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Cheap flights from San Francisco to Seattle from £47

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Seattle departing on 21/1. 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 San Francisco to Seattle

Cheap return flights

These are some of the best return flight deals from San Francisco to Seattle 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 San Francisco to Seattle.

Cheap last-minute flights

Planning a quick getaway from San Francisco to Seattle? 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 Seattle, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from San Francisco to Seattle

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

All round-trip flight deals to Seattle

The cheapest plane tickets to Seattle found on KAYAK recently.
19:55 - 14:53SFO-SEA
18h 58m1 stop
17:45 - 20:03SEA-SFO
2h 18mdirect
£84Alaska Airlines
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Fri, 10 Jan - Sat, 11 Jan
16:32 - 18:47SFO-SEA
2h 15mdirect
21:35 - 23:49SEA-SFO
2h 14mdirect
£88Alaska Airlines
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Mon, 13 Jan - Mon, 13 Jan
13:30 - 15:54SFO-SEA
2h 24mdirect
06:10 - 08:31SEA-SFO
2h 21mdirect
£92Delta
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Mon, 13 Jan - Thu, 16 Jan
06:10 - 08:35SFO-SEA
2h 25mdirect
06:10 - 08:31SEA-SFO
2h 21mdirect
£93Delta
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Fri, 10 Jan - Sun, 12 Jan
07:00 - 09:15SFO-SEA
2h 15mdirect
11:36 - 16:31SEA-SFO
4h 55m1 stop
£96Alaska Airlines
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Mon, 13 Jan - Mon, 13 Jan
13:25 - 15:45SFO-SEA
2h 20mdirect
07:00 - 09:20SEA-SFO
2h 20mdirect
£100United Airlines
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Fri, 17 Jan - Fri, 24 Jan
06:10 - 08:35SFO-SEA
2h 25mdirect
13:35 - 15:47SEA-SFO
2h 12mdirect
£102Delta
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Sun, 19 Jan - Sat, 25 Jan
19:00 - 21:20SFO-SEA
2h 20mdirect
09:20 - 11:39SEA-SFO
2h 19mdirect
£133United Airlines
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Thu, 9 Jan - Wed, 15 Jan
06:35 - 13:50SFO-SEA
7h 15m1 stop
05:05 - 14:35SEA-SFO
9h 30m1 stop
£200Southwest
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Tue, 14 Jan - Thu, 16 Jan
06:05 - 17:50SFO-SEA
11h 45m2 stops
05:05 - 11:35SEA-SFO
6h 30m1 stop
£203Southwest
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Mon, 13 Jan - Thu, 16 Jan
07:00 - 09:15SFO-SEA
2h 15mdirect
£47Alaska Airlines
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Tue, 21 Jan
13:45 - 16:00SFO-SEA
2h 15mdirect
£55Delta
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Tue, 18 Mar
07:00 - 09:15SFO-SEA
2h 15mdirect
£61Alaska Airlines
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Fri, 17 Jan
06:05 - 08:25SFO-SEA
2h 20mdirect
£67Delta
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Fri, 25 Apr
08:00 - 12:46SFO-SEA
4h 46m1 stop
£70Alaska Airlines
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Tue, 21 Jan
20:40 - 23:05SFO-SEA
2h 25mdirect
£71Delta
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Tue, 7 Jan
13:35 - 15:54SFO-SEA
2h 19mdirect
£83United Airlines
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Tue, 25 Mar
19:00 - 21:20SFO-SEA
2h 20mdirect
£97United Airlines
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Tue, 7 Jan
11:25 - 19:40SFO-SEA
