When did momondo last update prices for flights from Killeen Fort Hood Regional Airport to Illinois?

Prices for flights from Killeen Fort Hood Regional Airport to Illinois are refreshed on a daily basis.

How old do you have to be to fly from Killeen Fort Hood Regional Airport to Illinois?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Killeen Fort Hood Regional Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The required travel and health documents for your Illinois 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 Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$289 Cheap Flights from Killeen to Illinois in 2026

Find the cheapest flights from Killeen to Illinois

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:37 pm - 6:05 pm

GRK

STL

5h 28m

1 stop

8:36 am - 2:35 pm

STL

GRK

5h 59m

1 stop

$289American Airlines

Fri, Aug 14 - Mon, Aug 17

12:37 pm - 6:05 pm

GRK

STL

5h 28m

1 stop

8:36 am - 2:35 pm

STL

GRK

5h 59m

1 stop

$299American Airlines

Fri, Aug 14 - Mon, Aug 17

3:05 pm - 8:30 pm

GRK

ORD

5h 25m

1 stop

7:00 am - 12:07 pm

ORD

GRK

5h 07m

1 stop

$357American Airlines

Mon, Aug 17 - Mon, Aug 24

5:00 am - 11:09 am

GRK

ORD

6h 09m

1 stop

5:00 am - 9:18 am

ORD

GRK

4h 18m

1 stop

$369American Airlines

Wed, Sep 16 - Fri, Sep 18

5:00 am - 12:15 pm

GRK

ORD

7h 15m

1 stop

12:11 pm - 6:52 pm

ORD

GRK

6h 41m

1 stop

$417American Airlines

Tue, Aug 11 - Thu, Aug 13

7:24 pm - 12:50 am

GRK

ORD

5h 26m

1 stop

2:57 pm - 9:05 pm

ORD

GRK

6h 08m

1 stop

$467American Airlines

Mon, Aug 3 - Thu, Aug 6

7:24 pm - 12:50 am

GRK

ORD

5h 26m

1 stop

5:00 am - 12:23 pm

ORD

GRK

7h 23m

1 stop

$484American Airlines

Thu, Jul 30 - Sun, Aug 2

7:24 pm - 12:50 am

GRK

ORD

5h 26m

1 stop

4:51 pm - 10:27 pm

ORD

GRK

5h 36m

1 stop

$532American Airlines

Sun, Jul 26 - Tue, Jul 28

3:08 pm - 8:29 pm

GRK

ORD

5h 21m

1 stop

5:00 am - 9:36 am

ORD

GRK

4h 36m

1 stop

$581American Airlines

Sun, Jul 26 - Mon, Jul 27

3:05 pm - 12:14 am

GRK

STL

9h 09m

2 stops

5:42 am - 9:29 am

STL

GRK

3h 47m

1 stop

$603American Airlines

Fri, Aug 14 - Mon, Aug 17

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American Airlines flights from Killeen to Illinois

