How often are flights from Seattle to San Francisco delayed?

About 31% of weekly flights between Seattle and San Francisco have experienced delays in the past year, with the average delay time being 126 minutes.

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

Tuesday 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.

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

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

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

Over the past year, Delta have had the lowest number of delays on this route, with just 28% of flights being delayed.

How popular is this Seattle to San Francisco flight route?

Within the past month, 1 users have taken a look at flights from Seattle/Tacoma Intl to San Francisco.

How long is the flight from Seattle to San Francisco?

A quick flight from Seattle to San Francisco can take about 2h 18m. Southwest provides one of the quickest options available for as low as S$ 224. The distance between Seattle and San Francisco is about 1093 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

Weekly flight availability from Seattle to San Francisco

The most flights from SEA to SFO are scheduled on a Friday (83 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (22 on average).

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

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

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Seattle to San Francisco on time: Air France (72%), SkyWest Airlines (65%), Qatar Airways (52%).

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 holiday 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.

S$ 100+ Cheap Flights from Seattle to San Francisco

Cheap flight deals from Seattle to San Francisco

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Cheapest flights from Seattle to San Francisco
Explore the most affordable flight options available from Seattle to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 September 2026.

Tue 27-1020:09 -

1 stop24h 23m

Tue 3-1119:25 -

1 stop23h 29m

Deal found 11-9S$ 170

Fri 2-1020:29 -

Nonstop2h 30m

Sun 4-1007:36 -

Nonstop2h 27m

Deal found 10-9S$ 173

Thu 8-1007:11 -

Nonstop2h 19m

Thu 15-1022:45 -

Nonstop2h 30m

Deal found 10-9S$ 182

Sat 24-1005:25 -

1 stop6h 50m

Sat 31-1005:10 -

1 stop5h 15m

Deal found 9-9S$ 185

Wed 30-907:11 -

Nonstop2h 19m

Sat 3-1021:07 -

Nonstop2h 20m

Deal found 9-9S$ 186

Thu 1-1015:51 -

1 stop4h 52m

Sun 4-1006:07 -

Nonstop2h 13m

Deal found 9-9S$ 187

Tue 3-1119:35 -

Nonstop2h 15m

Fri 6-1122:35 -

Nonstop2h 24m

Deal found 10-9S$ 189

Sat 24-1013:55 -

Nonstop2h 13m

Tue 27-1015:31 -

1 stop7h 02m

Deal found 10-9S$ 190

Sat 24-1007:50 -

1 stop6h 45m

Tue 27-1005:20 -

1 stop6h 05m

Deal found 10-9S$ 191

Sat 3-1020:36 -

Nonstop2h 13m

Mon 5-1016:43 -

1 stop5h 50m

Deal found 10-9S$ 194

Fri 25-1215:17 -

Nonstop2h 18m

Thu 31-1206:00 -

Nonstop2h 23m

Deal found 9-9S$ 195

Find flight deals from Seattle to San Francisco

Round-trip from	S$ 170
One-way from	S$ 100
Popular in	July
Cheapest in	January
Average price	S$ 339
Good one-way deal	S$ 289 or less

Frontier
27-10-3-11
2 total stops
47h 52m total
Seattle to San Francisco

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Alaska Airlines
11-11-31-12
Nonstop
2h 13m total
Seattle to San Francisco

Search Deals

Highest demand for flights based on searches. 9% potential increase in price (S$ 44 potential increase over avg. return price).

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Cheapest flight prices on average. 1% potential price decrease (S$ 8 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 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 return flight

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Tue 13-10

19:25-21:47

Nonstop2h 22m

San Francisco

Wed 31-12

00:00-00:00

Nonstop0h 00m

S$ 100

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Sat 3-10

09:45-17:45

2 stops8h 00m

San Francisco

Wed 31-12

00:00-00:00

Nonstop0h 00m

S$ 119

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Wed 28-10

12:05-21:05

2 stops9h 00m

San Francisco

Wed 31-12

00:00-00:00

Nonstop0h 00m

S$ 119

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Tue 8-12

05:15-11:45

2 stops6h 30m

San Francisco

Wed 31-12

00:00-00:00

Nonstop0h 00m

S$ 119

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Fri 11-12

06:45-11:30

1 stop4h 45m

San Francisco

Wed 31-12

00:00-00:00

Nonstop0h 00m

S$ 128

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Fri 9-10

07:11-09:30

Nonstop2h 19m

San Francisco

Wed 31-12

00:00-00:00

Nonstop0h 00m

S$ 134

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Tue 29-12

05:00-07:20

Nonstop2h 20m

San Francisco

Wed 31-12

00:00-00:00

Nonstop0h 00m

S$ 146

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Thu 1-10

07:11-09:30

Nonstop2h 19m

San Francisco

Wed 31-12

00:00-00:00

Nonstop0h 00m

S$ 151

Fastest return journey

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Sun 14-2

06:57-09:10

Nonstop2h 13m

San Francisco

Wed 31-12

00:00-00:00

Nonstop0h 00m

S$ 182

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Sat 31-10

11:15-18:20

1 stop7h 05m

San Francisco

Wed 4-11

07:00-13:00

1 stop6h 00m

S$ 191

Flights are sorted by cheapest return flights first.

