What is the most punctual flight time for San Francisco to Seattle flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

Which airline has the best punctuality record on San Francisco to Seattle flights?

Over the past year, United Airlines have had the lowest number of delays on this route, with just 16% of flights being delayed.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

How often are flights from San Francisco to Seattle delayed?

About 18% of weekly flights between San Francisco and Seattle have experienced delays in the past year, with the average delay time being 134 minutes.

How popular is this San Francisco to Seattle flight route?

This flight path from San Francisco to Seattle/Tacoma Intl was viewed by 5 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 San Francisco to Seattle?

For as low as S$ 269, Southwest can have you in Seattle from San Francisco in 2h 13m. Airlines will cover a distance of 1093 km. This flight may include one or multiple stops.

Weekly flight availability from San Francisco to Seattle

The most flights from SFO to SEA are scheduled on a Monday (87 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (48 on average).

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

What are the most reliable airlines from San Francisco to Seattle?

Consider Air China (88%), WestJet (80%) or Emirates (77%) when booking your flight. These represent the most reliable airlines when flying from San Francisco to Seattle.

Can I find deals for flights from San Francisco to Seattle that include hotel bookings?

Yes. In addition to deals on San Francisco to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from San Francisco to Seattle?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Seattle.

Can I find deals for business class flights from San Francisco to Seattle?

Yes. Cheapflights offers flight deals from San Francisco to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

S$ 107+ Cheap Flights from San Francisco to Seattle

Cheap flight deals from San Francisco to Seattle

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from San Francisco to Seattle
Explore the most affordable flight options available from San Francisco to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Sat 3-1016:21 -

Nonstop2h 12m

Sat 3-1019:36 -

Nonstop2h 13m

Deal found 12-9S$ 219

Thu 15-1012:03 -

Nonstop2h 14m

Thu 22-1013:19 -

Nonstop2h 16m

Deal found 17-9S$ 226

Sat 5-1215:20 -

1 stop5h 10m

Wed 9-1208:05 -

2 stops6h 50m

Deal found 13-9S$ 227

Wed 7-1009:43 -

Nonstop2h 12m

Thu 15-1021:36 -

Nonstop2h 16m

Deal found 14-9S$ 229

Thu 15-1015:15 -

2 stops7h 20m

Thu 22-1007:40 -

1 stop7h 15m

Deal found 12-9S$ 232

Thu 15-1006:10 -

2 stops9h 10m

Tue 20-1012:05 -

2 stops9h 20m

Deal found 12-9S$ 238

Mon 5-1006:45 -

1 stop9h 45m

Wed 7-1012:05 -

2 stops9h 00m

Deal found 13-9S$ 240

Tue 6-1013:51 -

Nonstop2h 13m

Thu 8-1021:36 -

Nonstop2h 16m

Deal found 17-9S$ 243

Fri 23-1020:46 -

Nonstop2h 17m

Mon 26-1021:36 -

Nonstop2h 16m

Deal found 16-9S$ 245

Fri 9-1022:45 -

Nonstop2h 30m

Sat 10-1007:11 -

Nonstop2h 19m

Deal found 16-9S$ 246

Fri 30-1020:46 -

Nonstop2h 17m

Thu 5-1119:33 -

Nonstop2h 10m

Deal found 14-9S$ 247

Sat 17-1006:30 -

1 stop8h 00m

Mon 19-1018:50 -

1 stop5h 50m

Deal found 16-9S$ 251

Find flight deals from San Francisco to Seattle

Round-trip from	S$ 219
One-way from	S$ 107
Popular in	July
Cheapest in	February
Average price	S$ 376
Good one-way deal	S$ 233 or less

Alaska Airlines
6-10-6-10
Nonstop
4h 25m total
San Francisco to Seattle

Search Deals

Southwest
12-12-31-12
1 total stop
5h 10m total
San Francisco to Seattle

Search Deals

Highest demand for flights based on searches. 9% potential increase in price (S$ 52 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (S$ 10 potential savings vs. average return price).

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Average for round-trip flights in September 2026

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Price to beat on a one-way flight from San Francisco to Seattle/Tacoma Intl.

