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Cheap flights from Seattle to San Francisco from £55

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 18/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Seattle to San Francisco

Cheap return flights

These are some of the best return 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 stopovers.

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.
15:15 - 00:11SEA-SFO
8h 56m1 stop
22:29 - 09:47SFO-SEA
11h 18m1 stop
£86Frontier
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Thu, 9 Jan - Sat, 11 Jan
15:15 - 00:11SEA-SFO
8h 56m1 stop
22:29 - 09:47SFO-SEA
11h 18m1 stop
£97Frontier
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Thu, 9 Jan - Sat, 11 Jan
15:15 - 00:11SEA-SFO
8h 56m1 stop
07:00 - 09:15SFO-SEA
2h 15mdirect
Thu, 9 Jan - Sat, 11 Jan
08:40 - 10:57SEA-SFO
2h 17mdirect
14:41 - 16:59SFO-SEA
2h 18mdirect
£104Alaska Airlines
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Tue, 17 Dec - Tue, 17 Dec
21:55 - 00:15SEA-SFO
2h 20mdirect
20:35 - 23:00SFO-SEA
2h 25mdirect
£108Delta
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Sat, 14 Dec - Tue, 14 Jan
19:59 - 22:10SEA-SFO
2h 11mdirect
07:00 - 09:15SFO-SEA
2h 15mdirect
£117Alaska Airlines
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Thu, 9 Jan - Sat, 11 Jan
08:45 - 12:52SEA-SFO
4h 07m1 stop
17:40 - 19:57SFO-SEA
2h 17mdirect
£118Alaska Airlines
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Thu, 9 Jan - Sat, 11 Jan
21:55 - 00:15SEA-SFO
2h 20mdirect
09:21 - 11:55SFO-SEA
2h 34mdirect
£120Delta
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Sat, 14 Dec - Sun, 12 Jan
05:30 - 13:55SEA-SFO
8h 25m1 stop
13:40 - 21:00SFO-SEA
7h 20m2 stops
£165Southwest
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Sat, 14 Dec - Tue, 14 Jan
05:30 - 13:00SEA-SFO
7h 30m2 stops
13:40 - 21:00SFO-SEA
7h 20m2 stops
£199Southwest
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Sat, 14 Dec - Tue, 14 Jan
06:20 - 08:42SEA-SFO
2h 22mdirect
£55Delta
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Wed, 18 Dec
19:59 - 22:16SEA-SFO
2h 17mdirect
£63Alaska Airlines
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Wed, 25 Dec
06:35 - 11:51SEA-SFO
5h 16m1 stop
£64Alaska Airlines
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Thu, 12 Dec
07:42 - 16:32SEA-SFO
8h 50m1 stop
£65Alaska Airlines
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Sat, 25 Jan
09:35 - 12:05SEA-SFO
2h 30mdirect
£67Delta
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Fri, 13 Dec
07:15 - 09:37SEA-SFO
2h 22mdirect
£82United Airlines
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Tue, 24 Dec
05:00 - 07:19SEA-SFO
2h 19mdirect
£90United Airlines
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Thu, 26 Dec
12:25 - 20:35SEA-SFO
8h 10m2 stops
£104Southwest
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Thu, 23 Jan
05:05 - 14:35SEA-SFO
9h 30m1 stop
£105Southwest
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Fri, 17 Jan
00:45 - 20:51SEA-SFO
20h 06m1 stop
£263American Airlines
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Sun, 8 Dec
12:03 - 00:34SEA-SFO
12h 31m1 stop
06:00 - 07:41SFO-SEA
25h 41m1 stop
£260Frontier
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Wed, 27 Nov - Fri, 29 Nov
20:19 - 22:34SEA-SFO
2h 15mdirect
17:40 - 19:57SFO-SEA
2h 17mdirect
£271Alaska Airlines
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Sat, 23 Nov - Sat, 11 Jan
17:59 - 20:14SEA-SFO
2h 15mdirect
08:00 - 10:15SFO-SEA
2h 15mdirect
£283Alaska Airlines
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Mon, 25 Nov - Mon, 16 Dec
09:40 - 16:35SEA-SFO
6h 55m1 stop
09:44 - 12:20SFO-SEA
2h 36mdirect
£306Delta
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Tue, 26 Nov - Tue, 17 Dec
11:44 - 07:45SEA-SFO
20h 01m1 stop
09:16 - 19:32SFO-SEA
10h 16m1 stop
Tue, 26 Nov - Thu, 28 Nov
09:40 - 16:35SEA-SFO
6h 55m1 stop
09:44 - 12:20SFO-SEA
2h 36mdirect
£338Delta
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Sun, 24 Nov - Tue, 17 Dec
12:20 - 18:45SEA-SFO
6h 25m1 stop
12:40 - 23:00SFO-SEA
10h 20m2 stops
£357Southwest
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Wed, 27 Nov - Wed, 18 Dec
05:40 - 12:30SEA-SFO
6h 50m2 stops
12:40 - 23:00SFO-SEA
10h 20m2 stops
£361Southwest
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Wed, 27 Nov - Wed, 18 Dec
05:36 - 07:50SEA-SFO
2h 14mdirect
10:35 - 12:53SFO-SEA
2h 18mdirect
£429United Airlines
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Mon, 25 Nov - Mon, 25 Nov
06:31 - 12:05SEA-SFO
5h 34m1 stop
13:15 - 15:33SFO-SEA
2h 18mdirect
£441United Airlines
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Wed, 27 Nov - Thu, 28 Nov
08:40 - 10:57SEA-SFO
2h 17mdirect
14:41 - 16:59SFO-SEA
2h 18mdirect
£104Alaska Airlines
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Tue, 17 Dec - Tue, 17 Dec
07:00 - 09:12SEA-SFO
2h 12mdirect
06:00 - 08:15SFO-SEA
2h 15mdirect
£108Alaska Airlines
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Sat, 1 Mar - Wed, 5 Mar
19:59 - 22:10SEA-SFO
2h 11mdirect
07:00 - 09:15SFO-SEA
2h 15mdirect
£117Alaska Airlines
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Thu, 9 Jan - Sat, 11 Jan
06:55 - 09:11SEA-SFO
2h 16mdirect
07:00 - 09:15SFO-SEA
2h 15mdirect
£118Alaska Airlines
Find Deal
Thu, 9 Jan - Sat, 11 Jan
21:55 - 00:15SEA-SFO
2h 20mdirect
09:21 - 11:55SFO-SEA
2h 34mdirect
£120Delta
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Sat, 14 Dec - Sun, 12 Jan
13:30 - 15:51SEA-SFO
2h 21mdirect
06:05 - 08:27SFO-SEA
2h 22mdirect
£121Delta
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Sat, 14 Dec - Sun, 15 Dec
17:35 - 19:50SEA-SFO
2h 15mdirect
06:10 - 08:35SFO-SEA
2h 25mdirect
£124Delta
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Sat, 15 Feb - Sun, 16 Feb
11:56 - 14:13SEA-SFO
2h 17mdirect
21:30 - 23:50SFO-SEA
2h 20mdirect
£154United Airlines
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Sat, 14 Dec - Thu, 19 Dec
14:00 - 16:17SEA-SFO
2h 17mdirect
21:30 - 23:50SFO-SEA
2h 20mdirect
£165United Airlines
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Mon, 16 Dec - Thu, 19 Dec
18:13 - 20:32SEA-SFO
2h 19mdirect
21:30 - 23:50SFO-SEA
2h 20mdirect
£177United Airlines
Find Deal
Wed, 25 Dec - Sat, 28 Dec

