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

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

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

80 flights are operational daily from Seattle to San Francisco as of July 2025. The most popular departure time for this route is 5:00p.m., with 45% of flights per day taking off in the afternoon.

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

As of July 2025, there are 562 flights per week flying from Seattle to San Francisco. The most common day of the week flights depart is Thu, with 23% of flights taking off on this day.

Which airlines fly to San Francisco?

Alaska Airlines, Southwest and Frontier are the top three most popular airlines that fly to San Francisco from Seattle according to our data. Alaska Airlines is the first choice among our users, with 77% of people opting to fly with this airline when travelling to San Francisco. Keep in mind that there are 6 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to San Francisco Airport?

Prices for flights from Seattle/Tacoma Intl Airport to San Francisco Airport are updated daily.

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to San Francisco Airport?

There are 5 operators available for flights from Seattle/Tacoma Intl Airport to San Francisco Airport as of July 2025.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to San Francisco 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 Seattle/Tacoma Intl Airport to San Francisco Airport.

What documentation or ID do you need to fly to San Francisco Airport?

The travel and health documents you'll need for your trip to San Francisco 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 license and a passport that is valid for six months after your intended arrival at San Francisco Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

C$ 87 Cheap Flights from Seattle to San Francisco in 2025

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Find the cheapest flights from Seattle to San Francisco

