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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
$174
Southwest Airlines
• 1 stop
• 9h 15m
Aug 14 – Aug 17
The cheapest round trip flight from Seattle to San Antonio (SEA-SAT-SEA) is currently $174
Cheapest One way Flight
$77
United Airlines
• 2 stops
• 15h 42m
Aug 17
The cheapest one way flight from Seattle to San Antonio (SEA-SAT) is currently $77
Cheapest Direct Flight
$374
United Airlines
• nonstop
• 10h 43m
Aug 14
The cheapest nonstop flight from Seattle to San Antonio (SEA-SAT) is currently $374
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 14 - Aug 17, Economy
Seattle → San Antonio
9h 15m
6:15 AM - 2:10 PM • 1 stop
Seattle → San Antonio
13h 35m
6:00 AM - 12:15 PM • 1 stop
Southwest Airlines
Aug 14 - Aug 17, Economy
Seattle → San Antonio
15h
11:00 PM - 10:00 AM • 1 stop
Seattle → San Antonio
10h 30m
5:35 AM - 10:05 AM • 1 stop
Southwest Airlines
Aug 14 - Aug 17, Economy
Seattle → San Antonio
15h 6m
6:05 AM - 5:11 PM • 1 stop
Seattle → San Antonio
10h 2m
6:03 PM - 10:05 PM • 1 stop
Delta Airlines
Aug 14 - Aug 17, Economy
Seattle → San Antonio
15h 13m
10:35 PM - 9:48 AM • 1 stop
Seattle → San Antonio
10h 2m
6:03 PM - 10:05 PM • 1 stop
Delta Airlines
Aug 14 - Aug 17, Economy
Seattle → San Antonio
13h 44m
5:30 AM - 3:54 PM • 1 stop
Seattle → San Antonio
10h 15m
12:39 PM - 4:54 PM • 1 stop
Delta Airlines
Explore competitive one-way airfare options for SEA - SAT flights. Best suited for flexible or open-ended travel plans.
Flying to San Antonio soon? We've surfaced some of the most affordable last-minute flights from Seattle to San Antonio, ideal for urgent plans or spontaneous trips.
Aug 14 - Aug 17, Economy
Seattle → San Antonio
9h 15m
6:15 AM - 2:10 PM • 1 stop
Seattle → San Antonio
13h 35m
6:00 AM - 12:15 PM • 1 stop
Southwest Airlines
Aug 14 - Aug 17, Economy
Seattle → San Antonio
15h
11:00 PM - 10:00 AM • 1 stop
Seattle → San Antonio
10h 30m
5:35 AM - 10:05 AM • 1 stop
Southwest Airlines
Aug 14 - Aug 17, Economy
Seattle → San Antonio
15h 6m
6:05 AM - 5:11 PM • 1 stop
Seattle → San Antonio
10h 2m
6:03 PM - 10:05 PM • 1 stop
Delta Airlines
Aug 14 - Aug 17, Economy
Seattle → San Antonio
15h 13m
10:35 PM - 9:48 AM • 1 stop
Seattle → San Antonio
10h 2m
6:03 PM - 10:05 PM • 1 stop
Delta Airlines
Aug 14 - Aug 17, Economy
Seattle → San Antonio
13h 44m
5:30 AM - 3:54 PM • 1 stop
Seattle → San Antonio
10h 15m
12:39 PM - 4:54 PM • 1 stop
Delta 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 14 - Aug 17, Economy
Seattle → San Antonio
10h 43m
1:16 PM - 9:59 PM • nonstop
Seattle → San Antonio
19h 1m
1:45 PM - 11:26 PM • nonstop
United Airlines
Aug 14 - Aug 17, 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 5:30 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 UA : USD 77
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 11:00 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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