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Find Austin to St. Louis flights starting at CAD 89.

Book one-way or return flights from Austin to St. Louis from as little as CAD 89. Choose from the popular airlines below and book your flight today!

  • One way
  • Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Searching for the best last minute flight from Austin to St. Louis? Find one-way or return flights that are affordable and fit your itinerary.

Trip.com monitors the ticket fares of flights from Austin to St. Louis. Stay updated on price trends and snag the best deals for your upcoming trip.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Find Cheapest Airlines Flying from Austin to St. Louis

View airlines operating flights from Austin to St. Louis. Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Frontier Airlines
From CAD 89
American Airlines
From CAD 124
Delta Air Lines
From CAD 124
United Airlines
From CAD 160
Southwest Airlines
From CAD 174
Spirit Airlines
From CAD 191
Alaska Airlines
From CAD 334
ANA airlines

Find more flights and airlines

Alternative Routes for Austin to St. Louis Flights

Discover different routes, airlines, and transfers and find the best alternative flights for your journey from Austin to St. Louis.

  • Cheapest
    Frontier Airlines
    AUS
    22:40
    11h 38m
    1 transfer
    STL
    10:18
    Austin–Bergstrom International Airport - St.Louis Lambert International Airport
    Fri, May 10Frontier Airlines
    CAD 89
  • Frontier Airlines
    AUS
    22:40
    11h 38m
    1 transfer
    STL
    10:18
    Austin–Bergstrom International Airport - St.Louis Lambert International Airport
    Fri, May 10Frontier Airlines
    CAD 89
    Find More Flights

How do I find the cheapest flights?

  • When are flight tickets from Austin (AUS) to St. Louis (STL) the cheapest?

    Airlines adjust prices for flights from Austin to St. Louis based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much are flights from Austin (AUS) to St. Louis (STL) cost?

    According to Trip.com's data, the lowest price is around CAD 462.
  • How long is the flight from Austin (AUS) to St. Louis (STL)?

    It takes about 2 hours 3 minutes to fly from Austin (AUS) to St. Louis (STL).
  • What is the transportation method from the main airport to downtown in St. Louis?

    • The distance from St. Louis Lambert International Airport to downtown is about 20km, by taxi about 40 minutes.
  • What are the most popular airlines that fly from Austin (AUS) to St. Louis (STL)?

    Airlines with flights from Austin (AUS) to St. Louis (STL): Southwest Airlines.
  • What's the most popular airline for direct flights from Austin (AUS) to St. Louis (STL)?

    Alaska Airlines operates 2 direct flights from Austin (AUS) to St. Louis (STL).
  • How many airports in St. Louis (STL)?

How to find a cheap flight from Austin to St. Louis

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Austin to St. Louis. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com
Flight Information for Austin to St. Louis Flights

Cheapest direct flight price

CAD 89

Cheapest month

May

Peak season for travel

October

Flight distance

1,156.91km

Average flight time

2 hours 3 minutes

Popular airline

United Airlines