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$67+ Cheap flights from San Francisco to Seattle (SFO - SEA)

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 3/26. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SEA
Mar 2 — Mar 91
Sun 3/2
Sun 3/9
1 adult, Economy
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1. Tell us where you want to go
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The best prices from San Francisco to Seattle/Tacoma Intl are usually found in October or January, booked 72 days in advance, depart on a Thursday or Friday and return on a Friday

Cheap flight deals from San Francisco to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Seattle (SEA). 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 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$130
(CheapOair)

One-way from

$67
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$237

Good round-trip deal

$206 or less

Good one-way deal

$112 or less
Provider with most accurate pricing for San Francisco-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Seattle/Tacoma Intl flights.
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From San Francisco to Seattle/Tacoma Intl
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One-way flight from San Francisco to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 11% potential increase in price ($31 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($5 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 San Francisco to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from San Francisco to Seattle/Tacoma Intl.
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Find flight deals from San Francisco to Seattle

Cheapest flights from San Francisco to Seattle
Explore the most affordable flight options available from San Francisco to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 25, 2025.

This CheapOair deal was found by Cheapflights users on 2/23. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/88:34 amSFO - SEA
1 stop10h 58mFrontier
Sun 5/116:50 pmSEA - SFO
1 stop15h 12mFrontier
Deal found 2/23$130
This Kiwi.com deal was found by Cheapflights users on 2/24. 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.
Mon 4/286:40 pmSFO - SEA
1 stop5h 15mHawaiian Airlines
Wed 4/306:29 pmSEA - SFO
1 stop5h 30mHawaiian Airlines
Deal found 2/24$133
This Kiwi.com deal was found by Cheapflights users on 2/23. 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.
Mon 4/216:00 amSFO - SEA
1 stop18h 44mMultiple Airlines
Fri 4/251:40 pmSEA - SFO
Nonstop2h 13mMultiple Airlines
Deal found 2/23$142
This Southwest deal was found by Cheapflights users on 2/25. 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 3/265:40 amSFO - SEA
1 stop6h 20mSouthwest
Wed 4/25:45 amSEA - SFO
2 stops9h 20mSouthwest
Deal found 2/25$144
This Alaska Airlines deal was found by Cheapflights users on 2/24. 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 3/199:20 amSFO - SEA
Nonstop2h 14mAlaska Airlines
Wed 3/193:00 pmSEA - SFO
Nonstop2h 13mAlaska Airlines
Deal found 2/24$151
This Delta deal was found by Cheapflights users on 2/24. 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 3/199:21 amSFO - SEA
Nonstop2h 23mDelta
Wed 3/2610:25 amSEA - SFO
Nonstop2h 24mDelta
Deal found 2/24$157
This United Airlines deal was found by Cheapflights users on 2/23. 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 4/1110:45 pmSFO - SEA
Nonstop2h 23mUnited Airlines
Sat 4/197:15 amSEA - SFO
Nonstop2h 19mUnited Airlines
Deal found 2/23$181
This American Airlines deal was found by Cheapflights users on 2/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1210:10 amSFO - SEA
1 stop8h 21mAmerican Airlines
Wed 5/146:14 amSEA - SFO
1 stop6h 18mAmerican Airlines
Deal found 2/24$214

Find flights from San Francisco to Seattle within your budget

Customize your flight search to find flights from San Francisco to Seattle 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 25, 2025.

Fly from

San Francisco

Fly to

Seattle

Route

Depart

Return

Price

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Mon 4/28

6:40 pm-11:55 pm

1 stop5h 15m

Seattle/Tacoma Intl

Wed 4/30

6:29 pm-11:59 pm

1 stop5h 30m

$137

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Wed 3/26

5:40 am-12:00 pm

1 stop6h 20m

Seattle/Tacoma Intl

Wed 4/2

5:45 am-3:05 pm

2 stops9h 20m

$144

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Mon 3/24

6:00 am-8:27 am

Nonstop2h 27m

Seattle/Tacoma Intl

Fri 3/28

7:00 am-9:21 am

Nonstop2h 21m

$147

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Wed 4/2

2:39 pm-4:53 pm

Nonstop2h 14m

Seattle/Tacoma Intl

Wed 4/2

7:59 pm-10:09 pm

Nonstop2h 10m

$151

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Tue 3/18

4:40 pm-6:57 pm

Nonstop2h 17m

Seattle/Tacoma Intl

Wed 3/19

5:30 pm-7:49 pm

Nonstop2h 19m

$157

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Wed 3/12

11:12 am-5:52 pm

1 stop6h 40m

Seattle/Tacoma Intl

Wed 3/19

3:00 pm-5:13 pm

Nonstop2h 13m

$206

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Wed 3/12

11:12 am-5:52 pm

1 stop6h 40m

Seattle/Tacoma Intl

Thu 3/13

11:38 am-6:07 pm

1 stop6h 29m

$241

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Wed 3/26

9:20 am-2:51 pm

1 stop5h 31m

$67

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Wed 4/2

9:20 am-11:34 am

Nonstop2h 14m

$69

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Wed 3/26

5:40 am-12:00 pm

1 stop6h 20m

$70

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/25

Showing 1-10 of 15 results
1
2

Compare providers for flights from San Francisco to Seattle

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 San Francisco to Seattle in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice 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 San Francisco-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-Seattle 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 San Francisco-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for San Francisco to Seattle flights

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

Saver Fare allows a carry-on but restricts seat selection and changes.


