Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from San Francisco to Seattle from £44

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 12/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
'This year, momondo is the #1 place for airfares on the internet.'
Voted winner of Europe's Best Travel App 2023
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? to track prices.

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.
22:59 - 08:57SFO-SEA
9h 58m1 stop
21:52 - 08:48SEA-SFO
10h 56m1 stop
£80Frontier
Find Deal
Thu, 12 Dec - Sun, 15 Dec
20:22 - 12:52SFO-SEA
16h 30m1 stop
15:53 - 18:03SEA-SFO
2h 10mdirect
£107Alaska Airlines
Find Deal
Mon, 16 Dec - Tue, 17 Dec
18:52 - 21:09SFO-SEA
2h 17mdirect
05:00 - 07:19SEA-SFO
2h 19mdirect
£108United Airlines
Find Deal
Sat, 14 Dec - Tue, 24 Dec
07:00 - 09:18SFO-SEA
2h 18mdirect
09:57 - 21:08SEA-SFO
11h 11m1 stop
Thu, 12 Dec - Sun, 15 Dec
07:00 - 09:18SFO-SEA
2h 18mdirect
19:05 - 21:23SEA-SFO
2h 18mdirect
£116Alaska Airlines
Find Deal
Wed, 18 Dec - Tue, 24 Dec
10:40 - 12:58SFO-SEA
2h 18mdirect
05:15 - 07:29SEA-SFO
2h 14mdirect
£120United Airlines
Find Deal
Sat, 14 Dec - Sun, 15 Dec
09:21 - 11:55SFO-SEA
2h 34mdirect
06:20 - 08:41SEA-SFO
2h 21mdirect
£122Delta
Find Deal
Sat, 11 Jan - Sun, 12 Jan
06:05 - 08:27SFO-SEA
2h 22mdirect
09:35 - 12:05SEA-SFO
2h 30mdirect
£124Delta
Find Deal
Tue, 10 Dec - Wed, 11 Dec
12:40 - 20:45SFO-SEA
8h 05m2 stops
06:50 - 16:55SEA-SFO
10h 05m1 stop
£173Southwest
Find Deal
Tue, 10 Dec - Wed, 11 Dec
06:35 - 13:50SFO-SEA
7h 15m1 stop
06:50 - 15:25SEA-SFO
8h 35m2 stops
£177Southwest
Find Deal
Thu, 9 Jan - Sat, 11 Jan
22:59 - 08:57SFO-SEA
9h 58m1 stop
£44Frontier
Find Deal
Thu, 12 Dec
06:05 - 08:27SFO-SEA
2h 22mdirect
£54Delta
Find Deal
Wed, 11 Dec
07:00 - 09:18SFO-SEA
2h 18mdirect
£62Alaska Airlines
Find Deal
Wed, 18 Dec
09:00 - 12:52SFO-SEA
3h 52m1 stop
£64Alaska Airlines
Find Deal
Tue, 10 Dec
07:00 - 09:18SFO-SEA
2h 18mdirect
£66Alaska Airlines
Find Deal
Thu, 12 Dec
16:45 - 19:05SFO-SEA
2h 20mdirect
£73United Airlines
Find Deal
Tue, 31 Dec
22:35 - 00:50SFO-SEA
2h 15mdirect
£82United Airlines
Find Deal
Wed, 11 Dec
06:30 - 18:15SFO-SEA
11h 45m2 stops
£122Southwest
Find Deal
Thu, 20 Mar
12:25 - 22:20SFO-SEA
9h 55m2 stops
£144Southwest
Find Deal
Fri, 3 Jan
18:18 - 00:10SFO-SEA
29h 52m3 stops
Thu, 12 Dec
06:05 - 08:30SFO-SEA
2h 25mdirect
