Question 1

How popular is this San Francisco to Seattle flight route?

Accepted Answer

Flights from San Francisco to Seattle/Tacoma Intl have been viewed 15 times in the past calendar month. Find deals

Question 2

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

Accepted Answer

Flying on Hawaiian Airlines is currently your cheapest option to Seattle, with prices starting at $216. Additional round-trip tickets that might be worth considering are offered by Delta and Alaska Airlines, with the lowest prices starting at $224 and $230, respectively. Hawaiian Airlines is 41% cheaper than the average price of flights available within the next 90 days to this destination. Find deals

Question 3

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

Accepted Answer

For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $105. Users have also found prices from $108 and $128 on Alaska Airlines and Southwest, respectively. Find deals

Question 4

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

Accepted Answer

To ensure you get the cheapest price possible for a flight from San Francisco to Seattle, you should look to book at least 64 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. Find deals

Question 5

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

Accepted Answer

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 $1,408). 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.

Question 6

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

Accepted Answer

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

Question 7

Weekly flight availability from San Francisco to Seattle

Accepted Answer

The most flights from SFO to SEA are scheduled on a Tuesday (114 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (30 on average).

Question 8

E

Accepted Answer

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.

Question 9

E

Accepted Answer

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).

Question 10

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

Accepted Answer

No one likes to see their flight delayed. When booking a flight from San Francisco to Seattle consider choosing Horizon Air(100%), WestJet(94%) or Aeromexico(93%), as they are the most reliable in getting you off to your destination on time.

Question 11

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

Accepted Answer

Monday flights are generally found to be more expensive for flights from San Francisco to Seattle. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Seattle.

Question 12

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

Accepted Answer

Users have found that booking a flight from San Francisco to Seattle at least 54 days early can save you up to 178% on average compared to booking a flight this week. If booking 54 days before your flight isn’t an option for you, users have found flights from San Francisco to Seattle for as little as $578 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 $800 for flights departing within the next 3 days.

Question 13

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

Accepted Answer

Flights from San Francisco to Seattle lean towards being more expensive in June. Prices are generally better when you fly from San Francisco to Seattle in October, with the cheapest ticket starting at $175.

Question 14

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

Accepted Answer

It’s typically best to fly out from San Francisco to Seattle at midday. Doing so could potentially save you 59% on the flight price compared to flying in the afternoon, which is usually more expensive.

Question 15

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

Accepted Answer

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 69 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 13m.

Question 16

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

Accepted Answer

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

Question 17

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

Accepted Answer

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.

Question 18

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

Accepted Answer

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.

Question 19

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

Accepted Answer

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Seattle from San Francisco today with Cheapflights!

Question 20

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

Accepted Answer

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!

Question 21

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

Accepted Answer

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.

Question 22

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

Accepted Answer

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.

Round-trip from	$216
One-way from	$105
Popular in	June
Cheapest in	October
Average price	$427

Cheap flights from San Francisco to Seattle from $105

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 16/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from San Francisco to Seattle/Tacoma Intl are usually found in October or January, booked 75 days in advance, depart on a Tuesday or Thursday and return on a Saturday

Cheap flight deals from San Francisco to Seattle

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find 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 2 heinäkuu 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 2 heinäkuu 2025.

Cheapflights Fare Finder

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

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?

Use this chart to determine the optimal time to book a return flight from San Francisco to Seattle. Price data was last updated on 27 June 2025.

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?

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 2 heinäkuu 2025.

Weekly flight availability from San Francisco to Seattle

Reviews of airlines servicing Seattle

See what other customers who have flown with Alaska Airlines, Southwest, andDelta from San Francisco to Seattle have to say. You can also see how each airline compares in terms of 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?

How popular is this San Francisco to Seattle flight route?

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

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

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?

Travelling to a place near San Francisco?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Francisco to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from San Francisco to Seattle

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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?

100% Free

Book with Flexibility

Travel Smart

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 2 heinäkuu 2025.