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Cheap flights from Seattle to San Francisco from £54

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 18/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SFO
24 Dec — 31 Dec1
1 adult

The best prices from Seattle/Tacoma Intl to San Francisco are usually found in September or January, booked 80 days in advance, depart on a Tuesday or Monday and return on a Wednesday

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 19 December 2024.

Round-trip from

£106

One-way from

£54

Popular in

June

Cheapest in

September

Average price

£219
Alaska Airlines
  • Alaska Airlines
  • 1/2-8/2
  • Nonstop
  • 4h 32m total
  • Seattle to San Francisco
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United Airlines
  • United Airlines
  • 18/3
  • Nonstop
  • 2h 17m total
  • Seattle to San Francisco
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High demand for flights, 7% potential price rise
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Best time to find cheap flights, 2% potential price drop
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Average for round-trip flights in December 2024
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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 19 December 2024.

Wed 25/1216:15SEA - SFO
Nonstop2h 19mDelta
Sat 25/120:40SFO - SEA
Nonstop2h 25mDelta
Deal found 18/12£212
Tue 31/1219:59SEA - SFO
Nonstop2h 17mAlaska Airlines
Mon 6/107:00SFO - SEA
Nonstop2h 15mAlaska Airlines
Deal found 18/12£228
Sun 22/1205:00SEA - SFO
Nonstop2h 19mUnited Airlines
Thu 2/116:45SFO - SEA
Nonstop2h 20mUnited Airlines
Deal found 19/12£371
Tue 31/1210:40SEA - SFO
1 stop8h 50mSouthwest
Mon 6/112:40SFO - SEA
2 stops8h 05mSouthwest
Deal found 18/12£371

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 858,174 searches. Data last updated 19 December 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sat 1/2

11:20-13:37

Nonstop2h 17m

San Francisco

Sat 8/2

07:00-09:15

Nonstop2h 15m

£106

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Fri 17/1

17:35-19:57

Nonstop2h 22m

San Francisco

Fri 24/1

06:10-08:35

Nonstop2h 25m

£112

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 8/4

05:15-07:27

Nonstop2h 12m

San Francisco

Thu 10/4

11:20-13:43

Nonstop2h 23m

£120

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Mon 3/2

09:10-20:35

2 stops11h 25m

San Francisco

Thu 6/2

06:45-22:30

2 stops15h 45m

£192

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 18/3

13:34-15:43

Nonstop2h 09m

£54

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 7/1

17:15-19:34

Nonstop2h 19m

£62

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 7/1

19:10-00:14

1 stop5h 04m

£72

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Thu 20/2

13:30-23:05

2 stops9h 35m

£103

Flights are sorted by cheapest return flights first.

Deals found on 18/12

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 13 December 2024.

The best time to book flights from Seattle to San Francisco is 80 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 Seattle to San Francisco?

Currently, February is the cheapest month in which you can book a flight from Seattle to San Francisco (average of £538). Flying from Seattle to San Francisco in July is currently the most expensive (average of £742). 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 19 December 2024.

When flying from Seattle to San Francisco, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 19 December 2024.
Get a feel of what it's like to fly with Alaska Airlines, Delta and United Airlines from Seattle to San Francisco by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very Good
4,836 reviews
Check prices

Entertainment

7.7

Overall

8.1

Comfort

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

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

Southwest
8.1
Very Good
4,836 reviews
Southwest
8.1
Very Good
4,836 reviews
Check prices

Entertainment

7.7

Overall

8.1

Comfort

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

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

Alaska Airlines
8.0
Very Good
9,552 reviews
Southwest
8.1
Very Good
4,836 reviews
Check prices

Entertainment

7.7

Overall

8.1

Comfort

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

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

Delta
8.0
Very Good
8,604 reviews
Southwest
8.1
Very Good
4,836 reviews
Check prices

Entertainment

7.7

Overall

8.1

Comfort

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

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

United Airlines
7.4
Good
9,048 reviews
Southwest
8.1
Very Good
4,836 reviews
Check prices

Entertainment

7.7

Overall

8.1

Comfort

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

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?

    You will need to book a flight from Seattle/Tacoma Intl to San Francisco if you want to fly from Seattle to San Francisco. At least 1 airline has flights from Seattle/Tacoma Intl (SEA) to San Francisco (SFO) on a regular basis. There are 22 flights to San Francisco from the Seattle airport per day. If you manage to book one that is nonstop, then you can expect the flight time from SEA to SFO to be around 2h 19m.

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

    Flights from Seattle/Tacoma Intl to San Francisco have been viewed 11 times in the past calendar month.

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

    According to our current data, Alaska Airlines (£106), Delta (£112), and United Airlines (£120) offers the cheapest pricing from Seattle to San Francisco. These flights start at 42% lower than the current average price 3 months from now.

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

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as £54. However, be on the lookout for offers from Alaska Airlines and United Airlines, as they are both options that can get you from Seattle to San Francisco for a low price.

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

    No one likes to see their flight delayed. When booking a flight from Seattle to San Francisco consider choosing Air China (92%), Iberia (90%) or KLM (87%) as they are the most reliable in getting you off to your destination on time.

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

    On average you can expect to pay £369 for a flight from Seattle to San Francisco. The cheapest flight overall is £107 while the most popular route, (Seattle/Tacoma Intl - San Francisco) is currently priced at £90.

  • 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, February is the cheapest month in which you can book a flight from Seattle to San Francisco (average of £538). Flying from Seattle to San Francisco in July is currently the most expensive (average of £742). 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

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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 858,174 searches. Data last updated 19 December 2024.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest£101Average£147FlexibilityNo cancel feeOn-time75%
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Fly with Cheapflights

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

Cheapflights makes it easy to find Seattle to San Francisco flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights helps you find that perfect flight to San Francisco from Seattle by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Yes! Cheapflights helps users easily find flights from Seattle to San Francisco with no change fees.

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

Of course! You can now track prices for flights from Seattle to San Francisco and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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