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Cheap flights from Seattle to San Francisco from C$ 92

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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SFO
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to San Francisco are usually found in January or February, booked 83 days in advance, depart on a Friday or Saturday and return on a Friday

Cheap flight deals from Seattle to San Francisco

Enter your travel dates to find the best prices.

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 12 December 2025.

Wed 31/127:23 p.m.SEA - SFO
Nonstop2h 18mAlaska Airlines
Thu 8/16:18 p.m.SFO - SEA
Nonstop2h 16mAlaska Airlines
Deal found 10/12C$ 203
Wed 31/127:13 a.m.SEA - SFO
Nonstop2h 20mDelta
Wed 7/16:30 p.m.SFO - SEA
Nonstop2h 16mDelta
Deal found 10/12C$ 244
Wed 31/127:13 a.m.SEA - SFO
Nonstop2h 20mDelta
Tue 6/14:03 p.m.SFO - SEA
1 stop6h 21mDelta
Deal found 10/12C$ 258
Wed 31/121:10 p.m.SEA - SFO
1 stop8h 40mSouthwest
Tue 6/111:10 a.m.SFO - SEA
1 stop11h 55mSouthwest
Deal found 10/12C$ 299
Tue 30/1210:15 p.m.SEA - SFO
Nonstop2h 17mDelta
Mon 5/16:00 a.m.SFO - SEA
Nonstop2h 20mDelta
Deal found 10/12C$ 313
Tue 30/129:35 p.m.SEA - SFO
Nonstop2h 19mAlaska Airlines
Thu 1/14:42 p.m.SFO - SEA
Nonstop2h 17mAlaska Airlines
Deal found 9/12C$ 320
Thu 25/127:10 a.m.SEA - SFO
Nonstop2h 23mDelta
Tue 6/11:00 p.m.SFO - SEA
1 stop6h 34mDelta
Deal found 10/12C$ 327
Tue 30/124:59 p.m.SEA - SFO
1 stop6h 50mAlaska Airlines
Wed 7/11:10 p.m.SFO - SEA
1 stop6h 31mAlaska Airlines
Deal found 9/12C$ 332
Wed 24/123:29 p.m.SEA - SFO
1 stop4h 20mAlaska Airlines
Mon 5/19:41 p.m.SFO - SEA
Nonstop2h 18mAlaska Airlines
Deal found 10/12C$ 341
Mon 29/1210:15 p.m.SEA - SFO
Nonstop2h 17mDelta
Thu 1/15:45 a.m.SFO - SEA
Nonstop2h 21mDelta
Deal found 9/12C$ 348
Wed 31/127:13 a.m.SEA - SFO
Nonstop2h 20mDelta
Sat 3/15:45 a.m.SFO - SEA
Nonstop2h 21mDelta
Deal found 10/12C$ 354
Wed 31/127:23 p.m.SEA - SFO
Nonstop2h 18mAlaska Airlines
Sun 4/110:46 a.m.SFO - SEA
1 stop21h 39mAlaska Airlines
Deal found 9/12C$ 359

Find 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 12 December 2025.

Round-trip from

C$ 161

One-way from

C$ 92

Popular in

December

Cheapest in

January

Average price

C$ 376

Good round-trip deal

C$ 279 or less
Delta
  • Delta
  • 8/1-12/1
  • 2 total stops
  • 12h 42m total
  • Seattle to San Francisco
Search Deals
Frontier
  • Frontier
  • 6/1
  • 1 total stop
  • 16h 41m total
  • Seattle to San Francisco
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 13 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to San Francisco.
Search Deals

Cheapflights Fare Finder

 
Customize 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 629,999 searches. Data last updated 12 December 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

Sat 24/1

9:55 a.m.-5:56 p.m.

1 stop8h 01m

San Francisco

Sun 25/1

1:35 p.m.-6:43 p.m.

1 stop5h 08m

C$ 161

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sat 17/1

5:25 a.m.-12:23 p.m.

1 stop6h 58m

San Francisco

Tue 20/1

11:02 a.m.-6:42 p.m.

1 stop7h 40m

C$ 161

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sun 18/1

5:25 a.m.-12:23 p.m.

1 stop6h 58m

San Francisco

Thu 22/1

8:25 a.m.-2:54 p.m.

1 stop6h 29m

C$ 161

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Thu 19/3

9:50 a.m.-3:02 p.m.

1 stop5h 12m

San Francisco

Tue 24/3

4:40 p.m.-6:54 p.m.

Nonstop2h 14m

C$ 182

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Thu 12/2

8:30 p.m.-10:41 p.m.

Nonstop2h 11m

San Francisco

Tue 17/2

6:00 a.m.-12:58 p.m.

1 stop6h 58m

C$ 203

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sun 11/1

7:15 a.m.-9:35 a.m.

