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

View AU$152 flight on Thu, 13 Nov 2025Opens in a new window

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

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

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

Delta
Thu, 13 Nov - Wed, 19 Nov
SEA
Seattle
SAT
San Antonio
AU$303 Return, found 3 days ago
AU$303
Return
found 3 days ago
Select Delta flight, departing Thu, 13 Nov from Seattle to San Antonio, returning Wed, 19 Nov, priced at AU$303 found 3 days ago
American Airlines
Thu, 13 Nov - Wed, 19 Nov
SEA
Seattle
SAT
San Antonio
AU$317 Return, found 3 days ago
AU$317
Return
found 3 days ago
Select American Airlines flight, departing Thu, 13 Nov from Seattle to San Antonio, returning Wed, 19 Nov, priced at AU$317 found 3 days ago
American Airlines
Thu, 13 Nov - Wed, 19 Nov
SEA
Seattle
SAT
San Antonio
AU$350 Return, found 3 days ago
AU$350
Return
found 3 days ago
Select American Airlines flight, departing Thu, 13 Nov from Seattle to San Antonio, returning Wed, 19 Nov, priced at AU$350 found 3 days ago
Delta
Sun, 9 Nov - Sat, 15 Nov
SEA
Seattle
SAT
San Antonio
AU$351 Return, found 6 days ago
AU$351
Return
found 6 days ago
Select Delta flight, departing Sun, 9 Nov from Seattle to San Antonio, returning Sat, 15 Nov, priced at AU$351 found 6 days ago
Delta
Thu, 13 Nov - Wed, 19 Nov
SEA
Seattle
SAT
San Antonio
AU$365 Return, found 3 days ago
AU$365
Return
found 3 days ago
Select Delta flight, departing Thu, 13 Nov from Seattle to San Antonio, returning Wed, 19 Nov, priced at AU$365 found 3 days ago
Alaska Airlines
Thu, 13 Nov - Wed, 19 Nov
SEA
Seattle
SAT
San Antonio
AU$365 Return, found 3 days ago
AU$365
Return
found 3 days ago
Select Alaska Airlines flight, departing Thu, 13 Nov from Seattle to San Antonio, returning Wed, 19 Nov, priced at AU$365 found 3 days ago
United
Thu, 13 Nov - Wed, 19 Nov
SEA
Seattle
SAT
San Antonio
AU$365 Return, found 3 days ago
AU$365
Return
found 3 days ago
Select United flight, departing Thu, 13 Nov from Seattle to San Antonio, returning Wed, 19 Nov, priced at AU$365 found 3 days ago
Alaska Airlines
Sun, 9 Nov - Sat, 15 Nov
SEA
Seattle
SAT
San Antonio
AU$366 Return, found 6 days ago
AU$366
Return
found 6 days ago
Select Alaska Airlines flight, departing Sun, 9 Nov from Seattle to San Antonio, returning Sat, 15 Nov, priced at AU$366 found 6 days ago
Delta
Thu, 13 Nov - Wed, 19 Nov
SEA
Seattle
SAT
San Antonio
AU$379 Return, found 3 days ago
AU$379
Return
found 3 days ago
Select Delta flight, departing Thu, 13 Nov from Seattle to San Antonio, returning Wed, 19 Nov, priced at AU$379 found 3 days ago
Delta
Thu, 13 Nov - Wed, 19 Nov
SEA
Seattle
SAT
San Antonio
AU$382 Return, found 3 days ago
AU$382
Return
found 3 days ago
Select Delta flight, departing Thu, 13 Nov from Seattle to San Antonio, returning Wed, 19 Nov, priced at AU$382 found 3 days ago

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

September is typically the cheapest month to fly

From AU$185 - AU$294 per traveller.
Flight from Seattle to San Antonio route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
San Antonio Intl.
Return price
AU$303
Distance
2836 km
Average flight time
7 hours 15 mins

Your quick guide to flights from Seattle to San Antonio

Pick up great flights from Seattle to San Antonio

With Expedia, you have your pick of flights a day with 20 airlines covering flights from Seattle to San Antonio. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Seattle to San Antonio that take around hours.

Find cheap flights from Seattle to San Antonio

From the great flight deals with prices currently ranging from AU$303 to AU$382, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Seattle to San Antonio around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to San Antonio is normally in November.

Reasons to book your flight from Seattle to San Antonio with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Seattle to San Antonio across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to San Antonio right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Frequently asked questions

How much is a flight from SEA to San Antonio Intl. Airport (SAT)?
If you're travelling between Sea-Tac Airport and SAT, round-trip flights start from AU$303. This price is based on fares listed within the last 7 days on Expedia for flights departing within the next year, so don't delay. Book now and save yourself both money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SEA to SAT?
Every air carrier has its own set of terms and conditions. If you do decide to cancel, follow the easy instructions on our Customer Service Portal.
How do I find cheap flights from Seattle - Tacoma Intl. Airport (SEA) to San Antonio Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Sea-Tac Airport to San Antonio Intl. Airport (SAT) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Seattle - Tacoma Intl. Airport (SEA) to San Antonio Airport?
The flying distance between Seattle - Tacoma Intl. Airport (SEA) and San Antonio Intl. Airport (SAT) is 2 900 kilometres. Listen to some music or make a start on the latest bestseller and the journey will fly by.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to SAT?
Offering 30 flights every month, Alaska Airlines (AS) is a great choice when flying straight from SEA to SAT.
Are Sea-Tac Airport to San Antonio Airport flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from SEA to San Antonio Airport can be hit-or-miss. You might be lucky and score a bargain, but then again, you could miss out entirely! If you'd rather start your trip planning ahead of time, Expedia compares flight deals up to a year in advance. Just keep in mind that not all airlines issue their prices so far in advance. Our top tip? Check back often as prices are updated frequently.

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