21:55 - 00:19SEA-SFO
2h 24mdirect
£330Delta
Find Deal
Mon, 25 Nov - Tue, 26 Nov
12:40 - 19:57SFO-SEA
7h 17m1 stop
06:20 - 08:45SEA-SFO
2h 25mdirect
£338Delta
Find Deal
Mon, 25 Nov - Tue, 26 Nov
17:13 - 22:24SFO-SEA
5h 11m1 stop
17:10 - 21:52SEA-SFO
4h 42m1 stop
£345Delta
Find Deal
Mon, 25 Nov - Tue, 26 Nov
12:40 - 22:23SFO-SEA
9h 43m1 stop
07:05 - 13:30SEA-SFO
6h 25m1 stop
£359Delta
Find Deal
Mon, 25 Nov - Tue, 3 Dec
09:50 - 06:28SFO-SEA
20h 38m1 stop
09:50 - 12:10SEA-SFO
2h 20mdirect
£363Alaska Airlines
Find Deal
Sat, 23 Nov - Sun, 24 Nov
08:00 - 10:22SFO-SEA
2h 22mdirect
13:59 - 16:16SEA-SFO
2h 17mdirect
£369Alaska Airlines
Find Deal
Mon, 25 Nov - Tue, 3 Dec
16:30 - 22:30SFO-SEA
6h 00m1 stop
14:00 - 16:17SEA-SFO
2h 17mdirect
£379United Airlines
Find Deal
Sat, 23 Nov - Tue, 3 Dec
20:55 - 10:00SFO-SEA
13h 05m2 stops
05:00 - 12:15SEA-SFO
7h 15m1 stop
£411Southwest
Find Deal
Mon, 25 Nov - Thu, 28 Nov
14:30 - 22:10SFO-SEA
7h 40m2 stops
07:00 - 15:55SEA-SFO
8h 55m2 stops
£415Southwest
Find Deal
Mon, 25 Nov - Thu, 28 Nov
10:35 - 12:53SFO-SEA
2h 18mdirect
17:10 - 22:59SEA-SFO
5h 49m1 stop
£424United Airlines
Find Deal
Sat, 23 Nov - Mon, 2 Dec
18:52 - 21:09SFO-SEA
2h 17mdirect
05:00 - 07:19SEA-SFO
2h 19mdirect
£108United Airlines
Find Deal
Sat, 14 Dec - Tue, 24 Dec
07:00 - 09:18SFO-SEA
2h 18mdirect
19:05 - 21:23SEA-SFO
2h 18mdirect
£116Alaska Airlines
Find Deal
Wed, 18 Dec - Tue, 24 Dec
14:41 - 16:59SFO-SEA
2h 18mdirect
19:51 - 22:06SEA-SFO
2h 15mdirect
£119Alaska Airlines
Find Deal
Tue, 10 Dec - Tue, 10 Dec
20:55 - 23:24SFO-SEA
2h 29mdirect
21:55 - 00:15SEA-SFO
2h 20mdirect
£120Delta
Find Deal
Sat, 14 Dec - Sun, 15 Dec
09:21 - 11:55SFO-SEA
2h 34mdirect
06:20 - 08:41SEA-SFO
2h 21mdirect
£122Delta
Find Deal
Sat, 11 Jan - Sun, 12 Jan
06:05 - 08:27SFO-SEA
2h 22mdirect
09:35 - 12:05SEA-SFO
2h 30mdirect
£124Delta
Find Deal
Tue, 10 Dec - Wed, 11 Dec
06:05 - 08:27SFO-SEA
2h 22mdirect
09:35 - 12:05SEA-SFO
2h 30mdirect
£126Delta
Find Deal
Sun, 15 Dec - Wed, 18 Dec
07:00 - 09:18SFO-SEA
2h 18mdirect
20:49 - 23:04SEA-SFO
2h 15mdirect
£127Alaska Airlines
Find Deal
Thu, 12 Dec - Sun, 15 Dec
07:00 - 09:18SFO-SEA
2h 18mdirect
19:05 - 21:23SEA-SFO
2h 18mdirect
£128Alaska Airlines
Find Deal
Wed, 18 Dec - Sun, 29 Dec
10:40 - 12:58SFO-SEA
2h 18mdirect
05:15 - 07:29SEA-SFO
2h 14mdirect
£132United Airlines
Find Deal
Thu, 12 Dec - Sun, 15 Dec

