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 Sunday 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 15% of weekly flights between San Francisco and Seattle have experienced delays in the past year, with the average delay time being 132 minutes.

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

Over the last year, Delta have had the lowest number of delays on this route, with just 10% of flights being delayed.

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

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

How popular is this San Francisco to Seattle flight route?

Within the past month, 125 users have taken a look at flights from San Francisco to Seattle/Tacoma Intl.

How long is the flight from San Francisco to Seattle?

There are many flights that can get you from San Francisco to Seattle in 5h 55m. Fly via Alaska Airlines or Southwest to get the fastest option. The distance from San Francisco to Seattle is about 679 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

Our cheapest airline available from San Francisco to Seattle is Delta. Our recent data shows that you can find tickets from as low as $97 on this airline. Additional options worth looking into are Frontier and Hawaiian Airlines, starting at $99 and $107 round-trip. Delta is currently priced 60% below the average price you’ll pay for this route.

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

To fly one-way, consider booking your trip with Southwest, which is currently one of the cheapest options available, starting at $52. Frontier flights start at $53 while deals on Delta start at $61 one-way.

Weekly flight availability from San Francisco to Seattle

The most flights from SFO to SEA are scheduled on a Monday (98 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (50 on average).

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

What are the cheapest flights from San Francisco to Seattle?

While on average a flight from San Francisco to Seattle is generally $651, our data shows the cheapest flight currently is $58. When looking at the most popular route, (San Francisco - Seattle/Tacoma Intl), you can expect to pay $88 for that flight.

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

Before booking your flight to Seattle from San Francisco, check out the most reliable airlines to get you to your destination on time: Horizon Air (100%), Aeromexico (95%), Air China( 91%).

What are the most popular airlines that fly from San Francisco to Seattle?

Alaska Airlines, United Airlines and Delta are the most popular airlines when flying from San Francisco to Seattle.

Most accurate provider : When it comes to deals on San Francisco-Seattle flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on San Francisco-Seattle flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from San Francisco-Seattle flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on San Francisco-Seattle flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airports do I use to fly from San Francisco to Seattle?

Seattle/Tacoma Intl is the airport most travelers will use when flying to Seattle from San Francisco. Booking flights from San Francisco (SFO) to Seattle/Tacoma Intl (SEA) should be relatively easy as there are 76 daily flights to Seattle from 6 different airlines. 2h 09m is how long a flight from San Francisco to Seattle/Tacoma Intl will take if you book a nonstop flight.

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 vacation 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.

$59+ Flights from San Francisco to Seattle

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

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Cheapflights Tip: The best prices from San Francisco to Seattle/Tacoma Intl are usually found in January or February, booked 64 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from San Francisco to Seattle

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 December 23, 2025.

Sun 12/2810:45 pmSFO - SEA

Nonstop2h 16mAlaska Airlines

Sun 1/258:25 amSEA - SFO

Nonstop2h 17mAlaska Airlines

Deal found 12/21

$311

Tue 12/306:30 pmSFO - SEA

Nonstop2h 20mDelta

Tue 3/311:45 pmSEA - SFO

Nonstop2h 19mDelta

Deal found 12/22

$317

Sun 12/2810:31 pmSFO - SEA

1 stop19h 07mFrontier

Sun 1/2512:34 pmSEA - SFO

1 stop11h 54mFrontier

Deal found 12/21

$340

Tue 12/306:30 pmSFO - SEA

Nonstop2h 20mDelta

Wed 4/19:45 pmSEA - SFO

Nonstop2h 12mDelta

Deal found 12/22

$347

Tue 12/305:42 pmSFO - SEA

Nonstop2h 15mAlaska Airlines

Thu 4/27:03 amSEA - SFO

Nonstop2h 17mAlaska Airlines

Deal found 12/22

$352

Mon 12/229:41 pmSFO - SEA

Nonstop2h 18mAlaska Airlines

Wed 1/211:36 pmSEA - SFO

Nonstop2h 14mAlaska Airlines

Deal found 12/22

$356

Tue 12/236:30 pmSFO - SEA

Nonstop2h 20mDelta

Sun 2/17:15 amSEA - SFO

Nonstop2h 20mDelta

Deal found 12/22

$357

Wed 12/315:42 pmSFO - SEA

Nonstop2h 15mMultiple Airlines

Thu 1/812:26 pmSEA - SFO

1 stop19h 37mMultiple Airlines

Deal found 12/21

$360

Wed 12/313:07 pmSFO - SEA

1 stop6h 25mMultiple Airlines

Mon 1/56:33 pmSEA - SFO

1 stop21h 20mMultiple Airlines

Deal found 12/21

$370

Best flights from San Francisco to Seattle
Discover carefully curated flight deals from San Francisco to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.

