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Cheap flights from Seattle to San Francisco from $62

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 1/10. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:10 pm - 7:28 pm
SEA
-
SFO
2h 18mnonstop
United Airlines Logo
10:35 pm - 12:59 am
SFO
-
SEA
2h 24mnonstop
$117United Airlines
mar., ene. 6 - vie., ene. 16
Delta Logo
9:20 pm - 11:28 pm
SEA
-
SFO
2h 08mnonstop
Delta Logo
2:39 pm - 4:58 pm
SFO
-
SEA
2h 19mnonstop
$118Delta
jue., ene. 15 - dom., ene. 18
Alaska Airlines Logo
9:35 pm - 11:54 pm
SEA
-
SFO
2h 19mnonstop
Alaska Airlines Logo
7:40 pm - 9:58 pm
SFO
-
SEA
2h 18mnonstop
$119Alaska Airlines
mar., ene. 6 - sáb., ene. 10
Hawaiian Airlines Logo
3:45 pm - 5:59 pm
SEA
-
SFO
2h 14mnonstop
Hawaiian Airlines Logo
6:18 pm - 8:34 pm
SFO
-
SEA
2h 16mnonstop
$122Hawaiian Airlines
mar., ene. 20 - mar., ene. 27
Multiple Airlines Logo
10:51 am - 5:00 pm
SEA
-
SFO
6h 09m1 stop
Multiple Airlines Logo
7:00 am - 9:18 am
SFO
-
SEA
2h 18mnonstop
$124Multiple Airlines
vie., ene. 23 - jue., ene. 29
Hawaiian Airlines Logo
8:25 am - 12:23 pm
SEA
-
SFO
3h 58m1 stop
Hawaiian Airlines Logo
7:00 am - 9:18 am
SFO
-
SEA
2h 18mnonstop
$126Hawaiian Airlines
jue., ene. 8 - dom., ene. 11
Delta Logo
6:05 pm - 10:55 pm
SEA
-
SFO
4h 50m1 stop
Delta Logo
2:39 pm - 4:58 pm
SFO
-
SEA
2h 19mnonstop
$127Delta
jue., ene. 8 - vie., ene. 9
Multiple Airlines Logo
10:51 am - 5:00 pm
SEA
-
SFO
6h 09m1 stop
Multiple Airlines Logo
6:00 am - 8:18 am
SFO
-
SEA
2h 18mnonstop
$128Multiple Airlines
vie., ene. 23 - dom., ene. 25
United Airlines Logo
9:19 am - 11:38 am
SEA
-
SFO
2h 19mnonstop
United Airlines Logo
10:37 pm - 12:59 am
SFO
-
SEA
2h 22mnonstop
$129United Airlines
sáb., feb. 14 - sáb., feb. 21
Alaska Airlines Logo
8:25 am - 12:23 pm
SEA
-
SFO
3h 58m1 stop
Alaska Airlines Logo
9:00 am - 11:21 am
SFO
-
SEA
2h 21mnonstop
$130Alaska Airlines
jue., ene. 8 - lun., ene. 12

United Airlines flights from Seattle to San Francisco

Our best United Airlines deals on Seattle to San Francisco flight tickets
United Airlines
Feb 14
SEA9:19 amSeattle/Tacoma Intl
2h 19m
SFO11:38 amSan Francisco
Feb 21
SFO10:37 pmSan Francisco
2h 22m
SEA12:59 amSeattle/Tacoma Intl
$129
Find similar
United Airlines
Jan 3
SEA7:05 amSeattle/Tacoma Intl
2h 24m
SFO9:29 amSan Francisco
Jan 6
SFO10:35 pmSan Francisco
2h 24m
SEA12:59 amSeattle/Tacoma Intl
$180
Find similar
United Airlines
Dec 13
SEA1:05 pmSeattle/Tacoma Intl
2h 17m
SFO3:22 pmSan Francisco
Dec 31
SFO10:48 pmSan Francisco
2h 11m
SEA12:59 amSeattle/Tacoma Intl
$377
Find similar

Frontier flights from Seattle to San Francisco

Our best Frontier deals on Seattle to San Francisco flight tickets
Frontier
Jan 23
SEA10:51 amSeattle/Tacoma Intl
6h 09m
1 stop
SFO5:00 pmSan Francisco
Jan 28
SFO2:08 pmSan Francisco
19h 28m
1 stop
SEA9:36 amSeattle/Tacoma Intl
$134
Find similar
Frontier
Jan 22
SEA9:25 pmSeattle/Tacoma Intl
19h 35m
1 stop
SFO5:00 pmSan Francisco
Jan 25
SFO6:15 amSan Francisco
29h 04m
1 stop
SEA11:19 amSeattle/Tacoma Intl
$139
Find similar
Frontier
Jan 23
SEA12:34 pmSeattle/Tacoma Intl
11h 54m
1 stop
SFO12:28 amSan Francisco
Jan 29
SFO8:23 pmSan Francisco
13h 13m
1 stop
SEA9:36 amSeattle/Tacoma Intl
$140
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to San Francisco 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 832,500 searches. Data last updated diciembre 8, 2025.
Use the filters below to find and compare flights from Seattle to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

