San Francisco

$63+ Cheap flights from Seattle to San Francisco (SEA - SFO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SFO
Mar 24 — Mar 311
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Find cheap flights from Seattle to San Francisco with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to San Francisco are usually found in January or May, booked 78 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from Seattle to San Francisco

Cheapest flights from Seattle to San Francisco
Explore the most affordable flight options available from Seattle to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 22, 2026.

This Alaska Airlines deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/108:15 am
SEA
-
SFO
Nonstop2h 22m
Alaska Airlines
Tue 3/101:45 pm
SFO
-
SEA
Nonstop2h 19m
Alaska Airlines
Deal found 2/17$132
This United Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/15:25 pm
SEA
-
SFO
Nonstop2h 13m
United Airlines
Sun 5/310:35 pm
SFO
-
SEA
Nonstop2h 37m
United Airlines
Deal found 2/20$137
This Delta deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/127:25 am
SEA
-
SFO
Nonstop2h 25m
Delta
Sun 3/156:00 am
SFO
-
SEA
Nonstop2h 16m
Delta
Deal found 2/19$138
This Alaska Airlines deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:03 am
SEA
-
SFO
Nonstop2h 17m
Alaska Airlines
Sat 4/1810:23 am
SFO
-
SEA
1 stop6h 24m
Alaska Airlines
Deal found 2/18$141
This Trip.com deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/78:10 pm
SEA
-
SFO
Nonstop2h 17m
Hawaiian Airlines
Tue 4/148:00 am
SFO
-
SEA
1 stop6h 38m
Hawaiian Airlines
Deal found 2/21$144
This Delta deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/15:59 pm
SEA
-
SFO
1 stop5h 11m
Delta
Sun 5/38:00 pm
SFO
-
SEA
Nonstop2h 20m
Delta
Deal found 2/18$147
This Expedia deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/244:20 pm
SEA
-
SFO
1 stop8h 07m
Multiple Airlines
Wed 4/295:31 pm
SFO
-
SEA
Nonstop2h 15m
Multiple Airlines
Deal found 2/21$149
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/147:25 am
SEA
-
SFO
Nonstop2h 25m
Delta
Mon 3/164:47 pm
SFO
-
SEA
Nonstop2h 18m
Delta
Deal found 2/21$154
This Southwest deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/11:55 pm
SEA
-
SFO
1 stop9h 10m
Southwest
Sun 5/39:10 am
SFO
-
SEA
1 stop6h 55m
Southwest
Deal found 2/20$157
This Expedia deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/234:20 pm
SEA
-
SFO
1 stop8h 07m
Multiple Airlines
Tue 4/2810:28 am
SFO
-
SEA
1 stop5h 35m
Multiple Airlines
Deal found 2/20$159

Find flight deals from Seattle to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$132
(Alaska Airlines)

One-way from

$63
(Kiwi.com)

Popular in

February

Cheapest in

January

Average price

$327

Good round-trip deal

$238 or less

Good one-way deal

$151 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-San Francisco flight deals.
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-San Francisco flights.
From Seattle/Tacoma Intl to San Francisco
One-way flight from Seattle/Tacoma Intl to San Francisco
Highest demand for flights based on searches. 2% potential increase in price ($6 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in February 2026
Price to beat on a round-trip flight from Seattle/Tacoma Intl to San Francisco.
Price to beat on a one-way flight from Seattle/Tacoma Intl to San Francisco.

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated February 22, 2026.
Use the filters below to find and compare flights from Seattle to San Francisco that are best for you.

Fly from

Seattle

Fly to

San Francisco

Route

Depart

Return

Price

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Thu 4/9

9:45 pm-11:57 pm

Nonstop2h 12m

San Francisco

Mon 4/20

5:59 am-8:19 am

Nonstop2h 20m

$137

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 5/5

7:36 pm-9:49 pm

Nonstop2h 13m

San Francisco

Tue 5/12

10:05 am-12:25 pm

Nonstop2h 20m

$137

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Fri 5/15

7:17 am-9:37 am

Nonstop2h 20m

San Francisco

Wed 5/20

6:05 am-8:28 am

Nonstop2h 23m

$137

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Fri 3/20

9:45 pm-11:57 pm

Nonstop2h 12m

San Francisco

Mon 3/23

10:31 am-12:51 pm

Nonstop2h 20m

$137

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Wed 3/18

9:45 pm-11:57 pm

Nonstop2h 12m

San Francisco

Wed 3/25

6:00 am-8:16 am

Nonstop2h 16m

$137

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Thu 3/12

11:45 am-2:04 pm

Nonstop2h 19m

San Francisco

Sun 3/15

6:00 am-8:16 am

Nonstop2h 16m

$137

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Thu 4/2

9:45 pm-11:57 pm

Nonstop2h 12m

San Francisco

Fri 4/10

6:00 am-8:16 am

Nonstop2h 16m

$137

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sat 5/2

4:25 pm-6:47 pm

Nonstop2h 22m

San Francisco

Tue 5/5

10:32 am-12:55 pm

Nonstop2h 23m

$137

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Thu 4/9

9:45 pm-11:57 pm

Nonstop2h 12m

San Francisco

Tue 4/21

8:00 pm-10:20 pm

Nonstop2h 20m

$137

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Mon 4/13

7:00 am-9:22 am

Nonstop2h 22m

San Francisco

Wed 4/15

5:00 pm-11:59 pm

1 stop6h 59m

$147

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 20 results
1
2

Compare providers for flights from Seattle to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to San Francisco in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy1 starTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
Trip.comPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-San Francisco flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to San Francisco

How far ahead should I book a flight from Seattle to San Francisco?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to San Francisco. Price data was last updated on February 20, 2026.