Mon 2/91:10 pmSFO - SEA

1 stop6h 07mAlaska Airlines

Thu 2/199:41 pmSEA - SFO

Nonstop2h 18mAlaska Airlines

Deal found 12/21

$132

Thu 1/155:45 pmSFO - SEA

1 stop5h 55mSouthwest

Sun 1/185:15 amSEA - SFO

1 stop6h 35mSouthwest

Deal found 12/22

$151

Thu 1/159:05 amSFO - SEA

Nonstop2h 24mUnited Airlines

Fri 1/165:10 pmSEA - SFO

Nonstop2h 18mUnited Airlines

Deal found 12/21

$164

Thu 1/156:00 amSFO - SEA

Nonstop2h 20mDelta

Mon 1/197:15 amSEA - SFO

Nonstop2h 20mDelta

Deal found 12/22

$167

Sat 1/2412:50 pmSFO - SEA

1 stop8h 20mSouthwest

Thu 1/296:05 amSEA - SFO

2 stops8h 15mSouthwest

Deal found 12/20

$156

Thu 1/157:57 amSFO - SEA

1 stop6h 46mAlaska Airlines

Sun 1/188:25 amSEA - SFO

1 stop3h 58mAlaska Airlines

Deal found 12/21

$166

Wed 2/112:35 pmSFO - SEA

Nonstop2h 19mDelta

Mon 2/165:10 pmSEA - SFO

Nonstop2h 16mDelta

Deal found 12/21

$167

Wed 1/215:05 amSFO - SEA

1 stop7h 00mSouthwest

Wed 1/286:05 amSEA - SFO

2 stops8h 15mSouthwest

Deal found 12/22

$156

Sun 1/188:15 amSFO - SEA

2 stops12h 05mSouthwest

Wed 1/216:05 amSEA - SFO

2 stops8h 15mSouthwest

Deal found 12/22

$161

Last-minute flights from San Francisco to Seattle
Discover last-minute flight deals from San Francisco to Seattle. Data last updated December 23, 2025 and is based on user searches.

Thu 1/88:48 amSFO - SEA

1 stop8h 49mMultiple Airlines

Mon 1/128:50 pmSEA - SFO

Nonstop2h 13mMultiple Airlines

Deal found 12/22

$135

Sat 1/107:57 amSFO - SEA

1 stop6h 46mAlaska Airlines

Tue 1/138:50 pmSEA - SFO

Nonstop2h 13mAlaska Airlines

Deal found 12/22

$134

Sun 1/119:50 amSFO - SEA

1 stop6h 48mDelta

Wed 1/147:15 amSEA - SFO

1 stop7h 53mDelta

Deal found 12/21

$127

Sun 1/117:57 amSFO - SEA

1 stop6h 46mAlaska Airlines

Mon 1/128:50 pmSEA - SFO

Nonstop2h 13mAlaska Airlines

Deal found 12/22

$130

Sun 1/116:00 amSFO - SEA

Nonstop2h 18mAlaska Airlines

Thu 1/158:25 amSEA - SFO

1 stop3h 58mAlaska Airlines

Deal found 12/22

$136

Wed 1/149:00 amSFO - SEA

Nonstop2h 21mAlaska Airlines

Tue 1/201:36 pmSEA - SFO

Nonstop2h 14mAlaska Airlines

Deal found 12/21

$122

Wed 1/146:18 pmSFO - SEA

Nonstop2h 16mAlaska Airlines

Sun 1/188:25 amSEA - SFO

1 stop3h 58mAlaska Airlines

Deal found 12/21

$123

Thu 1/159:05 amSFO - SEA

Nonstop2h 24mUnited Airlines

Mon 1/196:03 amSEA - SFO

Nonstop2h 22mUnited Airlines

Deal found 12/21

$126

Sat 1/176:18 pmSFO - SEA

Nonstop2h 16mAlaska Airlines

Tue 1/205:59 pmSEA - SFO

Nonstop2h 13mAlaska Airlines

Deal found 12/22

$144

Thu 1/222:58 pmSFO - SEA

1 stop3h 45mAlaska Airlines

Tue 1/278:50 pmSEA - SFO

Nonstop2h 13mAlaska Airlines

Deal found 12/22

$131

Fri 1/237:40 pmSFO - SEA

Nonstop2h 18mAlaska Airlines

Mon 1/2612:50 pmSEA - SFO

1 stop5h 53mAlaska Airlines

Deal found 12/22

$132

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 December 23, 2025.