Nonstop2h 20m

San Francisco

Sun 5/4

6:05 a.m.-8:21 a.m.

Nonstop2h 16m

C$ 203

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Fri 9/1

7:15 a.m.-3:08 p.m.

1 stop7h 53m

San Francisco

Fri 16/1

2:39 p.m.-4:58 p.m.

Nonstop2h 19m

C$ 203

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Mon 12/1

1:20 p.m.-9:20 p.m.

1 stop8h 00m

San Francisco

Wed 14/1

5:30 a.m.-12:20 p.m.

1 stop6h 50m

C$ 208

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Thu 8/1

9:55 a.m.-5:05 p.m.

1 stop7h 10m

San Francisco

Sun 11/1

5:30 a.m.-1:30 p.m.

1 stop8h 00m

C$ 208

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 13/1

5:15 a.m.-11:50 a.m.

1 stop6h 35m

San Francisco

Tue 13/1

3:00 p.m.-10:35 p.m.

1 stop7h 35m

C$ 208

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 21 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 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 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 round-trip flight from Seattle to San Francisco. Price data was last updated on 5 December 2025.

Booking 30 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, January is the cheapest month in which you can book a flight from Seattle to San Francisco (average of C$ 116). Flying from Seattle to San Francisco in May is currently the most expensive (average of C$ 189). 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 12 December 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 41% on flights from Seattle to San Francisco by exploring options for tickets in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from Seattle to San Francisco. Price data was last updated on 6 December 2025.

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

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 12 December 2025.
See what other customers who have flown with Alaska Airlines,Delta, andHawaiian Airlines from Seattle to San Francisco have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,432 reviews
Check prices

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.0

Overall

8.0

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
11,432 reviews
Alaska Airlines
8.0
Very good
11,432 reviews
Check prices

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
7.9
Good
8,007 reviews
Alaska Airlines
8.0
Very good
11,432 reviews
Check prices

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.0

Overall

8.0

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
2,817 reviews
Alaska Airlines
8.0
Very good
11,432 reviews
Check prices

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.0

Overall

8.0

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
9,095 reviews
Alaska Airlines
8.0
Very good
11,432 reviews
Check prices

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Frontier
5.8
Fair
3,084 reviews
Alaska Airlines
8.0
Very good
11,432 reviews
Check prices

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.0

Overall

8.0

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.

  • What airports do I use to fly from Seattle to San Francisco?

    If you book a flight from Seattle to San Francisco, you will be flying from Seattle/Tacoma Intl to San Francisco. Flights to San Francisco (SFO) from Seattle/Tacoma Intl (SEA) take 2h 18m for a nonstop flight. There are 67 flights from Seattle/Tacoma Intl to San Francisco per day from 5 airlines.

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

    This flight path from Seattle/Tacoma Intl to San Francisco was viewed by 274 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Seattle to San Francisco?

    A quick flight from Seattle to San Francisco can take about 5h 12m. Delta provides one of the quickest options available for as low as C$ 182. The distance between Seattle and San Francisco is about 1093 km. This flight may include one or multiple stops.

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

    Currently priced at C$ 95, Delta will fly you from Seattle to San Francisco and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Frontier - these airlines can fly you to your destination from C$ 129 and C$ 152, respectively. Delta is currently priced 70% below the average price you’ll pay for this route.

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

    C$ 81 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Hawaiian Airlines and Alaska Airlines, with prices starting from C$ 85 and C$ 93, respectively.

  • 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 Horizon Air (89%), WestJet (80%) or Turkish Airlines (79%) 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?

    The cheapest flight price from Seattle to San Francisco is C$ 129. On average you can expect to pay C$ 974. The most popular route, (Seattle/Tacoma Intl - San Francisco), can usually be booked for C$ 134.

  • 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 vacation 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, January is the cheapest month in which you can book a flight from Seattle to San Francisco (average of C$ 116). Flying from Seattle to San Francisco in May is currently the most expensive (average of C$ 189). 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 San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Richmond
Newark
Redwood City
Burlingame
South San Francisco
Scotts Valley
Novato
Santa Clara
Vallejo

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Alternative routes for Seattle to San Francisco

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Top 5 airlines flying from Seattle to San Francisco

Discover the top 5 airlines 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 629,999 searches. Data last updated 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 95AverageC$ 161FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
FrontierCheapestC$ 152AverageC$ 319FlexibilityNo cancel feeOn-time62%
Search Frontier flights
United AirlinesCheapestC$ 157AverageC$ 320FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Alaska AirlinesCheapestC$ 160AverageC$ 237FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Hawaiian AirlinesCheapestC$ 197AverageC$ 253FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers 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?

Deals for Seattle to San Francisco flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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?

Yes! Start tracking prices for Seattle to San Francisco flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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