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

11:25 a.m. - 1:44 p.m.SEA-SFO

2h 19mdirect

4:52 p.m. - 7:14 p.m.SFO-SEA

2h 22mdirect

C$ 181Alaska Airlines

Find Deal

Wed, 3 Sep - Wed, 3 Sep

5:05 p.m. - 7:19 p.m.SEA-SFO

2h 14mdirect

9:19 p.m. - 11:42 p.m.SFO-SEA

2h 23mdirect

C$ 183Hawaiian Airlines

Find Deal

Tue, 26 Aug - Tue, 2 Sep

8:24 a.m. - 10:44 a.m.SEA-SFO

2h 20mdirect

11:40 a.m. - 1:59 p.m.SFO-SEA

2h 19mdirect

C$ 188Hawaiian Airlines

Find Deal

Sun, 26 Oct - Wed, 29 Oct

9:31 p.m. - 11:43 p.m.SEA-SFO

2h 12mdirect

5:55 a.m. - 8:11 a.m.SFO-SEA

2h 16mdirect

C$ 189Delta

Find Deal

Wed, 20 Aug - Wed, 17 Sep

8:08 p.m. - 10:23 p.m.SEA-SFO

2h 15mdirect

5:14 p.m. - 9:24 p.m.SFO-SEA

4h 10m1 stop

C$ 193Hawaiian Airlines

Find Deal

Tue, 26 Aug - Tue, 2 Sep

9:31 p.m. - 11:43 p.m.SEA-SFO

2h 12mdirect

5:55 a.m. - 8:05 a.m.SFO-SEA

2h 10mdirect

C$ 201Delta

Find Deal

Sat, 23 Aug - Sun, 24 Aug

9:55 a.m. - 7:50 p.m.SEA-SFO

9h 55m2 stops

4:45 p.m. - 12:05 a.m.SFO-SEA

7h 20m1 stop

C$ 223Southwest

Find Deal

Wed, 20 Aug - Tue, 26 Aug

9:55 a.m. - 7:50 p.m.SEA-SFO

9h 55m2 stops

7:00 a.m. - 2:10 p.m.SFO-SEA

7h 10m2 stops

C$ 230Southwest

Find Deal

Wed, 20 Aug - Tue, 26 Aug

3:19 p.m. - 5:35 p.m.SEA-SFO

2h 16mdirect

6:00 a.m. - 8:19 a.m.SFO-SEA

2h 19mdirect

C$ 241United Airlines

Find Deal

Mon, 25 Aug - Thu, 28 Aug

3:19 p.m. - 5:35 p.m.SEA-SFO

2h 16mdirect

8:45 p.m. - 10:59 p.m.SFO-SEA

2h 14mdirect

C$ 277United Airlines

Find Deal

Wed, 20 Aug - Fri, 22 Aug

Hawaiian Airlines flights from Seattle to San Francisco

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

Hawaiian Airlines

26 Aug

SEA5:05 p.m.Seattle/Tacoma Intl

2h 14m

SFO7:19 p.m.San Francisco

2 Sep

SFO9:19 p.m.San Francisco

2h 23m

SEA11:42 p.m.Seattle/Tacoma Intl

C$ 183

Find similar

Hawaiian Airlines

26 Oct

SEA8:24 a.m.Seattle/Tacoma Intl

2h 20m

SFO10:44 a.m.San Francisco

29 Oct

SFO11:40 a.m.San Francisco

2h 19m

SEA1:59 p.m.Seattle/Tacoma Intl

C$ 188

Find similar

Hawaiian Airlines

26 Aug

SEA8:08 p.m.Seattle/Tacoma Intl

2h 15m

SFO10:23 p.m.San Francisco

2 Sep

SFO5:14 p.m.San Francisco

4h 10m

1 stop

SEA9:24 p.m.Seattle/Tacoma Intl

C$ 193

Find similar

Southwest flights from Seattle to San Francisco

Our best Southwest deals on Seattle to San Francisco flight tickets

Southwest

20 Aug

SEA9:55 a.m.Seattle/Tacoma Intl

9h 55m

2 stops

SFO7:50 p.m.San Francisco

26 Aug

SFO4:45 p.m.San Francisco

7h 20m

1 stop

SEA12:05 a.m.Seattle/Tacoma Intl

C$ 223

Find similar

Southwest

20 Aug

SEA9:55 a.m.Seattle/Tacoma Intl

9h 55m

2 stops

SFO7:50 p.m.San Francisco

26 Aug

SFO7:00 a.m.San Francisco

7h 10m

2 stops

SEA2:10 p.m.Seattle/Tacoma Intl

C$ 230

Find similar

Southwest

20 Aug

SEA4:10 p.m.Seattle/Tacoma Intl

5h 15m

1 stop

SFO9:25 p.m.San Francisco

27 Aug

SFO7:00 a.m.San Francisco

11h 10m

2 stops

SEA6:10 p.m.Seattle/Tacoma Intl

C$ 232

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Wed 3/9

11:25 a.m.-1:44 p.m.

Nonstop2h 19m

San Francisco

Wed 3/9

4:52 p.m.-7:14 p.m.

Nonstop2h 22m

C$ 181

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 26/8

5:05 p.m.-7:19 p.m.

Nonstop2h 14m

San Francisco

Tue 2/9

9:19 p.m.-11:42 p.m.

Nonstop2h 23m

C$ 183

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sun 26/10

8:24 a.m.-10:44 a.m.

Nonstop2h 20m

San Francisco

Wed 29/10

11:40 a.m.-1:59 p.m.

Nonstop2h 19m

C$ 188

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Wed 20/8

9:31 p.m.-11:43 p.m.

Nonstop2h 12m

San Francisco

Wed 17/9

5:55 a.m.-8:11 a.m.

Nonstop2h 16m

C$ 189

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 26/8

8:08 p.m.-10:23 p.m.

Nonstop2h 15m

San Francisco

Tue 2/9

5:14 p.m.-9:24 p.m.

1 stop4h 10m

C$ 193

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sat 23/8

9:31 p.m.-11:43 p.m.

Nonstop2h 12m

San Francisco

Sun 24/8

5:55 a.m.-8:05 a.m.

Nonstop2h 10m

C$ 201

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Wed 20/8

9:55 a.m.-7:50 p.m.

2 stops9h 55m

San Francisco

Tue 26/8

4:45 p.m.-12:05 a.m.

1 stop7h 20m

C$ 223

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Wed 20/8

9:55 a.m.-7:50 p.m.

