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Cheap flights from Seattle to San Francisco from $127

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 8/4. 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.
13:36 - 00:43SEA-SFO
11h 07m1 stop
22:59 - 09:30SFO-SEA
10h 31m1 stop
$162Frontier
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Wed, 5 Mar - Wed, 12 Mar
11:13 - 09:42SEA-SFO
22h 29m1 stop
14:53 - 12:02SFO-SEA
21h 09m1 stop
$167Frontier
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Mon, 3 Mar - Wed, 5 Mar
13:36 - 00:43SEA-SFO
11h 07m1 stop
08:20 - 10:35SFO-SEA
2h 15mdirect
Wed, 5 Mar - Wed, 12 Mar
13:34 - 15:43SEA-SFO
2h 09mdirect
17:50 - 20:00SFO-SEA
2h 10mdirect
$243Alaska Airlines
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Wed, 5 Mar - Wed, 5 Mar
07:00 - 09:12SEA-SFO
2h 12mdirect
07:00 - 09:14SFO-SEA
2h 14mdirect
$252Alaska Airlines
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Tue, 18 Mar - Tue, 25 Mar
20:10 - 22:23SEA-SFO
2h 13mdirect
06:05 - 08:26SFO-SEA
2h 21mdirect
$268Delta
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Thu, 20 Mar - Wed, 26 Mar
21:31 - 23:44SEA-SFO
2h 13mdirect
06:00 - 12:36SFO-SEA
6h 36m1 stop
Mon, 3 Mar - Wed, 5 Mar
06:15 - 08:33SEA-SFO
2h 18mdirect
06:05 - 08:26SFO-SEA
2h 21mdirect
$276Delta
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Tue, 25 Mar - Fri, 28 Mar
17:15 - 00:30SEA-SFO
7h 15m1 stop
06:00 - 15:00SFO-SEA
9h 00m2 stops
$297Southwest
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Thu, 13 Mar - Wed, 19 Mar
09:40 - 16:15SEA-SFO
6h 35m1 stop
17:50 - 00:30SFO-SEA
6h 40m1 stop
$305Southwest
Find Deal
Fri, 28 Mar - Mon, 31 Mar

Delta flights from Seattle to San Francisco

Our best Delta deals on Seattle to San Francisco flight tickets
Delta
20 Mar
SEA20:10Seattle/Tacoma Intl
2h 13m
SFO22:23San Francisco
26 Mar
SFO06:05San Francisco
2h 21m
SEA08:26Seattle/Tacoma Intl
Delta
25 Mar
SEA06:15Seattle/Tacoma Intl
2h 18m
SFO08:33San Francisco
28 Mar
SFO06:05San Francisco
2h 21m
SEA08:26Seattle/Tacoma Intl
Delta
16 Mar
SEA06:15Seattle/Tacoma Intl
2h 18m
SFO08:33San Francisco
19 Mar
SFO13:45San Francisco
2h 17m
SEA16:02Seattle/Tacoma Intl

Southwest flights from Seattle to San Francisco

Our best Southwest deals on Seattle to San Francisco flight tickets
Southwest
13 Mar
SEA17:15Seattle/Tacoma Intl
7h 15m
1 stop
SFO00:30San Francisco
19 Mar
SFO06:00San Francisco
9h 00m
2 stops
SEA15:00Seattle/Tacoma Intl
Southwest
28 Mar
SEA09:40Seattle/Tacoma Intl
6h 35m
1 stop
SFO16:15San Francisco
31 Mar
SFO17:50San Francisco
6h 40m
1 stop
SEA00:30Seattle/Tacoma Intl
Southwest
7 Mar
SEA05:00Seattle/Tacoma Intl
11h 15m
1 stop
SFO16:15San Francisco
12 Mar
SFO13:50San Francisco
7h 40m
2 stops
SEA21:30Seattle/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 during the month of February, then book flights to San Francisco from Seattle during September instead. Flights to San Francisco in September, while not as cheap as those in February, still average around $331.

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

According to our data, Friday is the cheapest day to fly to San Francisco from Seattle. The lowest ticket price found for a Friday departure recently was $0. 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 Sunday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to San Francisco for around $2,247.

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 $308. 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 at midday when prices are $2,387 on average. Flights to San Francisco from Seattle at midday 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 21 weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $379 when searching 21 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 $273 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 February 2025, 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 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

$127

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 $127. The best return flight deal from Seattle to San Francisco found on momondo in the last 72 hours is $162.
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?

    Seattle/Tacoma Intl and San Francisco are 1091.5 km apart from one another. A reasonable flight in good conditions will take 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 refresh 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 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?

  • 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 $210Free cancellationRating
8.0
9,679 reviews
Search Alaska Airlines flights
  • Alaska Airlines Flights From Seattle to San Francisco

    Across 34 Alaska Airlines flights from Seattle to San Francisco this week, the average price was $171, with the best Alaska Airlines deals starting from $131 round-trip. 9,677 users have rated Alaska Airlines on momondo, with an average score of 8.0/10.


Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Walnut Creek
Carmel-by-the-Sea
Watsonville
San Mateo
Pacifica
Sausalito
Mountain View
Santa Cruz
Salinas
Pebble Beach
Union City
Fremont
San Lorenzo
Brentwood

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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