Our best American Airlines deals on Killeen to Illinois flight tickets

American Airlines

Aug 14

GRK12:37 pmKilleen Fort Hood Regional

5h 28m

1 stop

STL6:05 pmLambert-St Louis

Aug 17

STL8:36 amLambert-St Louis

5h 59m

1 stop

GRK2:35 pmKilleen Fort Hood Regional

$289

American Airlines

Aug 14

GRK12:37 pmKilleen Fort Hood Regional

5h 28m

1 stop

STL6:05 pmLambert-St Louis

Aug 17

STL8:36 amLambert-St Louis

5h 59m

1 stop

GRK2:35 pmKilleen Fort Hood Regional

$299

American Airlines

Sep 21

GRK4:09 pmKilleen Fort Hood Regional

5h 00m

1 stop

ORD9:09 pmChicago O'Hare Intl

Sep 23

ORD1:46 pmChicago O'Hare Intl

4h 59m

1 stop

GRK6:45 pmKilleen Fort Hood Regional

$357

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Fri 8/14

12:37 pm-6:05 pm

1 stop5h 28m

Lambert-St Louis

Mon 8/17

8:36 am-2:35 pm

1 stop5h 59m

$289

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Fri 8/14

12:37 pm-6:05 pm

1 stop5h 28m

Lambert-St Louis

Mon 8/17

8:36 am-2:35 pm

1 stop5h 59m

$299

KilleenChicago

GRK - ORD

GRKORD

Killeen Fort Hood Regional

Mon 8/17

3:05 pm-8:30 pm

1 stop5h 25m

Chicago O'Hare Intl

Mon 8/24

7:00 am-12:07 pm

1 stop5h 07m

$357

KilleenChicago

GRK - ORD

GRKORD

Killeen Fort Hood Regional

Wed 9/16

5:00 am-11:09 am

1 stop6h 09m

Chicago O'Hare Intl

Fri 9/18

5:00 am-9:18 am

1 stop4h 18m

$369

KilleenChicago

GRK - ORD

GRKORD

Killeen Fort Hood Regional

Tue 8/11

5:00 am-12:15 pm

1 stop7h 15m

Chicago O'Hare Intl

Thu 8/13

12:11 pm-6:52 pm

1 stop6h 41m

$417

KilleenChicago

GRK - ORD

GRKORD

Killeen Fort Hood Regional

Mon 8/3

7:24 pm-12:50 am

1 stop5h 26m

Chicago O'Hare Intl

Thu 8/6

2:57 pm-9:05 pm

1 stop6h 08m

$467

KilleenChicago

GRK - ORD

GRKORD

Killeen Fort Hood Regional

Thu 7/30

7:24 pm-12:50 am

1 stop5h 26m

Chicago O'Hare Intl

Sun 8/2

5:00 am-12:23 pm

1 stop7h 23m

$484

KilleenChicago

GRK - ORD

GRKORD

Killeen Fort Hood Regional

Sun 7/26

7:24 pm-12:50 am

1 stop5h 26m

Chicago O'Hare Intl

Tue 7/28

4:51 pm-10:27 pm

1 stop5h 36m

$532

Quickest round-trip

KilleenChicago

GRK - ORD

GRKORD

Killeen Fort Hood Regional

Sun 7/26

3:08 pm-8:29 pm

1 stop5h 21m

Chicago O'Hare Intl

Mon 7/27

5:00 am-9:36 am

1 stop4h 36m

$581

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Fri 8/14

3:05 pm-12:14 am

2 stops9h 09m

Lambert-St Louis

Mon 8/17

5:42 am-9:29 am

1 stop3h 47m

$603

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first

How to get the cheapest flight ticket from Killeen to Illinois

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

What is the cheapest airline that flies from Killeen Fort Hood Regional to Illinois?

American Airlines is the most popular carrier operating from Killeen Fort Hood Regional to Illinois

What airlines fly to Illinois?

American Airlines, United Airlines and Frontier are the top three most popular airlines that fly to Illinois from Killeen according to our data. American Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 6 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

Cheap Killeen to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Killeen to Illinois

Fastest flight time	4h 10m
Direct flights	None

The fastest flight from Killeen to Illinois takes 4h 10m

There are no direct flights from Killeen to Illinois. There are no popular flight routes from Killeen to Illinois.

Search flight deals

Frequently asked questions about flying from Killeen to Illinois

When did momondo last update prices for flights from Killeen Fort Hood Regional Airport to Illinois?
Prices for flights from Killeen Fort Hood Regional Airport to Illinois are refreshed on a daily basis.
How old do you have to be to fly from Killeen Fort Hood Regional Airport to Illinois?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Killeen Fort Hood Regional Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The required travel and health documents for your Illinois 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 Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Killeen to Illinois?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Illinois from Killeen.

Can I find flights from Killeen to Illinois with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Killeen to Illinois flights to just show those with flexible booking policies.

How can momondo help me find flights from Killeen to Illinois?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Killeen to Illinois.

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

Yes momondo offers price alerts on flights to Illinois from Killeen. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.