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Cheap flights from Seattle to San Francisco from C$ 111

SEA — SFO
18 Nov — 25 Nov1
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 September, booked 48 days in advance, depart on a Wednesday or Tuesday 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

Wed 2/127:20 a.m. -
Nonstop2h 18m
Wed 2/1212:39 p.m. -
Nonstop2h 16m
Deal found 15/10C$ 214
Wed 4/111:50 p.m. -
Nonstop2h 11m
Sat 7/118:33 a.m. -
Nonstop2h 19m
Deal found 14/10C$ 216
Sat 12/1211:50 a.m. -
Nonstop2h 22m
Mon 14/125:50 p.m. -
Nonstop2h 14m
Deal found 14/10C$ 221
Thu 5/117:16 a.m. -
Nonstop2h 22m
Mon 9/1110:38 a.m. -
Nonstop2h 19m
Deal found 14/10C$ 223
Thu 10/122:57 p.m. -
Nonstop2h 19m
Mon 21/126:10 a.m. -
Nonstop2h 23m
Deal found 14/10C$ 250
Thu 5/119:25 p.m. -
1 stop10h 25m
Mon 9/114:15 p.m. -
1 stop8h 45m
Deal found 14/10C$ 257
Sun 13/127:15 a.m. -
Nonstop2h 31m
Sat 19/126:10 a.m. -
Nonstop2h 23m
Deal found 14/10C$ 264
Mon 16/117:00 a.m. -
1 stop9h 15m
Tue 17/1112:25 p.m. -
2 stops9h 15m
Deal found 14/10C$ 265
Sat 21/111:52 p.m. -
1 stop25h 56m
Sun 22/1110:59 p.m. -
1 stop10h 04m
Deal found 16/10C$ 268
Mon 21/121:37 p.m. -
1 stop6h 51m
Wed 30/129:20 a.m. -
Nonstop2h 19m
Deal found 17/10C$ 282
Sat 14/118:54 a.m. -
Nonstop2h 21m
Sat 14/113:08 p.m. -
Nonstop2h 13m
Deal found 15/10C$ 285
Tue 10/1110:40 a.m. -
Nonstop2h 19m
Sat 14/112:10 p.m. -
Nonstop2h 16m
Deal found 19/10C$ 289

Find flight deals from Seattle to San Francisco

Round-trip from

C$ 214

One-way from

C$ 111

Popular in

July

Cheapest in

January

Average price

C$ 358

Good round-trip deal

C$ 285 or less
Alaska Airlines
  • Alaska Airlines
  • 2/12-2/12
  • Nonstop
  • 4h 34m total
  • Seattle to San Francisco
Search Deals
United Airlines
  • United Airlines
  • 5/11-31/12
  • Nonstop
  • 2h 19m total
  • Seattle to San Francisco
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 52 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2026
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to San Francisco.
Search Deals

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

Thu 5/11

7:00 a.m.-9:19 a.m.

Nonstop2h 19m

San Francisco

Wed 31/12

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

Nonstop0h 00m

C$ 111

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Sat 7/11

6:20 a.m.-2:30 p.m.

2 stops8h 10m

San Francisco

Wed 31/12

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

Nonstop0h 00m

C$ 133

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Sat 21/11

9:22 p.m.-11:33 p.m.

Nonstop2h 11m

San Francisco

Wed 31/12

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

Nonstop0h 00m

C$ 147

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Wed 2/12

9:22 p.m.-11:43 p.m.

Nonstop2h 21m

San Francisco

Wed 31/12

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

Nonstop0h 00m

C$ 147

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Sun 10/1

7:20 a.m.-9:51 a.m.

Nonstop2h 31m

San Francisco

Wed 31/12

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

Nonstop0h 00m

C$ 154

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Thu 21/1

9:01 a.m.-11:17 a.m.

Nonstop2h 16m

San Francisco

Wed 31/12

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

Nonstop0h 00m

C$ 161

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Sun 10/1

6:00 a.m.-1:20 p.m.

1 stop7h 20m

San Francisco

Wed 31/12

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

Nonstop0h 00m

C$ 168

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Mon 23/11

5:00 a.m.-11:25 a.m.

2 stops6h 25m

San Francisco

Wed 31/12

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

Nonstop0h 00m

C$ 169

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Sun 15/11

10:07 a.m.-3:48 p.m.

1 stop5h 41m

San Francisco

Wed 31/12

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

Nonstop0h 00m

C$ 203
Quickest round-trip

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Mon 16/11

7:33 p.m.-9:43 p.m.

Nonstop2h 10m

San Francisco

Wed 31/12

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

Nonstop0h 00m

C$ 236

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/10

Showing 1-10 of 16 resultsSorted by cheapest first
1
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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 47 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$ 264). Flying from Seattle to San Francisco in July is currently the most expensive (average of C$ 460). 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 at noon, when flights are generally more expensive, you can save up to 66% 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?

Travelers seeking maximum savings on their Seattle to San Francisco flight should consider departing on Wednesday afternoons 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$ 248 and C$ 523 in December.
The cheapest round-trip price found within the last 5 days was C$ 214 on Alaska Airlines (2 Dec-2 Dec).

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
13,088 reviews
Check prices

Overall

7.9

Boarding

8.1

Crew

8.5

Food

7.0

Comfort

7.8

Entertainment

7.0

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
13,088 reviews
Alaska Airlines
7.9
Good
13,088 reviews
Check prices

Overall

7.9

Boarding

8.1

Crew

8.5

Food

7.0

Comfort

7.8

Entertainment

7.0

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
8,649 reviews
Alaska Airlines
7.9
Good
13,088 reviews
Check prices

Overall

7.9

Boarding

8.1

Crew

8.5

Food

7.0

Comfort

7.8

Entertainment

7.0

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
7.3
Good
10,389 reviews
Alaska Airlines
7.9
Good
13,088 reviews
Check prices

Overall

7.9

Boarding

8.1

Crew

8.5

Food

7.0

Comfort

7.8

Entertainment

7.0

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
5.5
Fair
2,526 reviews
Alaska Airlines
7.9
Good
13,088 reviews
Check prices

Overall

7.9

Boarding

8.1

Crew

8.5

Food

7.0

Comfort

7.8

Entertainment

7.0

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 11m for a nonstop flight. There are 65 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 120 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$ 306. 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$ 104, 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$ 132 and C$ 168, 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 Aeromexico (92%), Air France (91%) or SkyWest Airlines (74%) 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$ 141. On average you can expect to pay C$ 506. The most popular route, (Seattle/Tacoma Intl - San Francisco), can usually be booked for C$ 221.

  • 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$ 264). Flying from Seattle to San Francisco in July is currently the most expensive (average of C$ 460). 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
San Bruno
Burlingame
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$ 104AverageC$ 280FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 132AverageC$ 518FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Alaska AirlinesCheapestC$ 168AverageC$ 290FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
FrontierCheapestC$ 324AverageC$ 491FlexibilityNo 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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