Cheap flights from San Francisco to Seattle (SFO - SEA)

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The best prices from San Francisco to Seattle are usually found in February or October, booked 26 days in advance, depart on a Saturday or Thursday and return on a Thursday

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

SFO - SEA
Price
$147 - $199
SEA
Temperature
46.4 - 77 °F
SEA
Rainfall
0.7 - 6.5 inches

Popular in

December

High demand for flights, 18% potential price rise

Cheapest in

February

Best time to find cheap flights, 10% potential price drop

Round-trip from

$147

From San Francisco to Seattle

One-way from

$46

One-way flight from San Francisco to Seattle

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 San Francisco to Seattle?

Flying to your destination on a Saturday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Seattle. Check prices with Cheapflights to find a great deal for your trip.

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

Users have found that booking a flight from San Francisco to Seattle at least 28 days early can save you up to 71% on average compared to booking a flight this week. If booking 28 days before your flight isn’t an option for you, users have found flights from San Francisco to Seattle for as little as $123 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $189 for flights departing within the next 3 days.

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

Our data shows that April tends to be the cheapest month to fly to Seattle from San Francisco. Users have commonly found prices around $115 for the month, but tickets can be as low as $36. Due to multiple factors, prepare for potentially higher prices in December.

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

Unlike in the afternoon, when flights are generally more expensive, you can save up to 8% on flights from San Francisco to Seattle by exploring options for tickets in the morning.

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

22 Mar - 29 Mar
$73pp
SFO
San Francisco
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
SFO
San Francisco
23 Mar - 25 Mar
$74pp
SFO
San Francisco
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
SFO
San Francisco
24 Mar - 25 Mar
$75pp
SFO
San Francisco
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
SFO
San Francisco

San Francisco to Seattle 2021 flight deals

22 Mar - 29 Mar
$73pp
SFO
San Francisco
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
SFO
San Francisco
23 Mar - 25 Mar
$74pp
SFO
San Francisco
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
SFO
San Francisco
24 Mar - 25 Mar
$75pp
SFO
San Francisco
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
SFO
San Francisco

Non-stop flights to Seattle from San Francisco

6 Apr - 13 Apr
$77pp
SFO
San Francisco
United Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
United Airlines
Non-Stop
SFO
San Francisco
17 Apr - 18 Apr
$84pp
SFO
San Francisco
United Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
United Airlines
Non-Stop
SFO
San Francisco
1 Apr - 4 Apr
$86pp
SFO
San Francisco
Delta
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Delta
Non-Stop
SFO
San Francisco

Last minute flights from San Francisco to Seattle

10 Mar - 17 Mar
$80pp
SFO
San Francisco
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
SFO
San Francisco
10 Mar - 15 Mar
$87pp
SFO
San Francisco
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
SFO
San Francisco
14 Mar - 23 Mar
$88pp
SFO
San Francisco
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
SFO
San Francisco

One-way flights to Seattle from San Francisco

3:30 pm - 5:29 pm
United Airlines
Nonstop
1h 59m
SFO - SEA
United Airlines
$46
United
2:17 pm - 4:25 pm
Delta
Nonstop
2h 08m
SFO - SEA
Delta
$49
Delta
8:59 pm - 5:29 pm
Multiple Airlines
1 Stop
20h 30m
SFO - SEA
Multiple Airlines
$67
FlightNetwork

Related info for your journey

Flight FAQs

From San Francisco to Seattle

Are flight prices decreasing from San Francisco to Seattle due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both San Francisco and Seattle for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

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

Airlines globally have implemented additional safety measures to accommodate you. Alaska Airlines and Delta are some airlines that have done so. Airline carriers are regularly disinfecting and sanitizing their aircraft. Masks are provided and are mandatory while on board. Pre-flight testing for symptoms and antibodies, alongside socially distanced seating (for a limited time) will work towards keeping travelers safer while flying from San Francisco to Seattle/Tacoma Intl. Policies will vary by airline.

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

Due to the rapidly changing circumstances due to COVID-19, airlines like Alaska Airlines, United Airlines, and Delta flying from San Francisco to Seattle/Tacoma Intl have implemented new flexible cancellation policies.

Can I find flights from San Francisco to Seattle for under $100 on Cheapflights?

Yes, there are multiple flights from San Francisco to Seattle for under $100. The cheapest flight booked recently is on Frontier for just $73, but on average you can expect to pay $82.

Are there nonstop flights from San Francisco to Seattle for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from San Francisco to Seattle under $100. A good price for a nonstop flight from San Francisco to Seattle is less than $106.

Are there last-minute flights available from San Francisco to Seattle for under $100?

There are currently 20+ open flights from San Francisco to Seattle within the next 7 days for less than $100.

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

Days when nonstop flights are available for this flight are: Sunday, Monday, Tuesday, Thursday, Friday, Saturday.

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

Per day, 28 flights depart from San Francisco to Seattle/Tacoma Intl on average.
Early Morning (Midnight to 6am) - 11% of flight departures
Morning (6am - Noon) - 11% of flight departures
Afternoon (Noon - 6pm) - 46% of flight departures
Evening (6pm - Midnight) - 32% of flight departures

Does it rain more in San Francisco or Seattle?

San Francisco will have less rainfall in 2 compared to Seattle over the next 14 days.

Is San Francisco weather warmer or cooler than Seattle?

Temperatures around the 77 °F's can be experienced in July. The weather in Seattle is hotter than in San Francisco. Plan for potential changes in flight availability as peak weather approaches in this location.

How long is the flight from San Francisco to Seattle?

Departing from San Francisco to Seattle will take you 1h 59m. San Francisco and Seattle are separated by a distance of 683 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

According to our current data, Frontier ($73), United Airlines ($77), and Alaska Airlines ($97) offers the cheapest pricing from San Francisco to Seattle. Users have found that Frontier is 55% cheaper than the other options available to this destination.

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

For one-way options, check prices for Frontier. According to our data, you can fly for as low as $38. Users have also found prices from $46 and $49 on Frontier and United Airlines, respectively.

Alternative routes for San Francisco to Seattle

Destination information for Seattle

Flight duration
2h 08m
Average temperature for March in Seattle
55.4 °F
Avg rainfall for March in Seattle
3.8 ″

Airports servicing San Francisco

Airports servicing Seattle

Top 8 airlines flying from San Francisco to Seattle

Airline Cheapest Average Flexibility On-time COVID-19 safety
Delta
$68 $189 No cancel fee N/A
Alaska Airlines
$68 $207 No cancel fee 75%
United Airlines
$68 $211 No cancel fee 69%
Southwest
$72 $233 No cancel fee 63%
Spirit Airlines
$104 $248 No cancel fee 65%
JetBlue
$149 $307 No cancel fee 62%
American Airlines
$113 $333 No cancel fee 71%
JSX
$248 $351 No cancel fee N/A

We couldn't confirm the COVID-19 safety measures taken by JSX. Please check directly on their website for additional information.

Hourly flight availability from San Francisco to Seattle

Afternoon Noon to 6 PM 42% of SFO to SEA departures
Morning 6 AM to noon 31% of SFO to SEA departures
Evening 6 PM to midnight 14% of SFO to SEA departures
Early morning Midnight to 6 AM 13% of SFO to SEA departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from San Francisco to Seattle
Sunday
14 daily flights
Monday
28 daily flights
Tuesday
28 daily flights
Wednesday
32 daily flights
Thursday
15 daily flights
Friday
12 daily flights
Saturday
22 daily flights
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