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

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The best prices from Lambert-St Louis to Austin Bergstrom are usually found in August or January, booked 19 days in advance, depart on a Tuesday or Wednesday and return on a Saturday

How to find the cheapest flight from
St. Louis (STL) to Austin (AUS)

All the information you need to plan the best STL to AUS flight in 2021: compare St. Louis to Austin flight prices with the expected peak season, weather and rainfall in Austin.
STL - AUS
Price
$175 - $294
AUS
Temperature
50 - 84.2 °F
AUS
Precipitation
2.1 - 4.2 inches

Popular in

October

High demand for flights, 20% potential price rise

Cheapest in

August

Best time to find cheap flights, 26% potential price drop

Round-trip from

$175

From Lambert-St Louis to Austin Bergstrom

One-way from

$151

One-way flight from Lambert-St Louis to Austin Bergstrom

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
How far in advance should I book a flight from St. Louis to Austin?

Travelers have found it’s best to book a flight 19 days in advance to save up to 32% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 19 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from St. Louis to Austin 1-2 weeks in advance for as low as $222, or $311 for flights within the next 24 hours.

What is the cheapest day to fly round-trip from St. Louis to Austin?

Users have found that flying from St. Louis to Austin on a Wednesday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

What is the cheapest month to fly from St. Louis to Austin?

August is one of the best times of the year to fly to Austin from St. Louis. Prices for August average $235 per person but you can even find prices for as low as $126. The most expensive prices can be found in the month of October. Opting for a August flight can save you 25% on your journey compared to booking in August

When is the cheapest time to fly from St. Louis to Austin (STL - AUS)?

When flying from St. Louis to Austin, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 21% versus a flight in the afternoon.

Cheap flights from St. Louis to Austin in October, November 2021

The best prices found for STL to AUS flights for October, November
5 Nov - 7 Nov
$122pp
STL
Lambert-St Louis
Spirit Airlines
 
1 STOP
AUS
Austin Bergstrom
AUS
Austin Bergstrom
Spirit Airlines
 
1 STOP
STL
Lambert-St Louis
6 Nov - 9 Nov
$128pp
STL
Lambert-St Louis
Frontier
 
1 STOP
AUS
Austin Bergstrom
AUS
Austin Bergstrom
Frontier
 
1 STOP
STL
Lambert-St Louis
10 Nov - 16 Nov
$129pp
STL
Lambert-St Louis
American Airlines
Non-Stop
AUS
Austin Bergstrom
AUS
Austin Bergstrom
American Airlines
Non-Stop
STL
Lambert-St Louis

Lambert-St Louis to Austin 2021 flight deals

Cheap flights to Austin from St. Louis found for this year
13 Dec - 15 Dec
$121pp
STL
Lambert-St Louis
Spirit Airlines
 
1 STOP
AUS
Austin Bergstrom
AUS
Austin Bergstrom
Spirit Airlines
 
1 STOP
STL
Lambert-St Louis
5 Nov - 7 Nov
$122pp
STL
Lambert-St Louis
Spirit Airlines
 
1 STOP
AUS
Austin Bergstrom
AUS
Austin Bergstrom
Spirit Airlines
 
1 STOP
STL
Lambert-St Louis
6 Nov - 9 Nov
$128pp
STL
Lambert-St Louis
Frontier
 
1 STOP
AUS
Austin Bergstrom
AUS
Austin Bergstrom
Frontier
 
1 STOP
STL
Lambert-St Louis

Non-stop flights to Austin from St. Louis

Save time with St. Louis to Austin direct flight deals
10 Nov - 16 Nov
$129pp
STL
Lambert-St Louis
American Airlines
Non-Stop
AUS
Austin Bergstrom
AUS
Austin Bergstrom
American Airlines
Non-Stop
STL
Lambert-St Louis
20 Nov - 21 Nov
$153pp
STL
Lambert-St Louis
American Airlines
Non-Stop
AUS
Austin Bergstrom
AUS
Austin Bergstrom
American Airlines
Non-Stop
STL
Lambert-St Louis
11 Nov - 13 Nov
$158pp
STL
Lambert-St Louis
American Airlines
Non-Stop
AUS
Austin Bergstrom
AUS
Austin Bergstrom
American Airlines
Non-Stop
STL
Lambert-St Louis

Last minute flights from St. Louis to Austin

Late deals on round-trip flights to Austin from St. Louis, departing today and this week
2 Nov - 1 Dec
$133pp
STL
Lambert-St Louis
Frontier
 
1 STOP
AUS
Austin Bergstrom
AUS
Austin Bergstrom
Frontier
 
1 STOP
STL
Lambert-St Louis
4 Nov - 8 Nov
$140pp
STL
Lambert-St Louis
Spirit Airlines
 
1 STOP
AUS
Austin Bergstrom
AUS
Austin Bergstrom
Spirit Airlines
 
1 STOP
STL
Lambert-St Louis
1 Nov - 1 Dec
$144pp
STL
Lambert-St Louis
Spirit Airlines
 
1 STOP
AUS
Austin Bergstrom
AUS
Austin Bergstrom
Spirit Airlines
 
1 STOP
STL
Lambert-St Louis

One-way flights to Austin Bergstrom from St. Louis

The cheapest one-way flights from St. Louis to Austin
3:05 pm - 2:05 pm
Frontier
1 Stop
23h 00m
STL - AUS
Frontier
$151
Kiwi.com
3:00 am - 9:01 am
Spirit Airlines
3 Stops
30h 01m
STL - AUS
Spirit Airlines
$153
Gotogate
2:00 pm - 4:15 pm
American Airlines
Nonstop
2h 15m
STL - AUS
American Airlines

Related info for your journey

Useful info, stats and facts about <span class="emphasized">St. Louis</span> to <span class="emphasized">Austin</span> flights.

