$70 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.

Sun, Dec 7 - Mon, Dec 15
AUS
Austin-Bergstrom Intl.
STL
Lambert-St. Louis Intl.
$263 Roundtrip, found 1 day ago
$263
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sun, Dec 7 from Austin-Bergstrom Intl. to Lambert-St. Louis Intl., returning Mon, Dec 15, priced at $263 found 1 day ago

Airfares from $70 One Way, $193 Round Trip from Killeen to St. Louis

Prices starting at $193 for return flights and $70 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.

Thu, Dec 11 - Mon, Dec 15
AUS
Austin
STL
St. Louis
$193 Roundtrip, found 16 hours ago
$193
Roundtrip
found 16 hours ago
Select Frontier Airlines flight, departing Thu, Dec 11 from Austin to St. Louis, returning Mon, Dec 15, priced at $193 found 16 hours ago
Thu, Dec 11 - Mon, Dec 15
AUS
Austin
STL
St. Louis
$200 Roundtrip, found 16 hours ago
$200
Roundtrip
found 16 hours ago
Select Frontier Airlines flight, departing Thu, Dec 11 from Austin to St. Louis, returning Mon, Dec 15, priced at $200 found 16 hours ago
Thu, Dec 4 - Thu, Dec 11
AUS
Austin
STL
St. Louis
$218 Roundtrip, found 6 days ago
$218
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Thu, Dec 4 from Austin to St. Louis, returning Thu, Dec 11, priced at $218 found 6 days ago
Sun, Dec 14 - Thu, Dec 18
AUS
Austin
STL
St. Louis
$240 Roundtrip, found 2 hours ago
$240
Roundtrip
found 2 hours ago
Select Spirit Airlines flight, departing Sun, Dec 14 from Austin to St. Louis, returning Thu, Dec 18, priced at $240 found 2 hours ago
Mon, Oct 26 - Tue, Oct 27
AUS
Austin
STL
St. Louis
$251 Roundtrip, found 3 hours ago
$251
Roundtrip
found 3 hours ago
Select United flight, departing Mon, Oct 26 from Austin to St. Louis, returning Tue, Oct 27, priced at $251 found 3 hours ago

St. Louis economy flight packages

Price found within the past 48 hours. Click for updated prices.
The Knight Center at Washington University
2.5-star property

The Knight Center at Washington University

9.4/10 Exceptional! (425 reviews)

Jan 14 - Jan 18

4 night stay

Austin (AUS) to St. Louis (STL)

Southwest Airlines • Coach

St. Louis (STL) to Austin (AUS)

American Airlines • Coach
Price was $583, price is now $402 per person
$402
per person
found 23 hours ago
Very nice lobby restaurant and bar

Reviewed on Sep 15, 2025

HoteLumiere at the Arch - A Caesars Rewards Destination
4.0-star property

HoteLumiere at the Arch - A Caesars Rewards Destination

6.6/10 (1,001 reviews)

Jan 14 - Jan 18

4 night stay

Austin (AUS) to St. Louis (STL)

Southwest Airlines • Coach

St. Louis (STL) to Austin (AUS)

American Airlines • Coach
Save 100% on your flight
Price was $684, price is now $423 per person
$423
per person
found 23 hours ago
The check-in was smooth. They place a $50 per day hold on your credit/debit card for incidentals which you get back after check-out. The room was immaculate. I loved that the living room was separate from the bedroom. The bathroom is really small but other than that the room was great! There's a skywalk that connects to the Horseshoe Casino. That was great because I could easily access the restaurants and bars at the casino. The hotel does have a parking lot in front of it that's free and there's free parking at the garage that's connected to the casino. Overall the hotel was good; however, one set of elevators weren't working which caused an inconvenience and I wasn't able to connect to the Wifi.

Reviewed on Oct 8, 2023

The Cheshire
4.0-star property

The Cheshire

8.6/10 Excellent! (1,002 reviews)

Jan 14 - Jan 18

4 night stay

Austin (AUS) to St. Louis (STL)

Southwest Airlines • Coach

St. Louis (STL) to Austin (AUS)

American Airlines • Coach
Save 100% on your flight
Price was $617, price is now $424 per person
$424
per person
found 23 hours ago
We always stay here when in St. Louis. Love the place. Nice atmosphere, great pub.

Reviewed on Sep 2, 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
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

Killeen to St. Louis

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Cheap Air Ticket Prices Guaranteed

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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.