Tue 1/208:25 amSFO - SEA

1 stop6h 29mDelta

Deal found 12/22

$59

Sun 1/119:50 amSFO - SEA

1 stop6h 48mDelta

Deal found 12/21

$69

Sun 1/256:15 amSFO - SEA

1 stop29h 04mFrontier

Deal found 12/21

$70

Sun 2/229:28 amSFO - SEA

1 stop25h 26mFrontier

Deal found 12/22

$73

Thu 3/196:30 amSFO - SEA

Nonstop2h 17mAlaska Airlines

Deal found 12/21

$74

Tue 1/205:30 amSFO - SEA

1 stop6h 50mSouthwest

Deal found 12/21

$76

Sat 1/246:00 amSFO - SEA

1 stop7h 49mAmerican Airlines

Deal found 12/20

$79

Wed 1/2111:10 amSFO - SEA

2 stops10h 40mSouthwest

Deal found 12/22

$81

Mon 1/197:57 amSFO - SEA

1 stop6h 46mAlaska Airlines

Deal found 12/22

$83

Fri 3/208:59 pmSFO - SEA

Nonstop2h 17mAlaska Airlines

Deal found 12/21

$84

Fri 2/208:18 pmSFO - SEA

2 stops15h 43mFrontier

Deal found 12/22

$89

Find flight deals from San Francisco to Seattle

Most accurate provider	CheapOair 3 stars
Most trusted provider	CheapOair 3 stars
Round-trip from	$122 (Alaska Airlines)
One-way from	$59 (Delta)
Popular in	December
Cheapest in	January
Average price	$305
Good round-trip deal	$226 or less
Good one-way deal	$133 or less

Provider with most accurate pricing for San Francisco-Seattle/Tacoma Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for San Francisco-Seattle/Tacoma Intl flights.

Search Deals

From San Francisco to Seattle/Tacoma Intl

Search Deals

One-way flight from San Francisco to Seattle/Tacoma Intl

Search Deals

Highest demand for flights based on searches. 6% potential increase in price ($17 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Price to beat on a round-trip flight from San Francisco to Seattle/Tacoma Intl.

Search Deals

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

Search Deals

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

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Mon 2/9

1:10 pm-7:17 pm

1 stop6h 07m

Seattle/Tacoma Intl

Thu 2/19

9:41 pm-11:59 pm

Nonstop2h 18m

$132

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Thu 1/15

5:45 pm-11:40 pm

1 stop5h 55m

Seattle/Tacoma Intl

Sun 1/18

5:15 am-11:50 am

1 stop6h 35m

$151

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Sat 1/24

12:50 pm-9:10 pm

1 stop8h 20m

Seattle/Tacoma Intl

Thu 1/29

6:05 am-2:20 pm

2 stops8h 15m

$156

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Wed 1/21

5:05 am-12:05 pm

1 stop7h 00m

Seattle/Tacoma Intl

Wed 1/28

6:05 am-2:20 pm

2 stops8h 15m

$156

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Sun 1/18

8:15 am-8:20 pm

2 stops12h 05m

Seattle/Tacoma Intl

Wed 1/21

6:05 am-2:20 pm

2 stops8h 15m

$161

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Thu 1/15

9:05 am-11:29 am

Nonstop2h 24m

Seattle/Tacoma Intl

Fri 1/16

5:10 pm-7:28 pm

Nonstop2h 18m

$164

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Thu 1/15

7:57 am-2:43 pm

1 stop6h 46m

Seattle/Tacoma Intl

Sun 1/18

8:25 am-12:23 pm

1 stop3h 58m

$166

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Thu 1/15

6:00 am-8:20 am

Nonstop2h 20m

Seattle/Tacoma Intl

Mon 1/19

7:15 am-9:35 am

Nonstop2h 20m

$167

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Wed 2/11

2:35 pm-4:54 pm

Nonstop2h 19m

Seattle/Tacoma Intl

Mon 2/16

5:10 pm-7:26 pm

Nonstop2h 16m

$167

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Wed 1/14

9:50 am-4:38 pm

1 stop6h 48m

$59

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 19 results

Compare providers for flights from San Francisco to Seattle

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Seattle in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Trip.com	Price Accuracy2 stars	Trust Score*3 stars
Cheapflightsfares	Price Accuracy3 stars	Trust Score*2 stars
Cheapfaremart	Price Accuracy-	Trust Score*1 star
Kiwi.com	Price Accuracy3 stars	Trust Score*3 stars
JustAirTicket	Price Accuracy-	Trust Score*1 star
CheapOair	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on San Francisco-Seattle flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on San Francisco-Seattle flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from San Francisco-Seattle flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on San Francisco-Seattle flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

Estimated round-trip 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 64 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, January is the cheapest month in which you can book a flight from San Francisco to Seattle (average of $82). Flying from San Francisco to Seattle in May is currently the most expensive (average of $137). 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?

A simple way to save on the total cost of your ticket is to fly from San Francisco to Seattle in the afternoon. If you’re flexible enough to do this you can expect to save up to 24% on your trip compared to booking a flight in the morning.

