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 9% of their flights experiencing any sort of delay.

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 131 minutes.

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

As of November 2025, 551 flights take off from San Francisco and land in Seattle each week. The most common flight departure day for this route is Thu, with 18% of weekly flights taking off on this day.

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

Delta, Southwest, and Alaska Airlines are the most popular carriers operating from San Francisco to Seattle/Tacoma Intl

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

As of November 2025, 78 flights take off from San Francisco and land in Seattle each day. The most common flight departure time for this route is 16:00, with 36% of daily flights taking off in the afternoon.

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.

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?

There is 1 operator available for flights from San Francisco Airport to Seattle/Tacoma Intl Airport as of November 2025.

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.

$105 Cheap Flights from San Francisco to Seattle in 2025/26

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13:20 - 18:37SFO-SEA

5h 17m1 stop

07:10 - 09:33SEA-SFO

2h 23mdirect

$195Delta

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Thu, 4 Dec - Sun, 7 Dec

20:47 - 23:07SFO-SEA

2h 20mdirect

08:15 - 10:37SEA-SFO

2h 22mdirect

$201Alaska Airlines

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Sat, 14 Feb - Tue, 17 Feb

05:00 - 00:30SFO-SEA

19h 30m1 stop

05:15 - 11:50SEA-SFO

6h 35m1 stop

$208Southwest

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Mon, 5 Jan - Tue, 6 Jan

09:59 - 14:59SFO-SEA

5h 00m1 stop

07:10 - 14:36SEA-SFO

7h 26m1 stop

$209Delta

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Thu, 4 Dec - Mon, 8 Dec

10:40 - 17:11SFO-SEA

6h 31m1 stop

12:45 - 17:40SEA-SFO

4h 55m1 stop

$211Delta

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Thu, 4 Dec - Mon, 8 Dec

07:35 - 09:52SFO-SEA

2h 17mdirect

08:25 - 12:29SEA-SFO

4h 04m1 stop

$217Alaska Airlines

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Wed, 3 Dec - Wed, 10 Dec

07:35 - 09:52SFO-SEA

2h 17mdirect

12:30 - 20:15SEA-SFO

7h 45m1 stop

$223Alaska Airlines

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Thu, 4 Dec - Thu, 4 Dec

20:47 - 23:07SFO-SEA

2h 20mdirect

16:31 - 08:46SEA-SFO

16h 15m1 stop

$229Alaska Airlines

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Sat, 14 Feb - Tue, 17 Feb

14:35 - 22:30SFO-SEA

7h 55m1 stop

10:15 - 16:35SEA-SFO

6h 20m1 stop

$230Southwest

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Wed, 3 Dec - Sat, 6 Dec

18:56 - 22:33SFO-SEA

3h 37m1 stop

19:41 - 21:55SEA-SFO

2h 14mdirect

$232Alaska Airlines

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Mon, 9 Feb - Sun, 15 Feb

Alaska Airlines flights from San Francisco to Seattle

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

Alaska Airlines

14 Feb

SFO20:47San Francisco

2h 20m

SEA23:07Seattle/Tacoma Intl

17 Feb

SEA08:15Seattle/Tacoma Intl

2h 22m

SFO10:37San Francisco

$201

Find similar

Alaska Airlines

3 Dec

SFO07:35San Francisco

2h 17m

SEA09:52Seattle/Tacoma Intl

10 Dec

SEA08:25Seattle/Tacoma Intl

4h 04m

1 stop

SFO12:29San Francisco

$217

Find similar

Alaska Airlines

4 Dec

SFO07:35San Francisco

2h 17m

SEA09:52Seattle/Tacoma Intl

4 Dec

SEA12:30Seattle/Tacoma Intl

7h 45m

1 stop

SFO20:15San Francisco

$223

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United Airlines flights from San Francisco to Seattle

