S$227 Cheap Flights from San Antonio to St. Louis

View S$227 flight on Sun, 3 May, 2026Opens in a new window

Popular airlines from San Antonio International Airport (SAT) to St. Louis Lambert Intl. Airport (STL)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 40% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from San Antonio to St. Louis (SAT-STL)

Prices were available within the past 7 days and start at S$227 for one-way flights and S$437 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sun, 3 May - Mon, 4 May
SAT
San Antonio
STL
St. Louis
S$437 Return, found 5 days ago
S$437
Return
found 5 days ago
Select Delta flight, departing Sun, 3 May from San Antonio to St. Louis, returning Mon, 4 May, priced at S$437 found 5 days ago
Delta
Sun, 3 May - Mon, 4 May
SAT
San Antonio
STL
St. Louis
S$482 Return, found 5 days ago
S$482
Return
found 5 days ago
Select Delta flight, departing Sun, 3 May from San Antonio to St. Louis, returning Mon, 4 May, priced at S$482 found 5 days ago
American Airlines
Sun, 3 May - Mon, 4 May
SAT
San Antonio
STL
St. Louis
S$483 Return, found 5 days ago
S$483
Return
found 5 days ago
Select American Airlines flight, departing Sun, 3 May from San Antonio to St. Louis, returning Mon, 4 May, priced at S$483 found 5 days ago
United
Sun, 3 May - Mon, 4 May
SAT
San Antonio
STL
St. Louis
S$489 Return, found 5 days ago
S$489
Return
found 5 days ago
Select United flight, departing Sun, 3 May from San Antonio to St. Louis, returning Mon, 4 May, priced at S$489 found 5 days ago
Delta
Sun, 3 May - Mon, 4 May
SAT
San Antonio
STL
St. Louis
S$494 Return, found 5 days ago
S$494
Return
found 5 days ago
Select Delta flight, departing Sun, 3 May from San Antonio to St. Louis, returning Mon, 4 May, priced at S$494 found 5 days ago
Delta
Sun, 3 May - Mon, 4 May
SAT
San Antonio
STL
St. Louis
S$515 Return, found 5 days ago
S$515
Return
found 5 days ago
Select Delta flight, departing Sun, 3 May from San Antonio to St. Louis, returning Mon, 4 May, priced at S$515 found 5 days ago
American Airlines
Sun, 3 May - Mon, 4 May
SAT
San Antonio
STL
St. Louis
S$522 Return, found 5 days ago
S$522
Return
found 5 days ago
Select American Airlines flight, departing Sun, 3 May from San Antonio to St. Louis, returning Mon, 4 May, priced at S$522 found 5 days ago
American Airlines
Sun, 3 May - Mon, 4 May
SAT
San Antonio
STL
St. Louis
S$527 Return, found 5 days ago
S$527
Return
found 5 days ago
Select American Airlines flight, departing Sun, 3 May from San Antonio to St. Louis, returning Mon, 4 May, priced at S$527 found 5 days ago
Delta
Sun, 3 May - Mon, 4 May
SAT
San Antonio
STL
St. Louis
S$533 Return, found 5 days ago
S$533
Return
found 5 days ago
Select Delta flight, departing Sun, 3 May from San Antonio to St. Louis, returning Mon, 4 May, priced at S$533 found 5 days ago
United
Sun, 3 May - Mon, 4 May
SAT
San Antonio
STL
St. Louis
S$534 Return, found 5 days ago
S$534
Return
found 5 days ago
Select United flight, departing Sun, 3 May from San Antonio to St. Louis, returning Mon, 4 May, priced at S$534 found 5 days ago

Frequently asked questions

How much is a flight from San Antonio Airport to St. Louis Lambert International Airport?
Based on fares available within the last 7 days on Expedia for flights departing within the next year, round-trip journeys from San Antonio Intl. Airport (SAT) to Lambert Field start from S$437. Book today to get the best price for your trip. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SAT to St. Louis Lambert International Airport?
We understand that things come up unexpectedly, so we've made it as simple as possible for you to cancel your trip online. Just visit the Customer Service Portal and follow the instructions.
How do I find cheap flights from San Antonio Intl. Airport (SAT) to Lambert Field 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 SAT to Lambert-St. Louis Intl. Airport (STL) flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from San Antonio Intl. Airport (SAT) to St. Louis Lambert International Airport?
There are plenty of ways to make the 4 hours and 52 minutes between San Antonio Airport and Lambert-St. Louis Intl. Airport (STL) go by faster. Be productive and sort through your camera roll or delete all those backed-up emails. A snooze also helps pass the time!
How far is the flight from SAT to Lambert Field?
It's just 1,250 kilometres between San Antonio and St. Louis. It's quite possible that you'll spend more time getting to and from the airport than you will actually flying!
Which airlines fly direct from San Antonio Intl. Airport (SAT) to Lambert-St. Louis Intl. Airport (STL)?
A popular option with many savvy travellers, Southwest Airlines (WN) operates 30 monthly flights from San Antonio Intl. Airport (SAT) to St. Louis Lambert International Airport. Pick the one that fits with your travel plans and book your seat today.
Are San Antonio Airport to STL flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from SAT to St. Louis Lambert International Airport can be hit-or-miss. It is possible to score a bargain, but you could also miss out completely! If you'd prefer to play it safe and start planning your trip early on, Expedia compares flight deals up to a year in advance. Just remember that not all airlines issue their prices that far in advance. Our suggestion? Check back often as updates are made regularly.

Travel information

Origin airport
San Antonio Intl.
Destination airport
Lambert-St. Louis Intl.
Return price
S$436
Distance
1258 km
Average flight time
2 hours 10 mins

Explore a world of travel with Expedia

*Available to Expedia members.