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Cheap flights from San Francisco to Seattle from C$ 106

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 11/11. 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 round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
5:50 a.m. - 1:00 p.m.SFO-SEA
7h 10m1 stop
Delta Logo
12:40 p.m. - 5:38 p.m.SEA-SFO
4h 58m1 stop
C$ 192Delta
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Thu, 6 Nov - Mon, 10 Nov
Delta Logo
5:50 a.m. - 1:00 p.m.SFO-SEA
7h 10m1 stop
Delta Logo
2:11 p.m. - 8:26 p.m.SEA-SFO
6h 15m1 stop
C$ 193Delta
Find Deal
Thu, 6 Nov - Mon, 10 Nov
Delta Logo
3:35 p.m. - 8:56 p.m.SFO-SEA
5h 21m1 stop
Delta Logo
5:00 p.m. - 10:03 p.m.SEA-SFO
5h 03m1 stop
C$ 206Delta
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Tue, 18 Nov - Mon, 24 Nov
Southwest Logo
3:45 p.m. - 12:05 a.m.SFO-SEA
8h 20m1 stop
Southwest Logo
5:35 a.m. - 2:05 p.m.SEA-SFO
8h 30m1 stop
C$ 212Southwest
Find Deal
Fri, 12 Dec - Sun, 14 Dec
Southwest Logo
3:45 p.m. - 12:05 a.m.SFO-SEA
8h 20m1 stop
Southwest Logo
1:20 p.m. - 9:20 p.m.SEA-SFO
8h 00m1 stop
C$ 216Southwest
Find Deal
Mon, 5 Jan - Wed, 14 Jan
Alaska Airlines Logo
6:00 a.m. - 1:02 p.m.SFO-SEA
7h 02m1 stop
Alaska Airlines Logo
5:20 a.m. - 8:55 a.m.SEA-SFO
3h 35m1 stop
C$ 233Alaska Airlines
Find Deal
Thu, 13 Nov - Sun, 16 Nov
Alaska Airlines Logo
6:00 a.m. - 8:15 a.m.SFO-SEA
2h 15mdirect
Alaska Airlines Logo
7:50 p.m. - 8:37 a.m.SEA-SFO
12h 47m1 stop
C$ 238Alaska Airlines
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Fri, 13 Feb - Mon, 16 Feb
United Airlines Logo
9:00 p.m. - 11:15 p.m.SFO-SEA
2h 15mdirect
United Airlines Logo
3:37 p.m. - 5:50 p.m.SEA-SFO
2h 13mdirect
C$ 241United Airlines
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Thu, 30 Oct - Tue, 4 Nov
Frontier Logo
6:00 a.m. - 1:41 p.m.SFO-SEA
7h 41m1 stop
Frontier Logo
2:36 p.m. - 9:08 p.m.SEA-SFO
6h 32m1 stop
C$ 261Frontier
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Fri, 19 Dec - Tue, 6 Jan
United Airlines Logo
10:48 p.m. - 12:59 a.m.SFO-SEA
2h 11mdirect
United Airlines Logo
12:35 p.m. - 2:53 p.m.SEA-SFO
2h 18mdirect
C$ 262United Airlines
Find Deal
Mon, 22 Dec - Thu, 25 Dec

Delta flights from San Francisco to Seattle

Our best Delta deals on San Francisco to Seattle flight tickets
Delta
6 Nov
SFO5:50 a.m.San Francisco
7h 10m
1 stop
SEA1:00 p.m.Seattle/Tacoma Intl
10 Nov
SEA12:40 p.m.Seattle/Tacoma Intl
4h 58m
1 stop
SFO5:38 p.m.San Francisco
C$ 192
Find similar
Delta
6 Nov
SFO5:50 a.m.San Francisco
7h 10m
1 stop
SEA1:00 p.m.Seattle/Tacoma Intl
10 Nov
SEA2:11 p.m.Seattle/Tacoma Intl
6h 15m
1 stop
SFO8:26 p.m.San Francisco
C$ 193
Find similar
Delta
18 Nov
SFO3:35 p.m.San Francisco
5h 21m
1 stop
SEA8:56 p.m.Seattle/Tacoma Intl
24 Nov
SEA5:00 p.m.Seattle/Tacoma Intl
5h 03m
1 stop
SFO10:03 p.m.San Francisco
C$ 206
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Southwest flights from San Francisco to Seattle

Our best Southwest deals on San Francisco to Seattle flight tickets
Southwest
12 Dec
SFO3:45 p.m.San Francisco
8h 20m
1 stop
SEA12:05 a.m.Seattle/Tacoma Intl
14 Dec
SEA5:35 a.m.Seattle/Tacoma Intl
8h 30m
1 stop
SFO2:05 p.m.San Francisco
C$ 212
Find similar
Southwest
5 Jan
SFO3:45 p.m.San Francisco
8h 20m
1 stop
SEA12:05 a.m.Seattle/Tacoma Intl
14 Jan
SEA1:20 p.m.Seattle/Tacoma Intl
8h 00m
1 stop
SFO9:20 p.m.San Francisco
C$ 216
Find similar
Southwest
4 Dec
SFO7:30 a.m.San Francisco
9h 00m
2 stops
SEA4:30 p.m.Seattle/Tacoma Intl
7 Dec
SEA5:35 a.m.Seattle/Tacoma Intl
8h 30m
1 stop
SFO2:05 p.m.San Francisco
C$ 219
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momondo Fare Finder

 
Customize 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 96,600 searches. Data last updated 14 October 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

Thu 6/11

5:50 a.m.-1:00 p.m.