8h 15m2 stops
£104Southwest
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Sat, 11 Jan
09:00 - 20:10SFO-SEA
11h 10m2 stops
£109Southwest
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Fri, 31 Jan
12:14 - 14:34SFO-SEA
2h 20mdirect
13:23 - 15:35SEA-SFO
2h 12mdirect
£244Alaska Airlines
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Thu, 26 Dec - Thu, 9 Jan
21:29 - 23:44SFO-SEA
2h 15mdirect
13:23 - 15:35SEA-SFO
2h 12mdirect
£264Alaska Airlines
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Sun, 22 Dec - Thu, 9 Jan
08:00 - 10:20SFO-SEA
2h 20mdirect
08:45 - 12:52SEA-SFO
4h 07m1 stop
£278Alaska Airlines
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Thu, 26 Dec - Thu, 9 Jan
16:45 - 00:24SFO-SEA
7h 39m1 stop
17:35 - 19:57SEA-SFO
2h 22mdirect
£280Delta
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Thu, 26 Dec - Thu, 9 Jan
14:03 - 22:30SFO-SEA
8h 27m1 stop
15:25 - 17:44SEA-SFO
2h 19mdirect
£300United Airlines
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Sun, 22 Dec - Thu, 9 Jan
06:00 - 08:18SFO-SEA
2h 18mdirect
08:45 - 12:52SEA-SFO
4h 07m1 stop
£309Alaska Airlines
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Thu, 26 Dec - Wed, 8 Jan
14:03 - 22:30SFO-SEA
8h 27m1 stop
15:18 - 22:56SEA-SFO
7h 38m1 stop
£321United Airlines
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Sun, 22 Dec - Mon, 27 Jan
07:25 - 17:20SFO-SEA
9h 55m1 stop
19:40 - 09:10SEA-SFO
13h 30m1 stop
£361Southwest
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Thu, 26 Dec - Sat, 4 Jan
19:25 - 21:51SFO-SEA
2h 26mdirect
17:05 - 00:28SEA-SFO
7h 23m1 stop
£362Delta
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Thu, 26 Dec - Thu, 2 Jan
12:40 - 21:45SFO-SEA
9h 05m2 stops
19:40 - 09:10SEA-SFO
13h 30m1 stop
£365Southwest
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Tue, 24 Dec - Sat, 4 Jan
16:32 - 18:47SFO-SEA
2h 15mdirect
21:35 - 23:49SEA-SFO
2h 14mdirect
£88Alaska Airlines
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Mon, 13 Jan - Mon, 13 Jan
20:40 - 23:05SFO-SEA
2h 25mdirect
06:10 - 08:31SEA-SFO
2h 21mdirect
£93Delta
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Sat, 11 Jan - Sun, 12 Jan
06:10 - 08:35SFO-SEA
2h 25mdirect
20:10 - 22:23SEA-SFO
2h 13mdirect
£101Delta
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Sat, 1 Mar - Tue, 11 Mar
07:00 - 09:15SFO-SEA
2h 15mdirect
19:59 - 22:12SEA-SFO
2h 13mdirect
£107Alaska Airlines
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Fri, 17 Jan - Fri, 24 Jan
18:05 - 20:25SFO-SEA
2h 20mdirect
20:10 - 22:29SEA-SFO
2h 19mdirect
£109Delta
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Sat, 26 Apr - Tue, 29 Apr
06:10 - 08:35SFO-SEA
2h 25mdirect
06:10 - 08:31SEA-SFO
2h 21mdirect
£113Delta
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Thu, 16 Jan - Sat, 18 Jan
07:00 - 09:15SFO-SEA
2h 15mdirect
11:30 - 13:47SEA-SFO
2h 17mdirect
£122Alaska Airlines
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Fri, 17 Jan - Tue, 21 Jan
19:00 - 21:20SFO-SEA
2h 20mdirect
12:50 - 15:09SEA-SFO
2h 19mdirect
£149United Airlines
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Sun, 26 Jan - Fri, 31 Jan
16:48 - 19:08SFO-SEA
2h 20mdirect
09:20 - 11:39SEA-SFO
2h 19mdirect
£150United Airlines
Find Deal
Sat, 11 Jan - Sun, 12 Jan
13:05 - 15:25SFO-SEA
2h 20mdirect
09:20 - 11:39SEA-SFO
2h 19mdirect
£175United Airlines
Find Deal
Sun, 5 Jan - Sun, 12 Jan

