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Cheap flights from San Francisco to Seattle from €65

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 28/10. 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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Cheap return flights

Alaska Airlines Logo
13:23 - 17:00SFO-SEA
3h 37m1 stop
Alaska Airlines Logo
07:00 - 09:16SEA-SFO
2h 16mdirect
€120Alaska Airlines
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Sat, 4 Oct - Sun, 5 Oct
Alaska Airlines Logo
11:48 - 17:53SFO-SEA
6h 05m1 stop
Alaska Airlines Logo
19:59 - 22:14SEA-SFO
2h 15mdirect
€121Alaska Airlines
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Sat, 13 Sep - Sat, 13 Sep
Alaska Airlines Logo
06:00 - 08:07SFO-SEA
2h 07mdirect
Alaska Airlines Logo
08:08 - 10:32SEA-SFO
2h 24mdirect
€126Alaska Airlines
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Wed, 17 Sep - Mon, 22 Sep
Hawaiian Airlines Logo
19:54 - 22:15SFO-SEA
2h 21mdirect
Hawaiian Airlines Logo
07:00 - 09:16SEA-SFO
2h 16mdirect
€127Hawaiian Airlines
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Sat, 4 Oct - Mon, 6 Oct
Alaska Airlines Logo
07:00 - 09:17SFO-SEA
2h 17mdirect
Alaska Airlines Logo
11:30 - 13:54SEA-SFO
2h 24mdirect
€128Alaska Airlines
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Wed, 24 Dec - Tue, 6 Jan
Southwest Logo
07:15 - 15:15SFO-SEA
8h 00m2 stops
Southwest Logo
14:20 - 22:30SEA-SFO
8h 10m1 stop
€137Southwest
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Sat, 1 Nov - Tue, 4 Nov
Southwest Logo
07:00 - 14:10SFO-SEA
7h 10m2 stops
Southwest Logo
16:10 - 21:25SEA-SFO
5h 15m1 stop
€139Southwest
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Tue, 9 Sep - Tue, 9 Sep
Delta Logo
20:58 - 23:15SFO-SEA
2h 17mdirect
Delta Logo
10:25 - 12:45SEA-SFO
2h 20mdirect
€143Delta
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Fri, 19 Sep - Wed, 24 Sep
Delta Logo
20:58 - 23:15SFO-SEA
2h 17mdirect
Delta Logo
21:20 - 23:29SEA-SFO
2h 09mdirect
€152Delta
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Fri, 19 Sep - Mon, 22 Sep
United Airlines Logo
16:30 - 18:45SFO-SEA
2h 15mdirect
United Airlines Logo
07:00 - 09:20SEA-SFO
2h 20mdirect
€184United Airlines
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Thu, 2 Oct - Sun, 5 Oct

Alaska Airlines flights from San Francisco to Seattle

Our best Alaska Airlines deals on San Francisco to Seattle flight tickets
Alaska Airlines
4 Oct
SFO13:23San Francisco
3h 37m
1 stop
SEA17:00Seattle/Tacoma Intl
5 Oct
SEA07:00Seattle/Tacoma Intl
2h 16m
SFO09:16San Francisco
€120
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Alaska Airlines
13 Sept
SFO11:48San Francisco
6h 05m
1 stop
SEA17:53Seattle/Tacoma Intl
13 Sept
SEA19:59Seattle/Tacoma Intl
2h 15m
SFO22:14San Francisco
€121
Find similar
Alaska Airlines
17 Sept
SFO06:00San Francisco
2h 07m
SEA08:07Seattle/Tacoma Intl
22 Sept
SEA08:08Seattle/Tacoma Intl
2h 24m
SFO10:32San Francisco
€126
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Southwest flights from San Francisco to Seattle

