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

According to our data, SWISS has had the least 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 Seattle to San Francisco on average per day?

34 flights are operational daily from Seattle to San Francisco as of October 2025. The most popular departure time for this route is 5:00p.m., with 41% of flights per day taking off in the afternoon.

Which airlines fly to San Francisco?

Alaska Airlines, Delta and United Airlines 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 73% 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.

How often are flights from Seattle to San Francisco delayed?

Historically, on average around 20% of flights between Seattle and San Francisco have experienced a delay on any given week. The average delay length over the past 12 months has been 130 minutes.

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.

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

As of October 2025, there are 241 flights per week flying from Seattle to San Francisco. The most common day of the week flights depart is Thu, with 43% of flights taking off on this day.

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

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

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

Generally, flights departing at night 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 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 October 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$ 106 Cheap Flights from Seattle to San Francisco in 2025/26

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Cheap round-trip flights

Enter your travel dates to find the best prices.

7:15 a.m. - 9:35 a.m.SEA-SFO

2h 20mdirect

6:05 a.m. - 8:26 a.m.SFO-SEA

2h 21mdirect

C$ 165Delta

Find Deal

mié., 11 feb. - lun., 23 feb.

1:30 p.m. - 3:46 p.m.SEA-SFO

2h 16mdirect

7:25 p.m. - 9:43 p.m.SFO-SEA

2h 18mdirect

C$ 169Alaska Airlines

Find Deal

jue., 4 dic. - jue., 4 dic.

4:40 p.m. - 6:56 p.m.SEA-SFO

2h 16mdirect

5:45 a.m. - 8:07 a.m.SFO-SEA

2h 22mdirect

C$ 170Delta

Find Deal

mié., 3 dic. - vie., 5 dic.

7:21 p.m. - 9:34 p.m.SEA-SFO

2h 13mdirect

7:35 a.m. - 9:52 a.m.SFO-SEA

2h 17mdirect

C$ 177Alaska Airlines

Find Deal

vie., 5 dic. - lun., 15 dic.

7:10 a.m. - 9:33 a.m.SEA-SFO

2h 23mdirect

5:45 a.m. - 8:06 a.m.SFO-SEA

2h 21mdirect

C$ 179Delta

Find Deal

jue., 4 dic. - dom., 7 dic.

7:10 a.m. - 9:33 a.m.SEA-SFO

2h 23mdirect

5:45 a.m. - 8:06 a.m.SFO-SEA

2h 21mdirect

C$ 184Delta

Find Deal

vie., 12 dic. - sáb., 3 ene.

1:37 p.m. - 9:33 a.m.SEA-SFO

19h 56m1 stop

8:00 a.m. - 10:23 a.m.SFO-SEA

2h 23mdirect

C$ 187Multiple Airlines

Find Deal

mié., 12 nov. - mié., 19 nov.

1:37 p.m. - 9:33 a.m.SEA-SFO

19h 56m1 stop

8:02 a.m. - 11:56 a.m.SFO-SEA

27h 54m1 stop

C$ 207Frontier

Find Deal

mié., 12 nov. - mié., 19 nov.

7:28 p.m. - 9:45 p.m.SEA-SFO

2h 17mdirect

10:44 p.m. - 12:59 a.m.SFO-SEA

2h 15mdirect

C$ 254United Airlines

Find Deal

mié., 12 nov. - mié., 19 nov.

9:25 p.m. - 11:43 p.m.SEA-SFO

2h 18mdirect

7:40 p.m. - 9:57 p.m.SFO-SEA

2h 17mdirect

C$ 256Hawaiian Airlines

Find Deal

sáb., 14 feb. - sáb., 21 feb.

