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Cheap flights from San Francisco to Seattle from €50

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 18/2. 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

Enter your travel dates to find the best prices.
Delta Logo
09:55 - 15:10
SFO
-
SEA
5h 15m
1 stop
Delta Logo
19:00 - 23:54
SEA
-
SFO
4h 54m
1 stop
€100Delta
Wed, 18 Feb - Wed, 25 Feb
Delta Logo
13:15 - 18:49
SFO
-
SEA
5h 34m
1 stop
Delta Logo
14:00 - 20:27
SEA
-
SFO
6h 27m
1 stop
€101Delta
Sat, 28 Feb - Mon, 2 Mar
United Airlines Logo
20:58 - 23:27
SFO
-
SEA
2h 29mdirect
United Airlines Logo
07:12 - 09:30
SEA
-
SFO
2h 18mdirect
€102United Airlines
Sat, 18 Apr - Fri, 24 Apr
Alaska Airlines Logo
14:25 - 16:42
SFO
-
SEA
2h 17mdirect
Alaska Airlines Logo
21:41 - 23:59
SEA
-
SFO
2h 18mdirect
€109Alaska Airlines
Wed, 11 Feb - Thu, 12 Feb
United Airlines Logo
22:35 - 00:59
SFO
-
SEA
2h 24mdirect
United Airlines Logo
05:05 - 07:22
SEA
-
SFO
2h 17mdirect
€109United Airlines
Tue, 10 Feb - Thu, 12 Feb
Delta Logo
06:00 - 08:16
SFO
-
SEA
2h 16mdirect
Delta Logo
07:15 - 09:37
SEA
-
SFO
2h 22mdirect
€113Delta
Thu, 9 Apr - Sat, 18 Apr
Delta Logo
05:55 - 08:13
SFO
-
SEA
2h 18mdirect
Delta Logo
07:10 - 09:30
SEA
-
SFO
2h 20mdirect
€115Delta
Sat, 21 Feb - Sun, 1 Mar
Delta Logo
10:20 - 12:38
SFO
-
SEA
2h 18mdirect
Delta Logo
17:50 - 23:04
SEA
-
SFO
5h 14m
1 stop
€117Delta
Wed, 18 Feb - Sat, 28 Feb
Alaska Airlines Logo
06:30 - 08:47
SFO
-
SEA
2h 17mdirect
Alaska Airlines Logo
21:42 - 23:59
SEA
-
SFO
2h 17mdirect
€121Alaska Airlines
Thu, 9 Apr - Mon, 13 Apr
Delta Logo
05:55 - 08:13
SFO
-
SEA
2h 18mdirect
Delta Logo
07:10 - 09:30
SEA
-
SFO
2h 20mdirect
€123Delta
Mon, 16 Feb - Sat, 21 Feb

United Airlines flights from San Francisco to Seattle

Our best United Airlines deals on San Francisco to Seattle flight tickets
United Airlines
18 Apr
SFO20:58San Francisco
2h 29m
SEA23:27Seattle/Tacoma Intl
24 Apr
SEA07:12Seattle/Tacoma Intl
2h 18m
SFO09:30San Francisco
€102
United Airlines
10 Feb
SFO22:35San Francisco
2h 24m
SEA00:59Seattle/Tacoma Intl
12 Feb
SEA05:05Seattle/Tacoma Intl
2h 17m
SFO07:22San Francisco
€109
United Airlines
18 Feb
SFO21:18San Francisco
2h 12m
SEA23:30Seattle/Tacoma Intl
22 Feb
SEA05:05Seattle/Tacoma Intl
2h 33m
SFO07:38San Francisco
€117

Delta flights from San Francisco to Seattle

Our best Delta deals on San Francisco to Seattle flight tickets
Delta
18 Feb
SFO09:55San Francisco
5h 15m
1 stop
SEA15:10Seattle/Tacoma Intl
25 Feb
SEA19:00Seattle/Tacoma Intl
4h 54m
1 stop
SFO23:54San Francisco
€100
Delta
28 Feb
SFO13:15San Francisco
5h 34m
1 stop
SEA18:49Seattle/Tacoma Intl
2 Mar
SEA14:00Seattle/Tacoma Intl
6h 27m
1 stop
SFO20:27San Francisco
€101
Delta
9 Apr
SFO06:00San Francisco
2h 16m
SEA08:16Seattle/Tacoma Intl
18 Apr
SEA07:15Seattle/Tacoma Intl
2h 22m
SFO09:37San Francisco
€113

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 January 2026.
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

Wed 18/2

09:55-15:10

1 stop5h 15m

Seattle/Tacoma Intl

Wed 25/2

19:00-23:54

1 stop4h 54m

€100

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Sat 28/2

13:15-18:49

1 stop5h 34m

Seattle/Tacoma Intl

Mon 2/3

14:00-20:27

1 stop6h 27m

€101

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Sat 18/4

20:58-23:27

Nonstop2h 29m

Seattle/Tacoma Intl

Fri 24/4

07:12-09:30

Nonstop2h 18m

€102

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Wed 11/2

14:25-16:42

Nonstop2h 17m

Seattle/Tacoma Intl

Thu 12/2

21:41-23:59

Nonstop2h 18m

€109

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Tue 10/2

22:35-00:59

Nonstop2h 24m

Seattle/Tacoma Intl

Thu 12/2

05:05-07:22

Nonstop2h 17m

€109

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Thu 9/4

06:00-08:16

Nonstop2h 16m

Seattle/Tacoma Intl

Sat 18/4

07:15-09:37

Nonstop2h 22m

€113

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Sat 21/2

05:55-08:13

Nonstop2h 18m

Seattle/Tacoma Intl

Sun 1/3

07:10-09:30

Nonstop2h 20m

€114

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Wed 18/2

10:20-12:38

Nonstop2h 18m

Seattle/Tacoma Intl

Sat 28/2

17:50-23:04

1 stop5h 14m

€117

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Thu 9/4

06:30-08:47

Nonstop2h 17m

Seattle/Tacoma Intl

Mon 13/4

21:42-23:59

Nonstop2h 17m

€121

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Mon 16/2

05:55-08:13

Nonstop2h 18m

Seattle/Tacoma Intl

Sat 21/2

07:10-09:30

Nonstop2h 20m

€123

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 cheapest month to fly to Seattle?

If you’re not able to fly to Seattle in February, then March is your next best option. Flight prices from San Francisco to Seattle during March average around €194.

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 €212 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 €150 on momondo.

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

There is only 1 cabin class 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 January 2026, prices for San Francisco to Seattle flights are approximately 14% 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 17m

Direct flights

Every day

Airports in Seattle

1 airport
The fastest flight from San Francisco to Seattle takes 2h 17m
Direct flights go from San Francisco to Seattle every day.
There is 1 airport in Seattle. From San Francisco there are direct flights to Seattle/Tacoma Intl (SEA).
Search flight deals

  • 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 17m 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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