Cheap flights from Seattle to San Francisco

Round-trip
Economy
Seattle (SEA)
San Francisco (SFO)
Depart
Return
Any month
Compare vs. Cheapflights |

The best prices from Seattle to San Francisco are usually found in March or January, booked 33 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

How to find the cheapest flight from
Seattle (SEA) to San Francisco (SFO)

All the information you need to plan the best SEA to SFO flight in 2021: compare Seattle to San Francisco flight prices with the expected peak season, weather and rainfall in San Francisco.
SEA - SFO
Price
C$ 183 - C$ 228
SFO
Temperature
15 - 25 °C
SFO
Rainfall
0 - 120 mm

Popular in

December

High demand for flights, 13% potential price rise

Cheapest in

March

Best time to find cheap flights, 8% potential price drop

Round-trip from

C$ 183

From Seattle to San Francisco

One-way from

C$ 123

One-way flight from Seattle to San Francisco

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Seattle to San Francisco?

Users have found that flying from Seattle to San Francisco on a Thursday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from Seattle to San Francisco?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 59 days in advance, which can save you up to 27% on flights from Seattle to San Francisco compared to booking the week you need them. Waiting 59 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at C$ 682. For sooner than that we have options available in the next 3 days from C$ 811.

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

August is one of the best times of the year to fly to San Francisco from Seattle. Prices for August average C$ 608 per person but you can even find prices for as low as C$ 511. The most expensive prices can be found in the month of December. Opting for a August flight can save you 15% on your journey compared to booking in August

When is the cheapest time to fly from Seattle to San Francisco (SEA - SFO)?

A simple way to save on the total cost of your ticket is to fly from Seattle to San Francisco in the afternoon. If you’re flexible enough to do this you can expect to save up to 8% on your trip compared to booking a flight at noon.

Cheap flights from Seattle to San Francisco in April, May 2021

The best prices found for SEA to SFO flights for April, May
8 May - 8 May
C$ 165pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Direct
SFO
San Francisco
SFO
San Francisco
Alaska Airlines
Direct
SEA
Seattle/Tacoma Intl
12 May - 1 Jun
C$ 172pp
SEA
Seattle/Tacoma Intl
Delta
Direct
SFO
San Francisco
SFO
San Francisco
Delta
Direct
SEA
Seattle/Tacoma Intl
3 May - 4 May
C$ 187pp
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl

Seattle to San Francisco 2021 flight deals

Cheap flights to San Francisco from Seattle found for this year
8 May - 8 May
C$ 165pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Direct
SFO
San Francisco
SFO
San Francisco
Alaska Airlines
Direct
SEA
Seattle/Tacoma Intl
12 May - 1 Jun
C$ 172pp
SEA
Seattle/Tacoma Intl
Delta
Direct
SFO
San Francisco
SFO
San Francisco
Delta
Direct
SEA
Seattle/Tacoma Intl
3 May - 4 May
C$ 187pp
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl

Direct flights to San Francisco from Seattle

Save time with Seattle to San Francisco direct flight deals
8 May - 8 May
C$ 165pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Direct
SFO
San Francisco
SFO
San Francisco
Alaska Airlines
Direct
SEA
Seattle/Tacoma Intl
12 May - 15 May
C$ 172pp
SEA
Seattle/Tacoma Intl
Delta
Direct
SFO
San Francisco
SFO
San Francisco
Delta
Direct
SEA
Seattle/Tacoma Intl
22 May - 3 Jun
C$ 197pp
SEA
Seattle/Tacoma Intl
Delta
Direct
SFO
San Francisco
SFO
San Francisco
Delta
Direct
SEA
Seattle/Tacoma Intl

Last minute flights from Seattle to San Francisco

Late deals on round-trip flights to San Francisco from Seattle, departing today and this week
20 Apr - 23 Jun
C$ 238pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Alaska Airlines
Direct
SEA
Seattle/Tacoma Intl
22 Apr - 8 May
C$ 275pp
SEA
Seattle/Tacoma Intl
Delta
Direct
SFO
San Francisco
SFO
San Francisco
Delta
Direct
SEA
Seattle/Tacoma Intl
23 Apr - 9 May
C$ 300pp
SEA
Seattle/Tacoma Intl
Delta
Direct
SFO
San Francisco
SFO
San Francisco
Delta
Direct
SEA
Seattle/Tacoma Intl

One-way flights to San Francisco from Seattle

The cheapest one-way flights from Seattle to San Francisco
3:00 a.m. - 8:04 a.m.
JetBlue
1 stop
5h 04m
SEA - SFO
JetBlue
C$ 123
4:50 a.m. - 4:39 p.m.
United Airlines
2 stops
11h 49m
SEA - SFO
United Airlines
C$ 184
United
11:10 a.m. - 1:18 p.m.
Delta
Direct
2h 08m
SEA - SFO
Delta
C$ 206
Delta

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Seattle</span> to <span class="emphasized">San Francisco</span> flights.

