$99 Cheap flight deals from Killeen (ILE) to St. Louis (STL)

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This Weekend's Flight Deals from Killeen to St. Louis

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Jun 7 - Sun, Jun 22
GRK
Killeen-Fort Hood Regional
STL
Lambert-St. Louis Intl.
$428 Roundtrip, found 5 days ago
$428
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sat, Jun 7 from Killeen-Fort Hood Regional to Lambert-St. Louis Intl., returning Sun, Jun 22, priced at $428 found 5 days ago
Fri, Jun 6 - Sun, Jun 8
AUS
Austin-Bergstrom Intl.
STL
Lambert-St. Louis Intl.
$444 Roundtrip, found 3 days ago
$444
Roundtrip
found 3 days ago
Select American Airlines flight, departing Fri, Jun 6 from Austin-Bergstrom Intl. to Lambert-St. Louis Intl., returning Sun, Jun 8, priced at $444 found 3 days ago

Airfares from $99 One Way, $220 Round Trip from Killeen to St. Louis

Prices starting at $220 for return flights and $99 for one-way flights to St. Louis were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Sep 12 - Sun, Sep 14
AUS
Austin
STL
St. Louis
$220 Roundtrip, found 13 hours ago
$220
Roundtrip
found 13 hours ago
Select Frontier Airlines flight, departing Fri, Sep 12 from Austin to St. Louis, returning Sun, Sep 14, priced at $220 found 13 hours ago
Sun, Jul 13 - Sat, Jul 19
AUS
Austin
STL
St. Louis
$231 Roundtrip, found 2 days ago
$231
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sun, Jul 13 from Austin to St. Louis, returning Sat, Jul 19, priced at $231 found 2 days ago
Tue, Jul 8 - Fri, Jul 11
AUS
Austin
STL
St. Louis
$252 Roundtrip, found 19 hours ago
$252
Roundtrip
found 19 hours ago
Select American Airlines flight, departing Tue, Jul 8 from Austin to St. Louis, returning Fri, Jul 11, priced at $252 found 19 hours ago
Tue, Jul 8 - Fri, Jul 11
AUS
Austin
STL
St. Louis
$257 Roundtrip, found 19 hours ago
$257
Roundtrip
found 19 hours ago
Select Delta flight, departing Tue, Jul 8 from Austin to St. Louis, returning Fri, Jul 11, priced at $257 found 19 hours ago
Tue, Jul 8 - Fri, Jul 11
AUS
Austin
STL
St. Louis
$257 Roundtrip, found 19 hours ago
$257
Roundtrip
found 19 hours ago
Select Southwest Airlines flight, departing Tue, Jul 8 from Austin to St. Louis, returning Fri, Jul 11, priced at $257 found 19 hours ago

St. Louis economy flight packages

Price found within the past 48 hours. Click for updated prices.
DoubleTree by Hilton St. Louis Forest Park
4.0-star property

DoubleTree by Hilton St. Louis Forest Park

8.2/10 Very Good! (1,001 reviews)

Jul 10 - Jul 13

3 night stay

Austin (AUS) to St. Louis (STL)

Southwest Airlines • Non-stop roundtrip • Coach
per person
found 14 hours ago
Convenient location but in our 8th floor room we heard audible clanking sounds throughout the night and during the day

Reviewed on Apr 27, 2025

Ameristar Casino Resort and Spa
4.5-star property

Ameristar Casino Resort and Spa

8.4/10 Very Good! (1,003 reviews)

Jul 10 - Jul 13

3 night stay

Austin (AUS) to St. Louis (STL)

Southwest Airlines • Non-stop roundtrip • Coach
per person
found 14 hours ago
All was good. Except for the smoking casino

Reviewed on Apr 19, 2025

The Cheshire
4.0-star property

The Cheshire

8.6/10 Excellent! (1,003 reviews)

Jul 10 - Jul 13

3 night stay

Austin (AUS) to St. Louis (STL)

Southwest Airlines • Non-stop roundtrip • Coach
per person
found 14 hours ago
Check in was smooth went into room to do my normal inspection and the bathroom had a overwhelming urine and feces smell. I looked around and saw tissue paper on the stand that had dried feces in it. I went to wash my hands and the smell of urine became stronger someone had to be urinating in the sink. Immediately went downstairs to advise of the situation and they gave a different room. The new room was better it was very drafty by the window but that's what comes with stained glass windows that open vintage style. Breakfast was good, nice variety for sure. Would stay there again but this is a VINTAGE hotel, not historical so please understand it is not going to be modern. It is a themed hotel.

Reviewed on Feb 17, 2025

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More About Flying To St. Louis from Killeen

Route Information for Flights from Killeen to St. Louis

Origin Airport IATA Code
ILE
Destination Airport IATA Code
STL
Distance
721 mi
Direct Flight Airlines
Southwest Airlines
Earliest Flight Arrival
12:05PM UTC
Latest Flight Arrival
11:55PM UTC

Killeen to St. Louis

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Frequently asked questions

Are there non-stop flights from Killeen to St. Louis?
Get set to pack your suitcase, because there are two airlines that operate direct flights from Austin-Bergstrom Intl. Airport (AUS) to STL. You can book a seat with Southwest Airlines and American Airlines.
What is the shortest flight from Killeen to St. Louis?
If conditions are good and there are no delays, you could be touching down at STL from Killeen-Fort Hood Regional Airport in only 2 hours and 40 minutes. With such a quick flight time, think about taking just carry-on luggage.
What airlines fly from Killeen to St. Louis most frequently?
The airlines that fly frequently between Austin-Bergstrom Intl. Airport (AUS) and Lambert-St. Louis Intl. Airport (STL) include Southwest Airlines (WN). This popular option offers 60 flights on the route each month. Alternatively, book your favorite seat with American Airlines (AA). You’ll have 34 monthly flights between Killeen and St. Louis to select from with this company.
What is the cheapest day of the week to fly?
Consider flying out early in the week to save on your airfare. Orbitz data from 2021 shows that Monday is the cheapest day to depart, followed by Tuesday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.
What is the cheapest month to fly?
We won’t keep you guessing, according to Orbitz data from 2021, the cheapest month to fly is February. Perfect for those who need a weekend getaway, or just a break from it all in the shortest month of the year. Be aware that the most expensive time to fly is during the height of summer in July, and in the holiday month of December.*According to flight demand on Orbitz.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.