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$71+ 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 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SFO
Feb 23 — Mar 21
Sun 2/23
Sun 3/2
1 adult, Economy
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Find cheap flights from Seattle to San Francisco with Cheapflights

1. Tell us where you want to go
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3. Compare prices and book
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The best prices from Seattle/Tacoma Intl to San Francisco are usually found in January or September, booked 85 days in advance, depart on a Friday or Thursday and return on a Thursday

Cheap 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 18, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$123
(Mytrip)

One-way from

$71
(Frontier)

Popular in

June

Cheapest in

January

Average price

$240

Good round-trip deal

$228 or less

Good one-way deal

$121 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-San Francisco flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-San Francisco flights.
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From Seattle/Tacoma Intl to San Francisco
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One-way flight from Seattle/Tacoma Intl to San Francisco
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($15 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to San Francisco.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to San Francisco.
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Find 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 18, 2025.

This Mytrip deal was found by Cheapflights users on 2/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/256:00 amSEA - SFO
1 stop18h 33mFrontier
Mon 4/288:35 amSFO - SEA
1 stop10h 48mFrontier
Deal found 2/16$123
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1110:25 amSEA - SFO
1 stop5h 47mMultiple Airlines
Wed 3/122:43 pmSFO - SEA
Nonstop2h 16mMultiple Airlines
Deal found 2/17$130
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/131:34 pmSEA - SFO
Nonstop2h 09mHawaiian Airlines
Sun 3/166:00 amSFO - SEA
Nonstop2h 15mHawaiian Airlines
Deal found 2/17$152
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.
Wed 3/196:15 amSEA - SFO
Nonstop2h 18mDelta
Wed 3/269:21 amSFO - SEA
Nonstop2h 23mDelta
Deal found 2/18$157
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.
Wed 3/1210:00 amSEA - SFO
1 stop3h 38mAlaska Airlines
Wed 3/122:43 pmSFO - SEA
Nonstop2h 16mAlaska Airlines
Deal found 2/18$161
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/182:50 pmSEA - SFO
Nonstop2h 18mUnited Airlines
Sun 3/3011:15 pmSFO - SEA
Nonstop2h 23mUnited Airlines
Deal found 2/18$175
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/195:45 amSEA - SFO
2 stops9h 20mSouthwest
Tue 3/251:50 pmSFO - SEA
2 stops7h 40mSouthwest
Deal found 2/17$187

Find flights from Seattle to San Francisco within your budget

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 18, 2025.

Fly from

Seattle

Fly to

San Francisco

Route

Depart

Return

Price

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Fri 4/25

6:00 am-12:33 am

1 stop18h 33m

San Francisco

Mon 4/28

8:35 am-7:23 pm

1 stop10h 48m

$123

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 3/11

10:25 am-4:12 pm

1 stop5h 47m

San Francisco

Wed 3/12

2:43 pm-4:59 pm

Nonstop2h 16m

$130

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Thu 3/13

7:59 pm-10:11 pm

Nonstop2h 12m

San Francisco

Sun 3/16

7:30 am-9:45 am

Nonstop2h 15m

$152

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Wed 3/19

6:15 am-8:33 am

Nonstop2h 18m

San Francisco

Wed 3/26

9:21 am-11:44 am

Nonstop2h 23m

$157

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 3/18

6:27 pm-11:42 pm

1 stop5h 15m

San Francisco

Sat 3/22

7:55 pm-10:12 pm

Nonstop2h 17m

$172

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 3/18

2:50 pm-5:08 pm

Nonstop2h 18m

San Francisco

Sun 3/30

11:15 pm-1:38 am

Nonstop2h 23m

$175

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Wed 3/19

5:45 am-3:05 pm

2 stops9h 20m

San Francisco

Tue 3/25

1:50 pm-9:30 pm

2 stops7h 40m

$187

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Fri 4/25

12:30 pm-12:33 am

1 stop12h 03m

$71

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Wed 4/2

1:45 pm-3:56 pm

Nonstop2h 11m

$78

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Wed 4/23

1:30 pm-3:46 pm

Nonstop2h 16m

$79

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/17

Showing 1-10 of 15 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
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars
GotogatePrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust 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.

The best insider tips for Seattle to San Francisco flights

Find out what our experts recommend to make the most of your Seattle to San Francisco trip
Airlines
Alaska Airlines

Alaska's Saver Fare allows a carry-on but no seat selection in advance.


Alaska Premium Class offers extra legroom and free cocktails.