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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San FranciscoSeattle

SFO San Francisco - SEA Seattle/Tacoma Intl

SFOSEA

San Francisco

Sat 12-12

17:50-20:04

Nonstop2h 14m

Seattle/Tacoma Intl

Wed 31-12

00:00-00:00

Nonstop0h 00m

S$ 113

San FranciscoSeattle

SFO San Francisco - SEA Seattle/Tacoma Intl

SFOSEA

San Francisco

Sat 3-10

05:00-11:55

1 stop6h 55m

Seattle/Tacoma Intl

Wed 31-12

00:00-00:00

Nonstop0h 00m

S$ 113

San FranciscoSeattle

SFO San Francisco - SEA Seattle/Tacoma Intl

SFOSEA

San Francisco

Thu 26-11

07:25-09:40

Nonstop2h 15m

Seattle/Tacoma Intl

Wed 31-12

00:00-00:00

Nonstop0h 00m

S$ 113

San FranciscoSeattle

SFO San Francisco - SEA Seattle/Tacoma Intl

SFOSEA

San Francisco

Tue 9-3

09:15-11:30

Nonstop2h 15m

Seattle/Tacoma Intl

Wed 31-12

00:00-00:00

Nonstop0h 00m

S$ 113

San FranciscoSeattle

SFO San Francisco - SEA Seattle/Tacoma Intl

SFOSEA

San Francisco

Thu 29-10

06:07-08:20

Nonstop2h 13m

Seattle/Tacoma Intl

Wed 31-12

00:00-00:00

Nonstop0h 00m

S$ 113

San FranciscoSeattle

SFO San Francisco - SEA Seattle/Tacoma Intl

SFOSEA

San Francisco

Tue 20-10

17:45-19:56

Nonstop2h 11m

Seattle/Tacoma Intl

Wed 31-12

00:00-00:00

Nonstop0h 00m

S$ 113

San FranciscoSeattle

SFO San Francisco - SEA Seattle/Tacoma Intl

SFOSEA

San Francisco

Sat 10-10

05:00-11:55

1 stop6h 55m

Seattle/Tacoma Intl

Wed 31-12

00:00-00:00

Nonstop0h 00m

S$ 126

Fastest return journey

San FranciscoSeattle

SFO San Francisco - SEA Seattle/Tacoma Intl

SFOSEA

San Francisco

Sun 28-2

21:22-23:21

Nonstop1h 59m

Seattle/Tacoma Intl

Wed 31-12

00:00-00:00

Nonstop0h 00m

S$ 133

San FranciscoSeattle

SFO San Francisco - SEA Seattle/Tacoma Intl

SFOSEA

San Francisco

Mon 26-10

15:15-22:35

2 stops7h 20m

Seattle/Tacoma Intl

Wed 31-12

00:00-00:00

Nonstop0h 00m

S$ 133

San FranciscoSeattle

SFO San Francisco - SEA Seattle/Tacoma Intl

SFOSEA

San Francisco

Thu 15-10

11:30-21:00

2 stops9h 30m

Seattle/Tacoma Intl

Wed 31-12

00:00-00:00

Nonstop0h 00m

S$ 133

Flights are sorted by cheapest return flights first.

Deals found on 15-9

Showing 1-10 of 23 resultsSorted by cheapest first

Best time to book a flight from San Francisco to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from San Francisco with our price prediction graph.

SFO-SEA

Estimated return 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 San Francisco to Seattle

Prices

Airlines

Delays

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

The best time to book flights from San Francisco to Seattle is 50 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from San Francisco to Seattle?

Currently, February is the cheapest month in which you can book a flight from San Francisco to Seattle (average of S$ 269). Flying from San Francisco to Seattle in July is currently the most expensive (average of S$ 441). 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 SFO to SEA?

One of the essential ways to save on airfare from San Francisco to Seattle is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 21% on airfare.

How much does it cost for a return flight from San Francisco to Seattle?

Airfare is below average for this route at the moment.

San Francisco to Seattle flights typically cost between S$ 251 and S$ 485 in October.
The cheapest return price found within the last 5 days was S$ 219 on Alaska Airlines (3 Oct–3 Oct).

Related info for your journey

How popular is this San Francisco to Seattle flight route?
This flight path from San Francisco to Seattle/Tacoma Intl was viewed by 5 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 San Francisco to Seattle?
For as low as S$ 269, Southwest can have you in Seattle from San Francisco in 2h 13m. Airlines will cover a distance of 1093 km. This flight may include one or multiple stops.
What are the most reliable airlines from San Francisco to Seattle?
Consider Air China (88%), WestJet (80%) or Emirates (77%) when booking your flight. These represent the most reliable airlines when flying from San Francisco to Seattle.
Can I find deals for flights from San Francisco to Seattle that include hotel bookings?
Yes. In addition to deals on San Francisco to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from San Francisco to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Seattle.
Can I find deals for business class flights from San Francisco to Seattle?
Yes. Cheapflights offers flight deals from San Francisco to Seattle 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 San Francisco to Seattle?
Currently, February is the cheapest month in which you can book a flight from San Francisco to Seattle (average of S$ 269). Flying from San Francisco to Seattle in July is currently the most expensive (average of S$ 441). 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.

