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Not ready to book? to track prices.Find the cheapest flights from Seattle to San Francisco
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Hawaiian Airlines flights from Seattle to San Francisco
Our best Hawaiian Airlines deals on Seattle to San Francisco flight tickets
United Airlines flights from Seattle to San Francisco
Our best United Airlines deals on Seattle to San Francisco flight tickets
See travel insights to San Francisco from
How to get the cheapest flight ticket from Seattle to San Francisco
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to San Francisco?
The month of September is, on average, the cheapest month to fly to San Francisco from Seattle, with most prices found around £148. If you are unable to visit San Francisco during the month of September, then departing from Seattle during the month January is also very affordable. Most momondo users find prices during this month for around £152.
What is the cheapest day to depart on your flight to San Francisco?
The cheapest day to depart on your flight to San Francisco is on a Tuesday when prices can be found for as low as £186. This is often the case because there is less demand to fly during this day of the week. Flights from Seattle to San Francisco on a Thursday will generally be more expensive and average around £580. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to San Francisco?
Our most recent data shows that the best time of day to fly to San Francisco is in the morning. Flights from Seattle to San Francisco during this time can be as low as £182. Try not to purchase tickets in the afternoon because they tend to be around £879. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest Seattle/Tacoma Intl to San Francisco flight route?
Fly from Seattle/Tacoma Intl to San Francisco for the best Seattle/Tacoma Intl - San Francisco flight prices
How far in advance should I book a flight to San Francisco?
You are more likely to see cheaper flights to San Francisco from Seattle when booking 21 weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around £171 when searching 21 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Seattle for as low as £124 on momondo.
What cabin class options are available on Seattle/Tacoma Intl to San Francisco flights?
There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
How many flights depart from Seattle to San Francisco on average per day?
As of June 2025, 71 flights take off from Seattle and land in San Francisco each day. The most common flight departure time for this route is 17:00, with 44% of daily flights taking off in the afternoon.
How many flights depart from Seattle to San Francisco on average per week?
498 flights are operational weekly from Seattle to San Francisco as of June 2025. The most popular departure day for this route is Thu, with 25% of flights per week taking off on this day.
When to book flights from Seattle to San Francisco
Cheap Seattle to San Francisco (SEA to SFO) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to San Francisco
Best price found | £57 |
|---|---|
Fastest flight time | 2h 11m |
Direct flights | Every day |
Airports in San Francisco | 1 airport |
How far is Seattle/Tacoma Intl to San Francisco by plane?
The distance between Seattle/Tacoma Intl and San Francisco is about 678.2 mi. Typically, this will take 2h 11m by plane in normal conditions.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to San Francisco Airport?
Prices for flights from Seattle/Tacoma Intl Airport to San Francisco Airport are updated daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to San Francisco Airport?
The number of operators available for flights from Seattle/Tacoma Intl Airport to San Francisco Airport is 1 as of June 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to San Francisco Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The travel and health documents required for your trip to San Francisco Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Francisco Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Seattle to San Francisco?
Based on momondo bookings for flights between Seattle and San Francisco, the leading plane model is Boeing 737-900 Passenger/BBJ3 (winglets), making up 16.18% of the total bookings. Other popular models include Boeing 737-800 Passenger/BBJ2 (winglets) with 15.99%, Boeing 737 MAX 9 with 10.99%, and Boeing 737-900 with 9.92%.
What is the most popular airline from Seattle to San Francisco?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Seattle to San Francisco is Alaska Airlines (100% of total bookings).
Best airlines flying from Seattle to San Francisco
Compare and see reviews for airlines that fly from Seattle to San Francisco with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £81 | Free Cancellation | Rating 8.0 10,000 reviews |
Alaska Airlines Flights From Seattle to San Francisco
Alaska Airlines flight deals from Seattle to San Francisco start from £111 round-trip. Over the 17 Alaska Airlines flights for this route in a normal week, average airfare is usually £243 round-trip - but some users have found much cheaper deals with momondo.
Travelling to a place near San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Seattle to San Francisco?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Francisco from Seattle.
Can I find flights from Seattle to San Francisco with flexible booking policies on momondo?
Flights from Seattle to San Francisco with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Seattle to San Francisco?
Once you have performed a search for Seattle to San Francisco flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Seattle to San Francisco right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Seattle to San Francisco flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.