Flight FAQs

From St. Louis to Austin

What airports do I use to fly from St. Louis to Austin?

If you book a flight from St. Louis to Austin, you will be flying from Lambert-St Louis to Austin Bergstrom. Flights to Austin Bergstrom (AUS) from Lambert-St Louis (STL) take 2h 05m for a nonstop flight. There are 6 flights from Lambert-St Louis to Austin per day from 6 airlines.

Which airlines flying from Lambert-St Louis to Austin Bergstrom have flexible cancellations due to COVID-19?

American Airlines, United Airlines, and Frontier are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from St. Louis to Austin for under $200 on Cheapflights?

Yes, there are multiple flights from St. Louis to Austin for under $200. The cheapest flight booked recently is on Spirit Airlines for just $121, but on average you can expect to pay $136.

Are there nonstop flights from St. Louis to Austin for under $200 on Cheapflights?

Cheapflights has at least 20 direct flights from St. Louis to Austin under $200. A good price for a nonstop flight from St. Louis to Austin is less than $202.

Are there last-minute flights available from St. Louis to Austin for under $200?

There are currently 20+ open flights from St. Louis to Austin within the next 7 days for less than $200.

How popular is this St. Louis to Austin flight route?

The Lambert-St Louis to Austin Bergstrom flight path was viewed by 22 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

What are the cheapest airlines flying from St. Louis to Austin round-trip?

According to our current data, Spirit Airlines ($121), Frontier ($128), and American Airlines ($129) offers the cheapest pricing from St. Louis to Austin. Users have found that Spirit Airlines is 48% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from St. Louis to Austin one-way?

The cheapest airlines for a one-way flight from St. Louis to Austin are Spirit Airlines ($57), Frontier ($65), and American Airlines ($89).

What are the most popular airlines that fly from St. Louis to Austin?

The most popular airlines flying from St. Louis to Austin are Major Airline, American Airlines and Delta. Something to consider prior to booking your flight.

What are the cheapest flights from St. Louis to Austin?

While on average a flight from St. Louis to Austin is generally $417, our data shows the cheapest flight currently is $93. When looking at the most popular route, (Lambert-St Louis - Austin Bergstrom), you can expect to pay $121 for that flight.

What are the most reliable airlines from St. Louis to Austin?

Consider Alaska Airlines (89%), American Airlines (87%) or Envoy Air (87%) when booking your flight. These represent the most reliable airlines when flying from St. Louis to Austin.

COVID Restrictions

View COVID Travel Restrictions for Austin, TX

Do I need a COVID test to fly to Austin from St. Louis?

Information is based on travel restrictions for travel to Austin Bergstrom within the United States

Most visitors from Lambert-St Louis need to provide a negative COVID-19 test result and/or quarantine to enter Austin Bergstrom.

COVID-19 testing requirements
Visitors from Lambert-St Louis must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Austin Bergstrom.

Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering Austin Bergstrom.

Do I need a test to fly back to St. Louis from Austin?

Returning to Lambert-St Louis from Austin Bergstrom

COVID-19 testing requirements
Visitors from Austin Bergstrom must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Lambert-St Louis.

Quarantine requirements
Visitors from Austin Bergstrom are not required to quarantine after entering Lambert-St Louis.

Hide COVID Travel Restrictions for Austin, TX

Alternative routes for St. Louis to Austin

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Austin

Things to know before you go - useful duration and weather info for your trip from St. Louis to Austin.
Flight duration from STL to AUS
2h 07m
Average temperature for October in Austin
84.2 °F
Avg rainfall for October in Austin
3.9 ″

Airports servicing St. Louis

Airports servicing Austin

Top 4 airlines flying from Lambert-St Louis to Austin Bergstrom

The chart below displays the airlines Cheapflights users traveling from St. Louis to Austin choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
United Airlines
$91 $237 No cancel fee 69%
Frontier
$92 $202 No cancel fee 62%
Delta
$104 $224 No cancel fee N/A
American Airlines
$117 $320 No cancel fee 71%

Hourly flight availability from St. Louis to Austin

See what time of day planes typically take off from St. Louis towards Austin.
Afternoon Noon to 6 PM 53% of STL to AUS departures
Morning 6 AM to noon 46% of STL to AUS departures
Early morning Midnight to 6 AM 1% of STL to AUS departures
Evening 6 PM to midnight 0% of STL to AUS departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from St. Louis to Austin
See how many times per day planes take to the skies headed from St. Louis to Austin.
Sunday
7 daily flights
Monday
7 daily flights
Tuesday
7 daily flights
Wednesday
7 daily flights
Thursday
7 daily flights
Friday
7 daily flights
Saturday
3 daily flights
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