$98 Cheap Flights from San Antonio (SAT) to Seattle (SEA)

View $98 flight on Fri, Jul 25, 2025Opens in a new window

Popular airlines from San Antonio International Airport (SAT) to Seattle-Tacoma International Airport (SEA)

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

Prices were available within the past 7 days and start at $98 for one-way flights and $190 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Tue, Sep 16 - Thu, Sep 25
SAT
San Antonio
SEA
Seattle
$190 Roundtrip, just found
$190
Roundtrip
just found
Select Southwest Airlines flight, departing Tue, Sep 16 from San Antonio to Seattle, returning Thu, Sep 25, priced at $190 just found
Southwest Airlines
Fri, Aug 15 - Sun, Aug 24
SAT
San Antonio
SEA
Seattle
$195 Roundtrip, just found
$195
Roundtrip
just found
Select Southwest Airlines flight, departing Fri, Aug 15 from San Antonio to Seattle, returning Sun, Aug 24, priced at $195 just found
American Airlines
Sat, Oct 4 - Sat, Oct 11
SAT
San Antonio
SEA
Seattle
$195 Roundtrip, just found
$195
Roundtrip
just found
Select American Airlines flight, departing Sat, Oct 4 from San Antonio to Seattle, returning Sat, Oct 11, priced at $195 just found
Frontier Airlines
Sat, Sep 13 - Sat, Sep 20
SAT
San Antonio
SEA
Seattle
$195 Roundtrip, just found
$195
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Sep 13 from San Antonio to Seattle, returning Sat, Sep 20, priced at $195 just found
Frontier Airlines
Sat, Oct 4 - Sat, Oct 11
SAT
San Antonio
SEA
Seattle
$195 Roundtrip, just found
$195
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Oct 4 from San Antonio to Seattle, returning Sat, Oct 11, priced at $195 just found
Frontier Airlines
Sat, Aug 16 - Mon, Aug 25
SAT
San Antonio
SEA
Seattle
$196 Roundtrip, just found
$196
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Aug 16 from San Antonio to Seattle, returning Mon, Aug 25, priced at $196 just found
Southwest Airlines
Tue, Sep 9 - Sat, Sep 13
SAT
San Antonio
SEA
Seattle
$200 Roundtrip, just found
$200
Roundtrip
just found
Select Southwest Airlines flight, departing Tue, Sep 9 from San Antonio to Seattle, returning Sat, Sep 13, priced at $200 just found
Southwest Airlines
Wed, Aug 27 - Fri, Sep 5
SAT
San Antonio
SEA
Seattle
$201 Roundtrip, just found
$201
Roundtrip
just found
Select Southwest Airlines flight, departing Wed, Aug 27 from San Antonio to Seattle, returning Fri, Sep 5, priced at $201 just found
Delta
Mon, Jul 28 - Tue, Aug 5
SAT
San Antonio
SEA
Seattle
$202 Roundtrip, found 3 hours ago
$202
Roundtrip
found 3 hours ago
Select Delta flight, departing Mon, Jul 28 from San Antonio to Seattle, returning Tue, Aug 5, priced at $202 found 3 hours ago
United
Sat, Aug 23 - Sun, Aug 31
SAT
San Antonio
SEA
Seattle
$208 Roundtrip, found 3 hours ago
$208
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Aug 23 from San Antonio to Seattle, returning Sun, Aug 31, priced at $208 found 3 hours ago

Find the cheapest month to fly from San Antonio (SAT) to Seattle (SEA)

September is typically the cheapest month to fly

From $91 - $194 per traveler.

Graph displaying average flight prices per month

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 $253
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $253
Flights from San Antonio (SAT) to Seattle (SEA)
Origin airport
San Antonio Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, Sun Country Airlines, United
Roundtrip price
$189
Distance
1773 mi
Average flight time
2 hours 20 mins

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 September. 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 $98 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.

 

Frequently asked questions

How much does a flight from San Antonio Intl. Airport (SAT) to Seattle - Tacoma Intl. Airport (SEA) cost?
You can score affordable return tickets from San Antonio Intl. Airport (SAT) to Seattle - Tacoma Intl. Airport (SEA) starting at $232. Grab your seat and get ready to go. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Alaska Airlines flight leaving SAT on July 29 2025 and touching down at SEA. The price was last updated on July 3 2025 and has not changed since.
What is the cheapest month to fly from SAT to SEA?
The cheapest flights from SAT to SEA are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from San Antonio Intl. Airport (SAT) to Seattle - Tacoma Intl. Airport (SEA)?
Take a nonstop flight with Alaska Airlines and journey straight from San Antonio Intl. Airport (SAT) to Seattle - Tacoma Intl. Airport (SEA).
What is the cheapest airline that flies from SAT to SEA?
With tickets starting at $139 for a one-way journey from SAT to SEA, Alaska Airlines is currently the cheapest carrier for this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SAT on August 28 2025. Prices were last updated on July 3 2025 and have not changed since.
How many flights per day from San Antonio Intl. Airport (SAT) to Seattle - Tacoma Intl. Airport (SEA)?
On average, you can take your pick of 5 direct flights flying from San Antonio Intl. Airport (SAT) to Seattle - Tacoma Intl. Airport (SEA) each week. If you don't see one that suits your schedule, consider catching a flight that has a layover. Customize your search results on Expedia to include one or two stops and choose the next best alternative.
What are the most popular departure times for flights from San Antonio Intl. Airport (SAT) to Seattle - Tacoma Intl. Airport (SEA)?
More passengers fly between SAT and SEA at 3 PM than at any other time. Looking to skip the crowds? Pick a flight outside the busiest times and there's a chance you'll save on your ticket as well.
What day of the week has the most flights from SAT to SEA?
If you fly on a Friday, you'll get the biggest range of options for flights from San Antonio Intl. Airport (SAT) to Seattle - Tacoma Intl. Airport (SEA).
What is the earliest flight from San Antonio Intl. Airport (SAT) to Seattle - Tacoma Intl. Airport (SEA)?
Take the earliest flight at around 3:03PM UTC-6, departing from San Antonio Intl. Airport (SAT). You'll be traveling for roughly 4h 37m, reaching Seattle - Tacoma Intl. Airport (SEA) at approximately 5:40PM UTC-8.
How long does it take to fly from San Antonio Intl. Airport (SAT) to Seattle - Tacoma Intl. Airport (SEA)?
Flights from SAT to SEA have an average travel time of 4 hours and 37 minutes. The total distance between these two airports is 1,800 mi.
What is the best time to fly from San Antonio Intl. Airport (SAT) to Seattle - Tacoma Intl. Airport (SEA)?
To reach Seattle - Tacoma Intl. Airport (SEA) on schedule, select a flight that takes off from San Antonio Intl. Airport (SAT) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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). Consider your options and find affordable fares on Expedia.
Is it cheaper to buy a plane ticket from San Antonio Intl. Airport (SAT) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Holding off until just before your departure to book a flight from SAT to SEA generally means paying more. While you might find some last-minute offers, they aren't always guaranteed. Be flexible with your travel plans to boost your chances of getting a bargain.
Is it cheaper to book a SAT to SEA flight and hotel package?
You can save money by booking a SAT to SEA 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 everything in one place. After selecting your preferred accommodations and flights, you can add extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from San Antonio Intl. Airport (SAT) to Seattle - Tacoma Intl. Airport (SEA)?
Usually, it's possible to cancel or reschedule your SAT to SEA flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

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