Southwest flights from Seattle to San Francisco

Our best Southwest deals on Seattle to San Francisco flight tickets

Southwest

3 Dec

SEA5:15 a.m.Seattle/Tacoma Intl

6h 15m

1 stop

SFO11:30 a.m.San Francisco

9 Dec

SFO5:20 a.m.San Francisco

6h 35m

1 stop

SEA11:55 a.m.Seattle/Tacoma Intl

C$ 211

Find similar

Southwest

22 Nov

SEA5:15 a.m.Seattle/Tacoma Intl

9h 00m

1 stop

SFO2:15 p.m.San Francisco

6 Dec

SFO12:40 p.m.San Francisco

8h 35m

2 stops

SEA9:15 p.m.Seattle/Tacoma Intl

C$ 230

Find similar

Southwest

4 Dec

SEA12:10 p.m.Seattle/Tacoma Intl

8h 00m

2 stops

SFO8:10 p.m.San Francisco

7 Dec

SFO9:25 a.m.San Francisco

12h 05m

2 stops

SEA9:30 p.m.Seattle/Tacoma Intl

C$ 233

Find similar

United Airlines flights from Seattle to San Francisco

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

United Airlines

12 Nov

SEA7:28 p.m.Seattle/Tacoma Intl

2h 17m

SFO9:45 p.m.San Francisco

19 Nov

SFO10:44 p.m.San Francisco

2h 15m

SEA12:59 a.m.Seattle/Tacoma Intl

C$ 254

Find similar

United Airlines

11 Nov

SEA9:25 a.m.Seattle/Tacoma Intl

2h 21m

SFO11:46 a.m.San Francisco

6 Dec

SFO1:15 p.m.San Francisco

2h 14m

SEA3:29 p.m.Seattle/Tacoma Intl

C$ 359

Find similar

United Airlines

31 Oct

SEA2:40 p.m.Seattle/Tacoma Intl

2h 14m

SFO4:54 p.m.San Francisco

8 Dec

SFO1:15 p.m.San Francisco

2h 14m

SEA3:29 p.m.Seattle/Tacoma Intl

C$ 366

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

mié. 11/2

7:15 a.m.-9:35 a.m.

Nonstop2h 20m

San Francisco

lun. 23/2

6:05 a.m.-8:26 a.m.

Nonstop2h 21m

C$ 165

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

jue. 4/12

1:30 p.m.-3:46 p.m.

Nonstop2h 16m

San Francisco

jue. 4/12

7:25 p.m.-9:43 p.m.

Nonstop2h 18m

C$ 169

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

mié. 3/12

4:40 p.m.-6:56 p.m.

Nonstop2h 16m

San Francisco

vie. 5/12

5:45 a.m.-8:07 a.m.

Nonstop2h 22m

C$ 170

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

vie. 5/12

7:21 p.m.-9:34 p.m.

Nonstop2h 13m

San Francisco

lun. 15/12

7:35 a.m.-9:52 a.m.

Nonstop2h 17m

C$ 177

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

jue. 4/12

7:10 a.m.-9:33 a.m.

Nonstop2h 23m

San Francisco

dom. 7/12

5:45 a.m.-8:06 a.m.

Nonstop2h 21m

C$ 179

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

vie. 12/12

7:10 a.m.-9:33 a.m.

Nonstop2h 23m

San Francisco

sáb. 3/1

5:45 a.m.-8:06 a.m.

Nonstop2h 21m

C$ 184

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

mié. 12/11

1:37 p.m.-9:33 a.m.

1 stop19h 56m

San Francisco

mié. 19/11

8:00 a.m.-10:23 a.m.

Nonstop2h 23m

C$ 187

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

mié. 12/11

1:37 p.m.-9:33 a.m.

1 stop19h 56m

San Francisco

mié. 19/11

8:02 a.m.-11:56 a.m.

1 stop27h 54m

C$ 207

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

mié. 12/11

7:28 p.m.-9:45 p.m.

Nonstop2h 17m

San Francisco

mié. 19/11

10:44 p.m.-12:59 a.m.

Nonstop2h 15m

C$ 254

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

sáb. 14/2

9:25 p.m.-11:43 p.m.

Nonstop2h 18m

San Francisco

sáb. 21/2

7:40 p.m.-9:57 p.m.

Nonstop2h 17m

C$ 256

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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

Delays

Other information

What is the cheapest month to fly to San Francisco?