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Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from San Francisco to Seattle. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from San Francisco to Seattle?

Millions of users choose and trust Cheapflights to book the best flight deals from San Francisco to Seattle for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from San Francisco to Seattle with no change fees?

Yes, we can. To see specific flights from San Francisco to Seattle with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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Not ready to book yet? You can track prices for flights from San Francisco to Seattle on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from San Francisco to Seattle from S$ 107

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12-12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from San Francisco to Seattle

Cheapest flights from San Francisco to SeattleExplore the most affordable flight options available from San Francisco to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Explore the most affordable flight options available from San Francisco to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Best flights from San Francisco to SeattleDiscover carefully curated flight deals from San Francisco to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Discover carefully curated flight deals from San Francisco to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Direct flights from San Francisco to SeattleExplore direct flight options from San Francisco to Seattle based on user searches, and compare prices and availability for your desired travel dates. Data last updated 17 September 2026.

Explore direct flight options from San Francisco to Seattle based on user searches, and compare prices and availability for your desired travel dates. Data last updated 17 September 2026.

Last-minute flights from San Francisco to SeattleDiscover last-minute flight deals from San Francisco to Seattle. Data last updated 17 September 2026 and is based on user searches.

Discover last-minute flight deals from San Francisco to Seattle. Data last updated 17 September 2026 and is based on user searches.

One-way flights from San Francisco to SeattleSearch for one-way flight options from San Francisco to Seattle. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.

Search for one-way flight options from San Francisco to Seattle. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.

Find flight deals from San Francisco to Seattle

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

Best time to book a flight from San Francisco to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from San Francisco with our price prediction graph.

Cheapflights Insights

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

The best time to book flights from San Francisco to Seattle is 50 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from San Francisco to Seattle?

What is the cheapest time of day to fly from SFO to SEA?

One of the essential ways to save on airfare from San Francisco to Seattle is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 21% on airfare.

How much does it cost for a return flight from San Francisco to Seattle?

Airfare is below average for this route at the moment.

San Francisco to Seattle flights typically cost between S$ 251 and S$ 485 in October.The cheapest return price found within the last 5 days was S$ 219 on Alaska Airlines (3 Oct–3 Oct).

Weekly flight availability from San Francisco to Seattle

The most flights from SFO to SEA are scheduled on a Monday (87 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (48 on average).

How often are flights from San Francisco to Seattle delayed?

About 18% of weekly flights between San Francisco and Seattle have experienced delays in the past year, with the average delay time being 134 minutes.

What is the most punctual flight time for San Francisco to Seattle flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on San Francisco to Seattle flights?

Over the past year, United Airlines have had the lowest number of delays on this route, with just 16% of flights being delayed.

Related info for your journey

How popular is this San Francisco to Seattle flight route?

How long is the flight from San Francisco to Seattle?

What are the most reliable airlines from San Francisco to Seattle?

Can I find deals for flights from San Francisco to Seattle that include hotel bookings?

How can I find direct flights from San Francisco to Seattle?

Can I find deals for business class flights from San Francisco to Seattle?

What is the cheapest month to book a flight from San Francisco to Seattle?

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How does Cheapflights help users find flights from San Francisco to Seattle?

Why should you use Cheapflights to find cheap flight tickets from San Francisco to Seattle?

Can Cheapflights find flights from San Francisco to Seattle with no change fees?

Can Cheapflights notify me if prices for flights from San Francisco to Seattle become cheaper?

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Cheapest flights from San Francisco to Seattle
Explore the most affordable flight options available from San Francisco to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Best flights from San Francisco to Seattle
Discover carefully curated flight deals from San Francisco to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Direct flights from San Francisco to Seattle
Explore direct flight options from San Francisco to Seattle based on user searches, and compare prices and availability for your desired travel dates. Data last updated 17 September 2026.

Last-minute flights from San Francisco to Seattle
Discover last-minute flight deals from San Francisco to Seattle. Data last updated 17 September 2026 and is based on user searches.

One-way flights from San Francisco to Seattle
Search for one-way flight options from San Francisco to Seattle. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.

San Francisco to Seattle flights typically cost between S$ 251 and S$ 485 in October.
The cheapest return price found within the last 5 days was S$ 219 on Alaska Airlines (3 Oct–3 Oct).