$458 Cheap Flights from San Antonio (SAT) to Seattle (BFI)

View $458 flight on Tue, Feb 24, 2026Opens in a new window

Popular airlines from San Antonio International Airport (SAT) to Seattle, WA (BFI-Boeing Field)

Cheap Flights from San Antonio to Seattle (SAT-BFI)

Prices were available within the past 7 days and start at $458 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $228
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $228
Select flight to Snohomish County - Paine Field PAE. Average driving time to city center is 29 minutes. Flights from $434
PAE
Snohomish County - Paine Field
Average driving time to city center29 min
Flights from $434

Frequently asked questions

How much does a flight from San Antonio Intl. Airport (SAT) to Boeing Field Airport (BFI) cost?
Get a cheap one-way flight from $458 or cheap return flight from San Antonio Intl. Airport (SAT) to Boeing Field Airport (BFI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from San Antonio Intl. Airport (SAT) to Boeing Field Airport (BFI)?
Planning your trip for may help you find better deals, as it's the cheapest month for flights between SAT and BFI. You'll typically find the lowest fares during off-peak months.
What is the cheapest airline that flies from San Antonio Intl. Airport (SAT) to Boeing Field Airport (BFI)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest SAT to BFI flight.
How many flights per day from San Antonio Intl. Airport (SAT) to Boeing Field Airport (BFI)?
There are no daily nonstop flights from San Antonio Intl. Airport (SAT) to Boeing Field Airport (BFI). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from SAT to BFI?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* But this can change depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Antonio Intl. Airport (SAT) to Boeing Field Airport (BFI)?
To touch down at Boeing Field Airport (BFI) on schedule, book a flight that leaves San Antonio Intl. Airport (SAT) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Seattle from San Antonio Intl. Airport (SAT)?
Seattle - Tacoma Intl. Airport (SEA) is the only airport in Seattle with direct flights from San Antonio Intl. Airport (SAT). Browse the options and discover affordable fares on Expedia.
Is it cheaper to buy a plane ticket from San Antonio Intl. Airport (SAT) to Boeing Field Airport (BFI) last-minute?
Last-minute bookings from SAT to BFI are usually more expensive. To secure the lowest rates, start looking for flights as early as possible. That being said, if your travel plans are flexible, you may find a cheap ticket just before your departure.
Is it cheaper to book a SAT to BFI flight and hotel package?
You'll typically save money by securing a SAT to BFI flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. After choosing your ideal flights and accommodations, consider adding extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from San Antonio Intl. Airport (SAT) to Boeing Field Airport (BFI)?
In most cases, you can modify or cancel your SAT to BFI flight. However, there may be additional fees, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you'd like more details, go to our Customer Service portal.

Travel information

Origin airport
San Antonio Intl.
Destination airport
Boeing Field
Distance
1776 mi

Book with confidence

San Antonio to Seattle Flights

The cheapest times to fly from San Antonio to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Antonio to Seattle are during the month of . You can find some of the cheapest flights from San Antonio to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Antonio to Seattle

Sunday is one of the best days to book for cheap flights from San Antonio to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Antonio to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Antonio to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $458 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Antonio to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Antonio to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

San Antonio to Seattle Flights

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*Available to One Key members.