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Cheap flights from Killeen to St. Louis from $441

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Killeen to St. Louis departing on 5/26. 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
0 bags

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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
7:21 pm - 11:59 pm
GRK
-
STL
4h 38m
1 stop
American Airlines Logo
5:29 am - 9:34 am
STL
-
GRK
4h 05m
1 stop
$651American Airlines
Sun, Jun 7 - Thu, Jun 11
American Airlines Logo
7:21 pm - 11:59 pm
GRK
-
STL
4h 38m
1 stop
American Airlines Logo
7:03 am - 2:37 pm
STL
-
GRK
7h 34m
2 stops
$731American Airlines
Sun, Jun 7 - Thu, Jun 11
American Airlines Logo
5:00 am - 8:50 am
GRK
-
STL
3h 50m
1 stop
American Airlines Logo
7:20 pm - 11:38 pm
STL
-
GRK
4h 18m
1 stop
$1,039American Airlines
Sun, Jun 7 - Thu, Jun 11
American Airlines Logo
12:54 pm - 4:33 pm
GRK
-
STL
3h 39m
1 stop
American Airlines Logo
7:03 am - 2:37 pm
STL
-
GRK
7h 34m
2 stops
$1,044American Airlines
Sun, Jun 7 - Thu, Jun 11
American Airlines Logo
5:00 am - 1:12 pm
GRK
-
STL
8h 12m
2 stops
American Airlines Logo
7:03 am - 2:37 pm
STL
-
GRK
7h 34m
2 stops
$1,165American Airlines
Sun, Jun 7 - Thu, Jun 11

American Airlines flights from Killeen to St. Louis

Our best American Airlines deals on Killeen to St. Louis flight tickets
American Airlines
May 14
GRK5:00 amKilleen Fort Hood Regional
3h 54m
1 stop
STL8:54 amLambert-St Louis
May 21
STL5:18 pmLambert-St Louis
5h 26m
1 stop
GRK10:44 pmKilleen Fort Hood Regional
$594
American Airlines
May 14
GRK5:00 amKilleen Fort Hood Regional
3h 54m
1 stop
STL8:54 amLambert-St Louis
May 21
STL7:00 amLambert-St Louis
7h 37m
2 stops
GRK2:37 pmKilleen Fort Hood Regional
$634
American Airlines
Jun 7
GRK7:21 pmKilleen Fort Hood Regional
4h 38m
1 stop
STL11:59 pmLambert-St Louis
Jun 11
STL5:29 amLambert-St Louis
4h 05m
1 stop
GRK9:34 amKilleen Fort Hood Regional
$651

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 May 9, 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

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Sun 6/7

7:21 pm-11:59 pm

1 stop4h 38m

Lambert-St Louis

Thu 6/11

5:29 am-9:34 am

1 stop4h 05m

$651

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Sun 6/7

7:21 pm-11:59 pm

1 stop4h 38m

Lambert-St Louis

Thu 6/11

7:03 am-2:37 pm

2 stops7h 34m

$731
Quickest round-trip

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Sun 6/7

5:00 am-8:50 am

1 stop3h 50m

Lambert-St Louis

Thu 6/11

7:20 pm-11:38 pm

1 stop4h 18m

$1,039

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Sun 6/7

12:54 pm-4:33 pm

1 stop3h 39m

Lambert-St Louis

Thu 6/11

7:03 am-2:37 pm

2 stops7h 34m

$1,044

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Sun 6/7

5:00 am-1:12 pm

2 stops8h 12m

Lambert-St Louis

Thu 6/11

7:03 am-2:37 pm

2 stops7h 34m

$1,165
Cheapest one-way

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Tue 5/26

12:54 pm-7:36 pm

1 stop6h 42m

$441

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Tue 5/26

12:54 pm-8:30 pm

2 stops7h 36m

$446

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Thu 5/28

12:54 pm-11:54 pm

2 stops11h 00m

$473
Quickest one-way

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Mon 5/25

6:44 am-12:49 pm

1 stop6h 05m

$520

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Mon 5/25

5:00 am-8:30 pm

2 stops15h 30m

$524

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 50m

Direct flights

None
The fastest flight from Killeen to St. Louis takes 3h 50m
There are no direct flights from Killeen to St. Louis. There are no popular flight routes from Killeen to St. Louis.
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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 50m.

  • 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 many operators does momondo search for flights from Killeen Fort Hood Regional Airport to Lambert-St Louis Airport?

  • 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.

  • What is the most popular airline from Killeen to St. Louis?

Best airlines flying from Killeen to St. Louis

Compare and see reviews for airlines that fly from Killeen to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $290Free CancellationRating
7.1
11,669 reviews
Search American Airlines flights

Traveling to a place near St. Louis?

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

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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