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Cheap flights from Seattle to San Francisco from $105

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 29/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SFO
6 Jul — 13 Jul1
1 adult

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to San Francisco are usually found in September or January, booked 88 days in advance, depart on a Saturday or Tuesday 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 1 July 2025.

Round-trip from

$208

One-way from

$105

Popular in

June

Cheapest in

September

Average price

$377

Good round-trip deal

$2,218 or less

Good one-way deal

$120 or less
Hawaiian Airlines
  • Hawaiian Airlines
  • 13/8-20/8
  • 1 total stop
  • 5h 44m total
  • Seattle to San Francisco
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Delta
  • Delta
  • 29/8
  • Nonstop
  • 2h 23m total
  • Seattle to San Francisco
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($48 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average return price).
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Average for round-trip flights in July 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 1 July 2025.

Wed 13/805:25SEA - SFO
1 stop3h 28mHawaiian Airlines
Wed 20/808:00SFO - SEA
Nonstop2h 16mHawaiian Airlines
Deal found 30/6$208
Sat 20/910:25SEA - SFO
Nonstop2h 20mDelta
Tue 23/920:58SFO - SEA
Nonstop2h 17mDelta
Deal found 1/7$209
Sat 16/812:31SEA - SFO
1 stop6h 22mAlaska Airlines
Sat 16/820:49SFO - SEA
Nonstop2h 13mAlaska Airlines
Deal found 30/6$215
Fri 26/916:20SEA - SFO
1 stop6h 50mSouthwest
Mon 29/917:15SFO - SEA
1 stop7h 00mSouthwest
Deal found 1/7$240
Thu 31/705:10SEA - SFO
Nonstop2h 12mUnited Airlines
Sun 3/822:55SFO - SEA
Nonstop2h 04mUnited Airlines
Deal found 1/7$270

Cheapflights Fare Finder

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

Fly from

Seattle

Fly to

San Francisco

Route

Depart

Return

Price

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Wed 13/8

05:25-08:53

1 stop3h 28m

San Francisco

Wed 20/8

08:00-10:16

Nonstop2h 16m

$208

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sat 20/9

10:25-12:45

Nonstop2h 20m

San Francisco

Tue 23/9

20:58-23:15

Nonstop2h 17m

$209

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sat 16/8

12:31-18:53

1 stop6h 22m

San Francisco

Sat 16/8

20:49-23:02

Nonstop2h 13m

$215

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Fri 26/9

16:20-23:10

1 stop6h 50m

San Francisco

Mon 29/9

17:15-00:15

1 stop7h 00m

$240

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Thu 31/7

05:10-07:22

Nonstop2h 12m

San Francisco

Sun 3/8

22:55-00:59

Nonstop2h 04m

$270

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Fri 29/8

07:28-09:51

Nonstop2h 23m

$105

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sun 17/8

05:25-08:53

1 stop3h 28m

$119

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Wed 20/8

16:10-21:25

1 stop5h 15m

$121

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 12/8

18:55-23:57

1 stop5h 02m

$134

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Wed 30/7

05:10-07:22

Nonstop2h 12m

$136

Flights are sorted by cheapest return flights first.

Deals found on 30/6

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.

Cheapflights Insights

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

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 27 June 2025.

Booking 88 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 1 July 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 in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 87% 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 1 July 2025.

The most flights from SEA to SFO are scheduled on a Monday (123 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (73 on average).

How much does it cost for a return flight from Seattle to San Francisco?

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 1 July 2025.
Read through reviews of airlines operating flights from Seattle to San Francisco, such as Alaska Airlines, Southwest, andDelta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Entertainment

7.1

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very Good
10,000 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Entertainment

7.1

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very Good
4,278 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Entertainment

7.1

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very Good
7,973 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Entertainment

7.1

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,538 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Entertainment

7.1

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,852 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Entertainment

7.1

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    This flight path from Seattle/Tacoma Intl to San Francisco was viewed by 39 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 $208. Other airlines that can offer you cheap pricing are Delta, from $209, and Alaska Airlines, from $215. Hawaiian Airlines is currently priced 41% 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 $105. Users have also found prices from $119 and $121 on Alaska Airlines and Southwest, 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 Horizon Air (100%), Emirates (93%) and WestJet (88%).

  • 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 $1,193, our data indicates the cheapest price to be $116. The most popular route (Seattle/Tacoma Intl - San Francisco), is priced around $511.

  • 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
Mountain View
Davis
Emeryville
Stanford
Sausalito
Milpitas
Daly City

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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.
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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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