What airlines fly to St. Louis?

Southwest, American Airlines and United Airlines are the top three most popular airlines that fly to St. Louis from Killeen according to our data. Southwest is the first choice among our users, with 65% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 4 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

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?

As of August 2025, there is 1 operator available to choose from 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.

$215 Cheap Flights from Killeen to St. Louis in 2025

1 adult

0 bags

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Find the cheapest flights from Killeen to St. Louis

Round-trip

One-way

Last minute

Cheap round-trip flights

4:40 pm - 8:15 pmGRK-STL

3h 35m1 stop

5:18 am - 9:38 amSTL-GRK

4h 20m1 stop

$291American Airlines

Find Deal

Fri, Oct 3 - Sun, Oct 5

11:34 am - 9:53 pmGRK-STL

10h 19m2 stops

5:18 am - 9:38 amSTL-GRK

4h 20m1 stop

$358American Airlines

Find Deal

Fri, Oct 3 - Sun, Oct 5

4:32 pm - 8:23 pmGRK-STL

3h 51m1 stop

5:18 am - 9:47 amSTL-GRK

4h 29m1 stop

$379American Airlines

Find Deal

Thu, Aug 28 - Thu, Sep 4

5:16 am - 3:49 pmGRK-STL

10h 33m2 stops

5:18 am - 11:03 amSTL-GRK

5h 45m1 stop

$495American Airlines

Find Deal

Thu, Aug 28 - Thu, Sep 4

11:34 am - 8:32 pmGRK-STL

8h 58m2 stops

7:23 am - 4:02 pmSTL-GRK

8h 39m2 stops

$601American Airlines

Find Deal

Fri, Oct 3 - Sun, Oct 5

American Airlines flights from Killeen to St. Louis

Our best American Airlines deals on Killeen to St. Louis flight tickets

American Airlines

Oct 3

GRK4:40 pmKilleen Fort Hood Regional

3h 35m

1 stop

STL8:15 pmLambert-St Louis

Oct 5

STL5:18 amLambert-St Louis

4h 20m

1 stop

GRK9:38 amKilleen Fort Hood Regional

$291

Find similar

American Airlines

Oct 3

GRK11:34 amKilleen Fort Hood Regional

10h 19m

2 stops

STL9:53 pmLambert-St Louis

Oct 5

STL5:18 amLambert-St Louis

4h 20m

1 stop

GRK9:38 amKilleen Fort Hood Regional

$358

Find similar

American Airlines

Aug 28

GRK4:32 pmKilleen Fort Hood Regional

3h 51m

1 stop

STL8:23 pmLambert-St Louis

Sep 4

STL5:18 amLambert-St Louis

4h 29m

1 stop

GRK9:47 amKilleen Fort Hood Regional

$379

Find similar

Fly from

Fly to

Route

Depart

Return

Price

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Fri 10/3

4:40 pm-8:15 pm

1 stop3h 35m

Lambert-St Louis

Sun 10/5

5:18 am-9:38 am

1 stop4h 20m

$291

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Fri 10/3

11:34 am-9:53 pm

2 stops10h 19m

Lambert-St Louis

Sun 10/5

5:18 am-9:38 am

1 stop4h 20m

$358

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Thu 8/28

4:32 pm-8:23 pm

1 stop3h 51m

Lambert-St Louis

Thu 9/4

5:18 am-9:47 am

1 stop4h 29m

$379

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Thu 8/28

5:16 am-3:49 pm

2 stops10h 33m

Lambert-St Louis

Thu 9/4

5:18 am-11:03 am

1 stop5h 45m

$495

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Fri 10/3

11:34 am-8:32 pm

2 stops8h 58m

Lambert-St Louis

Sun 10/5

7:23 am-4:02 pm

2 stops8h 39m

$601

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

Prices

Airlines

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Saturday when prices can be found for as low as $220. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Wednesday because tickets tend to average around $488. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Killeen in the morning is the least expensive time of day to depart. momondo users have found prices as low as $381 when looking at flights departing in the morning. In the afternoon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $395 per ticket.

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

Best Price Found	$291
Fastest flight time	3h 35m
Direct flights	None
Airports in St. Louis	1 airport

The best flight deal from Killeen to St. Louis found on momondo in the last 72 hours is $291

The fastest flight from Killeen to St. Louis takes 3h 35m

There are no direct flights from Killeen to St. Louis. Popular non-direct route for this connection is Killeen Fort Hood Regional Airport - Lambert-St Louis Airport.

There is 1 airport near St. Louis: Lambert-St Louis (STL)

Search flight deals

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 35m.
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?
As of August 2025, there is 1 operator available to choose from 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?
momondo data reveals that the most frequently booked airline on the route from Killeen to St. Louis is American Airlines, representing 100% of all bookings.

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 Airlines	PriceFrom $290	Free Cancellation	Rating 7.2 10,000 reviews		Search American Airlines flights

St. Charles

Chesterfield

Fairview Heights

Hermann

Maryland Heights

Florissant

O'Fallon

Fenton

Wentzville

Collinsville

Alton

St. Peters

Farmington

Festus

Glencoe

Eureka

Clayton

Edwardsville

Litchfield

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.