$159+ Cheap flights from Killeen (GRK) to Chicago (CHI)
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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
GRK — CHI
Mar 15 — Mar 221
1 adult, Economy
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Find cheap flights from Killeen to Chicago 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 Killeen to Chicago
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Cheapest flights from Killeen to ChicagoExplore the most affordable flight options available from Killeen to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 13, 2026.
Explore the most affordable flight options available from Killeen to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 13, 2026.
This American Airlines deal was found by Cheapflights users on 2/11. 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.
Fri 4/173:54 pm
GRK
- ORD
1 stop6h 51m
American Airlines
Mon 4/205:00 am
ORD
- GRK
1 stop4h 35m
American Airlines
Deal found 2/11![American Airlines logo]()
$327
This American Airlines deal was found by Cheapflights users on 2/11. 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.
Wed 3/1110:15 am
GRK
- ORD
2 stops11h 09m
American Airlines
Tue 3/1710:10 pm
ORD
- GRK
2 stops11h 35m
American Airlines
Deal found 2/11![American Airlines logo]()
$405
This American Airlines deal was found by Cheapflights users on 2/11. 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.
Wed 3/1110:15 am
GRK
- ORD
2 stops11h 09m
American Airlines
Mon 3/1610:10 pm
ORD
- GRK
2 stops11h 35m
American Airlines
Deal found 2/11![American Airlines logo]()
$442
This American Airlines deal was found by Cheapflights users on 2/11. 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.
Fri 3/133:59 pm
GRK
- ORD
1 stop6h 25m
American Airlines
Tue 3/1710:10 pm
ORD
- GRK
2 stops11h 35m
American Airlines
Deal found 2/11![American Airlines logo]()
$456
This American Airlines deal was found by Cheapflights users on 2/11. 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.
Thu 3/126:33 pm
GRK
- ORD
1 stop5h 03m
American Airlines
Tue 3/1710:10 pm
ORD
- GRK
2 stops11h 35m
American Airlines
Deal found 2/11![American Airlines logo]()
$472
This American Airlines deal was found by Cheapflights users on 2/11. 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.
Fri 3/136:33 pm
GRK
- ORD
1 stop5h 03m
American Airlines
Mon 3/1610:10 pm
ORD
- GRK
2 stops11h 35m
American Airlines
Deal found 2/11![American Airlines logo]()
$493
This American Airlines deal was found by Cheapflights users on 2/11. 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.
Thu 3/126:33 pm
GRK
- ORD
1 stop5h 03m
American Airlines
Mon 3/1610:10 pm
ORD
- GRK
2 stops11h 35m
American Airlines
Deal found 2/11![American Airlines logo]()
$509
Best flights from Killeen to ChicagoDiscover carefully curated flight deals from Killeen to Chicago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 13, 2026.
Discover carefully curated flight deals from Killeen to Chicago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 13, 2026.
This American Airlines deal was found by Cheapflights users on 2/11. 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.
Fri 4/173:54 pm
GRK
- ORD
1 stop6h 51m
American Airlines
Mon 4/205:00 am
ORD
- GRK
1 stop4h 35m
American Airlines
Deal found 2/11![American Airlines logo]()
$327
This American Airlines deal was found by Cheapflights users on 2/11. 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.
Wed 3/1110:15 am
GRK
- ORD
2 stops11h 09m
American Airlines
Tue 3/1710:10 pm
ORD
- GRK
2 stops11h 35m
American Airlines
Deal found 2/11![American Airlines logo]()
$405
This American Airlines deal was found by Cheapflights users on 2/11. 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.
Wed 3/1110:15 am
GRK
- ORD
2 stops11h 09m
American Airlines
Mon 3/1610:10 pm
ORD
- GRK
2 stops11h 35m
American Airlines
Deal found 2/11![American Airlines logo]()
$442
This American Airlines deal was found by Cheapflights users on 2/11. 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.
Fri 3/133:59 pm
GRK
- ORD
1 stop6h 25m
American Airlines
Tue 3/1710:10 pm
ORD
- GRK
2 stops11h 35m
American Airlines
Deal found 2/11![American Airlines logo]()
$456
This American Airlines deal was found by Cheapflights users on 2/11. 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.
Thu 3/126:33 pm
GRK
- ORD
1 stop5h 03m
American Airlines
Tue 3/1710:10 pm
ORD
- GRK
2 stops11h 35m
American Airlines
Deal found 2/11![American Airlines logo]()
$472
This American Airlines deal was found by Cheapflights users on 2/11. 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.
Thu 3/126:33 pm
GRK
- ORD
1 stop5h 03m
American Airlines
Mon 3/1610:10 pm
ORD
- GRK
2 stops11h 35m
American Airlines
Deal found 2/11![American Airlines logo]()
$509
This American Airlines deal was found by Cheapflights users on 2/10. 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.
