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Cheap flights from San Francisco to Seattle from $111

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 19/2. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SEA
22 Jan — 29 Jan1
1 adult

The best prices from San Francisco to Seattle/Tacoma Intl are usually found in October or February, booked 83 days in advance, depart on a Monday or Wednesday and return on a Monday

Cheap flight deals from San Francisco to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 January 2025.

Round-trip from

$211

One-way from

$111

Popular in

June

Cheapest in

October

Average price

$344
Alaska Airlines
  • Alaska Airlines
  • 11/2-11/2
  • Nonstop
  • 4h 32m total
  • San Francisco to Seattle
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Delta
  • Delta
  • 19/2
  • Nonstop
  • 2h 25m total
  • San Francisco to Seattle
Search Deals
High demand for flights, 11% potential price rise
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Best time to find cheap flights, 1% potential price drop
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Average for round-trip flights in January 2025
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Find 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 17 January 2025.

Tue 11/207:00SFO - SEA
Nonstop2h 15mAlaska Airlines
Tue 11/211:30SEA - SFO
Nonstop2h 17mAlaska Airlines
Deal found 16/1$211
Thu 6/206:00SFO - SEA
Nonstop2h 19mMultiple Airlines
Mon 10/217:16SEA - SFO
1 stop14h 00mMultiple Airlines
Deal found 16/1$219
Wed 19/206:10SFO - SEA
Nonstop2h 25mDelta
Wed 26/206:10SEA - SFO
Nonstop2h 21mDelta
Deal found 17/1$220
Thu 6/215:20SFO - SEA
1 stop7h 10mUnited Airlines
Tue 18/206:15SEA - SFO
1 stop6h 05mUnited Airlines
Deal found 15/1$285
Wed 16/405:15SFO - SEA
1 stop7h 25mSouthwest
Tue 29/413:25SEA - SFO
2 stops9h 15mSouthwest
Deal found 16/1$338

Find flights from San Francisco to Seattle within your budget

Customise your flight search to find flights from San Francisco to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 17 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Tue 11/2

07:00-09:15

Nonstop2h 15m

Seattle/Tacoma Intl

Tue 11/2

11:30-13:47

Nonstop2h 17m

$211

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Thu 6/2

06:00-08:19

Nonstop2h 19m

Seattle/Tacoma Intl

Mon 10/2

17:16-07:16

1 stop14h 00m

$219

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Wed 19/2

06:10-08:35

Nonstop2h 25m

Seattle/Tacoma Intl

Wed 26/2

06:10-08:31

Nonstop2h 21m

$220

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Thu 20/2

13:35-15:54

Nonstop2h 19m

Seattle/Tacoma Intl

Sat 22/2

07:00-09:16

Nonstop2h 16m

$253

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Wed 16/4

05:15-12:40

1 stop7h 25m

Seattle/Tacoma Intl

Tue 29/4

13:25-22:40

2 stops9h 15m

$338

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Wed 19/2

06:10-08:35

Nonstop2h 25m

$111

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Tue 15/4

10:35-15:17

1 stop4h 42m

$126

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Fri 7/2

05:30-12:55

1 stop7h 25m

$143

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Tue 27/5

16:25-21:58

1 stop5h 33m

$151

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Fri 14/2

18:04-17:04

2 stops23h 00m

$723

Flights are sorted by cheapest return flights first.

Deals found on 16/1

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 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.

Travel insights for flights from San Francisco to Seattle

Get recent, data-driven insights about flights from San Francisco to Seattle including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a return flight from San Francisco to Seattle. Price data was last updated on 10 January 2025.

To ensure you get the cheapest price possible for a flight from San Francisco to Seattle, you should look to book at least 83 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, March is the cheapest month in which you can book a flight from San Francisco to Seattle (average of $875). Flying from San Francisco to Seattle in December is currently the most expensive (average of $1,490). 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?

Find hourly flight availability from San Francisco to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 January 2025.

It’s typically best to fly out from San Francisco to Seattle at midday. Doing so could potentially save you 33% on the flight price compared to flying in the morning, which is usually more expensive.

Weekly flight availability from San Francisco to Seattle

Explore weekly flight availability from San Francisco to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 17 January 2025.

The most flights from SFO to SEA are scheduled on a Thursday (95 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (29 on average).

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

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.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 17 January 2025.
To help decide which airline to fly from San Francisco to Seattle, see what other customers have to say about Alaska Airlines, United Airlines and Southwest. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very Good
4,659 reviews
Check prices

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

Southwest
8.1
Very Good
4,659 reviews
Southwest
8.1
Very Good
4,659 reviews
Check prices

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

Alaska Airlines
8.0
Very Good
9,684 reviews
Southwest
8.1
Very Good
4,659 reviews
Check prices

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

Delta
8.0
Very Good
8,513 reviews
Southwest
8.1
Very Good
4,659 reviews
Check prices

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

United Airlines
7.4
Good
8,969 reviews
Southwest
8.1
Very Good
4,659 reviews
Check prices

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very Good
4,659 reviews
Check prices

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early 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?

    You will need to book a flight from San Francisco to Seattle/Tacoma Intl if you want to fly from San Francisco to Seattle. At least 1 airline has flights from San Francisco (SFO) to Seattle/Tacoma Intl (SEA) on a regular basis. There are 60 flights to Seattle from the San Francisco airport per day. If you manage to book one that is nonstop, then you can expect the flight time from SFO to SEA to be around 2h 14m.

  • How popular is this San Francisco to Seattle flight route?

    Flights from San Francisco to Seattle/Tacoma Intl have been viewed 41 times in the past calendar month.

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

    Flying on Alaska Airlines is currently your cheapest option to Seattle, with prices starting at $211. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at $220 and $253, respectively. Alaska Airlines is 47% cheaper than the average price of flights available within the next 90 days to this destination.

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

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $111. Users have also found prices from $126 and $143 on Alaska Airlines and Southwest, respectively.

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

    No one likes to see their flight delayed. When booking a flight from San Francisco to Seattle consider choosing Aeromexico(94%), Air France(90%) or Horizon Air(88%), as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from San Francisco to Seattle?

    Looking at all options, your cheapest flight can be booked for $116. While the most popular route (San Francisco - Seattle/Tacoma Intl) can be booked for $219 on average our data indicates $234 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, March is the cheapest month in which you can book a flight from San Francisco to Seattle (average of $875). Flying from San Francisco to Seattle in December is currently the most expensive (average of $1,490). 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

Travelling to a place near San Francisco?

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Alternative routes for San Francisco to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Seattle flights
Los Angeles to Portland flights
San Francisco to Portland flights

Top airline flying from San Francisco to Seattle

Discover the top airline that operate flights from San Francisco to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 17 January 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$237Average$472FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

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

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Cheapflights helps you find that perfect flight to Seattle from San Francisco by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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Certainly. Search results for flights to Seattle from San Francisco shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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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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