$66 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.

Fri, Feb 20 - Mon, Feb 23
AUS
Austin-Bergstrom Intl.
STL
Lambert-St. Louis Intl.
$204 Roundtrip, found 2 days ago
$204
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Fri, Feb 20 from Austin-Bergstrom Intl. to Lambert-St. Louis Intl., returning Mon, Feb 23, priced at $204 found 2 days ago
Fri, Feb 20 - Sun, Feb 22
GRK
Killeen-Fort Hood Regional
STL
Lambert-St. Louis Intl.
$284 Roundtrip, found 15 hours ago
$284
Roundtrip
found 15 hours ago
Select American Airlines flight, departing Fri, Feb 20 from Killeen-Fort Hood Regional to Lambert-St. Louis Intl., returning Sun, Feb 22, priced at $284 found 15 hours ago

Airfares from $66 One Way, $155 Round Trip from Killeen to St. Louis

Prices starting at $155 for return flights and $66 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, Feb 27 - Mon, Mar 2
AUS
Austin
STL
St. Louis
$155 Roundtrip, found 6 days ago
$155
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Fri, Feb 27 from Austin to St. Louis, returning Mon, Mar 2, priced at $155 found 6 days ago
Fri, Apr 17 - Sun, Apr 19
AUS
Austin
STL
St. Louis
$160 Roundtrip, found 1 day ago
$160
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, Apr 17 from Austin to St. Louis, returning Sun, Apr 19, priced at $160 found 1 day ago
Fri, May 1 - Thu, May 7
AUS
Austin
STL
St. Louis
$170 Roundtrip, found 5 days ago
$170
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Fri, May 1 from Austin to St. Louis, returning Thu, May 7, priced at $170 found 5 days ago
Fri, Feb 27 - Mon, Mar 2
AUS
Austin
STL
St. Louis
$174 Roundtrip, found 5 days ago
$174
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Fri, Feb 27 from Austin to St. Louis, returning Mon, Mar 2, priced at $174 found 5 days ago
Mon, Mar 23 - Tue, Mar 24
AUS
Austin
STL
St. Louis
$214 Roundtrip, found 4 days ago
$214
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Mon, Mar 23 from Austin to St. Louis, returning Tue, Mar 24, priced at $214 found 4 days ago

St. Louis economy flight packages

Price found within the past 48 hours. Click for updated prices.
The Wildwood Hotel
3.5-star property

The Wildwood Hotel

9.2/10 Wonderful! (1,600 reviews)

Mar 18 - Mar 21

3 night stay

Austin (AUS) to St. Louis (STL)

Southwest Airlines • Roundtrip • Coach
Price was $663, price is now $444 per person
$444
per person
found 16 hours ago
This hotel was fantastic! Check in was easy with friendly staff, the room was beautiful and well appointed. Breakfast was advertised as a Continental, however they had hot options as well, which was great. Every staff member we saw in the hotel said hi and was friendly. I would definitely stay here again!

Reviewed on Oct 16, 2025

The Cheshire
4.0-star property

The Cheshire

8.6/10 Excellent! (1,002 reviews)

Mar 18 - Mar 21

3 night stay

Austin (AUS) to St. Louis (STL)

Southwest Airlines • Roundtrip • Coach
Price was $709, price is now $567 per person
$567
per person
found 16 hours ago
We always stay here when in St. Louis. Love the place. Nice atmosphere, great pub.

Reviewed on Sep 2, 2025

Landing Apartments - Eureka
4.0-star property

Landing Apartments - Eureka

No reviews

Mar 18 - Mar 21

3 night stay

Austin (AUS) to St. Louis (STL)

Southwest Airlines • Roundtrip • Coach
Price was $870, price is now $709 per person
$709
per person
found 16 hours ago
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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
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

Killeen to St. Louis

The best fares for Killeen to St. Louis flights are always found on Orbitz. With superior discounts and the latest innovations in mobile access, your ideal trip starts with Orbitz.

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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.

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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.