2 stops9h 55m

San Francisco

Tue 26/8

7:00 a.m.-2:10 p.m.

2 stops7h 10m

C$ 230

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Mon 25/8

3:19 p.m.-5:35 p.m.

Nonstop2h 16m

San Francisco

Thu 28/8

6:00 a.m.-8:19 a.m.

Nonstop2h 19m

C$ 241

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Wed 20/8

3:19 p.m.-5:35 p.m.

Nonstop2h 16m

San Francisco

Fri 22/8

8:45 p.m.-10:59 p.m.

Nonstop2h 14m

C$ 277

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How to get the cheapest flight ticket from Seattle to San Francisco

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

Other information

What is the cheapest month to fly to San Francisco?

The cheapest month to fly to San Francisco from Seattle is in September. Flight prices, which tend to average around C$ 276, are often lower during this time because this is during the off-season. The month of January is another great option to travel to San Francisco, with average flight prices from Seattle averaging around C$ 284.

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart from Seattle to San Francisco is on a Friday. Travellers who choose to depart for San Francisco on a Friday will often find tickets for as low as C$ 432. On the other hand, Tuesday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 1,264.

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

Flying to San Francisco from Seattle in the evening is the least expensive time of day to depart. momondo users have found prices as low as C$ 525 when looking at flights departing in the evening. In contrast, the most expensive time of day to depart to San Francisco is in the morning when prices are around C$ 1,267.

What is the cheapest Seattle/Tacoma Intl to San Francisco flight route?

Fly from Seattle/Tacoma Intl to San Francisco for the best Seattle/Tacoma Intl - San Francisco flight prices

How far in advance should I book a flight to San Francisco?

You are more likely to see cheaper flights to San Francisco from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around C$ 320 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Seattle for as low as C$ 223 on momondo.

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

There are 3 cabin classes available to choose from on Seattle/Tacoma Intl to San Francisco 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 Seattle to San Francisco flights?

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

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

As of July 2025, prices for Seattle to San Francisco flights are approximately 6% more expensive when compared to flights at the same time last year.

When to book flights from Seattle to San Francisco

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to San Francisco according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Seattle to San Francisco (SEA to SFO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to San Francisco

Best price found	C$ 87
Fastest flight time	2h 09m
Direct flights	Every day
Airports in San Francisco	1 airport

The best one-way flight to San Francisco from Seattle in the past 72 hours is C$ 87. The best round-trip flight deal from Seattle to San Francisco found on momondo in the last 72 hours is C$ 181.

The fastest flight from Seattle to San Francisco takes 2h 09m

Direct flights go from Seattle to San Francisco every day.

There is 1 airport near San Francisco: San Francisco (SFO)

Search flight deals

How far is Seattle/Tacoma Intl to San Francisco by plane?
The straight-line distance from Seattle/Tacoma Intl to San Francisco is 1091.5 km. Typically, this will take 2h 09m by plane in normal conditions.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to San Francisco Airport?
Prices for flights from Seattle/Tacoma Intl Airport to San Francisco Airport are updated daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to San Francisco Airport?
There are 5 operators available for flights from Seattle/Tacoma Intl Airport to San Francisco Airport as of July 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to San Francisco 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 Seattle/Tacoma Intl Airport to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The travel and health documents you'll need for your trip to San Francisco 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 license and a passport that is valid for six months after your intended arrival at San Francisco 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 Seattle to San Francisco?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Seattle to San Francisco is Boeing 737-800 Passenger/BBJ2 (winglets) (23.03% of total bookings). The next most popular plane models are Boeing 737-900 Passenger/BBJ3 (winglets) (17.50%), Boeing 737 (9.96%), and Boeing 737-900 (9.51%).
What is the most popular airline from Seattle to San Francisco?
Based on momondo bookings for flights between Seattle and San Francisco, the leading airline is Alaska Airlines, making up 71% of the total bookings. Other popular airlines include Frontier with 8%, United Airlines with 8%, and Delta with 8%.

