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$76+ 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 6/11. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SEA
abr. 21 — abr. 281
lun. 4/21
lun. 4/28
1 adult, Economy
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Cheapflights Tip: The best prices from San Francisco to Seattle/Tacoma Intl are usually found in October or January, booked 78 days in advance, depart on a Friday or Thursday 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 abril 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$137
(Delta)

One-way from

$76
(Kiwi.com)

Popular in

July

Cheapest in

October

Average price

$237

Good round-trip deal

$209 or less

Good one-way deal

$114 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. 15% potential increase in price ($44 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 April 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 abril 16, 2025.

This Delta deal was found by Cheapflights users on 4/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/176:10 amSFO - SEA
Nonstop2h 20mDelta
sáb. 5/171:40 pmSEA - SFO
Nonstop2h 15mDelta
Deal found 4/16$137
This Kissandfly.com deal was found by Cheapflights users on 4/15. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/106:49 pmSFO - SEA
Nonstop2h 10mMultiple Airlines
dom. 5/118:13 amSEA - SFO
Nonstop2h 17mMultiple Airlines
Deal found 4/15$143
This Alaska Airlines deal was found by Cheapflights users on 4/15. 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.
jue. 5/226:55 pmSFO - SEA
Nonstop2h 17mAlaska Airlines
mar. 5/277:05 pmSEA - SFO
Nonstop2h 18mAlaska Airlines
Deal found 4/15$147
This Kissandfly.com deal was found by Cheapflights users on 4/15. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/106:30 amSFO - SEA
Nonstop2h 05mHawaiian Airlines
dom. 5/115:30 amSEA - SFO
1 stop3h 47mHawaiian Airlines
Deal found 4/15$149
This SmartFares deal was found by Cheapflights users on 4/16. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/223:33 pmSFO - SEA
1 stop9h 11mFrontier
mié. 4/236:00 amSEA - SFO
1 stop8h 38mFrontier
Deal found 4/16$170
This Southwest deal was found by Cheapflights users on 4/15. 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.
mié. 6/257:45 pmSFO - SEA
1 stop4h 45mSouthwest
lun. 6/306:15 pmSEA - SFO
1 stop5h 10mSouthwest
Deal found 4/15$180

Cheapflights Fare Finder

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 abril 16, 2025.
Use the filters below to find and compare flights from San Francisco to Seattle that are best for you.

Fly from

San Francisco

Fly to

Seattle

Route

Depart

Return

Price

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

sáb. 5/17

6:10 am-8:30 am

Nonstop2h 20m

Seattle/Tacoma Intl

sáb. 5/17

1:40 pm-3:55 pm

Nonstop2h 15m

$137

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

sáb. 5/10

6:49 pm-8:59 pm

Nonstop2h 10m

Seattle/Tacoma Intl

dom. 5/11

8:13 am-10:30 am

Nonstop2h 17m

$143

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

jue. 5/22

6:55 pm-9:12 pm

Nonstop2h 17m

Seattle/Tacoma Intl

mar. 5/27

7:05 pm-9:23 pm

Nonstop2h 18m

$147

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

sáb. 5/10

6:30 am-8:35 am

Nonstop2h 05m

Seattle/Tacoma Intl

dom. 5/11

5:30 am-9:17 am

1 stop3h 47m

$149

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

mar. 4/22

3:33 pm-12:44 am

1 stop9h 11m

Seattle/Tacoma Intl

mié. 4/23

6:00 am-2:38 pm

1 stop8h 38m

$170

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

mié. 6/25

7:45 pm-12:30 am

1 stop4h 45m

Seattle/Tacoma Intl

lun. 6/30

6:15 pm-11:25 pm

1 stop5h 10m

$180

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

mié. 6/11

5:25 pm-10:59 pm

1 stop5h 34m

$76

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

mar. 5/13

1:21 pm-8:20 pm

1 stop6h 59m

$78

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

vie. 5/16

6:10 am-8:30 am

Nonstop2h 20m

$79

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

mar. 7/15

7:45 pm-12:30 am

1 stop4h 45m

$87

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 14 results
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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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*2 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*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 eDreams the most. eDreams 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.

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.

Cheapflights Insights

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

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 April 11, 2025.

The best time to book flights from San Francisco to Seattle is 78 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 abril 16, 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 21% 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 March 30, 2025.

Travelers seeking maximum savings on their San Francisco to Seattle flight should consider departing on Friday afternoons 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 abril 16, 2025.

The most flights from SFO to SEA are scheduled on a Monday (87 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (25 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 abril 16, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest 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.
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,882 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,282 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,917 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.9
Good
2,380 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,665 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 66 daily flights to Seattle from 8 different airlines. 2h 04m 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, 137 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 Delta. Our recent data shows that you can find tickets from as low as $137 on this airline. Additional options worth looking into are Alaska Airlines and Hawaiian Airlines, starting at $147 and $149 round-trip. Delta is currently priced 43% 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 $76. Alaska Airlines flights start at $78 while deals on Southwest start at $87 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: Aeromexico (97%), Delta (93%), Copa Airlines( 90%).

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

    While on average a flight from San Francisco to Seattle is generally $789, our data shows the cheapest flight currently is $78. When looking at the most popular route, (San Francisco - Seattle/Tacoma Intl), you can expect to pay $126 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
Tacoma
Renton
Lakewood
Ocean Shores
Lacey
Leavenworth
Federal Way
Olympia
Shoreline
Cle Elum
Centralia
Aberdeen
Kent
Lynnwood
Shelton
Silverdale
Redmond
Issaquah

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Francisco to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from San Francisco to Seattle

Discover the top 7 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 abril 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$64Average$128FlexibilityNo cancel feeOn-time65%
FrontierCheapest$100Average$209FlexibilityNo cancel feeOn-time62%
DeltaCheapest$115Average$210FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$128Average$262FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$132Average$245FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$136Average$268FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$226Average$447FlexibilityNo cancel feeOn-time71%

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