Flight FAQs

From Seattle to San Francisco

Can I find flights from Seattle to San Francisco for under C$ 251 on Cheapflights?

Yes, there are multiple flights from Seattle to San Francisco for under C$ 251. The cheapest flight booked recently is on Alaska Airlines for just C$ 165, but on average you can expect to pay C$ 208.

What safety measures are being taken by airlines flying from Seattle/Tacoma Intl to San Francisco to control the spread of COVID-19?

New policies can now be found on Alaska Airlines and Delta to help keep travellers safe while flying. New policies for travellers booking flights from Seattle/Tacoma Intl to San Francisco include masks being provided and required on board, daily cleaning and sanitization, use of HEPA filters, pre-flight testing for antibodies and symptoms, and socially-distanced seating (for a limited time). Keep in mind that policies will vary by airline.

Which airlines flying from Seattle/Tacoma Intl to San Francisco have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Seattle/Tacoma Intl to San Francisco that may be offering flexible cancellation policies are Alaska Airlines, Delta, and United Airlines. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Are there direct flights from Seattle to San Francisco for under C$ 251 on Cheapflights?

Cheapflights has 20 direct flights from Seattle to San Francisco under C$ 251. A good price for a direct flight from Seattle to San Francisco is less than C$ 251.

Are there last-minute flights available from Seattle to San Francisco for under C$ 251?

There are currently 20+ open flights from Seattle to San Francisco within the next 7 days for less than C$ 251.

What days are direct flights available from Seattle to San Francisco?

You can find direct flights on the following days: Monday.

How popular is this flight route?

Flights from Seattle/Tacoma Intl to San Francisco have been viewed 207 times in the past calendar month.

How many flights depart from Seattle to San Francisco on average per day?

Per day, 2 flights depart from Seattle/Tacoma Intl to San Francisco on average.
Afternoon (Noon - 6pm) - 100% of flight departures

Does it rain more in Seattle or San Francisco?

Seattle will have greater rainfall in 0 compared to San Francisco over the next 20 days.

Is Seattle weather warmer or cooler than San Francisco?

Temperatures around the 25 °C's can be experienced in September. The weather in San Francisco is hotter than in Seattle. Plan for potential changes in flight availability as peak weather approaches in this location.

How long is the flight from Seattle to San Francisco?

A quick flight from Seattle to San Francisco can take about 2h 03m. Alaska Airlines provides one of the quickest options available for as low as C$ 216. Seattle and San Francisco are separated by a distance of 1099 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

Our cheapest airline available from Seattle to San Francisco is Alaska Airlines. Our recent data shows that you can find tickets from as low as C$ 166 on this airline. Additional options worth looking into are Delta and Frontier, starting at C$ 172 and C$ 187 round-trip. You may be able to fly from Seattle to San Francisco for 16% less than the average price by searching for these airlines.

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

One-way options have recently been found by users for as low as C$ 87 on Delta. Other airlines that offer cheap prices include Alaska Airlines from C$ 111 and JetBlue from C$ 123 one-way.

Destination information for San Francisco

Things to know before you go - useful duration and weather info for your trip from Seattle to San Francisco.
Flight duration
2h 16m
Average temperature for April in San Francisco
19.0 °C
Avg rainfall for April in San Francisco
29.0 mm

Airports servicing Seattle

Airports servicing San Francisco

Top 4 airlines flying from Seattle to San Francisco

The chart below displays the airlines Cheapflights users travelling from Seattle to San Francisco choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Delta
C$ 68 C$ 149 No cancel fee N/A
Search Delta flights
Alaska Airlines
C$ 58 C$ 168 No cancel fee 75%
Search Alaska Airlines flights
United Airlines
C$ 79 C$ 218 No cancel fee 69%
Search United Airlines flights
American Airlines
C$ 186 C$ 335 No cancel fee 71%
Search American Airlines flights

Hourly flight availability from Seattle to San Francisco

See what time of day planes typically take off from Seattle towards San Francisco.
Morning 6 AM to noon 49% of flight departures
Afternoon Noon to 6 PM 31% of flight departures
Evening 6 PM to midnight 15% of flight departures
Early morning Midnight to 6 AM 5% of flight departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Seattle to San Francisco
See how many times per day planes take to the skies headed from Seattle to San Francisco.
Sunday
31 daily flights
Monday
31 daily flights
Tuesday
25 daily flights
Wednesday
35 daily flights
Thursday
32 daily flights
Friday
25 daily flights
Saturday
24 daily flights
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