United Airlines flights from San Francisco to Seattle

Our best United Airlines deals on San Francisco to Seattle flight tickets
United Airlines
14 Dec
SFO18:52San Francisco
2h 17m
SEA21:09Seattle/Tacoma Intl
24 Dec
SEA05:00Seattle/Tacoma Intl
2h 19m
SFO07:19San Francisco
United Airlines
14 Dec
SFO10:40San Francisco
2h 18m
SEA12:58Seattle/Tacoma Intl
15 Dec
SEA05:15Seattle/Tacoma Intl
2h 14m
SFO07:29San Francisco
United Airlines
12 Dec
SFO10:40San Francisco
2h 18m
SEA12:58Seattle/Tacoma Intl
15 Dec
SEA05:15Seattle/Tacoma Intl
2h 14m
SFO07:29San Francisco

Delta flights from San Francisco to Seattle

Our best Delta deals on San Francisco to Seattle flight tickets
Delta
11 Jan
SFO09:21San Francisco
2h 34m
SEA11:55Seattle/Tacoma Intl
12 Jan
SEA06:20Seattle/Tacoma Intl
2h 21m
SFO08:41San Francisco
Delta
10 Dec
SFO06:05San Francisco
2h 22m
SEA08:27Seattle/Tacoma Intl
11 Dec
SEA09:35Seattle/Tacoma Intl
2h 30m
SFO12:05San Francisco
Delta
15 Dec
SFO06:05San Francisco
2h 22m
SEA08:27Seattle/Tacoma Intl
18 Dec
SEA09:35Seattle/Tacoma Intl
2h 30m
SFO12:05San 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 cheapest month to fly from San Francisco to Seattle?

January. The cheapest time of year to fly to Seattle from San Francisco is January. The most expensive is June.

What is the cheapest day to depart San Francisco for Seattle?

Wednesday. The cheapest day of the week is usually Wednesday. The most expensive is usually Friday.

When is the cheapest time to fly from San Francisco to Seattle?

In the morning. San Francisco to Seattle flights are approximately 3% more expensive in the evening than in the morning

What is the cheapest San Francisco to Seattle flight route?

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

How far in advance should you book San Francisco to Seattle flights?

22 days before. The cheapest time to buy a flight from San Francisco to Seattle is approximately 22 days to departure

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

You could potentially save up to 18% 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 November 2024, prices for San Francisco to Seattle flights are approximately 17% cheaper when compared to flights at the same time last year.

What is the typical price of a round-trip flight between San Francisco and Seattle?


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

£44

Fastest flight time

2h 13m

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 £44. The best return flight deal from San Francisco to Seattle found on momondo in the last 72 hours is £80.
The fastest flight from San Francisco to Seattle takes 2h 13m
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 13m, 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 £180, 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 13m by plane in normal conditions.

  • What is the carbon footprint of flying from San Francisco to Seattle/Tacoma Intl?

    Flying from San Francisco to Seattle/Tacoma Intl has a carbon footprint of about 553lb. Flight search results on momondo can be sorted by their carbon footprint. Choosing a train for this journey would reduce your carbon footprint from 553lb to 151lb - that is, by about 73%. By bus, this journey’s emissions can be cut to 95lb. This would result in a 83% smaller carbon footprint vs. flying.

  • 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 £113Free CancellationRating
8.0
9,458 reviews
Search Alaska Airlines flights
  • Alaska Airlines Flights From San Francisco to Seattle

    Alaska Airlines flies from San Francisco to Seattle around 7 times per week, with 9,458 momondo users rating the airline 8.0/10. The cheapest Alaska Airlines deal from San Francisco to Seattle in the last 72 hours was £144 (round-trip), much lower than the average airfare cost of £228 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.


Choose the best way to get from San Francisco to Seattle

Buses

20h 30m
£173 one-way£178 return
Direct · from £178

Distance to city centre

US31456933.4 mi
EA91.1 mi
95lb CO2

83% less than flights

Find Buses

San Francisco to Seattle Buses

Trains

22h 10m
£78 one-way£180 return
Direct · from £180

Distance to city centre

EA91.1 mi
151lb CO2

73% less than flights

Find Trains

San Francisco to Seattle Trains

Flights

2h 15m
£44 one-way£80 return
Direct · from £1081 stop · from £92

Distance to city centre

SEA11.4 mi

An easier way to manage your Seattle trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
Mon 25/11
Mon 2/12
Email me momondo's favourite deals

Find better results for your trip to the United States