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

United Airlines

20 Dec

SFO22:48San Francisco

2h 11m

SEA00:59Seattle/Tacoma Intl

24 Dec

SEA07:05Seattle/Tacoma Intl

2h 24m

SFO09:29San Francisco

$259

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United Airlines

27 Dec

SFO22:48San Francisco

2h 11m

SEA00:59Seattle/Tacoma Intl

1 Jan

SEA07:05Seattle/Tacoma Intl

2h 24m

SFO09:29San Francisco

$266

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United Airlines

13 Dec

SFO21:00San Francisco

2h 15m

SEA23:15Seattle/Tacoma Intl

3 Jan

SEA07:05Seattle/Tacoma Intl

2h 24m

SFO09:29San Francisco

$311

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Fly from

Fly to

Route

Depart

Return

Price

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Thu 4/12

13:20-18:37

1 stop5h 17m

Seattle/Tacoma Intl

Sun 7/12

07:10-09:33

Nonstop2h 23m

$195

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Sat 14/2

20:47-23:07

Nonstop2h 20m

Seattle/Tacoma Intl

Tue 17/2

08:15-10:37

Nonstop2h 22m

$201

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Mon 5/1

05:00-00:30

1 stop19h 30m

Seattle/Tacoma Intl

Tue 6/1

05:15-11:50

1 stop6h 35m

$208

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Thu 4/12

09:59-14:59

1 stop5h 00m

Seattle/Tacoma Intl

Mon 8/12

07:10-14:36

1 stop7h 26m

$209

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Thu 4/12

10:40-17:11

1 stop6h 31m

Seattle/Tacoma Intl

Mon 8/12

12:45-17:40

1 stop4h 55m

$211

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Wed 3/12

07:35-09:52

Nonstop2h 17m

Seattle/Tacoma Intl

Wed 10/12

08:25-12:29

1 stop4h 04m

$217

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Thu 4/12

07:35-09:52

Nonstop2h 17m

Seattle/Tacoma Intl

Thu 4/12

12:30-20:15

1 stop7h 45m

$223

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Sat 14/2

20:47-23:07

Nonstop2h 20m

Seattle/Tacoma Intl

Tue 17/2

16:31-08:46

1 stop16h 15m

$229

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Wed 3/12

14:35-22:30

1 stop7h 55m

Seattle/Tacoma Intl

Sat 6/12

10:15-16:35

1 stop6h 20m

$230

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Mon 9/2

18:56-22:33

1 stop3h 37m

Seattle/Tacoma Intl

Sun 15/2

19:41-21:55

Nonstop2h 14m

$232

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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?

The month of January is, on average, the cheapest month to fly to Seattle from San Francisco, with most prices found around $296. If you are unable to visit Seattle during the month of January, then departing from San Francisco during the month February is also very affordable. Most momondo users find prices during this month for around $316.

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

The cheapest day to depart from San Francisco to Seattle is on a Thursday. Travellers who choose to depart for Seattle on a Thursday will often find tickets for as low as $224. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from San Francisco to Seattle for around $747.

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

According to our data, the cheapest time of day to fly to Seattle is in the afternoon. momondo users have found flights departing from San Francisco to Seattle in the afternoon for as low as $291. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Seattle is at midday when prices are around $747.

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 $376 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 $224 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.

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

As of November 2025, prices for San Francisco to Seattle flights are approximately 2% 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 10m
Direct flights	Every day
Airports in Seattle	1 airport

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?
There are 1091.5 km between San Francisco and Seattle/Tacoma Intl. In terms of flight time, this usually takes a little over 2h 10m.
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?
There is 1 operator available for flights from San Francisco Airport to Seattle/Tacoma Intl Airport as of November 2025.
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?
Based on momondo bookings for flights between San Francisco and Seattle, the leading plane model is Boeing 737-800 Passenger/BBJ2 (winglets), making up 15.35% of the total bookings. Other popular models include Boeing 737-900 Passenger/BBJ3 (winglets) with 14.62%, Boeing 737 MAX 9 with 11.12%, and Boeing 737 MAX 8 with 9.41%.
What is the most popular airline from San Francisco to Seattle?
Based on momondo bookings for this flight route, the most popular airline on flight routes from San Francisco to Seattle is Alaska Airlines (100% of total bookings).

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 Airlines	PriceFrom $162	Free cancellation	Rating 8.0 11,288 reviews		Search Alaska Airlines flights

Alaska Airlines Flights From San Francisco to Seattle
Across 9 Alaska Airlines flights from San Francisco to Seattle this week, the average price was $266, with the best Alaska Airlines deals starting from $162 round-trip. 11,288 users have rated Alaska Airlines on momondo, with an average score of 8.0/10.

Leavenworth

SeaTac

Why use momondo?

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

Finding the right flight to Seattle from San Francisco is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seattle quick and easy, saving you time and money.

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

Yes. All flights to Seattle from San Francisco on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from San Francisco to Seattle?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seattle from San Francisco.

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.

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Cheap flights from San Francisco to Seattle from $105

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 9/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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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

What is the cheapest month to fly to Seattle?

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

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

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?

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.

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

As of November 2025, prices for San Francisco to Seattle flights are approximately 2% 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, Southwest, and Alaska Airlines are the most popular carriers 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 131 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 9% of their flights experiencing any sort of delay.

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

As of November 2025, 78 flights take off from San Francisco and land in Seattle each day. The most common flight departure time for this route is 16:00, with 36% of daily flights taking off in the afternoon.

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

As of November 2025, 551 flights take off from San Francisco and land in Seattle each week. The most common flight departure day for this route is Thu, with 18% of weekly flights 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 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?

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?

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

Alaska Airlines Flights 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