Alaska Airlines flights from San Francisco to Seattle

Our best Alaska Airlines deals on San Francisco to Seattle flight tickets
Alaska Airlines
10 Jan
SFO19:55San Francisco
18h 58m
1 stop
SEA14:53Seattle/Tacoma Intl
11 Jan
SEA17:45Seattle/Tacoma Intl
2h 18m
SFO20:03San Francisco
Alaska Airlines
13 Jan
SFO16:32San Francisco
2h 15m
SEA18:47Seattle/Tacoma Intl
13 Jan
SEA21:35Seattle/Tacoma Intl
2h 14m
SFO23:49San Francisco
Alaska Airlines
13 Jan
SFO07:00San Francisco
2h 15m
SEA09:15Seattle/Tacoma Intl
13 Jan
SEA11:36Seattle/Tacoma Intl
4h 55m
1 stop
SFO16:31San Francisco

Delta flights from San Francisco to Seattle

Our best Delta deals on San Francisco to Seattle flight tickets
Delta
13 Jan
SFO13:30San Francisco
2h 24m
SEA15:54Seattle/Tacoma Intl
16 Jan
SEA06:10Seattle/Tacoma Intl
2h 21m
SFO08:31San Francisco
Delta
10 Jan
SFO06:10San Francisco
2h 25m
SEA08:35Seattle/Tacoma Intl
12 Jan
SEA06:10Seattle/Tacoma Intl
2h 21m
SFO08:31San Francisco
Delta
19 Jan
SFO06:10San Francisco
2h 25m
SEA08:35Seattle/Tacoma Intl
25 Jan
SEA13:35Seattle/Tacoma Intl
2h 12m
SFO15:47San Francisco

See travel insights to Seattle from

How to get the cheapest flight ticket from San Francisco to Seattle

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 San Francisco and Seattle?

What is the cheapest month to fly to Seattle?

The cheapest month to fly to Seattle from San Francisco is in October. Flight prices, which tend to average around £157, are often lower during this time because this is during the off-season. The month of January is another great option to travel to Seattle, with average flight prices from San Francisco averaging around £158.

What is the cheapest day to depart on your flight to Seattle?

According to our data, Wednesday is the cheapest day to fly to Seattle from San Francisco. The lowest ticket price found for a Wednesday departure recently was £117. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Seattle on Friday is £308.

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

According to our data, the cheapest time of day to fly to Seattle is at midday. momondo users have found flights departing from San Francisco to Seattle at midday for as low as £0. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive, with an average ticket price of £188.

What is the cheapest San Francisco to Seattle/Tacoma Intl flight route?

Fly from San Francisco to Seattle/Tacoma Intl for the best San Francisco - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

In general, most travellers find the cheapest time to book a flight to Seattle is about 22 days prior to their departure date, when tickets on average are £197. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from San Francisco for as low as £117 on momondo.

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

There are 4 cabin classes available to choose from on San Francisco to Seattle/Tacoma Intl 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 San Francisco to Seattle flights?

You could potentially save up to 49% on your flight if you consider stops on a San Francisco to Seattle flight.

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

As of December 2024, prices for San Francisco to Seattle flights are approximately 7% more expensive when compared to flights at the same time last year.

When to book flights from San Francisco to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap San Francisco to Seattle (SFO to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Seattle

Best price found

£47

Fastest flight time

2h 14m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from San Francisco in the past 72 hours is £47. The best return flight deal from San Francisco to Seattle found on momondo in the last 72 hours is £84.
The fastest flight from San Francisco to Seattle takes 2h 14m
Direct flights go from San Francisco to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

  • Is flying the fastest way to get from San Francisco to Seattle?

    At 2h 14m, choosing to opt for a flight from San Francisco to Seattle for this trip as opposed to a train from San Francisco to Seattle or a bus from San Francisco to Seattle can save you time on travel.

  • Is flying the cheapest way to get from San Francisco to Seattle?

    A flight from San Francisco to Seattle is currently going to be the least expensive option currently available. You can also find deals for a train from San Francisco to Seattle starting at £176, or consider a bus from San Francisco to Seattle starting at £178. Both of these alternative options are worth considering when looking to reach your destination.

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

    The straight-line distance from San Francisco to Seattle/Tacoma Intl is 678.2 mi. Typically, this will take 2h 14m by plane in normal conditions.

  • When did momondo last update prices for flights from San Francisco Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from San Francisco Airport to Seattle/Tacoma Intl Airport were last updated today.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Francisco Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents required for your trip to Seattle/Tacoma Intl 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 Seattle/Tacoma Intl 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 San Francisco to Seattle?

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


Best airlines flying from San Francisco to Seattle

Compare and see reviews for airlines that fly from San Francisco to Seattle with momondo
Airline
Rating
Free Cancellation
Price
Alaska AirlinesPriceFrom £109Free CancellationRating
8.0
9,537 reviews
Search Alaska Airlines flights
  • Alaska Airlines Flights From San Francisco to Seattle

    Alaska Airlines flies from San Francisco to Seattle around 10 times per week, with 9,537 momondo users rating the airline 8.0/10. The cheapest Alaska Airlines deal from San Francisco to Seattle in the last 72 hours was £138 (round-trip), much lower than the average airfare cost of £238 for Alaska Airlines flights on this route.


Why use momondo?

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

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 Seattle from San Francisco.

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

Yes. momondo enables you to select and highlight flights to Seattle from San Francisco with this policy.

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

momondo helps you find the best flight between San Francisco and Seattle 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 San Francisco to Seattle right now. Can momondo alert me if prices change?

Price alerts on flights to Seattle from San Francisco 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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