Question 1

How popular is this Seattle to San Francisco flight route?

Accepted Answer

This flight path from Seattle/Tacoma Intl to San Francisco was viewed by 504 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

Question 2

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

Accepted Answer

Currently priced at C$ 215, Alaska Airlines will fly you from Seattle to San Francisco and back. In addition to Alaska Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Southwest and Delta - these airlines can fly you to your destination from C$ 242 and C$ 247, respectively. Alaska Airlines is currently priced 32% below the average price you’ll pay for this route.

Question 3

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

Accepted Answer

C$ 108 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Alaska Airlines and Southwest, with prices starting from C$ 120 and C$ 122, respectively.

Question 4

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

Accepted Answer

Booking 50 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.

Question 5

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

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from Seattle to San Francisco (average of C$ 276). Flying from Seattle to San Francisco in December is currently the most expensive (average of C$ 368). 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 Seattle to San Francisco?

Accepted Answer

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

Question 7

Weekly flight availability from Seattle to San Francisco

Accepted Answer

The most flights from SEA to SFO are scheduled on a Thursday (124 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (41 on average).

Question 8

E

Accepted Answer

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 mm 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.

Question 9

E

Accepted Answer

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).

Question 10

What are the cheapest flights from Seattle to San Francisco?

Accepted Answer

The cheapest flight price from Seattle to San Francisco is C$ 90. On average you can expect to pay C$ 565. The most popular route, (Seattle/Tacoma Intl - San Francisco), can usually be booked for C$ 249.

Question 11

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

Accepted Answer

No one likes to see their flight delayed. When booking a flight from Seattle to San Francisco consider choosing Horizon Air (100%), WestJet (90%) or Aeromexico (88%) as they are the most reliable in getting you off to your destination on time.

Question 12

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

Accepted Answer

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

Question 13

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

Accepted Answer

Flights from Seattle to San Francisco are generally found to be more expensive on Tuesday. 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 San Francisco.

Question 14

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

Accepted Answer

Travellers have found it’s best to book a flight 51 days in advance to save up to 215% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 51 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Seattle to San Francisco 1-2 weeks in advance for as low as C$ 500, or C$ 733 for flights within the next 24 hours.

Question 15

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

Accepted Answer

September is one of the best times of the year to fly to San Francisco from Seattle. Prices for September average C$ 318 per person but you can even find prices for as low as C$ 157. The most expensive prices can be found in the month of June. Opting for a September flight can save you 17% on your journey compared to booking in June

Question 16

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

Accepted Answer

Unlike in the morning, when flights are generally more expensive, you can save up to 59% on flights from Seattle to San Francisco by exploring options for tickets in the evening.

Question 17

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

Accepted Answer

If you book a flight from Seattle to San Francisco, you will be flying from Seattle/Tacoma Intl to San Francisco. Flights to San Francisco (SFO) from Seattle/Tacoma Intl (SEA) take 2h 15m for a nonstop flight. There are 71 flights from Seattle/Tacoma Intl to San Francisco per day from 5 airlines.

Question 18

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

Accepted Answer

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

Question 19

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

Accepted Answer

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.

Question 20

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

Accepted Answer

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.

Question 21

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

Accepted Answer

Deals for Seattle to San Francisco flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Question 22

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

Accepted Answer

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

Question 23

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

Accepted Answer

Yes! Cheapflights helps users easily find flights from Seattle to San Francisco with no change fees.

Question 24

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

Accepted Answer

Yes! Start tracking prices for Seattle to San Francisco flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

Round-trip from	C$ 215
One-way from	C$ 108
Popular in	June
Cheapest in	September
Average price	C$ 375
Good round-trip deal	C$ 241 or less
Good one-way deal	C$ 198 or less

Airline	Cheapest	Average	Flexibility	On-time
Delta	CheapestC$ 94	AverageC$ 235	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Frontier	CheapestC$ 151	AverageC$ 310	FlexibilityNo cancel fee	On-time62%	Search Frontier flights
Alaska Airlines	CheapestC$ 159	AverageC$ 254	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights
United Airlines	CheapestC$ 205	AverageC$ 317	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Hawaiian Airlines	CheapestC$ 222	AverageC$ 251	FlexibilityNo cancel fee	On-time85%	Search Hawaiian Airlines flights

Cheap flights from Seattle to San Francisco from C$ 108

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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to San Francisco are usually found in September or January, booked 88 days in advance, depart on a Friday or Sunday and return on a Tuesday

Cheap flight deals from Seattle to San Francisco

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Find 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 12 June 2025.

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 12 June 2025.

Cheapflights Fare Finder

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to San Francisco. Price data was last updated on 9 June 2025.

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?

Find hourly flight availability from Seattle to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 June 2025.

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

Use this chart to determine the cheapest time to fly round-trip from Seattle to San Francisco. Price data was last updated on 8 June 2025.

Weekly flight availability from Seattle to San Francisco

Explore weekly flight availability from Seattle to San Francisco. 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 12 June 2025.

Rainfall in San Francisco by month

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

Temperature in San Francisco by month

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

Reviews of airlines servicing San Francisco

To help decide which airline to fly from Seattle to San Francisco, see what other customers have to say about Alaska Airlines, Southwest and Delta. Users have also rated airlines 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 Seattle to San Francisco. 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 Seattle to San Francisco?

How popular is this Seattle to San Francisco flight route?

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

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

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

What are the cheapest flights 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?

Travelling to a place near Seattle?

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Alternative routes for Seattle to San Francisco

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Top 5 airlines flying 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 12 June 2025.