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Cheap flights from Killeen to St. Louis from $279

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Killeen to St. Louis departing on 7/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Killeen to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:00 am - 8:46 am
GRK
-
STL
3h 46m
1 stop
American Airlines Logo
5:32 am - 9:36 am
STL
-
GRK
4h 04m
1 stop
$279American Airlines
Wed, Jul 22 - Wed, Jul 29
American Airlines Logo
7:24 pm - 11:52 pm
GRK
-
STL
4h 28m
1 stop
American Airlines Logo
8:38 am - 2:38 pm
STL
-
GRK
6h 00m
1 stop
$289American Airlines
Thu, Jul 16 - Sun, Jul 19
American Airlines Logo
3:08 pm - 12:16 am
GRK
-
STL
9h 08m
2 stops
American Airlines Logo
5:32 am - 9:36 am
STL
-
GRK
4h 04m
1 stop
$553American Airlines
Wed, Jul 22 - Wed, Jul 29
American Airlines Logo
3:08 pm - 12:16 am
GRK
-
STL
9h 08m
2 stops
American Airlines Logo
5:33 am - 9:36 am
STL
-
GRK
4h 03m
1 stop
$603American Airlines
Thu, Jul 16 - Sat, Jul 18
American Airlines Logo
5:00 am - 4:40 pm
GRK
-
STL
11h 40m
2 stops
American Airlines Logo
8:38 am - 2:38 pm
STL
-
GRK
6h 00m
1 stop
$671American Airlines
Thu, Jul 16 - Sun, Jul 19
American Airlines Logo
3:08 pm - 12:16 am
GRK
-
STL
9h 08m
2 stops
American Airlines Logo
6:55 am - 2:38 pm
STL
-
GRK
7h 43m
2 stops
$747American Airlines
Wed, Jul 22 - Wed, Jul 29

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American Airlines flights from Killeen to St. Louis

Our best American Airlines deals on Killeen to St. Louis flight tickets
American Airlines
Jul 22
GRK5:00 amKilleen Fort Hood Regional
3h 46m
1 stop
STL8:46 amLambert-St Louis
Jul 29
STL5:32 amLambert-St Louis
4h 04m
1 stop
GRK9:36 amKilleen Fort Hood Regional
$279
American Airlines
Jul 16
GRK7:24 pmKilleen Fort Hood Regional
4h 28m
1 stop
STL11:52 pmLambert-St Louis
Jul 19
STL8:38 amLambert-St Louis
6h 00m
1 stop
GRK2:38 pmKilleen Fort Hood Regional
$289
American Airlines
Jul 22
GRK3:08 pmKilleen Fort Hood Regional
9h 08m
2 stops
STL12:16 amLambert-St Louis
Jul 29
STL5:32 amLambert-St Louis
4h 04m
1 stop
GRK9:36 amKilleen Fort Hood Regional
$553

momondo Fare Finder

 
Customize your flight search to find flights from Killeen to St. Louis 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, momondo users made 832,500 searches. Data last updated June 24, 2026.
Use the filters below to find and compare flights from Killeen to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Wed 7/22

5:00 am-8:46 am

1 stop3h 46m

Lambert-St Louis

Wed 7/29

5:32 am-9:36 am

1 stop4h 04m

$279

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Thu 7/16

7:24 pm-11:52 pm

1 stop4h 28m

Lambert-St Louis

Sun 7/19

8:38 am-2:38 pm

1 stop6h 00m

$289

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Wed 7/22

3:08 pm-12:16 am

2 stops9h 08m

Lambert-St Louis

Wed 7/29

5:32 am-9:36 am

1 stop4h 04m

$553

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Thu 7/16

3:08 pm-12:16 am

2 stops9h 08m

Lambert-St Louis

Sat 7/18

5:33 am-9:36 am

1 stop4h 03m

$603

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Thu 7/16

5:00 am-4:40 pm

2 stops11h 40m

Lambert-St Louis

Sun 7/19

8:38 am-2:38 pm

1 stop6h 00m

$671

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Wed 7/22

3:08 pm-12:16 am

2 stops9h 08m

Lambert-St Louis

Wed 7/29

6:55 am-2:38 pm

2 stops7h 43m

$747
Cheapest one-way
Quickest one-way

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Tue 6/30

6:44 am-12:49 pm

1 stop6h 05m

$441

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Tue 6/30

5:00 am-2:02 pm

2 stops9h 02m

$475

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to St. Louis from

How to get the cheapest flight ticket from Killeen to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Killeen to St. Louis flights?

You could potentially save up to 15% on your flight if you consider stops on a Killeen to St. Louis flight.

When to book flights from Killeen to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Killeen to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Killeen to St. Louis (GRK to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Killeen to St. Louis

Fastest flight time

3h 46m

Direct flights

None
The fastest flight from Killeen to St. Louis takes 3h 46m
There are no direct flights from Killeen to St. Louis. There are no popular flight routes from Killeen to St. Louis.
Search flight deals

Frequently asked questions about flying from Killeen to St. Louis

  • How far is Killeen Fort Hood Regional to Lambert-St Louis by plane?

    Lambert-St Louis is 670.9 mi away from Killeen Fort Hood Regional. A reasonable flight in good conditions will take 3h 46m.

  • When did momondo last update prices for flights from Killeen Fort Hood Regional Airport to Lambert-St Louis Airport?

    Prices for flights from Killeen Fort Hood Regional Airport to Lambert-St Louis Airport are updated daily.

  • How old do you have to be to fly from Killeen Fort Hood Regional Airport to Lambert-St Louis Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Killeen Fort Hood Regional Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
Hermann
Maryland Heights
Florissant
O'Fallon
Collinsville
St. Peters
Alton
Wentzville
Farmington
Fenton
Clayton
Festus
Eureka
Litchfield
Edwardsville
Grafton
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Killeen to St. Louis?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Killeen to St. Louis for you.

Can I find flights from Killeen to St. Louis with flexible booking policies on momondo?

momondo does allow users to show only those flights to St. Louis from Killeen which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Killeen to St. Louis?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. Louis from Killeen.

I’m not ready to book a flight from Killeen to St. Louis right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Killeen to St. Louis now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. Louis and let you know when they change.

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