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Not ready to book? to track prices.Find the cheapest flights from San Francisco to Seattle
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Hawaiian Airlines flights from San Francisco to Seattle
Our best Hawaiian Airlines deals on San Francisco to Seattle flight tickets
Southwest flights from San Francisco to Seattle
Our best Southwest deals on San Francisco to Seattle flight tickets
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How to get the cheapest flight ticket from San Francisco to Seattle
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 Seattle?
The month of October is, on average, the cheapest month to fly to Seattle from San Francisco, with most prices found around $302. If you are unable to visit Seattle during the month of October, then departing from San Francisco during the month January is also very affordable. Most momondo users find prices during this month for around $307.
What is the cheapest day to depart on your flight to Seattle?
The cheapest day to depart from San Francisco to Seattle is on a Sunday. Travellers who choose to depart for Seattle on a Sunday will often find tickets for as low as $376. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from San Francisco to Seattle for around $709.
What is the cheapest time of day to depart on your flight to Seattle?
According to our data, the cheapest time of day to fly to Seattle is in the afternoon. momondo users have found flights departing from San Francisco to Seattle in the afternoon for as low as $294. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Seattle is in the evening when prices are around $709.
What is the cheapest San Francisco to Seattle/Tacoma Intl flight route?
Fly from San Francisco to Seattle/Tacoma Intl for the best San Francisco - Seattle/Tacoma Intl flight prices
How far in advance should I book a flight to Seattle?
You are more likely to see cheaper flights to Seattle from San Francisco when booking 26 weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $369 when searching 26 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from San Francisco for as low as $230 on momondo.
What cabin class options are available on San Francisco to Seattle/Tacoma Intl flights?
There are 4 cabin classes available to choose from on San Francisco to Seattle/Tacoma Intl 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 San Francisco to Seattle on average per day?
As of June 2025, 59 flights take off from San Francisco and land in Seattle each day. The most common flight departure time for this route is 16:00, with 37% of daily flights taking off in the afternoon.
How many flights depart from San Francisco to Seattle on average per week?
As of June 2025, 413 flights take off from San Francisco and land in Seattle each week. The most common flight departure day for this route is Thu, with 27% of weekly flights taking off on this day.
When to book flights from San Francisco to Seattle
Cheap San Francisco to Seattle (SFO to SEA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from San Francisco to Seattle
How far is San Francisco to Seattle/Tacoma Intl by plane?
There are 1091.5 km between San Francisco and Seattle/Tacoma Intl. In terms of flight time, this usually takes a little over 2h 04m.
When did momondo last update prices for flights from San Francisco Airport to Seattle/Tacoma Intl Airport?
Prices for flights from San Francisco Airport to Seattle/Tacoma Intl Airport are updated daily.
How many operators does momondo search for flights from San Francisco Airport to Seattle/Tacoma Intl Airport?
There is 1 operator available for flights from San Francisco Airport to Seattle/Tacoma Intl Airport as of June 2025.
How old do you have to be to fly from San Francisco Airport to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Francisco Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from San Francisco to Seattle?
Based on momondo bookings for flights between San Francisco and Seattle, the leading plane model is Boeing 737-900 Passenger/BBJ3 (winglets), making up 16.35% of the total bookings. Other popular models include Boeing 737-800 Passenger/BBJ2 (winglets) with 15.19%, Boeing 737-900 with 10.68%, and Boeing 737 MAX 9 with 10.10%.
What is the most popular airline from San Francisco to Seattle?
Based on momondo bookings for this flight route, the most popular airline on flight routes from San Francisco to Seattle is Alaska Airlines (100% of total bookings).
Best airlines flying from San Francisco to Seattle
Compare and see reviews for airlines that fly from San Francisco to Seattle with momondo
| Airline | Rating | Free cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $226 | Free cancellation | Rating 8.0 10,000 reviews |
Alaska Airlines Flights From San Francisco to Seattle
Across 10 Alaska Airlines flights from San Francisco to Seattle this week, the average price was $199, with the best Alaska Airlines deals starting from $147 round-trip. 10,000 users have rated Alaska Airlines on momondo, with an average score of 8.0/10.
Travelling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from San Francisco to Seattle?
Finding the right flight to Seattle from San Francisco is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seattle quick and easy, saving you time and money.
Can I find flights from San Francisco to Seattle with flexible booking policies on momondo?
Yes. All flights to Seattle from San Francisco on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from San Francisco to Seattle?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seattle from San Francisco.
I’m not ready to book a flight from San Francisco to Seattle right now. Can momondo alert me if prices change?
Price alerts on flights to Seattle from San Francisco are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.