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CA $205 Cheap Flights from St. Louis (STL) to Austin (AUS)

View CA $205 flight on Sun, Aug 2, 2026Opens in a new window

Popular airlines from Lambert-St. Louis International Airport (STL) to Austin-Bergstrom International Airport (AUS)

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Cheap flights from St. Louis (STL) to Austin (AUS)

Prices were available within the past 7 days and start at CA $205 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.) cost?
You can find cheap one-way flights from CA $205 and cheap return flights STL to AUS with Expedia. One-way flights typically cost between CA$174 and CA$953. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when STL to AUS ticket fares go up or down.
What is the cheapest month to fly from St. Louis, MO (STL) to Austin, TX (AUS)?
The cheapest months to fly from St. Louis, MO (STL) to Austin, TX (AUS) are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
Only one airline offers direct flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.). Southwest Airlines operates 19 direct flights from Lambert-St. Louis Intl. to Austin-Bergstrom Intl. every week.
What is the cheapest airline that flies from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
Louis Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.) starting from around CA$193. Louis Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.), with tickets starting from around CA$261 for flights that can be booked for departure within the next year. Southwest Airlines is one of the cheapest airlines offering nonstop return flights from St. Louis, MO (STL-Lambert-St. Frontier Airlines offers one of the cheapest connecting return flights from St. Louis, MO (STL-Lambert-St. These prices are per adult, for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from St. Louis, MO (STL) to Austin, TX (AUS)?
To find a cheap flight from St. Louis, MO (STL) to Austin, TX (AUS), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
The best airline to fly with from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.) will differ from traveler to traveler. If you like to fly early, Southwest Airlines offers early morning flights. If price is the most important factor, Southwest Airlines typically offers the lowest fares. Southwest Airlines offers the most daily flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
The cheapest months to fly from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.) are typically October and February, with average return flights around CA$387. However, the most popular months for this route are June and January, meaning you'll find plenty of flight options during those times. If you're looking for the best balance of price and availability, consider flying in October or February for more affordable fares, or in June and January if having a wide selection of flights is your top priority.
How many flights per day from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
You'll find around 3 nonstop flights per day from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.). For even more choices, look at flights that include layovers, as there are approximately 120 connecting flights per day. Some common connection points include O'Hare Intl. (ORD), Dallas-Fort Worth Intl. (DFW), and Hartsfield-Jackson Atlanta Intl. (ATL).
What is the earliest flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
The earliest flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.) typically departs around 5:00 AM. This flight is operated by American Airlines. This is a seasonal service active in November and December. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
You'll typically find the most flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.) on a Thursday, with around 74 flights available. This gives you a good selection of options for your journey. Major airlines on this route include Southwest Airlines, United, and American Airlines. Looking at the week, Thursday has notably more flight options compared to other days, offering you greater flexibility.
What are the most popular departure times for flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
The most popular departure times for flights from Lambert-St. Louis Intl. (STL) to Austin-Bergstrom Intl. (AUS) are in the morning, from 6am to 9am. Many major carriers, including Southwest Airlines, American Airlines and United, offer flights during this window. Many travellers prefer these early morning flights as they allow you to arrive at your destination with plenty of time to start your day.
How long does it take to fly from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
A nonstop flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.) typically takes around 2 hours. This route covers a distance of approximately 1,160 kilometres. If you opt for a flight with one stop, your travel time will be longer, usually around 5 hours 18 minutes. Flights with two or more stops can take even longer, often around 8 hours 48 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some extra time when planning your trip.
Can you fly business or first class from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
You can fly business class or first class between STL and AUS. You can fly business class with Frontier Airlines and Delta.First class cabins are available on Spirit Airlines, Alaska Airlines, United, Delta, and American Airlines.
How do I earn miles on a St. Louis, MO (STL-Lambert-St. Louis Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.) flight with Expedia?
It's easy to earn miles on a St. Louis, MO (STL-Lambert-St. Louis Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Austin, TX (AUS) from St. Louis, MO (STL)?
If you're planning to travel to Austin from Lambert-St. Louis Intl. (STL), you can fly directly into Austin-Bergstrom Intl. (AUS). Some flights may connect through major hubs like O'Hare Intl. (ORD), Clinton National Airport (LIT), or Midway Intl. (MDW) before reaching Austin. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.) at the last minute?
Typically, booking a last minute flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a St. Louis, MO (STL-Lambert-St. Louis Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.) flight and hotel package?
Securing a St. Louis, MO (STL-Lambert-St. Louis Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from St. Louis, MO (STL) to Austin, TX (AUS)?
If you booked your St. Louis, MO (STL) to Austin, TX (AUS) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Austin-Bergstrom Intl.
Distance
1153 km
Average flight time
3 hours 10 mins

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St. Louis to Austin Flights

The easy way to book your flights from St. Louis to Austin 

With Expedia, it’s simple to find and book flights to Austin from St. Louis whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 11 airlines that cover this route. There are nonstop flights to Austin-Bergstrom Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from St. Louis to Austin today, tomorrow, or this week.  

 

Save dollars with cheap flights from Lambert-St. Louis Intl., STL to Austin-Bergstrom Intl., AUS 

Sort your search results by price to find great deals on your flight from St. Louis to Austin—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Austin from St. Louis currently is just rising to .  

Here are more money-saving tips: 

  • Fly in when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Austin  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Austin from St. Louis 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Austin with Expedia today.

St. Louis to Austin Flights

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