Best airlines flying from Seattle to San Francisco

Compare and see reviews for airlines that fly from Seattle to San Francisco with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom C$ 95	Free Cancellation	Rating 8.0 7,981 reviews	Search Delta flights
Frontier	PriceFrom C$ 153	Free Cancellation	Rating 5.9 3,239 reviews	Search Frontier flights
Alaska Airlines	PriceFrom C$ 160	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom C$ 207	Free Cancellation	Rating 7.4 8,900 reviews	Search United Airlines flights
Hawaiian Airlines	PriceFrom C$ 224	Free Cancellation	Rating 7.8 2,611 reviews	Search Hawaiian Airlines flights

Delta Flights From Seattle to San Francisco
The lowest priced Delta flight from Seattle to San Francisco from the last 72 hours was C$ 69. Generally, Delta has 10 flights on this route every week with an average price of C$ 152. Delta is rated 8.0/10 by our users.
Alaska Airlines Flights From Seattle to San Francisco
Another popular option for Seattle to San Francisco flights is Alaska Airlines (8.0/10, 10,000 ratings). Alaska Airlines flies from Seattle to San Francisco around 27 times per week, with deals starting from C$ 116 round-trip and rising to an average price of around C$ 185.

San Mateo

Belmont

Los Altos

South San Francisco

Newark

San Bruno

Santa Cruz

Sunnyvale

Fremont

Turlock

Mountain View

Half Moon Bay

Mill Valley

Cupertino

Los Banos

Palo Alto

Pacifica

Carmel Valley

Berkeley

Roseville

Why use momondo?

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

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

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

momondo does allow users to show only those flights to San Francisco from Seattle which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Seattle to San Francisco flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for Seattle to San Francisco flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your San Francisco 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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Cheap flights from Seattle to San Francisco from C$ 87

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to San Francisco departing on 23/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

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Filter for what you want

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Cheap round-trip flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

Hawaiian Airlines flights from Seattle to San Francisco

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

Southwest flights from Seattle to San Francisco

Our best Southwest deals on Seattle to San Francisco flight tickets

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See travel insights to San Francisco from

How to get the cheapest flight ticket from Seattle to San Francisco

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 San Francisco?

What is the cheapest day to depart on your flight to San Francisco?

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

What is the cheapest Seattle/Tacoma Intl to San Francisco flight route?

Fly from Seattle/Tacoma Intl to San Francisco for the best Seattle/Tacoma Intl - San Francisco flight prices

How far in advance should I book a flight to San Francisco?

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

There are 3 cabin classes available to choose from on Seattle/Tacoma Intl to San Francisco 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 Seattle to San Francisco flights?

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

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

As of July 2025, prices for Seattle to San Francisco flights are approximately 6% more expensive when compared to flights at the same time last year.

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

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

Which airlines fly to San Francisco?

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

80 flights are operational daily from Seattle to San Francisco as of July 2025. The most popular departure time for this route is 5:00p.m., with 45% of flights per day taking off in the afternoon.

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

As of July 2025, there are 562 flights per week flying from Seattle to San Francisco. The most common day of the week flights depart is Thu, with 23% of flights taking off on this day.

When to book flights from Seattle to San Francisco

Cheap Seattle to San Francisco (SEA to SFO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to San Francisco

Best price found

Fastest flight time

Direct flights

Airports in San Francisco

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

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to San Francisco Airport?

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to San Francisco Airport?

How old do you have to be to fly from Seattle/Tacoma Intl Airport to San Francisco Airport?

What documentation or ID do you need to fly to San Francisco Airport?

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

What is the most popular airline from Seattle to San Francisco?

Best airlines flying from Seattle to San Francisco

Compare and see reviews for airlines that fly from Seattle to San Francisco with momondo

Delta Flights From Seattle to San Francisco

Alaska Airlines Flights From Seattle to San Francisco

Travelling to a place near San Francisco?

Why use momondo?

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

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

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

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

An easier way to manage your San Francisco 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.

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 California