Our best Southwest deals on San Francisco to Seattle flight tickets
Southwest
1 Nov
SFO07:15San Francisco
8h 00m
2 stops
SEA15:15Seattle/Tacoma Intl
4 Nov
SEA14:20Seattle/Tacoma Intl
8h 10m
1 stop
SFO22:30San Francisco
€137
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Southwest
9 Sept
SFO07:00San Francisco
7h 10m
2 stops
SEA14:10Seattle/Tacoma Intl
9 Sept
SEA16:10Seattle/Tacoma Intl
5h 15m
1 stop
SFO21:25San Francisco
€139
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Southwest
1 Nov
SFO07:15San Francisco
8h 40m
2 stops
SEA15:55Seattle/Tacoma Intl
4 Nov
SEA12:10Seattle/Tacoma Intl
8h 00m
2 stops
SFO20:10San Francisco
€141
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momondo Fare Finder

 
Customise your flight search to find flights from San Francisco to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 21 August 2025.
Use the filters below to find and compare flights from San Francisco to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Sat 4/10

13:23-17:00

1 stop3h 37m

Seattle/Tacoma Intl

Sun 5/10

07:00-09:16

Nonstop2h 16m

€120

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Sat 13/9

11:48-17:53

1 stop6h 05m

Seattle/Tacoma Intl

Sat 13/9

19:59-22:14

Nonstop2h 15m

€121

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Wed 17/9

06:00-08:07

Nonstop2h 07m

Seattle/Tacoma Intl

Mon 22/9

08:08-10:32

Nonstop2h 24m

€126

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Sat 4/10

19:54-22:15

Nonstop2h 21m

Seattle/Tacoma Intl

Mon 6/10

07:00-09:16

Nonstop2h 16m

€127

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Wed 24/12

07:00-09:17

Nonstop2h 17m

Seattle/Tacoma Intl

Tue 6/1

11:30-13:54

Nonstop2h 24m

€128

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Sat 1/11

07:15-15:15

2 stops8h 00m

Seattle/Tacoma Intl

Tue 4/11

14:20-22:30

1 stop8h 10m

€137

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Tue 9/9

07:00-14:10

2 stops7h 10m

Seattle/Tacoma Intl

Tue 9/9

16:10-21:25

1 stop5h 15m

€139

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Fri 19/9

20:58-23:15

Nonstop2h 17m

Seattle/Tacoma Intl

Wed 24/9

10:25-12:45

Nonstop2h 20m

€143

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Fri 19/9

20:58-23:15

Nonstop2h 17m

Seattle/Tacoma Intl

Mon 22/9

21:20-23:29

Nonstop2h 09m

€152

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Thu 2/10

16:30-18:45

Nonstop2h 15m

Seattle/Tacoma Intl

Sun 5/10

07:00-09:20

Nonstop2h 20m

€184

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

If you’re not able to fly to Seattle in October, then January is your next best option. Flight prices from San Francisco to Seattle during January average around €172.

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?

You are more likely to see cheaper flights to Seattle from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around €203 when searching weeks before you fly. 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 €129 on momondo.

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

There are 1 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.

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

As of August 2025, prices for San Francisco to Seattle flights are approximately 3% cheaper 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

Fastest flight time

2h 07m

Direct flights

Every day

Airports in Seattle

1 airport
The fastest flight from San Francisco to Seattle takes 2h 07m
Direct flights go from San Francisco to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)
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  • How far is San Francisco to Seattle/Tacoma Intl by plane?

    Seattle/Tacoma Intl is 1091.5 km away from San Francisco. Typically, this will take 2h 07m 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 are refreshed on a daily basis.

  • How old do you have to be to fly from San Francisco Airport to Seattle/Tacoma Intl 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 stopovers 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 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 you'll need for your trip to Seattle/Tacoma Intl 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 Seattle/Tacoma Intl 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 San Francisco to Seattle?

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Aberdeen
Lynnwood

Why use momondo?

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

It is quick and easy to find San Francisco to Seattle 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 Seattle that suits you.

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 offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from San Francisco to Seattle.

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

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from San Francisco and alert you when they change.

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