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Uncover the best deals on Seattle to San Antonio flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest SEA - SAT Flights
Useful information for finding best airline tickets from Seattle Tacoma International to San Antonio International on your next trip.
Cheapest Round Trip Flight
$342
Southwest Airlines
• 1 stop
• 15h 20m
Aug 10 – Aug 12
The cheapest round trip flight from Seattle to San Antonio (SEA-SAT-SEA) is currently $342
Cheapest Direct Flight
$448
Alaska Airlines
• nonstop
• 6h 42m
Aug 10
The cheapest nonstop flight from Seattle to San Antonio (SEA-SAT) is currently $448
Fastest Flight
6h 42m
The fastest nonstop flight from Seattle to San Antonio (SEA-SAT) takes 6h 42m
Top Airlines Flying from Seattle to San Antonio
Latest Flight Deals from Seattle (SEA) to San Antonio (SAT)
Compare and book low fare round-trip air tickets from Seattle to San Antonio. Ideal for travelers with confirmed return itineraries.
Aug 10 - Aug 12, Economy
Seattle → San Antonio
15h 20m
11:00 PM - 10:20 AM • 1 stop
Seattle → San Antonio
10h 35m
6:30 PM - 11:05 PM • 1 stop
Southwest Airlines
Aug 10 - Aug 12, Economy
Seattle → San Antonio
35h 44m
8:53 PM - 8:37 PM • 1 stop
Seattle → San Antonio
7h 3m
7:02 AM - 9:25 AM • nonstop
Frontier Airlines
Aug 10 - Aug 12, Economy
Seattle → San Antonio
11h 57m
11:16 PM - 8:33 AM • 1 stop
Seattle → San Antonio
10h 27m
3:43 PM - 8:10 PM • 1 stop
American Airlines
Aug 10 - Aug 12, Economy
Seattle → San Antonio
6h 48m
9:38 AM - 3:46 PM • nonstop
Seattle → San Antonio
12h 16m
8:54 AM - 2:30 PM • 1 stop
Alaska Airlines
Aug 11 - Aug 13, Economy
Seattle → San Antonio
15h 2m
11:48 AM - 10:50 PM • 1 stop
Seattle → San Antonio
10h 23m
8:27 PM - 12:50 AM • 1 stop
American Airlines
Looking for the fastest way to San Antonio? These direct flight options from SEA to SAT offer both convenience and value—no layovers, just straight to your destination.
Aug 10 - Aug 12, Economy
Seattle → San Antonio
6h 42m
10:58 PM - 5:00 AM • nonstop
Seattle → San Antonio
7h 3m
7:02 AM - 9:25 AM • nonstop
Alaska Airlines
Aug 10 - Aug 12, Economy
Seattle → San Antonio
6h 48m
9:38 AM - 3:46 PM • nonstop
Seattle → San Antonio
7h 3m
7:02 AM - 9:25 AM • nonstop
Alaska Airlines
Aug 10 - Aug 12, Economy
Seattle → San Antonio
6h 42m
10:58 PM - 5:00 AM • nonstop
Seattle → San Antonio
7h 3m
7:02 AM - 9:25 AM • nonstop
Alaska Airlines
Aug 11 - Aug 13, Economy
Seattle → San Antonio
6h 42m
10:58 PM - 5:00 AM • nonstop
Seattle → San Antonio
7h 3m
7:02 AM - 9:25 AM • nonstop
Alaska Airlines
Aug 11 - Aug 13, Economy
Seattle → San Antonio
6h 48m
9:38 AM - 3:46 PM • nonstop
Seattle → San Antonio
7h 3m
7:02 AM - 9:25 AM • nonstop
Alaska Airlines
FAQs on Seattle to San Antonio Flights
What are the airports in Seattle?
SEA
What’s the most popular airline flying from SEA to SAT?
The most popular airline flying from Seattle to San Antonio are
Can I fly from SEA to SAT non-stop?
Yes, you can fly SEA to SAT non-stop on
Which airlines fly nonstop between Seattle and San Antonio?
The non-stop flights between Seattle and San Antonio are .
What’s the earliest departure time from SEA to SAT Airport?
The earliest flight leaves SEA at 9:38 am and lands in SAT - San Antonio International
What are the airports in San Antonio?
SAT
Can I make changes to my Seattle to San Antonio flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from SEA to SAT?
Read the fare rules of the Seattle to San Antonio air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Seattle and San Antonio?
operate flights between Seattle and San Antonio
How long does a flight from Seattle to San Antonio take?
It takes approximately 4 hour to fly non-stop from SEA to SAT, which is 1774.27 miles by air.
Which airlines provide the cheapest flights from Seattle (SEA) to San Antonio (SAT) ?
In the past couple of days, the cheapest tickets to SAT from SEA were found on WN : USD 342
Do I need a passport to fly between SEA and SAT?
No
What’s the latest departure time from SEA to SAT ?
The last flight leaves SEA at 11:16 pm
Seattle (SEA) to San Antonio (SAT): Airport Information
| Origin Airport | Seattle Tacoma International , Seattle, US |
| Destination Airport | San Antonio International , San Antonio, US |
| Distance | 1774 miles |
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