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$65+ Cheap flights from St. Louis to Austin (STL - AUS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
STL — AUS
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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The best prices from Lambert-St Louis to Austin Bergstrom are usually found in January or June, booked 36 days in advance, depart on a Wednesday or Monday and return on a Tuesday

Cheap flight deals from St. Louis to Austin

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Austin (AUS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$128
(CheapOair)

One-way from

$65
(CheapOair)

Popular in

April

Cheapest in

January

Average price

$358
Provider with most accurate pricing for Lambert-St Louis-Austin Bergstrom flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Austin Bergstrom flights.
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From Lambert-St Louis to Austin Bergstrom
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One-way flight from Lambert-St Louis to Austin Bergstrom
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High demand for flights, 7% potential price rise
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Best time to find cheap flights, 1% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from St. Louis to Austin

Cheapest flights from St. Louis to Austin
Explore the most affordable flight options available from St. Louis to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.

This CheapOair deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/306:49 pmSTL - AUS
1 stop26h 51mFrontier
Fri 1/35:19 pmAUS - STL
1 stop14h 54mFrontier
Deal found 12/18$298
This Delta deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/315:17 pmSTL - AUS
1 stop7h 18mDelta
Tue 1/712:47 pmAUS - STL
1 stop5h 58mDelta
Deal found 12/18$337
This Southwest deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/312:05 pmSTL - AUS
1 stop5h 35mSouthwest
Tue 1/73:15 pmAUS - STL
Nonstop2h 00mSouthwest
Deal found 12/18$338
This United Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/241:44 pmSTL - AUS
1 stop7h 14mUnited Airlines
Thu 1/21:09 pmAUS - STL
1 stop6h 48mUnited Airlines
Deal found 12/17$393
This American Airlines deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/265:21 amSTL - AUS
1 stop3h 55mAmerican Airlines
Mon 12/3012:47 pmAUS - STL
1 stop3h 52mAmerican Airlines
Deal found 12/18$478
This CheapOair deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1910:09 pmSTL - AUS
1 stop23h 31mMultiple Airlines
Mon 1/68:17 pmAUS - STL
1 stop19h 04mMultiple Airlines
Deal found 12/18$491
This Alaska Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/264:08 pmSTL - AUS
2 stops20h 09mAlaska Airlines
Mon 12/307:08 pmAUS - STL
2 stops21h 26mAlaska Airlines
Deal found 12/17$1,271

Find flights from St. Louis to Austin within your budget

Customize your flight search to find flights from St. Louis to Austin that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisAustin

