CA $129 Cheap Flights from Austin (AUS) to St. Louis (STL)

You can find cheap one-way flights from CA $129 and cheap return flights AUS to STL with Expedia. One-way flights typically cost between CA$240 and CA$615. 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 AUS to STL ticket fares go up or down.

If you're looking for the cheapest time to fly from Austin-Bergstrom Intl. (AUS) to Lambert-St. Louis Intl. (STL), September is typically your best bet. You can expect average return flights to be around CA$373 during this month. September often sees lower prices as the summer travel rush ends and before the holiday season begins, leading to reduced demand. Other budget-friendly months to consider for this route include April and May.

Only one airline offers direct flights from Austin-Bergstrom Intl. (AUS) to Lambert-St. Louis Intl. (STL).

Southwest Airlines operates 19 direct flights from Austin-Bergstrom Intl. to Lambert-St. Louis Intl. every week.

To find a cheap flight from Austin, TX (AUS) to St. Louis, MO (STL), 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.

The best airline to fly with from Austin, TX (AUS-Austin-Bergstrom Intl.) to St. Louis, MO (STL-Lambert-St. Louis 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 Austin, TX (AUS-Austin-Bergstrom Intl.) to St. Louis, MO (STL-Lambert-St. Louis 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.

The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.

You'll find approximately 3 nonstop flights per day from Austin-Bergstrom Intl. (AUS) to Lambert-St. Louis Intl. (STL). For even more choices, look at flights that include layovers, as there are around 126 connecting flights per day. Some common connection points include Dallas-Fort Worth Intl. (DFW), Hartsfield-Jackson Atlanta Intl. (ATL), and O'Hare Intl. (ORD).

The earliest flight from Austin-Bergstrom Intl. (AUS) to Lambert-St. Louis Intl. (STL) typically departs around 5:00 AM local time. This flight is operated by American Airlines and is a seasonal service, active in February 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.

You'll find the most flights from Austin-Bergstrom Intl. (AUS) to Lambert-St. Louis Intl. (STL) on a Friday, with around 79 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Southwest Airlines, American Airlines, and United. Fridays also have notably more flight options compared to other days of the week, making it a popular choice for travellers.

The most popular departure times for flights from Austin-Bergstrom Intl. (AUS) to Lambert-St. Louis Intl. (STL) are in the late afternoon, from 3pm to 6pm. Many major carriers, including Southwest Airlines, American Airlines and United, offer flights during this window. Many travellers prefer these times as they allow for a full day of activities before heading to the airport, and you'll arrive in St. Louis in the evening.

A non-stop flight from Austin-Bergstrom Intl. (AUS) to Lambert-St. Louis Intl. (STL) typically takes about 2 hours, covering a distance of approximately 1,160 kilometres. If you opt for a one-stop flight, your travel time will be longer, usually around 7 hours. Flights with two or more stops generally take about 10 hours. 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.

Yes, you can fly business class or first class between AUS and STL. You can fly business class with Frontier Airlines and Delta.

First class cabins are available on Spirit Airlines, Alaska Airlines, Delta, United, and American Airlines.

It's easy to earn miles on a Austin, TX (AUS-Austin-Bergstrom Intl.) to St. Louis, MO (STL-Lambert-St. Louis 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.

If you're planning to travel to St. Louis from Austin-Bergstrom Intl. (AUS), you can fly directly into Lambert-St. Louis Intl. (STL). Some flights may connect through major hubs like George Bush Intercontinental (IAH), Love Field (DAL), or William P. Hobby (HOU) before reaching St. Louis. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Typically, booking a last minute flight from Austin, TX (AUS-Austin-Bergstrom Intl.) to St. Louis, MO (STL-Lambert-St. Louis 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.

Securing a Austin, TX (AUS-Austin-Bergstrom Intl.) to St. Louis, MO (STL-Lambert-St. Louis 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.

If you booked your Austin, TX (AUS) to St. Louis, MO (STL) 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.