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Cheap flights from Seattle to San Francisco from $108

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 17/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SFO
26 Feb — 5 Mar1
1 adult

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 Tuesday or Monday and return on a Tuesday

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 21 February 2025.

Round-trip from

$193

One-way from

$108

Popular in

June

Cheapest in

January

Average price

$376

Good round-trip deal

$1,044 or less

Good one-way deal

$894 or less
Alaska Airlines
  • Alaska Airlines
  • 11/4-15/4
  • Nonstop
  • 4h 35m total
  • Seattle to San Francisco
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Delta
  • Delta
  • 17/3
  • 1 total stop
  • 5h 39m total
  • Seattle to San Francisco
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Highest demand for flights based on searches. 5% potential increase in price ($36 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average return 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 21 February 2025.

Fri 11/419:55SEA - SFO
Nonstop2h 18mAlaska Airlines
Tue 15/418:10SFO - SEA
Nonstop2h 17mAlaska Airlines
Deal found 21/2$193
Thu 13/307:10SEA - SFO
1 stop5h 27mDelta
Sun 16/306:05SFO - SEA
Nonstop2h 21mDelta
Deal found 20/2$199
Tue 1/416:16SEA - SFO
1 stop17h 32mFrontier
Wed 2/415:58SFO - SEA
1 stop17h 37mFrontier
Deal found 20/2$202
Thu 13/305:00SEA - SFO
Nonstop2h 17mUnited Airlines
Fri 21/306:00SFO - SEA
Nonstop2h 27mUnited Airlines
Deal found 20/2$216
Sat 22/305:20SEA - SFO
1 stop6h 35mSouthwest
Sat 29/318:35SFO - SEA
1 stop6h 15mSouthwest
Deal found 21/2$237
Thu 6/319:59SEA - SFO
Nonstop2h 12mHawaiian Airlines
Mon 10/318:49SFO - SEA
Nonstop2h 11mHawaiian Airlines
Deal found 20/2$434

Find flights from Seattle to San Francisco within your budget

Customise 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 647,157 searches. Data last updated 21 February 2025.

Fly from

Seattle

Fly to

San Francisco

Route

Depart

Return

Price

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Fri 11/4

19:55-22:13

Nonstop2h 18m

San Francisco

Tue 15/4

18:10-20:27

Nonstop2h 17m

$193

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Thu 13/3

09:25-17:29

1 stop8h 04m

San Francisco

Sun 16/3

06:05-08:26

Nonstop2h 21m

$199

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 1/4

16:16-09:48

1 stop17h 32m

San Francisco

Wed 2/4

15:58-09:35

1 stop17h 37m

$202

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Thu 13/3

05:00-07:17

Nonstop2h 17m

San Francisco

Fri 21/3

06:00-08:27

Nonstop2h 27m

$216

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sat 22/3

05:20-11:55

1 stop6h 35m

San Francisco

Sat 29/3

18:35-00:50

1 stop6h 15m

$237

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Mon 17/3

11:50-17:29

1 stop5h 39m

$108

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Fri 28/3

05:00-12:45

1 stop7h 45m

$119

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Wed 21/5

21:33-23:44

Nonstop2h 11m

$124

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 20/5

17:45-21:14

1 stop3h 29m

$138

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sun 20/4

05:15-07:27

Nonstop2h 12m

$147

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Showing 1-10 of 12 results
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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 return 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 return flight from Seattle to San Francisco. Price data was last updated on 14 February 2025.

Booking 85 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to San Francisco. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, March is the cheapest month in which you can book a flight from Seattle to San Francisco (average of $876). Flying from Seattle to San Francisco in December is currently the most expensive (average of $1,375). 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 21 February 2025.

One of the essential ways to save on airfare from Seattle to San Francisco is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the morning could potentially save you up to 89% on airfare.

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 21 February 2025.

The most flights from SEA to SFO are scheduled on a Thursday (101 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (31 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 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

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 21 February 2025.
See what other customers who have flown with Southwest, Alaska Airlines and Delta from Seattle to San Francisco have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very Good
4,408 reviews
Check prices

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.6

Food

7.1

Overall

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
4,408 reviews
Southwest
8.1
Very Good
4,408 reviews
Check prices

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.6

Food

7.1

Overall

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
9,697 reviews
Southwest
8.1
Very Good
4,408 reviews
Check prices

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.6

Food

7.1

Overall

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
8,217 reviews
Southwest
8.1
Very Good
4,408 reviews
Check prices

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.6

Food

7.1

Overall

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
2,317 reviews
Southwest
8.1
Very Good
4,408 reviews
Check prices

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.6

Food

7.1

Overall

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
8,760 reviews
Southwest
8.1
Very Good
4,408 reviews
Check prices

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.6

Food

7.1

Overall

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 travellers 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 67 daily flights to San Francisco from 1 airline. 2h 18m 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 56 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?

    Cheapflights users have booked flights from Seattle to San Francisco round-trip from $193. Other airlines that can offer you cheap pricing are Delta, from $199, and Frontier, from $202. Alaska Airlines is currently priced 47% below the average price you’ll pay for this route.

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

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $108. Users have also found prices from $119 and $124 on Southwest and Hawaiian Airlines, respectively.

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

    The top 3 most reliable airlines when flying from Seattle to San Francisco are Qantas Airways (90%), Copa Airlines (87%) and United Airlines (84%).

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

    Looking for the cheapest flight from Seattle to San Francisco? While on average our users pay $1,279, our data indicates the cheapest price to be $247. The most popular route (Seattle/Tacoma Intl - San Francisco), is priced around $212.

  • 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 holiday 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, March is the cheapest month in which you can book a flight from Seattle to San Francisco (average of $876). Flying from Seattle to San Francisco in December is currently the most expensive (average of $1,375). 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

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Sunnyvale
Los Gatos
Davis
Mountain View
Emeryville
Stanford
Sausalito
Hayward
Daly 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.
Seattle to Los Angeles flights
Portland to Los Angeles flights
Seattle to Las Vegas flights

Top airline flying from Seattle to San Francisco

Discover the top airline 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 647,157 searches. Data last updated 21 February 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$205Average$268FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to San Francisco?

When you search for this flight from Seattle to San Francisco, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Seattle to San Francisco?

Millions of users choose and trust Cheapflights to book the best flight deals from Seattle to San Francisco for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Seattle to San Francisco with no change fees?

Certainly. Search results for flights to San Francisco from Seattle shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Seattle to San Francisco become cheaper?

Not ready to book yet? You can track prices for flights from Seattle to San Francisco on Cheapflights with our Price Alert feature and get notified when better prices are available.

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