Cheap Flights from San Antonio to St. Louis

Featured airlines

Singapore Airlines
AirAsia
Scoot
Philippine Airlines
Malaysia Airlines
Thai Airways International
Asiana Airlines
Qatar Airways
Air India

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 40% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in
San Antonio to St. Louis route information
Origin airport
San Antonio Intl.
Destination airport
Lambert-St. Louis Intl.
Distance
1258 km

Flights from San Antonio to St. Louis

When looking for plane tickets from San Antonio to St. Louis, the ease and convenience of using Expedia simply can’t be beat. With tons of departure points and flights options from the top airline carriers, Expedia gives you the widest array of cheap flights to St. Louis. Look for SAT to STL airfare with the assurance that you have the largest online travel agency working for you.

Expedia lets you search across the largest number of airlines and St. Louis flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your San Antonio St. Louis flight!

Browse through dozens of options and rest assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your San Antonio to St. Louis trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your St. Louis flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from San Antonio to St. Louis with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!

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 . 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.
*Available to Expedia members.