Premium Class offers extra legroom and free cocktails, but snacks require purchase.

Read more about Alaska Airlinesby Robert Schrader
United Airlines

Basic Economy allows a personal item only; no carry-on bags permitted.


Economy Plus offers extra legroom seats at the front of the economy cabin.

Read more about United Airlinesby Harriet Baskas
Delta

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


Comfort Plus provides extra legroom, early boarding, and complimentary drinks.

Read more about Deltaby Harriet Baskas
Airports
SFO

For a quick check-in, use the bonus checkpoint on the mezzanine level of Harvey Milk Terminal 1, accessible from the Terminal 1 AirTrain station.

Read more about SFOby Harriet Baskas
SEA

Take the Link light rail from SEA to downtown Seattle. It's affordable, runs every 10 minutes, and takes less than 40 minutes.

Read more about SEAby Brandon Schultz
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 United Airlines, Delta 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 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.

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 San Francisco to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from San Francisco 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 San Francisco to Seattle

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

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

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Seattle. Price data was last updated on February 14, 2025.

The best time to book flights from San Francisco to Seattle is 72 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from San Francisco to Seattle (average of $238). Flying from San Francisco to Seattle in July is currently the most expensive (average of $411). 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 SFO to SEA?

Find hourly flight availability from San Francisco to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 25, 2025.

A simple way to save on the total cost of your ticket is to fly from San Francisco to Seattle in the evening. If you’re flexible enough to do this you can expect to save up to 29% on your trip compared to booking a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from San Francisco to Seattle. Price data was last updated on February 23, 2025.

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

Weekly flight availability from San Francisco to Seattle

Explore weekly flight availability from San Francisco to Seattle. 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 25, 2025.

The most flights from SFO to SEA are scheduled on a Monday (85 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (26 on average).

Rainfall in Seattle by month

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

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

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

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated February 25, 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines and Delta from San Francisco to Seattle to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,374 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Crew

8.7

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Southwest
8.1
Very good
4,374 reviews
Southwest
8.1
Very good
4,374 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Crew

8.7

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Alaska Airlines
8.0
Very good
9,712 reviews
Southwest
8.1
Very good
4,374 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Crew

8.7

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Delta
8.0
Very good
8,165 reviews
Southwest
8.1
Very good
4,374 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Crew

8.7

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Hawaiian Airlines
7.9
Good
2,312 reviews
Southwest
8.1
Very good
4,374 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Crew

8.7

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

United Airlines
7.4
Good
8,733 reviews
Southwest
8.1
Very good
4,374 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Crew

8.7

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Seattle. 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 San Francisco to Seattle?

    Seattle/Tacoma Intl is the airport most travelers will use when flying to Seattle from San Francisco. Booking flights from San Francisco (SFO) to Seattle/Tacoma Intl (SEA) should be relatively easy as there are 55 daily flights to Seattle from 7 different airlines. 2h 05m is how long a flight from San Francisco to Seattle/Tacoma Intl will take if you book a nonstop flight.

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

    Within the past month, 130 users have taken a look at flights from San Francisco to Seattle/Tacoma Intl.

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

    Our cheapest airline available from San Francisco to Seattle is Frontier. Our recent data shows that you can find tickets from as low as $130 on this airline. Additional options worth looking into are Hawaiian Airlines and Southwest, starting at $133 and $144 round-trip. Frontier is currently priced 47% below the average price you’ll pay for this route.

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

    To fly one-way, consider booking your trip with Hawaiian Airlines, which is currently one of the cheapest options available, starting at $67. Alaska Airlines flights start at $69 while deals on Southwest start at $70 one-way.

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

    Before booking your flight to Seattle from San Francisco, check out the most reliable airlines to get you to your destination on time: Horizon Air (100%), Aeromexico (96%), Copa Airlines( 94%).

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

    While on average a flight from San Francisco to Seattle is generally $878, our data shows the cheapest flight currently is $83. When looking at the most popular route, (San Francisco - Seattle/Tacoma Intl), you can expect to pay $97 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Francisco to Seattle 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 San Francisco to Seattle?

    Currently, January is the cheapest month in which you can book a flight from San Francisco to Seattle (average of $238). Flying from San Francisco to Seattle in July is currently the most expensive (average of $411). 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
SeaTac
Tukwila
Renton
Tacoma
Lacey
Ocean Shores
Leavenworth
Federal Way
Centralia
Olympia
Cle Elum
Lakewood
Mukilteo
Aberdeen
Issaquah
Shoreline
Lynnwood
Shelton
Silverdale
Redmond

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from San Francisco to Seattle

Discover the top 6 airlines that operate flights from San Francisco to Seattle. 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 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$64Average$128FlexibilityNo cancel feeOn-time65%
FrontierCheapest$101Average$206FlexibilityNo cancel feeOn-time62%
DeltaCheapest$114Average$208FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$129Average$266FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$135Average$279FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$226Average$471FlexibilityNo cancel feeOn-time71%
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