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 Wednesday or Saturday and return on a Thursday

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 2022: 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
Rainfall
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

$109

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.
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 October

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 Saturday 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.

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.

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 in the afternoon, which can drop the price by up to 7% versus a flight in the morning.

Cheap flights from St. Louis to Austin in May, June 2022

The best prices found for STL to AUS flights for May, June
19 May - 25 May
$184pp
STL
Lambert-St Louis
Frontier
 
1 STOP
AUS
Austin Bergstrom
AUS
Austin Bergstrom
Frontier
 
1 STOP
STL
Lambert-St Louis
7 Jun - 11 Jun
$200pp
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
AUS
Austin Bergstrom
AUS
Austin Bergstrom
Alaska Airlines
Non-Stop
STL
Lambert-St Louis
19 May - 21 May
$212pp
STL
Lambert-St Louis
Frontier
 
1 STOP
AUS
Austin Bergstrom
AUS
Austin Bergstrom
Frontier
 
1 STOP
STL
Lambert-St Louis

Lambert-St Louis to Austin 2022 flight deals

Cheap flights to Austin from St. Louis found for this year
19 Jul - 27 Jul
$180pp
STL
Lambert-St Louis
Alaska Airlines
Non-Stop
AUS
Austin Bergstrom
AUS
Austin Bergstrom
Alaska Airlines
Non-Stop
STL
Lambert-St Louis
19 May - 25 May
$184pp
STL
Lambert-St Louis
Frontier
 
1 STOP
AUS
Austin Bergstrom
AUS
Austin Bergstrom
Frontier
 
1 STOP
STL
Lambert-St Louis
30 Aug - 31 Aug
$187pp
STL
Lambert-St Louis
American Airlines
Non-Stop
AUS
Austin Bergstrom
AUS
Austin Bergstrom
American Airlines
 
1 STOP
STL
Lambert-St Louis

Non-stop flights to Austin from St. Louis

Save time with St. Louis to Austin direct flight deals
19 Jul - 27 Jul
$180pp
STL
Lambert-St Louis
Alaska Airlines
Non-Stop
AUS
Austin Bergstrom
AUS
Austin Bergstrom
Alaska Airlines
Non-Stop
STL
Lambert-St Louis
5 Oct - 12 Oct
$198pp
STL
Lambert-St Louis
Alaska Airlines
Non-Stop
AUS
Austin Bergstrom
AUS
Austin Bergstrom
Alaska Airlines
Non-Stop
STL
Lambert-St Louis
7 Jun - 11 Jun
$200pp
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
AUS
Austin Bergstrom
AUS
Austin Bergstrom
Alaska 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
24 May - 8 Jun
$224pp
STL
Lambert-St Louis
American Airlines
Non-Stop
AUS
Austin Bergstrom
AUS
Austin Bergstrom
American Airlines
Non-Stop
STL
Lambert-St Louis
24 May - 8 Jun
$233pp
STL
Lambert-St Louis
American Airlines
 
1 STOP
AUS
Austin Bergstrom
AUS
Austin Bergstrom
American Airlines
Non-Stop
STL
Lambert-St Louis
29 May - 31 May
$258pp
STL
Lambert-St Louis
American Airlines
Non-Stop
AUS
Austin Bergstrom
AUS
Austin Bergstrom
American Airlines
Non-Stop
STL
Lambert-St Louis

One-way flights to Austin Bergstrom from St. Louis

The cheapest one-way flights from St. Louis to Austin
3:10 pm - 8:29 pm
Delta
1 Stop
5h 19m
STL - AUS
Delta
$109
Delta
1:35 am - 5:10 am
Southwest
1 Stop
3h 35m
STL - AUS
Southwest
$150
Southwest
4:35 pm - 1:35 pm
Multiple Airlines
2 Stops
21h 00m
STL - AUS
Multiple Airlines
$176
Kiwi.com

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 04m for a nonstop flight. There are 9 flights from Lambert-St Louis to Austin per day from 8 airlines.

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

American Airlines, Alaska Airlines, and United Airlines 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 Alaska Airlines for just $180, but on average you can expect to pay $219.

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 $252.

Are there last-minute flights available from St. Louis to Austin for under $300?

There are currently 20+ open flights from St. Louis to Austin within the next 7 days for less than $300.

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, Alaska Airlines ($180), American Airlines ($187), and Delta ($198) offers the cheapest pricing from St. Louis to Austin. Users have found that Alaska Airlines is 23% 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 Alaska Airlines ($90), American Airlines ($98), and United Airlines ($99).

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

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

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

Consider American Airlines (86%), Envoy Air (86%) or Southwest (76%) when booking your flight. These represent the most reliable airlines when flying from St. Louis to Austin.

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

While on average a flight from St. Louis to Austin is generally $423, our data shows the cheapest flight currently is $26. When looking at the most popular route, (Lambert-St Louis - Austin Bergstrom), you can expect to pay $180 for that flight.

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 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) 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 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) 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 06m
Average temperature for May in Austin
87.8 °F
Avg rainfall for May in Austin
4.8 ″

Airports servicing St. Louis

Airports servicing Austin

Top 7 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
Juneyao Airlines
$14 $18 No cancel fee 66%

We couldn't confirm the COVID-19 safety measures taken by Juneyao Airlines. Please check directly on their website for additional information.

Spirit Airlines
$63 $124 No cancel fee 65%
Frontier
$118 $232 No cancel fee 62%
Delta
$133 $294 No cancel fee N/A
United Airlines
$141 $288 No cancel fee 69%
American Airlines
$150 $247 No cancel fee 71%
Alaska Airlines
$183 $311 No cancel fee 75%

Hourly flight availability from St. Louis to Austin

See what time of day planes typically take off from St. Louis towards Austin.
Morning 6 AM to noon 44% of STL to AUS departures
Evening 6 PM to midnight 29% of STL to AUS departures
Afternoon Noon to 6 PM 26% of STL to AUS departures
Early morning Midnight to 6 AM 1% 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
11 daily flights
Monday
11 daily flights
Tuesday
11 daily flights
Wednesday
11 daily flights
Thursday
11 daily flights
Friday
11 daily flights
Saturday
2 daily flights
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