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

Travelers seeking maximum savings on their San Francisco to Seattle flight should consider departing on Friday afternoons when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

The best insider tips for San Francisco to Seattle flights

Cheapflights partnered with top experts to bring you the best recommendations for your San Francisco to Seattle trip

Airports

SFO

Save time by ordering meals for pickup from restaurants participating in the SFO2Go program during busy times.

SEA

Use the Link light rail for an inexpensive, convenient trip from SEA to downtown Seattle in under 40 minutes.

Our travel experts

Harriet Baskas

Expert on SFO

Brandon Schultz

Expert on SEA

Reviews of airlines servicing Seattle

Read through reviews of airlines operating flights from San Francisco to Seattle, such as Alaska Airlines, Delta, and Hawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

11,518 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

Alaska Airlines

8.0

Very good

11,518 reviews

Alaska Airlines

8.0

Very good

11,518 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

Delta

7.9

Good

8,015 reviews

Alaska Airlines

8.0

Very good

11,518 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

Hawaiian Airlines

7.8

Good

2,820 reviews

Alaska Airlines

8.0

Very good

11,518 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

United Airlines

7.4

Good

9,107 reviews

Alaska Airlines

8.0

Very good

11,518 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

Frontier

5.8

Fair

3,074 reviews

Alaska Airlines

8.0

Very good

11,518 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

Related info for your journey

What airports do I use to fly from San Francisco to Seattle?
Seattle/Tacoma Intl is the airport most travelers will use when flying to Seattle from San Francisco. Booking flights from San Francisco (SFO) to Seattle/Tacoma Intl (SEA) should be relatively easy as there are 76 daily flights to Seattle from 6 different airlines. 2h 09m is how long a flight from San Francisco to Seattle/Tacoma Intl will take if you book a nonstop flight.
How popular is this San Francisco to Seattle flight route?
Within the past month, 125 users have taken a look at flights from San Francisco to Seattle/Tacoma Intl.
How long is the flight from San Francisco to Seattle?
There are many flights that can get you from San Francisco to Seattle in 5h 55m. Fly via Alaska Airlines or Southwest to get the fastest option. The distance from San Francisco to Seattle is about 679 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from San Francisco to Seattle round-trip?
Our cheapest airline available from San Francisco to Seattle is Delta. Our recent data shows that you can find tickets from as low as $97 on this airline. Additional options worth looking into are Frontier and Hawaiian Airlines, starting at $99 and $107 round-trip. Delta is currently priced 60% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from San Francisco to Seattle one-way?
To fly one-way, consider booking your trip with Southwest, which is currently one of the cheapest options available, starting at $52. Frontier flights start at $53 while deals on Delta start at $61 one-way.
What are the most reliable airlines from San Francisco to Seattle?
Before booking your flight to Seattle from San Francisco, check out the most reliable airlines to get you to your destination on time: Horizon Air (100%), Aeromexico (95%), Air China( 91%).
What are the cheapest flights from San Francisco to Seattle?
While on average a flight from San Francisco to Seattle is generally $651, our data shows the cheapest flight currently is $58. When looking at the most popular route, (San Francisco - Seattle/Tacoma Intl), you can expect to pay $88 for that flight.
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 vacation 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, January is the cheapest month in which you can book a flight from San Francisco to Seattle (average of $82). Flying from San Francisco to Seattle in May is currently the most expensive (average of $137). 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

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Other flights to Seattle

Top 6 airlines flying from San Francisco to Seattle

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$101	Average$219	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$109	Average$197	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$126	Average$264	FlexibilityNo cancel fee	On-time69%
Hawaiian Airlines	Cheapest$130	Average$271	FlexibilityNo cancel fee	On-time85%
Alaska Airlines	Cheapest$135	Average$257	FlexibilityNo cancel fee	On-time75%
American Airlines	Cheapest$277	Average$393	FlexibilityNo cancel fee	On-time71%

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$59+ Cheap flights from San Francisco to Seattle (SFO - SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/20. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapflights Tip: The best prices from San Francisco to Seattle/Tacoma Intl are usually found in January or February, booked 64 days in advance, depart on a Friday or Thursday and return on a Friday

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 December 23, 2025.

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 December 23, 2025.

Find flight deals from San Francisco to Seattle

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Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Seattle in December.

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

Everything you need to know about your flight from San Francisco to Seattle

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

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Weekly flight availability from San Francisco to Seattle

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The best insider tips for San Francisco to Seattle flights

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Cheapflights partnered with top experts to bring you the best recommendations for your San Francisco to Seattle trip

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Reviews of airlines servicing Seattle

Read through reviews of airlines operating flights from San Francisco to Seattle, such as Alaska Airlines, Delta, and Hawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airports do I use to fly from San Francisco to Seattle?

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

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Alternative routes for San Francisco to Seattle

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Top 6 airlines flying from San Francisco to Seattle

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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 December 23, 2025.