Fri 5/87:09 pm
GRK
- ORD
1 stop4h 39m
American Airlines
Sun 5/106:05 am
ORD
- GRK
1 stop5h 16m
American Airlines
Deal found 2/10![American Airlines logo]()
$562
This American Airlines deal was found by Cheapflights users on 2/10. 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.
Thu 5/73:54 pm
GRK
- ORD
1 stop6h 26m
American Airlines
Sun 5/108:10 am
ORD
- GRK
1 stop7h 14m
American Airlines
Deal found 2/10![American Airlines logo]()
$562
Last-minute flights from Killeen to ChicagoDiscover last-minute flight deals from Killeen to Chicago. Data last updated February 13, 2026 and is based on user searches.
Discover last-minute flight deals from Killeen to Chicago. Data last updated February 13, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 2/11. 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.
Wed 3/1110:15 am
GRK
- ORD
2 stops11h 09m
American Airlines
Tue 3/1710:10 pm
ORD
- GRK
2 stops11h 35m
American Airlines
Deal found 2/11![American Airlines logo]()
$405
This American Airlines deal was found by Cheapflights users on 2/11. 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.
Wed 3/1110:15 am
GRK
- ORD
2 stops11h 09m
American Airlines
Mon 3/1610:10 pm
ORD
- GRK
2 stops11h 35m
American Airlines
Deal found 2/11![American Airlines logo]()
$442
This American Airlines deal was found by Cheapflights users on 2/11. 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.
Wed 3/1110:15 am
GRK
- ORD
2 stops11h 09m
American Airlines
Sun 3/156:10 am
ORD
- GRK
1 stop5h 16m
American Airlines
Deal found 2/11![American Airlines logo]()
$575
This American Airlines deal was found by Cheapflights users on 2/11. 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.
Thu 3/126:33 pm
GRK
- ORD
1 stop5h 03m
American Airlines
Tue 3/1710:10 pm
ORD
- GRK
2 stops11h 35m
American Airlines
Deal found 2/11![American Airlines logo]()
$472
This American Airlines deal was found by Cheapflights users on 2/11. 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.
Thu 3/126:33 pm
GRK
- ORD
1 stop5h 03m
American Airlines
Mon 3/1610:10 pm
ORD
- GRK
2 stops11h 35m
American Airlines
Deal found 2/11![American Airlines logo]()
$509
This American Airlines deal was found by Cheapflights users on 2/11. 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.
Fri 3/133:59 pm
GRK
- ORD
1 stop6h 25m
American Airlines
Tue 3/1710:10 pm
ORD
- GRK
2 stops11h 35m
American Airlines
Deal found 2/11![American Airlines logo]()
$456
This American Airlines deal was found by Cheapflights users on 2/11. 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.
Fri 3/136:33 pm
GRK
- ORD
1 stop5h 03m
American Airlines
Mon 3/1610:10 pm
ORD
- GRK
2 stops11h 35m
American Airlines
Deal found 2/11![American Airlines logo]()
$493
One-way flights from Killeen to ChicagoSearch for one-way flight options from Killeen to Chicago. Find affordable one-way fares based on user searches. Data last updated February 13, 2026.
Search for one-way flight options from Killeen to Chicago. Find affordable one-way fares based on user searches. Data last updated February 13, 2026.
This American Airlines deal was found by Cheapflights users on 2/12. 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.
Tue 3/246:33 pm
GRK
- ORD
1 stop5h 03m
American Airlines
Deal found 2/12![American Airlines logo]()
$159
This American Airlines deal was found by Cheapflights users on 2/10. 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.
Sun 3/86:33 pm
GRK
- ORD
1 stop5h 03m
American Airlines
Deal found 2/10![American Airlines logo]()
$206
This American Airlines deal was found by Cheapflights users on 2/11. 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.
Wed 3/1110:15 am
GRK
- ORD
1 stop5h 00m
American Airlines
Deal found 2/11![American Airlines logo]()
$241
This American Airlines deal was found by Cheapflights users on 2/11. 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.
Fri 3/136:33 pm
GRK
- ORD
1 stop5h 03m
American Airlines
Deal found 2/11![American Airlines logo]()
$264
This American Airlines deal was found by Cheapflights users on 2/11. 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.
Thu 3/123:59 pm
GRK
- ORD
1 stop6h 25m
American Airlines
Deal found 2/11![American Airlines logo]()
$280
This American Airlines deal was found by Cheapflights users on 2/12. 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.
Tue 2/176:33 pm
GRK
- ORD
1 stop5h 03m
American Airlines
Deal found 2/12![American Airlines logo]()
$449
This American Airlines deal was found by Cheapflights users on 2/12. 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.
Thu 2/196:33 pm
GRK
- ORD
1 stop6h 22m
American Airlines
Deal found 2/12![American Airlines logo]()
$490
This American Airlines deal was found by Cheapflights users on 2/12. 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.