Read more about Alaska Airlinesby Robert Schrader
Delta

Delta offers free Wi-Fi on most domestic flights for SkyMiles members.


Delta Comfort Plus offers extra legroom and complimentary alcoholic drinks.

Read more about Deltaby Harriet Baskas
United Airlines

Basic Economy allows only a personal item, no carry-on bags, unless exceptions apply.


Prepay checked bags 24 hours before flight to save on fees.

Read more about United Airlinesby Harriet Baskas
Airports
SEA

Plan to arrive at SEA at least two hours before your flight. Use SEA Spot Saver for security appointments to reduce wait times.

Read more about SEAby Brandon Schultz
SFO

For a budget-friendly arrival at SFO, take the BART from the airport to downtown San Francisco. The trip takes about 40 minutes.

Read more about SFOby Harriet Baskas
Our travel experts
Robert Schrader

Robert Schrader

Expert on Alaska Airlines

Robert Schrader

Robert Schrader

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.

Read more
Harriet Baskas

Harriet Baskas

Expert on Delta, United Airlines and SFO

Harriet Baskas

Harriet Baskas

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.

Read more
Brandon Schultz

Brandon Schultz

Expert on SEA

Brandon Schultz

Brandon Schultz

Brandon travels every week and makes friends with stray cats wherever he goes. Dogs, too... he once brought one home to the US from the Amalfi Coast. He’s written 6 books, visited 6 continents (still waiting on Antarctica), and would eat ice cream 6 times a day if he could. He lives in Brooklyn, New York, with his partner and three cats.

Read more

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.

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.

Travel insights for flights from Seattle to San Francisco

Get recent, data-driven insights about flights from Seattle to San Francisco including ideal travel times, pricing trends, and more.

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 14, 2025.

To ensure you get the cheapest price possible for a flight from Seattle to San Francisco, you should look to book at least 85 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 $276). Flying from Seattle to San Francisco in June is currently the most expensive (average of $403). 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 18, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 47% 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 16, 2025.

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

Weekly flight availability from Seattle to San Francisco

Explore weekly flight availability from Seattle to San Francisco. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 18, 2025.

The most flights from SEA to SFO are scheduled on a Monday (96 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (59 on average).

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 18, 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines and Delta from Seattle to San Francisco to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,423 reviews

Crew

8.7

Food

7.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
4,423 reviews
Southwest
8.1
Very good
4,423 reviews

Crew

8.7

Food

7.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,686 reviews
Southwest
8.1
Very good
4,423 reviews

Crew

8.7

Food

7.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,246 reviews
Southwest
8.1
Very good
4,423 reviews

Crew

8.7

Food

7.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Hawaiian Airlines
7.9
Good
2,319 reviews
Southwest
8.1
Very good
4,423 reviews

Crew

8.7

Food

7.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
8,779 reviews
Southwest
8.1
Very good
4,423 reviews

Crew

8.7

Food

7.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

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 80 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?

    This flight path from Seattle/Tacoma Intl to San Francisco was viewed by 134 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Our cheapest airline available from Seattle to San Francisco is Frontier. Our recent data shows that you can find tickets from as low as $123 on this airline. Additional options worth looking into are Hawaiian Airlines and Alaska Airlines, starting at $152 and $157 round-trip. Frontier is priced at 47% 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?

    $71 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Hawaiian Airlines and Delta, with prices starting from $77 and $79, respectively.

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

    Consider Qantas Airways (90%), Copa Airlines (87%) or United Airlines (84%) 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 $792 for a flight from Seattle to San Francisco. The cheapest flight overall is $78 while the most popular route, (Seattle/Tacoma Intl - San Francisco) is currently priced at $126.

  • 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 $276). Flying from Seattle to San Francisco in June is currently the most expensive (average of $403). 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 Seattle?

Book flights to Seattle if you plan to visit one of these locations
Roseville
Mountain View
Turlock
Santa Cruz
Fairfield
Manteca
Sausalito
Watsonville
Hayward
Richmond
Hollister
South San Francisco
Antioch
Milpitas
Vallejo
Newark
Alameda
Campbell
Pacific Grove
Sunnyvale

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Alternative routes for Seattle to San Francisco

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Top 6 airlines flying from Seattle to San Francisco

Discover the top 6 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 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$100Average$193FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$109Average$125FlexibilityNo cancel feeOn-time65%
DeltaCheapest$113Average$204FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$123Average$247FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$127Average$262FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$226Average$393FlexibilityNo cancel feeOn-time71%
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