What is the cheapest airline that flies from San Francisco to Seattle/Tacoma Intl?

Delta is the most popular carrier operating from San Francisco to Seattle/Tacoma Intl

How many flights depart from San Francisco to Seattle on average per week?

464 flights are operational weekly from San Francisco to Seattle as of December 2025. The most popular departure day for this route is Fri, with 21% of flights per week taking off on this day.

Which airline has the best punctuality record on San Francisco to Seattle flights?

According to our data, Delta have had the fewest delays on this route over the last 12 months, with about 10% of their flights experiencing any sort of delay.

How many flights depart from San Francisco to Seattle on average per day?

As of December 2025, there are 66 flights per day flying from San Francisco to Seattle. The most common time of day flights depart is 16:00, with 43% of flights taking off in the afternoon.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

What is the most punctual flight time for San Francisco to Seattle flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

How often are flights from San Francisco to Seattle delayed?

Historically, on average around 14% of flights between San Francisco and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 132 minutes.

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.

€51 Cheap Flights from San Francisco to Seattle in 2025/26

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14:35 - 23:05

SFO

SEA

8h 30m1 stop

06:05 - 14:20

SEA

SFO

8h 15m2 stops

€108Southwest

Thu, 8 Jan - Mon, 12 Jan

16:03 - 22:24

SFO

SEA

6h 21m1 stop

21:20 - 23:28

SEA

SFO

2h 08mdirect

€109Delta

Fri, 9 Jan - Fri, 16 Jan

07:57 - 14:43

SFO

SEA

6h 46m1 stop

19:45 - 21:58

SEA

SFO

2h 13mdirect

€110Hawaiian Airlines

Thu, 15 Jan - Sun, 18 Jan

08:15 - 20:20

SFO

SEA

12h 05m2 stops

06:05 - 14:20

SEA

SFO

8h 15m2 stops

€112Southwest

Thu, 8 Jan - Mon, 12 Jan

07:00 - 09:18

SFO

SEA

2h 18mdirect

15:45 - 17:59

SEA

SFO

2h 14mdirect

€113Alaska Airlines

Fri, 16 Jan - Mon, 26 Jan

09:00 - 11:21

SFO

SEA

2h 21mdirect

14:00 - 19:12

SEA

SFO

5h 12m1 stop

€115Alaska Airlines

Tue, 13 Jan - Tue, 13 Jan

15:00 - 22:35

SFO

SEA

7h 35m1 stop

06:05 - 14:20

SEA

SFO

8h 15m2 stops

€117Southwest

Fri, 9 Jan - Mon, 12 Jan

06:00 - 12:58

SFO

SEA

6h 58m1 stop

14:00 - 20:27

SEA

SFO

6h 27m1 stop

€118Delta

Fri, 27 Feb - Mon, 2 Mar

19:28 - 21:48

SFO

SEA

2h 20mdirect

17:48 - 08:46

SEA

SFO

14h 58m1 stop

€120Alaska Airlines

Sat, 14 Feb - Tue, 17 Feb

15:00 - 22:35

SFO

SEA

7h 35m1 stop

06:05 - 14:20

SEA

SFO

8h 15m2 stops

€121Southwest

Mon, 12 Jan - Sun, 18 Jan

Alaska Airlines flights from San Francisco to Seattle

Our best Alaska Airlines deals on San Francisco to Seattle flight tickets

Alaska Airlines

16 Jan

SFO07:00San Francisco

2h 18m

SEA09:18Seattle/Tacoma Intl

26 Jan

SEA15:45Seattle/Tacoma Intl

2h 14m

SFO17:59San Francisco

€113

Find similar

Alaska Airlines

13 Jan

SFO09:00San Francisco

2h 21m

SEA11:21Seattle/Tacoma Intl

13 Jan

SEA14:00Seattle/Tacoma Intl

5h 12m

1 stop

SFO19:12San Francisco

€115

Find similar

Alaska Airlines

14 Feb

SFO19:28San Francisco

2h 20m

SEA21:48Seattle/Tacoma Intl

17 Feb

SEA17:48Seattle/Tacoma Intl

14h 58m

1 stop

SFO08:46San Francisco

€120

Find similar

Southwest flights from San Francisco to Seattle

Our best Southwest deals on San Francisco to Seattle flight tickets

Southwest

8 Jan

SFO08:15San Francisco

12h 05m

2 stops

SEA20:20Seattle/Tacoma Intl

10 Jan

SEA07:00Seattle/Tacoma Intl

6h 50m

1 stop

SFO13:50San Francisco

€108

Find similar

Southwest

8 Jan

SFO08:15San Francisco

12h 05m

2 stops

SEA20:20Seattle/Tacoma Intl

12 Jan

SEA06:05Seattle/Tacoma Intl

8h 15m

2 stops

SFO14:20San Francisco

€112

Find similar

Southwest

9 Jan

SFO15:00San Francisco

7h 35m

1 stop

SEA22:35Seattle/Tacoma Intl

12 Jan

SEA06:05Seattle/Tacoma Intl

8h 15m

2 stops

SFO14:20San Francisco

€117

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Thu 8/1

14:35-23:05

1 stop8h 30m

Seattle/Tacoma Intl

Mon 12/1

06:05-14:20

2 stops8h 15m

€108

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Fri 9/1

16:03-22:24

1 stop6h 21m

Seattle/Tacoma Intl

Fri 16/1

21:20-23:28

Nonstop2h 08m

€109

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Thu 15/1

07:57-14:43

1 stop6h 46m

Seattle/Tacoma Intl

Sun 18/1

19:45-21:58

Nonstop2h 13m

€110

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Thu 8/1

08:15-20:20

2 stops12h 05m

Seattle/Tacoma Intl

Mon 12/1

06:05-14:20

2 stops8h 15m

€112

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Fri 16/1

07:00-09:18

Nonstop2h 18m

Seattle/Tacoma Intl

Mon 26/1

15:45-17:59

Nonstop2h 14m

€113

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Tue 13/1

09:00-11:21

Nonstop2h 21m

Seattle/Tacoma Intl

Tue 13/1