1 stop7h 10m

Seattle/Tacoma Intl

Mon 10/11

12:40 p.m.-5:38 p.m.

1 stop4h 58m

C$ 192

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Thu 6/11

5:50 a.m.-1:00 p.m.

1 stop7h 10m

Seattle/Tacoma Intl

Mon 10/11

2:11 p.m.-8:26 p.m.

1 stop6h 15m

C$ 193

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Tue 18/11

3:35 p.m.-8:56 p.m.

1 stop5h 21m

Seattle/Tacoma Intl

Mon 24/11

5:00 p.m.-10:03 p.m.

1 stop5h 03m

C$ 206

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Fri 12/12

3:45 p.m.-12:05 a.m.

1 stop8h 20m

Seattle/Tacoma Intl

Sun 14/12

5:35 a.m.-2:05 p.m.

1 stop8h 30m

C$ 212

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Mon 5/1

3:45 p.m.-12:05 a.m.

1 stop8h 20m

Seattle/Tacoma Intl

Wed 14/1

1:20 p.m.-9:20 p.m.

1 stop8h 00m

C$ 216

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Thu 13/11

6:00 a.m.-1:02 p.m.

1 stop7h 02m

Seattle/Tacoma Intl

Sun 16/11

5:20 a.m.-8:55 a.m.

1 stop3h 35m

C$ 233

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Fri 13/2

6:00 a.m.-8:15 a.m.

Nonstop2h 15m

Seattle/Tacoma Intl

Mon 16/2

7:50 p.m.-8:37 a.m.

1 stop12h 47m

C$ 238

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Thu 30/10

9:00 p.m.-11:15 p.m.

Nonstop2h 15m

Seattle/Tacoma Intl

Tue 4/11

3:37 p.m.-5:50 p.m.

Nonstop2h 13m

C$ 241

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Fri 19/12

6:00 a.m.-1:41 p.m.

1 stop7h 41m

Seattle/Tacoma Intl

Tue 6/1

2:36 p.m.-9:08 p.m.

1 stop6h 32m

C$ 261

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Mon 22/12

10:48 p.m.-12:59 a.m.

Nonstop2h 11m

Seattle/Tacoma Intl

Thu 25/12

12:35 p.m.-2:53 p.m.

Nonstop2h 18m

C$ 262

Flights are sorted by cheapest round-trip 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 aren’t able to travel to Seattle during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of C$ 303.

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

Our data shows that Tuesday is the least expensive day to fly to Seattle. Tickets to fly out on this day can be as low as C$ 205. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around C$ 591. These prices are subject to change though, so be sure to set up a Price Alert for flights to Seattle.

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

Our most recent data shows that the best time of day to fly to Seattle is at noon. Flights from San Francisco to Seattle during this time can be as low as C$ 187. Flights in the afternoon are often more expensive with an average ticket price of C$ 582.

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 C$ 342 when searching weeks out. 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 C$ 213 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?

No. A direct flight is the cheapest option for a flight between San Francisco to Seattle.

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

As of October 2025, prices for San Francisco to Seattle flights are approximately 2% 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 round-trip 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

C$ 237

Fastest flight time

2h 10m

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 C$ 237. The best round-trip flight deal from San Francisco to Seattle found on momondo in the last 72 hours is C$ 124.
The fastest flight from San Francisco to Seattle takes 2h 10m
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?

    San Francisco and Seattle/Tacoma Intl are 1091.5 km apart from one another. In terms of flight time, this usually takes a little over 2h 11m.

  • 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 updated daily.

  • 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?

    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 layovers. It is recommended that you verify 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 necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • 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 C$ 156Free CancellationRating
8.0
11,080 reviews
Search Alaska Airlines flights

  • Alaska Airlines Flights From San Francisco to Seattle

    The lowest priced Alaska Airlines flight from San Francisco to Seattle from the last 72 hours was C$ 111. Generally, Alaska Airlines has 12 flights on this route every week with an average price of C$ 207. Alaska Airlines is rated 8.0/10 by our users.

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
Lynnwood
Marysville
Tacoma
SeaTac
Kirkland
Redmond
Olympia
Ocean Shores
Shoreline
Ellensburg
Gig Harbor
Renton
Mukilteo
Cle Elum
Federal Way
Poulsbo
Puyallup
Shelton
Lakewood

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?

All flight searches from San Francisco to Seattle on momondo can be filtered to show those which offer flexible booking policies.

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 not ready to book a flight from San Francisco to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.

An easier way to manage your Seattle trip

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