Wed 2/186:33 pm
GRK
- ORD
2 stops11h 56m
American Airlines
Deal found 2/12![American Airlines logo]()
$575
Find flight deals from Killeen to Chicago
Discover tips and strategies to find the most affordable flight options for your journey from Killeen (GRK) to Chicago (CHI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $327 (American Airlines) |
One-way from | $159 (American Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Killeen to Chicago 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 February 13, 2026.
Use the filters below to find and compare flights from Killeen to Chicago that are best for you.
Fly from
Killeen
Fly to
Chicago
Route
Depart
Return
Price
KilleenChicago
GRK - ORD
GRKORD
Killeen Fort Hood Regional
Fri 4/17
3:54 pm-10:45 pm
1 stop6h 51m
Chicago O'Hare Intl
Mon 4/20
5:00 am-9:35 am
1 stop4h 35m
$327
KilleenChicago
GRK - ORD
GRKORD
Killeen Fort Hood Regional
Wed 3/11
10:15 am-9:24 pm
2 stops11h 09m
Chicago O'Hare Intl
Tue 3/17
10:10 pm-9:45 am
2 stops11h 35m
$405
KilleenChicago
GRK - ORD
GRKORD
Killeen Fort Hood Regional
Wed 3/11
10:15 am-9:24 pm
2 stops11h 09m
Chicago O'Hare Intl
Mon 3/16
10:10 pm-9:45 am
2 stops11h 35m
$442
KilleenChicago
GRK - ORD
GRKORD
Killeen Fort Hood Regional
Fri 3/13
3:59 pm-10:24 pm
1 stop6h 25m
Chicago O'Hare Intl
Tue 3/17
10:10 pm-9:45 am
2 stops11h 35m
$456
KilleenChicago
GRK - ORD
GRKORD
Killeen Fort Hood Regional
Thu 3/12
6:33 pm-11:36 pm
1 stop5h 03m
Chicago O'Hare Intl
Tue 3/17
10:10 pm-9:45 am
2 stops11h 35m
$472
KilleenChicago
GRK - ORD
GRKORD
Killeen Fort Hood Regional
Thu 3/12
6:33 pm-11:36 pm
1 stop5h 03m
Chicago O'Hare Intl
Mon 3/16
10:10 pm-9:45 am
2 stops11h 35m
$509
KilleenChicago
GRK - ORD
GRKORD
Killeen Fort Hood Regional
Fri 5/8
7:09 pm-11:48 pm
1 stop4h 39m
Chicago O'Hare Intl
Sun 5/10
6:05 am-11:21 am
1 stop5h 16m
$562
KilleenChicago
GRK - ORD
GRKORD
Killeen Fort Hood Regional
Thu 5/7
3:54 pm-10:20 pm
1 stop6h 26m
Chicago O'Hare Intl
Sun 5/10
8:10 am-3:24 pm
1 stop7h 14m
$562
KilleenChicago
GRK - ORD
GRKORD
Killeen Fort Hood Regional
Tue 3/24
6:33 pm-11:36 pm
1 stop5h 03m
$159
KilleenChicago
GRK - ORD
GRKORD
Killeen Fort Hood Regional
Sun 3/8
6:33 pm-11:36 pm
1 stop5h 03m
$206
Showing 1-10 of 16 results
Compare providers for flights from Killeen to Chicago
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Killeen to Chicago in February.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Killeen-Chicago flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Killeen-Chicago flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Killeen-Chicago flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Killeen-Chicago flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Killeen-Chicago flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Killeen to Chicago
Have a flexible travel schedule? Discover the best time to fly to Chicago from Killeen with our price prediction graph.
GRK-CHI
GRK-ORD
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Killeen to Chicago
GRK-CHI
GRK-ORD
What is the cheapest month to book a flight from Killeen to Chicago?
Currently, January is the cheapest month in which you can book a flight from Killeen to Chicago (average of $54). Flying from Killeen to Chicago in May is currently the most expensive (average of $162). 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.
Related info for your journey
Find useful and relevant information for your journey from Killeen to Chicago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Chicago?
Book flights to Chicago if you plan to visit one of these locationsLansing
Merrillville
Hammond
Porter
Benton Harbor
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Alternative routes for Killeen to Chicago
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Other flights to Chicago
Explore flights to Chicago departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 13, 2026.
Complete your trip
Complete your trip to Chicago by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from Killeen to Chicago, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Killeen and Chicago flights
Browse other Killeen and Chicago flight options. Last updated on February 13, 2026.
Popular flight searches
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Killeen to Chicago flights
Consider these flights traveling from Killeen to Chicago.
Top airline flying from Killeen to Chicago
Discover the top airline that operate flights from Killeen to Chicago. 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 February 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$317 | Average$485 | FlexibilityNo cancel fee | On-time71% |