 amSFO-SEA
2h 20mnonstop
$135United Airlines
Find Deal
Thu, Feb 13 - Fri, Feb 14
7:00 am - 9:21 amSEA-SFO
2h 21mnonstop
10:46 pm - 1:06 amSFO-SEA
2h 20mnonstop
$183United Airlines
Find Deal
Fri, Mar 21 - Sun, Mar 23
7:59 pm - 10:10 pmSEA-SFO
2h 11mnonstop
6:00 am - 8:19 amSFO-SEA
2h 19mnonstop
$236American Airlines
Find Deal
Thu, Jan 30 - Sun, Feb 2
5:55 pm - 8:07 pmSEA-SFO
2h 12mnonstop
7:00 am - 9:15 amSFO-SEA
2h 15mnonstop
$315American Airlines
Find Deal
Thu, Jan 30 - Sun, Feb 2

Frontier flights from Seattle to San Francisco

Our best Frontier deals on Seattle to San Francisco flight tickets
Frontier
Feb 10
SEA5:16 pmSeattle/Tacoma Intl
21h 07m
1 stop
SFO2:23 pmSan Francisco
Feb 12
SFO2:53 pmSan Francisco
21h 09m
1 stop
SEA12:02 pmSeattle/Tacoma Intl
Frontier
Feb 10
SEA9:40 amSeattle/Tacoma Intl
21h 36m
1 stop
SFO7:16 amSan Francisco
Feb 13
SFO8:06 amSan Francisco
5h 06m
1 stop
SEA1:12 pmSeattle/Tacoma Intl
Frontier
Mar 8
SEA12:03 pmSeattle/Tacoma Intl
6h 09m
1 stop
SFO6:12 pmSan Francisco
Mar 10
SFO8:06 amSan Francisco
5h 06m
1 stop
SEA1:12 pmSeattle/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 10
SEA7:59 pmSeattle/Tacoma Intl
2h 13m
SFO10:12 pmSan Francisco
Feb 12
SFO10:00 amSan Francisco
2h 18m
SEA12:18 pmSeattle/Tacoma Intl
Alaska Airlines
Feb 3
SEA7:59 pmSeattle/Tacoma Intl
2h 13m
SFO10:12 pmSan Francisco
Feb 5
SFO7:00 amSan Francisco
2h 15m
SEA9:15 amSeattle/Tacoma Intl
Alaska Airlines
Jan 30
SEA1:23 pmSeattle/Tacoma Intl
2h 12m
SFO3:35 pmSan Francisco
Feb 2
SFO6:00 amSan Francisco
2h 19m
SEA8:19 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 typical price of a round-trip flight between Seattle and San Francisco?

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 February 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 $236. In the past 72 hours, momondo users found flights from Seattle to San Francisco for as low as $162.

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 January 2025, prices for Seattle to San Francisco flights are approximately 13% 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

$49

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 $49. The best round-trip flight deal from Seattle to San Francisco found on momondo in the last 72 hours is $96.
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
3,428 reviews
Search Frontier flights
DeltaPriceFrom $108Free CancellationRating
8.0
8,501 reviews
Search Delta flights
Spirit AirlinesPriceFrom $109Free CancellationRating
6.3
8,076 reviews
Search Spirit Airlines flights
Alaska AirlinesPriceFrom $126Free CancellationRating
8.0
9,636 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $126Free CancellationRating
7.4
8,941 reviews
Search United 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 $203. 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 $126, round-trip. It should be noted that an average Alaska Airlines flight deal for this route in this time was higher, at $262 round-trip. Alaska Airlines operates 22 flights out of Seattle into San Francisco in an average week, so prices vary by time and availability. 9,641 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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