Frontier flights from Seattle to San Francisco

Our best Frontier deals on Seattle to San Francisco flight tickets
Frontier
9 Jan
SEA15:15Seattle/Tacoma Intl
8h 56m
1 stop
SFO00:11San Francisco
11 Jan
SFO22:29San Francisco
11h 18m
1 stop
SEA09:47Seattle/Tacoma Intl
Frontier
9 Jan
SEA15:15Seattle/Tacoma Intl
8h 56m
1 stop
SFO00:11San Francisco
11 Jan
SFO22:29San Francisco
11h 18m
1 stop
SEA09:47Seattle/Tacoma Intl
Frontier
27 Nov
SEA12:03Seattle/Tacoma Intl
12h 31m
1 stop
SFO00:34San Francisco
29 Nov
SFO06:00San Francisco
25h 41m
1 stop
SEA07:41Seattle/Tacoma Intl

Alaska Airlines flights from Seattle to San Francisco

Our best Alaska Airlines deals on Seattle to San Francisco flight tickets
Alaska Airlines
17 Dec
SEA08:40Seattle/Tacoma Intl
2h 17m
SFO10:57San Francisco
17 Dec
SFO14:41San Francisco
2h 18m
SEA16:59Seattle/Tacoma Intl
Alaska Airlines
9 Jan
SEA19:59Seattle/Tacoma Intl
2h 11m
SFO22:10San Francisco
11 Jan
SFO07:00San Francisco
2h 15m
SEA09:15Seattle/Tacoma Intl
Alaska Airlines
9 Jan
SEA08:45Seattle/Tacoma Intl
4h 07m
1 stop
SFO12:52San Francisco
11 Jan
SFO17:40San Francisco
2h 17m
SEA19:57Seattle/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?

The month of September is, on average, the cheapest month to fly to San Francisco from Seattle, with most prices found around £163. If you are unable to visit San Francisco during the month of September, then departing from Seattle during the month January is also very affordable. Most momondo users find prices during this month for around £168.

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

The cheapest day to depart on your flight to San Francisco is on a Wednesday when prices can be found for as low as £0. This is often the case because there is less demand to fly during this day of the week. Flights from Seattle to San Francisco on a Monday will generally be more expensive and average around £237. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our most recent data shows that the best time of day to fly to San Francisco is at midday. Flights from Seattle to San Francisco during this time can be as low as £0. Try not to purchase tickets in the morning because they tend to be around £191. Of course, these prices can vary depending on the time of year and what airport you fly to.

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?

In general, most travellers find the cheapest time to book a flight to San Francisco is about 57 days prior to their departure date, when tickets on average are £184. Keep in mind that you might also find cheap flights to San Francisco outside of this time window. In fact, momondo users recently found flights from Seattle to San Francisco for £102.

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

There are 2 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 17% 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 November 2024, prices for Seattle to San Francisco flights are approximately 4% 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

£55

Fastest flight time

2h 10m

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 £55. The best return flight deal from Seattle to San Francisco found on momondo in the last 72 hours is £86.
The fastest flight from Seattle to San Francisco takes 2h 10m
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?

    The distance between Seattle/Tacoma Intl and San Francisco is about 678.2 mi. Typically, this will take 2h 10m by plane in normal conditions.

  • 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?

    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 layovers. 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 required for your trip to San Francisco Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Francisco Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • 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
Alaska AirlinesPriceFrom £101Free CancellationRating
8.0
9,469 reviews
Search Alaska Airlines flights
  • Alaska Airlines Flights From Seattle to San Francisco

    Alaska Airlines flight deals from Seattle to San Francisco start from £128 round-trip. Over the 9 Alaska Airlines flights for this route in a normal week, average airfare is usually £206 round-trip - but some users have found much cheaper deals with momondo.


Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Francisco from Seattle.

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

Flights from Seattle to San Francisco with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Seattle to San Francisco flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for Seattle to San Francisco flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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