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Cheap flights from Seattle to San Francisco from C$ 119

SEA — SFO
7 Oct — 14 Oct1
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 October, booked 58 days in advance, depart on a Wednesday or Friday and return on a Monday

Cheap flight deals from Seattle to San Francisco

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to San Francisco

Sat 3/108:36 p.m. -
Nonstop2h 13m
Mon 5/104:43 p.m. -
1 stop5h 50m
Deal found 6/9C$ 212
Fri 25/99:30 p.m. -
Nonstop2h 21m
Thu 1/106:23 a.m. -
Nonstop2h 17m
Deal found 4/9C$ 213
Sat 17/109:45 a.m. -
2 stops8h 00m
Tue 20/103:50 p.m. -
1 stop8h 05m
Deal found 6/9C$ 216
Mon 5/107:11 a.m. -
Nonstop2h 19m
Mon 12/1010:45 p.m. -
Nonstop2h 30m
Deal found 6/9C$ 217
Fri 9/107:11 a.m. -
Nonstop2h 19m
Mon 12/1010:45 p.m. -
Nonstop2h 30m
Deal found 6/9C$ 219
Thu 1/103:51 p.m. -
1 stop4h 52m
Sun 4/106:07 a.m. -
Nonstop2h 13m
Deal found 7/9C$ 221
Thu 1/105:30 a.m. -
2 stops7h 35m
Mon 5/106:10 a.m. -
2 stops9h 10m
Deal found 7/9C$ 223
Sun 11/109:35 p.m. -
Nonstop2h 21m
Fri 16/106:20 a.m. -
Nonstop2h 21m
Deal found 4/9C$ 224
Fri 23/109:36 p.m. -
Nonstop2h 16m
Mon 26/104:43 p.m. -
1 stop6h 54m
Deal found 5/9C$ 226
Sat 26/95:30 a.m. -
1 stop8h 05m
Tue 6/1011:05 a.m. -
1 stop8h 45m
Deal found 5/9C$ 227
Sat 26/97:18 a.m. -
Nonstop2h 19m
Sat 3/1011:00 a.m. -
Nonstop2h 16m
Deal found 5/9C$ 228
Tue 17/111:50 p.m. -
Nonstop2h 11m
Wed 25/116:00 a.m. -
Nonstop2h 15m
Deal found 7/9C$ 231

Find flight deals from Seattle to San Francisco

Round-trip from

C$ 212

One-way from

C$ 119

Popular in

July

Cheapest in

January

Average price

C$ 371

Good round-trip deal

C$ 284 or less

Good one-way deal

C$ 96 or less
Alaska Airlines
  • Alaska Airlines
  • 3/10-5/10
  • 1 total stop
  • 8h 03m total
  • Seattle to San Francisco
Search Deals
Frontier
  • Frontier
  • 30/9-31/12
  • 1 total stop
  • 10h 29m total
  • Seattle to San Francisco
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 51 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2026
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to San Francisco.
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to San Francisco.
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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Tue 10/11

5:40 a.m.-1:25 p.m.

2 stops7h 45m

San Francisco

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 130

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Tue 27/10

5:50 a.m.-3:10 p.m.

2 stops9h 20m

San Francisco

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 130

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Tue 6/10

5:50 a.m.-3:10 p.m.

2 stops9h 20m

San Francisco

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 130

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Tue 29/9

9:25 a.m.-5:05 p.m.

2 stops7h 40m

San Francisco

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 130

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Fri 2/10

10:55 a.m.-1:13 p.m.

Nonstop2h 18m

San Francisco

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 133
Quickest round-trip

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Sun 17/1

9:25 p.m.-11:41 p.m.

Nonstop2h 16m

San Francisco

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 144

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Sat 24/10

7:35 a.m.-2:35 p.m.

2 stops7h 00m

San Francisco

Tue 27/10

3:50 p.m.-11:55 p.m.

1 stop8h 05m

C$ 216

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Mon 19/10

9:35 p.m.-11:56 p.m.

Nonstop2h 21m

San Francisco

Thu 22/10

6:20 a.m.-8:41 a.m.

Nonstop2h 21m

C$ 217

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Tue 13/10

9:05 a.m.-11:24 a.m.

Nonstop2h 19m

San Francisco

Wed 21/10

9:07 p.m.-11:26 p.m.

Nonstop2h 19m

C$ 217

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Sat 3/10

8:00 a.m.-4:47 p.m.

2 stops8h 47m

San Francisco

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 234

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 21 resultsSorted by cheapest first
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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

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?

Booking 57 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$ 260). Flying from Seattle to San Francisco in July is currently the most expensive (average of C$ 452). 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?

Unlike in the evening, when flights are generally more expensive, you can save up to 34% on flights from Seattle to San Francisco by exploring options for tickets in the morning.

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

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. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Seattle to San Francisco?

Airfare is below average for this route at the moment.

Seattle to San Francisco flights typically cost between C$ 266 and C$ 508 in October.
The cheapest round-trip price found within the last 5 days was C$ 212 on Alaska Airlines (3 Oct-5 Oct).

Reviews of airlines servicing San Francisco

See what other customers who have flown with Alaska Airlines,Delta, andUnited 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
7.9
Good
12,888 reviews
Check prices

Boarding

8.1

Crew

8.5

Food

7.0

Entertainment

7.0

Overall

7.9

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
Alaska Airlines
7.9
Good
12,888 reviews
Alaska Airlines
7.9
Good
12,888 reviews
Check prices

Boarding

8.1

Crew

8.5

Food

7.0

Entertainment

7.0

Overall

7.9

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
Delta
7.8
Good
8,548 reviews
Alaska Airlines
7.9
Good
12,888 reviews
Check prices

Boarding

8.1

Crew

8.5

Food

7.0

Entertainment

7.0

Overall

7.9

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
United Airlines
7.4
Good
10,175 reviews
Alaska Airlines
7.9
Good
12,888 reviews
Check prices

Boarding

8.1

Crew

8.5

Food

7.0

Entertainment

7.0

Overall

7.9

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
Frontier
5.6
Fair
2,614 reviews
Alaska Airlines
7.9
Good
12,888 reviews
Check prices

Boarding

8.1

Crew

8.5

Food

7.0

Entertainment

7.0

Overall

7.9

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.

Related info for your journey

  • 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 15m for a nonstop flight. There are 46 flights from Seattle/Tacoma Intl to San Francisco per day from 4 airlines.

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

    This flight path from Seattle/Tacoma Intl to San Francisco was viewed by 119 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 2h 19m. Delta provides one of the quickest options available for as low as C$ 241. 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$ 102, 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 Alaska Airlines - these airlines can fly you to your destination from C$ 130 and C$ 165, respectively. Delta is currently priced 73% below the average price you’ll pay for this route.

  • 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 France (72%), SkyWest Airlines (65%) or Qatar Airways (52%) 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$ 54. On average you can expect to pay C$ 355. The most popular route, (Seattle/Tacoma Intl - San Francisco), can usually be booked for C$ 131.

  • 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$ 260). Flying from Seattle to San Francisco in July is currently the most expensive (average of C$ 452). 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
Santa Clara
Burlingame
San Bruno
Roseville
Livermore
South San Francisco
Novato
Manteca
Vallejo

Browse thousands of different options on Cheapflights for your next trip

Top 4 airlines flying from Seattle to San Francisco

AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 102AverageC$ 202FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 130AverageC$ 508FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Alaska AirlinesCheapestC$ 165AverageC$ 291FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
FrontierCheapestC$ 313AverageC$ 459FlexibilityNo cancel feeOn-time62%
Search Frontier flights

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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.

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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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