Deals found on 11-9

Showing 1-10 of 22 resultsSorted by cheapest first

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.

SEA-SFO

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 Seattle to San Francisco

Prices

Airlines

Delays

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 S$ 237). Flying from Seattle to San Francisco in July is currently the most expensive (average of S$ 414). 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?

It’s optimal to fly from Seattle to San Francisco in the afternoon. By choosing this option you can save up to 96% on the cost of your flight, compared to a flight in the evening.

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

Airfare is below average for this route at the moment.

Seattle to San Francisco flights typically cost between S$ 243 and S$ 465 in October.
The cheapest return price found within the last 5 days was S$ 170 on Frontier (27 Oct–3 Nov).

Related info for your journey

How popular is this Seattle to San Francisco flight route?
Within the past month, 1 users have taken a look at flights from Seattle/Tacoma Intl to San Francisco.
How long is the flight from Seattle to San Francisco?
A quick flight from Seattle to San Francisco can take about 2h 18m. Southwest provides one of the quickest options available for as low as S$ 224. The distance between Seattle and San Francisco is about 1093 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the most reliable airlines from Seattle to San Francisco?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Seattle to San Francisco on time: Air France (72%), SkyWest Airlines (65%), Qatar Airways (52%).
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 holiday 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 S$ 237). Flying from Seattle to San Francisco in July is currently the most expensive (average of S$ 414). 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 Seattle to San Francisco. 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 Seattle to San Francisco?

Millions of users choose and trust Cheapflights to book the best flight deals from Seattle to San Francisco 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 Seattle to San Francisco with no change fees?

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

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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Cheap flights from Seattle to San Francisco from S$ 100

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13-10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Seattle to San Francisco

Cheapest flights from Seattle to San FranciscoExplore the most affordable flight options available from Seattle to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 September 2026.

Explore the most affordable flight options available from Seattle to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 September 2026.

Best flights from Seattle to San FranciscoDiscover carefully curated flight deals from Seattle to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 13 September 2026.

Discover carefully curated flight deals from Seattle to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 13 September 2026.

Direct flights from Seattle to San FranciscoExplore direct flight options from Seattle to San Francisco based on user searches, and compare prices and availability for your desired travel dates. Data last updated 13 September 2026.

Explore direct flight options from Seattle to San Francisco based on user searches, and compare prices and availability for your desired travel dates. Data last updated 13 September 2026.

Last-minute flights from Seattle to San FranciscoDiscover last-minute flight deals from Seattle to San Francisco. Data last updated 13 September 2026 and is based on user searches.

Discover last-minute flight deals from Seattle to San Francisco. Data last updated 13 September 2026 and is based on user searches.

One-way flights from Seattle to San FranciscoSearch for one-way flight options from Seattle to San Francisco. Find affordable one-way fares based on user searches. Data last updated 13 September 2026.

Search for one-way flight options from Seattle to San Francisco. Find affordable one-way fares based on user searches. Data last updated 13 September 2026.

Find flight deals from Seattle to San Francisco

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

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.

Cheapflights Insights

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?

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

It’s optimal to fly from Seattle to San Francisco in the afternoon. By choosing this option you can save up to 96% on the cost of your flight, compared to a flight in the evening.

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

Airfare is below average for this route at the moment.

Seattle to San Francisco flights typically cost between S$ 243 and S$ 465 in October.The cheapest return price found within the last 5 days was S$ 170 on Frontier (27 Oct–3 Nov).

Weekly flight availability from Seattle to San Francisco

The most flights from SEA to SFO are scheduled on a Friday (83 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (22 on average).

How often are flights from Seattle to San Francisco delayed?

About 31% of weekly flights between Seattle and San Francisco have experienced delays in the past year, with the average delay time being 126 minutes.

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

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

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

Tuesday 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 Seattle to San Francisco flights?

Over the past year, Delta have had the lowest number of delays on this route, with just 28% of flights being delayed.

Related info for your journey

How popular is this Seattle to San Francisco flight route?

How long is the flight from Seattle to San Francisco?

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

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

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

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

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

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

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

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

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

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Cheapest flights from Seattle to San Francisco
Explore the most affordable flight options available from Seattle to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 September 2026.

Best flights from Seattle to San Francisco
Discover carefully curated flight deals from Seattle to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 13 September 2026.

Direct flights from Seattle to San Francisco
Explore direct flight options from Seattle to San Francisco based on user searches, and compare prices and availability for your desired travel dates. Data last updated 13 September 2026.

Last-minute flights from Seattle to San Francisco
Discover last-minute flight deals from Seattle to San Francisco. Data last updated 13 September 2026 and is based on user searches.

One-way flights from Seattle to San Francisco
Search for one-way flight options from Seattle to San Francisco. Find affordable one-way fares based on user searches. Data last updated 13 September 2026.

Seattle to San Francisco flights typically cost between S$ 243 and S$ 465 in October.
The cheapest return price found within the last 5 days was S$ 170 on Frontier (27 Oct–3 Nov).