mar. 1/6

5:10 pm-7:28 pm

Nonstop2h 18m

San Francisco

vie. 1/16

10:35 pm-12:59 am

Nonstop2h 24m

$117

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

jue. 1/15

9:20 pm-11:28 pm

Nonstop2h 08m

San Francisco

dom. 1/18

2:39 pm-4:58 pm

Nonstop2h 19m

$118

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

mar. 1/6

9:35 pm-11:54 pm

Nonstop2h 19m

San Francisco

sáb. 1/10

7:40 pm-9:58 pm

Nonstop2h 18m

$119

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

mar. 1/20

3:45 pm-5:59 pm

Nonstop2h 14m

San Francisco

mar. 1/27

6:18 pm-8:34 pm

Nonstop2h 16m

$122

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

vie. 1/23

10:51 am-5:00 pm

1 stop6h 09m

San Francisco

jue. 1/29

7:00 am-9:18 am

Nonstop2h 18m

$124

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

jue. 1/8

8:25 am-12:23 pm

1 stop3h 58m

San Francisco

dom. 1/11

7:00 am-9:18 am

Nonstop2h 18m

$126

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

jue. 1/8

6:05 pm-10:55 pm

1 stop4h 50m

San Francisco

vie. 1/9

2:39 pm-4:58 pm

Nonstop2h 19m

$127

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

vie. 1/23

10:51 am-5:00 pm

1 stop6h 09m

San Francisco

dom. 1/25

6:00 am-8:18 am

Nonstop2h 18m

$128

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

sáb. 2/14

9:19 am-11:38 am

Nonstop2h 19m

San Francisco

sáb. 2/21

10:37 pm-12:59 am

Nonstop2h 22m

$129

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

jue. 1/8

8:25 am-12:23 pm

1 stop3h 58m

San Francisco

lun. 1/12

9:00 am-11:21 am

Nonstop2h 21m

$130

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 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?

If you aren’t able to travel to San Francisco 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 $218.

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 when prices can be found for as low as $280. The most expensive day to fly to San Francisco is Tuesday, with ticket prices averaging around $505.

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

Our data shows that the cheapest Seattle to San Francisco flights are usually those with departure times at noon. Our users have found flights to San Francisco at noon for as low as $290. Flights in the evening are often more expensive with an average ticket price of $428.

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 $235 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 $165 on momondo.

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

There are 4 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.

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

As of December 2025, prices for Seattle to San Francisco flights are approximately 16% 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

$137

Fastest flight time

2h 10m

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 $137. The best round-trip flight deal from Seattle to San Francisco found on momondo in the last 72 hours is $159.
The fastest flight from Seattle to San Francisco takes 2h 10m
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?

    There are 678.2 mi between Seattle/Tacoma Intl and San Francisco. By plane, this route typically takes 2h 08m.

  • 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?

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

  • 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
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $100Free CancellationRating
5.8
3,087 reviews
Search Frontier flights
Hawaiian AirlinesPriceFrom $109Free CancellationRating
7.8
2,818 reviews
Search Hawaiian Airlines flights
DeltaPriceFrom $113Free CancellationRating
7.9
8,011 reviews
Search Delta flights
United AirlinesPriceFrom $123Free CancellationRating
7.4
9,078 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $133Free CancellationRating
8.0
11,414 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $309Free CancellationRating
7.2
11,044 reviews
Search American Airlines flights

  • Alaska Airlines Flights From Seattle to San Francisco

    Alaska Airlines is one of the most popular airlines flying from Seattle to San Francisco, operating 25 flights/week on average for this route. A good Alaska Airlines flight deal for Seattle to San Francisco starts from $133 round-trip, up to an average price of $247. Our users have rated Alaska Airlines at 8.0/10.

  • Delta Flights From Seattle to San Francisco

    The best Delta deal for Seattle to San Francisco flight tickets found on momondo in the last 72 hours was $113, round-trip. It should be noted that an average Delta flight deal for this route in this time was higher, at $206 round-trip. Delta operates 20 flights out of Seattle into San Francisco in an average week, so prices vary by time and availability. 8,011 Delta reviews by users on momondo have scored the airline at 7.9/10.

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Modesto
Sonoma
Bodega Bay
Roseville
Hayward
Big Sur
Calistoga
Santa Clara
Walnut Creek
Berkeley
Daly City
Fremont
Half Moon Bay
Vallejo
Salinas
Livermore
Turlock
Sunnyvale

Why use momondo?

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

It is quick and easy to find Seattle to San Francisco 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 San Francisco that suits you.

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?

momondo provides multiple filters to help you find the best flight to San Francisco from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to San Francisco, momondo offers a useful price alert feature which will track prices for flights to San Francisco from Seattle and alert you when they 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.
Start using Trips
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