$172+ Cheap flights from Illinois to Killeen (GRK)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/18. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Illinois to Killeen with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Illinois to Killeen
Keep the following information in mind while searching for Illinois to Killeen flight deals. Data was last updated April 24, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $308 (American Airlines) |
One-way from | $172 (American Airlines) |
Find flight deals from Illinois to Killeen
Cheapest flights from Illinois to KilleenExplore the most affordable flight options available from Illinois to Killeen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.
Explore the most affordable flight options available from Illinois to Killeen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.
This American Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to Killeen 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, Cheapflights users made 2,558,603 searches. Data last updated April 24, 2025.
Use the filters below to find and compare flights from Illinois to Killeen that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
ChicagoKilleen
ORD - GRK
ORDGRK
Chicago O'Hare Intl
Fri 6/20
5:00 am-9:59 am
1 stop4h 59m
Killeen Fort Hood Regional
Tue 7/1
12:39 pm-6:35 pm
1 stop5h 56m
ChampaignKilleen
CMI - GRK
CMIGRK
Champaign University-Willard
Fri 5/23
2:57 pm-8:13 pm
1 stop5h 16m
Killeen Fort Hood Regional
Thu 5/29
10:22 am-2:27 pm
1 stop4h 05m
St. LouisKilleen
STL - GRK
STLGRK
Lambert-St Louis
Thu 7/10
9:25 am-3:59 pm
1 stop6h 34m
Killeen Fort Hood Regional
Sun 7/13
4:29 pm-8:48 pm
1 stop4h 19m
ChicagoKilleen
ORD - GRK
ORDGRK
Chicago O'Hare Intl
Wed 6/18
4:56 pm-11:26 pm
1 stop6h 30m
Best time to book a flight from Illinois to Killeen
Have a flexible travel schedule? Discover the best time to fly to Killeen from Illinois with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Illinois to Killeen
What is the cheapest month to book a flight from Illinois to Killeen?
Currently, January is the cheapest month in which you can book a flight from Illinois to Killeen (average of $316). Flying from Illinois to Killeen in June is currently the most expensive (average of $475). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Rainfall in Killeen by month
Plan your trip to Killeen by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Killeen ranges from 1.5 - 4.4 inches per month. October is typically the wettest month, when rainfall can reach 4.4 in. March is typically the driest time to visit Killeen when rainfall is around 1.5 in.
Temperature in Killeen by month
Plan your trip to Killeen by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Killeen, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 46.4 F).
Reviews of airlines servicing Killeen
Get insights into the airlines that provide service to Killeen. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Killeen. Reviews last updated April 24, 2025.
Comfort
Crew
Overall
Entertainment
Boarding
Food
Reviews
Anonymous,Jan 2025
PIT - DFW
Comfort
Crew
Overall
Entertainment
Boarding
Food
Reviews
Anonymous,Jan 2025
PIT - DFW
Related info for your journey
Find useful and relevant information for your journey from Illinois to Killeen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Illinois to Killeen
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Illinois to Killeen
Discover the top airline that operate flights from Illinois to Killeen. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 24, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$236 | Average$450 | FlexibilityNo cancel fee | On-time71% |