To ensure you get the cheapest price possible for a flight from Seattle to San Francisco, you should look to book at least 39 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Seattle to San Francisco?

Currently, January is the cheapest month in which you can book a flight from Seattle to San Francisco (average of $82). Flying from Seattle to San Francisco in May is currently the most expensive (average of $137). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to SFO?

Find hourly flight availability from Seattle to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 22, 2026.

Unlike in the morning, when flights are generally more expensive, you can save up to 21% on flights from Seattle to San Francisco by exploring options for tickets at noon.

What is the cheapest day to fly from Seattle to San Francisco?

Use this chart to determine the cheapest time to fly round-trip from Seattle to San Francisco. Price data was last updated on February 17, 2026.

Travelers seeking maximum savings on their Seattle to San Francisco flight should consider departing on Friday evenings when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

The best insider tips for Seattle to San Francisco flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to San Francisco trip
Our travel experts
Matt Meltzer

Matt Meltzer

Expert on Avianca

Matt Meltzer has been a travel writer for over a decade, covering U.S. domestic locations and hotels for Thrillist, Fifty Grande, Matador Network, Conde Nast Traveler, and other top publications. He's won multiple travel journalism awards from the Society of American Travel Writers and North American Travel Journalists Association, and currently resides in South Florida.

Robert Schrader

Robert Schrader

Expert on Alaska Airlines

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Harriet Baskas

Harriet Baskas

Expert on United Airlines and SFO

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Brandon Schultz

Brandon Schultz

Expert on SEA

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated February 22, 2026.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and Hawaiian Airlines from Seattle to San Francisco by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.5

Entertainment

7.0

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Crew

8.5

Entertainment

7.0

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Crew

8.5

Entertainment

7.0

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Crew

8.5

Entertainment

7.0

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Crew

8.5

Entertainment

7.0

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Crew

8.5

Entertainment

7.0

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Seattle to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airports do I use to fly from Seattle to San Francisco?

    San Francisco is the airport most travelers will use when flying to San Francisco from Seattle/Tacoma Intl. Booking flights from Seattle/Tacoma Intl (SEA) to San Francisco (SFO) should be relatively easy as there are 58 daily flights to San Francisco from 7 different airlines. 2h 09m is how long a flight from Seattle to San Francisco will take if you book a nonstop flight.

  • How popular is this Seattle to San Francisco flight route?

  • How long is the flight from Seattle to San Francisco?

    Departing from Seattle to San Francisco will take you 2h 12m. The distance between Seattle and San Francisco is about 679 mi. Most flights are nonstop.

  • What are the cheapest airlines flying from Seattle to San Francisco round-trip?

    Our cheapest airline available from Seattle to San Francisco is Hawaiian Airlines. Our recent data shows that you can find tickets from as low as $81 on this airline. Additional options worth looking into are Frontier and Delta, starting at $83 and $83 round-trip. Hawaiian Airlines is priced at 66% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Seattle to San Francisco one-way?

    $60 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on United Airlines and Alaska Airlines, with prices starting from $67 and $68, respectively.

  • What are the most reliable airlines from Seattle to San Francisco?

    Consider Southwest (100%), Turkish Airlines (82%) or SWISS (79%) when booking your flight. These represent the most reliable airlines when flying from Seattle to San Francisco.

  • What are the cheapest flights from Seattle to San Francisco?

    On average you can expect to pay $854 for a flight from Seattle to San Francisco. The cheapest flight overall is $74 while the most popular route, (Seattle/Tacoma Intl - San Francisco) is currently priced at $137.

  • Can I find deals for flights from Seattle to San Francisco that include hotel bookings?

    Yes. In addition to deals on Seattle to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to San Francisco.

  • Can I find deals for business class flights from Seattle to San Francisco?

    Yes. Cheapflights offers flight deals from Seattle to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to San Francisco?

    Currently, January is the cheapest month in which you can book a flight from Seattle to San Francisco (average of $82). Flying from Seattle to San Francisco in May is currently the most expensive (average of $137). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
South San Francisco
Santa Cruz
Santa Clara
Livermore
Roseville
Watsonville
San Bruno
Daly City
Sunnyvale
Turlock
Vacaville
San Carlos
San Ramon
Redwood City
Rancho Cordova
San Lorenzo
Davis
Hollister
Manteca
Union City

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Seattle to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from Seattle to San Francisco

Discover the top 7 airlines that operate flights from Seattle to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$81Average$242FlexibilityNo cancel feeOn-time85%
FrontierCheapest$83Average$207FlexibilityNo cancel feeOn-time62%
DeltaCheapest$83Average$199FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$103Average$587FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$117Average$241FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$121Average$255FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$321Average$386FlexibilityNo cancel feeOn-time71%

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