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Cheap flights from Killeen to Illinois from $480

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 Illinois departing on 1/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Killeen to Illinois

Cheap one-way flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:00 am - 10:10 am
GRK
-
PIA
4h 10m1 stop
$480American Airlines
Mon, Jan 5
American Airlines Logo
6:00 am - 10:50 am
GRK
-
STL
4h 50m1 stop
$480American Airlines
Sun, Dec 28
American Airlines Logo
3:58 pm - 11:31 pm
GRK
-
PIA
7h 33m2 stops
$485American Airlines
Mon, Jan 5
American Airlines Logo
6:00 am - 4:23 pm
GRK
-
STL
10h 23m2 stops
$485American Airlines
Sun, Dec 28
Multiple Airlines Logo
6:32 pm - 2:47 pm
GRK
-
STL
44h 15m3 stops
$1,303Multiple Airlines
Sun, Dec 28

American Airlines flights from Killeen to Illinois

Our best American Airlines deals on Killeen to Illinois flight tickets
American Airlines
Dec 19
GRK6:00 amKilleen Fort Hood Regional
4h 50m
1 stop
STL10:50 amLambert-St Louis
Dec 21
STL5:16 amLambert-St Louis
4h 35m
1 stop
GRK9:51 amKilleen Fort Hood Regional
$549
Find similar
American Airlines
Dec 19
GRK6:00 amKilleen Fort Hood Regional
4h 54m
1 stop
ORD10:54 amChicago O'Hare Intl
Dec 21
ORD4:46 pmChicago O'Hare Intl
5h 43m
1 stop
GRK10:29 pmKilleen Fort Hood Regional
$569
Find similar
American Airlines
Dec 19
GRK4:00 pmKilleen Fort Hood Regional
9h 25m
2 stops
STL1:25 amLambert-St Louis
Dec 21
STL3:34 pmLambert-St Louis
6h 55m
1 stop
GRK10:29 pmKilleen Fort Hood Regional
$630
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Killeen to Illinois 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 December 18, 2025.
Use the filters below to find and compare flights from Killeen to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

KilleenPeoria

GRK - PIA

GRKPIA

Killeen Fort Hood Regional

Mon 1/5

6:00 am-10:10 am

1 stop4h 10m

$480

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Sun 12/28

6:00 am-10:50 am

1 stop4h 50m

$480

KilleenPeoria

GRK - PIA

GRKPIA

Killeen Fort Hood Regional

Mon 1/5

3:58 pm-11:31 pm

2 stops7h 33m

$485

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Sun 12/28

6:00 am-4:23 pm

2 stops10h 23m

$485

KilleenSt. Louis

GRK - STL

GRKSTL

Killeen Fort Hood Regional

Sun 12/28

6:32 pm-2:47 pm

3 stops44h 15m

$1,303

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Illinois from

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 time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the morning. Flights from Killeen to Illinois during this time can be as low as $346. Flights in the afternoon are often more expensive with an average ticket price of $458.

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

  • 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 many operators does momondo search for flights from Killeen Fort Hood Regional Airport to Illinois?

  • 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.

Best airlines flying from Killeen to Illinois

Compare and see reviews for airlines that fly from Killeen to Illinois with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $317Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights

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.

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