14:00-19:12

1 stop5h 12m

€115

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Fri 9/1

15:00-22:35

1 stop7h 35m

Seattle/Tacoma Intl

Mon 12/1

06:05-14:20

2 stops8h 15m

€117

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Fri 27/2

06:00-12:58

1 stop6h 58m

Seattle/Tacoma Intl

Mon 2/3

14:00-20:27

1 stop6h 27m

€118

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Sat 14/2

19:28-21:48

Nonstop2h 20m

Seattle/Tacoma Intl

Tue 17/2

17:48-08:46

1 stop14h 58m

€120

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Mon 12/1

15:00-22:35

1 stop7h 35m

Seattle/Tacoma Intl

Sun 18/1

06:05-14:20

2 stops8h 15m

€121

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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

Prices

Airlines

Delays

Other information

What is the cheapest month to fly to Seattle?

If you’re not able to fly to Seattle in January, then February is your next best option. Flight prices from San Francisco to Seattle during February average around €178.

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 €126 on momondo.

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

As of December 2025, prices for San Francisco to Seattle flights are approximately 21% 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 15m
Direct flights	Every day
Airports in Seattle	1 airport

The fastest flight from San Francisco to Seattle takes 2h 15m

Direct flights go from San Francisco to Seattle every day.

There is 1 airport near Seattle: 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 10m 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?
momondo data reveals that the most frequently booked plane model on the route from San Francisco to Seattle is Boeing 737-800 Passenger/BBJ2 (winglets), representing 15.38% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 10.53%, Boeing 737-900 Passenger/BBJ3 (winglets) at 10.36%, and Boeing 737 MAX 9 at 8.36%.

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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Cheap flights from San Francisco to Seattle from €51

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 1/1. 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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Alaska Airlines flights from San Francisco to Seattle

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Our best Southwest deals on San Francisco to Seattle flight tickets

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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 January, then February is your next best option. Flight prices from San Francisco to Seattle during February average around €178.

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

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

As of December 2025, prices for San Francisco to Seattle flights are approximately 21% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from San Francisco to Seattle/Tacoma Intl?

Delta is the most popular carrier operating from San Francisco to Seattle/Tacoma Intl

How often are flights from San Francisco to Seattle delayed?

Historically, on average around 14% of flights between San Francisco and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 132 minutes.

What is the most punctual flight time for San Francisco to Seattle flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on San Francisco to Seattle flights?

According to our data, Delta have had the fewest delays on this route over the last 12 months, with about 10% of their flights experiencing any sort of delay.

How many flights depart from San Francisco to Seattle on average per day?

As of December 2025, there are 66 flights per day flying from San Francisco to Seattle. The most common time of day flights depart is 16:00, with 43% of flights taking off in the afternoon.

How many flights depart from San Francisco to Seattle on average per week?

464 flights are operational weekly from San Francisco to Seattle as of December 2025. The most popular departure day for this route is Fri, with 21% of flights per week taking off on this day.

When to book flights from San Francisco to Seattle

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

Direct flights

Airports in Seattle

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

When did momondo last update prices 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?

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

What is the most popular plane model from San Francisco to Seattle?

Travelling to a place near Seattle?

Why use momondo?

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

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

How can momondo help me find flights 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?

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.

Find better results for your trip to the United States

Airports servicing Washington