STL - AUS

STLAUS

Lambert-St Louis

Thu 1/9

8:34 pm-8:54 pm

1 stop24h 20m

Austin Bergstrom

Sun 1/12

8:24 pm-9:06 am

1 stop12h 42m

$128

St. LouisAustin

STL - AUS

STLAUS

Lambert-St Louis

Tue 1/14

1:40 pm-7:57 pm

1 stop6h 17m

Austin Bergstrom

Thu 1/16

6:02 pm-11:46 pm

1 stop5h 44m

$178

St. LouisAustin

STL - AUS

STLAUS

Lambert-St Louis

Fri 1/24

8:31 pm-3:05 pm

1 stop18h 34m

Austin Bergstrom

Mon 1/27

8:26 pm-2:43 pm

1 stop18h 17m

$206

St. LouisAustin

STL - AUS

STLAUS

Lambert-St Louis

Tue 1/14

11:05 am-1:20 pm

Nonstop2h 15m

Austin Bergstrom

Thu 1/16

6:40 am-8:40 am

Nonstop2h 00m

$255

St. LouisAustin

STL - AUS

STLAUS

Lambert-St Louis

Tue 1/7

12:00 pm-8:23 pm

1 stop8h 23m

Austin Bergstrom

Tue 1/14

12:47 pm-6:45 pm

1 stop5h 58m

$266

St. LouisAustin

STL - AUS

STLAUS

Lambert-St Louis

Tue 1/14

6:30 am-3:26 pm

2 stops8h 56m

Austin Bergstrom

Tue 1/21

4:22 pm-10:20 pm

1 stop5h 58m

$271

St. LouisAustin

STL - AUS

STLAUS

Lambert-St Louis

Mon 3/3

3:21 pm-11:06 pm

2 stops31h 45m

Austin Bergstrom

Mon 3/17

1:26 pm-11:59 pm

1 stop10h 33m

$421

St. LouisAustin

STL - AUS

STLAUS

Lambert-St Louis

Mon 2/3

7:09 pm-3:14 pm

1 stop20h 05m

$65

St. LouisAustin

STL - AUS

STLAUS

Lambert-St Louis

Sat 1/18

5:12 pm-11:21 pm

1 stop6h 09m

$114

St. LouisAustin

STL - AUS

STLAUS

Lambert-St Louis

Tue 2/18

5:50 pm-8:05 pm

Nonstop2h 15m

$124

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 15 results
1
2

Compare providers for flights from St. Louis to Austin

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Austin in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightnetworkPrice Accuracy-Trust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*2 stars
GotogatePrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Austin flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Austin flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Austin flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Austin flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Austin flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Austin

Have a flexible travel schedule? Discover the best time to fly to Austin from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from St. Louis to Austin

Get recent, data-driven insights about flights from St. Louis to Austin including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from St. Louis to Austin?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Austin. Price data was last updated on December 13, 2024.

The price you pay for your flight from St. Louis to Austin may vary depending on when you book. For the best chance of a lower fare, look to book 36 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from St. Louis to Austin?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Austin (average of $286). Flying from St. Louis to Austin in March is currently the most expensive (average of $362). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to AUS?

Find hourly flight availability from St. Louis to Austin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2024.

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 15% versus a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Austin. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their St. Louis to Austin flight should consider departing on Saturday evenings when fares are most often at their lowest. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Austin by month

Plan your trip to Austin by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Austin ranges from 2.1 - 4.2 inches per month. May is typically the wettest month, when rainfall can reach 4.2 in. July is typically the driest time to visit Austin when rainfall is around 2.1 in.

Temperature in Austin by month

Plan your trip to Austin by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Austin, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 50.0 F).

Reviews of airlines servicing Austin

Get insights into the airlines that provide service to Austin. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Austin. Reviews last updated December 18, 2024.
Get a feel of what it's like to fly with American Airlines, Delta and United Airlines from St. Louis to Austin by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,848 reviews

Overall

8.1

Boarding

8.2

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Southwest
8.1
Very good
4,848 reviews
Southwest
8.1
Very good
4,848 reviews

Overall

8.1

Boarding

8.2

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Alaska Airlines
8.0
Very good
9,552 reviews
Southwest
8.1
Very good
4,848 reviews

Overall

8.1

Boarding

8.2

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Delta
8.0
Very good
8,604 reviews
Southwest
8.1
Very good
4,848 reviews

Overall

8.1

Boarding

8.2

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

United Airlines
7.4
Good
9,059 reviews
Southwest
8.1
Very good
4,848 reviews

Overall

8.1

Boarding

8.2

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,848 reviews

Overall

8.1

Boarding

8.2

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Austin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 is 1 flight from Lambert-St Louis to Austin per day from 5 airlines.

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

    The Lambert-St Louis to Austin Bergstrom flight path was viewed by 5 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, Frontier ($128), American Airlines ($178), and Southwest ($255) offers the cheapest pricing from St. Louis to Austin. Users have found that Frontier is 59% 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 Frontier ($65), American Airlines ($114), and Southwest ($124).

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

    While on average a flight from St. Louis to Austin is generally $314, our data shows the cheapest flight currently is $148. When looking at the most popular route, (Lambert-St Louis - Austin Bergstrom), you can expect to pay $205 for that flight.

  • Can I find deals for flights from St. Louis to Austin that include hotel bookings?

    Yes. In addition to deals on St. Louis to Austin flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Austin?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Austin.

  • Can I find deals for business class flights from St. Louis to Austin?

    Yes. Cheapflights offers flight deals from St. Louis to Austin by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Austin?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Austin (average of $286). Flying from St. Louis to Austin in March is currently the most expensive (average of $362). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for St. Louis to Austin

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from St. Louis to Austin

Discover the top 5 airlines that operate flights from St. Louis to Austin. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$124Average$187FlexibilityNo cancel feeOn-time62%
DeltaCheapest$197Average$279FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$213Average$310FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$244Average$369FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$249Average$348FlexibilityNo cancel feeOn-time63%
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