The cheapest month to fly to San Francisco from Seattle is in January. Flight prices, which tend to average around C$ 286, are often lower during this time because this is during the off-season. The month of February is another great option to travel to San Francisco, with average flight prices from Seattle averaging around C$ 303.

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$ 414. On the other hand, Monday 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$ 1,199.

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$ 540 when looking at flights departing in the evening. In contrast, the most expensive time of day to depart to San Francisco is in the afternoon when prices are around C$ 1,081.

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$ 330 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$ 216 on momondo.

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

There are 2 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 October 2025, prices for Seattle to San Francisco flights are approximately 6% cheaper 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$ 268
Fastest flight time	2h 08m
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$ 268. The best round-trip flight deal from Seattle to San Francisco found on momondo in the last 72 hours is C$ 1,015.

The fastest flight from Seattle to San Francisco takes 2h 08m

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 10m 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 October 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) (15.88% of total bookings). The next most popular plane models are Boeing 737-900 Passenger/BBJ3 (winglets) (14.80%), Boeing 737 MAX 9 (12.99%), and Boeing 737 MAX 8 (9.23%).
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 66% of the total bookings. Other popular airlines include Delta with 11%, United Airlines with 9%, and Frontier 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$ 96	Free Cancellation	Rating 7.9 7,993 reviews	Search Delta flights
Frontier	PriceFrom C$ 154	Free Cancellation	Rating 5.8 3,123 reviews	Search Frontier flights
Alaska Airlines	PriceFrom C$ 162	Free Cancellation	Rating 8.0 11,214 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom C$ 210	Free Cancellation	Rating 7.4 8,998 reviews	Search United Airlines flights
Hawaiian Airlines	PriceFrom C$ 226	Free Cancellation	Rating 7.8 2,797 reviews	Search Hawaiian Airlines flights

Alaska Airlines Flights From Seattle to San Francisco
The lowest priced Alaska Airlines flight from Seattle to San Francisco from the last 72 hours was C$ 162. Generally, Alaska Airlines has 11 flights on this route every week with an average price of C$ 266. Alaska Airlines is rated 8.0/10 by our users.
Delta Flights From Seattle to San Francisco
Another popular option for Seattle to San Francisco flights is Delta (7.9/10, 7,993 ratings). Delta flies from Seattle to San Francisco around 6 times per week, with deals starting from C$ 96 round-trip and rising to an average price of around C$ 163.

San Mateo

Belmont

Los Altos

San Bruno

Santa Cruz

Newark

Fremont

Carmel-by-the-Sea

Turlock

South San Francisco

Palo Alto

Sunnyvale

Santa Clara

Cupertino

Mill Valley

Morgan Hill

Los Banos

Mountain View

Pacifica

Woodland

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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sáb. 29/11

sáb. 6/12

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Cheap flights from Seattle to San Francisco 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 Seattle to San Francisco departing on 3/12. 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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Southwest flights from Seattle to San Francisco

Our best Southwest deals on Seattle to San Francisco flight tickets

United Airlines flights from Seattle to San Francisco

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

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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

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 2 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 October 2025, prices for Seattle to San Francisco flights are approximately 6% cheaper when compared to flights at the same time last year.

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

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

Which airlines fly to San Francisco?

How often are flights from Seattle to San Francisco delayed?

Historically, on average around 20% of flights between Seattle and San Francisco have experienced a delay on any given week. The average delay length over the past 12 months has been 130 minutes.

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

Generally, flights departing at night 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 Seattle to San Francisco flights?

According to our data, SWISS has had the least 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 Seattle to San Francisco on average per day?

34 flights are operational daily from Seattle to San Francisco as of October 2025. The most popular departure time for this route is 5:00p.m., with 41% of flights per day taking off in the afternoon.

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

As of October 2025, there are 241 flights per week flying from Seattle to San Francisco. The most common day of the week flights depart is Thu, with 43% 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

Alaska Airlines Flights From Seattle to San Francisco

Delta 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