$80 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, May 8 - Sun, May 10
AUS
Austin-Bergstrom Intl.
STL
Lambert-St. Louis Intl.
$238 Roundtrip, found 1 day ago
$238
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, May 8 from Austin-Bergstrom Intl. to Lambert-St. Louis Intl., returning Sun, May 10, priced at $238 found 1 day ago

Airfares from $80 One Way, $238 Round Trip from Killeen to St. Louis

Prices starting at $238 for return flights and $80 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, May 8 - Sun, May 10
AUS
Austin
STL
St. Louis
$238 Roundtrip, found 1 day ago
$238
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, May 8 from Austin to St. Louis, returning Sun, May 10, priced at $238 found 1 day ago
Sat, May 16 - Sun, May 17
AUS
Austin
STL
St. Louis
$241 Roundtrip, found 3 days ago
$241
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Sat, May 16 from Austin to St. Louis, returning Sun, May 17, priced at $241 found 3 days ago
Wed, Aug 19 - Sun, Aug 23
AUS
Austin
STL
St. Louis
$245 Roundtrip, found 5 days ago
$245
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Wed, Aug 19 from Austin to St. Louis, returning Sun, Aug 23, priced at $245 found 5 days ago
Mon, May 25 - Tue, May 26
AUS
Austin
STL
St. Louis
$252 Roundtrip, found 3 days ago
$252
Roundtrip
found 3 days ago
Select American Airlines flight, departing Mon, May 25 from Austin to St. Louis, returning Tue, May 26, priced at $252 found 3 days ago
Fri, May 15 - Sun, May 17
AUS
Austin
STL
St. Louis
$263 Roundtrip, found 2 days ago
$263
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Fri, May 15 from Austin to St. Louis, returning Sun, May 17, priced at $263 found 2 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! (1,625 reviews)

Jun 4 - Jun 6

2 night stay

Austin (AUS) to St. Louis (STL)

Southwest Airlines • Non-stop roundtrip • Coach
Price was $626, price is now $409 per person
$409
per person
found 21 hours ago
Hotel was clean but honestly, outdated. Staff was great. The continental breakfast was fine. Biggest issue was the shower. There was next to no water pressure no matter the time of day. The mattress also felt cheap. I’m not a picky person and overall, I would stay again. Just maybe not in an upgraded room. I don’t feel like it was worth it.

Reviewed on Feb 24, 2026

Nebraska
2.0-star property

Nebraska

No reviews

Jun 4 - Jun 7

3 night stay

Austin (AUS) to St. Louis (STL)

Southwest Airlines • Non-stop roundtrip • Coach
Save 100% on your flight
Price was $1,798, price is now $1,355 per person
$1,355
per person
found 21 hours ago
DoubleTree by Hilton Hotel St. Louis - Chesterfield
4.0-star property

DoubleTree by Hilton Hotel St. Louis - Chesterfield

8.6/10 Excellent! (1,003 reviews)

Jun 4 - Jun 6

2 night stay

Austin (AUS) to St. Louis (STL)

Southwest Airlines • Non-stop roundtrip • Coach
Price was $709, price is now $542 per person
$542
per person
found 21 hours ago
The room was decent, but noticeable dust. The beds were extremely uncomfortable, and the amenities were outdated. The breakfast cost $57 for family of 4 to eat, and while it was a buffet, it was still a continental breakfast. Extremely disappointed with this aspect.

Reviewed on Jan 12, 2026

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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

For the best travel experience from Killeen to St. Louis domestic and international travelers everywhere choose Orbitz for guaranteed low prices and cutting-edge mobile tools.

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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.

More Destinations

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.