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$235+ 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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
GRK — CHI
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap 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 September 17, 2025.

Round-trip from

$443
(American Airlines)

One-way from

$235
(American Airlines)
From Killeen Fort Hood Regional to Chicago (CHI)
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One-way flight from Killeen Fort Hood Regional to Chicago (CHI)
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Find flight deals from Killeen to Chicago

Cheapest flights from Killeen to Chicago
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 September 17, 2025.

This American Airlines deal was found by Cheapflights users on 9/15. 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 9/305:16 amGRK - ORD
1 stop4h 10mAmerican Airlines
Sat 10/46:30 pmORD - GRK
1 stop4h 15mAmerican Airlines
Deal found 9/15$443
This American Airlines deal was found by Cheapflights users on 9/15. 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 9/174:40 pmGRK - ORD
1 stop7h 19mAmerican Airlines
Tue 9/2311:54 amORD - GRK
1 stop4h 16mAmerican Airlines
Deal found 9/15$444
This American Airlines deal was found by Cheapflights users on 9/16. 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 10/85:16 amGRK - ORD
1 stop4h 33mAmerican Airlines
Sun 10/125:00 amORD - GRK
1 stop5h 06mAmerican Airlines
Deal found 9/16$456
This American Airlines deal was found by Cheapflights users on 9/15. 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 10/96:13 pmGRK - ORD
1 stop5h 40mAmerican Airlines
Wed 10/156:16 pmORD - GRK
1 stop4h 36mAmerican Airlines
Deal found 9/15$509
This American Airlines deal was found by Cheapflights users on 9/14. 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 9/174:40 pmGRK - ORD
1 stop7h 19mAmerican Airlines
Thu 9/181:19 pmORD - GRK
1 stop6h 24mAmerican Airlines
Deal found 9/14$600
This American Airlines deal was found by Cheapflights users on 9/16. 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.
Mon 9/225:16 amGRK - ORD
1 stop4h 10mAmerican Airlines
Thu 9/256:30 pmORD - GRK
1 stop4h 57mAmerican Airlines
Deal found 9/16$753
This American Airlines deal was found by Cheapflights users on 9/16. 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 10/85:16 amGRK - ORD
2 stops6h 11mAmerican Airlines
Sat 10/115:17 pmORD - GRK
1 stop4h 16mAmerican Airlines
Deal found 9/16$799

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 September 17, 2025.
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

Wed 10/8

5:16 am-9:49 am

1 stop4h 33m

Chicago O'Hare Intl

Sun 10/12

5:00 am-10:06 am

1 stop5h 06m

$456

KilleenChicago

GRK - ORD

GRKORD

Killeen Fort Hood Regional

Sat 2/21

5:18 am-11:03 am

1 stop5h 45m

Chicago O'Hare Intl

Wed 2/25

3:19 pm-7:46 pm

1 stop4h 27m

$478

KilleenChicago

GRK - ORD

GRKORD

Killeen Fort Hood Regional

Thu 10/9

6:13 pm-11:53 pm

1 stop5h 40m

Chicago O'Hare Intl

Wed 10/15

9:55 pm-10:06 am

2 stops12h 11m

$596

KilleenChicago

GRK - ORD

GRKORD

Killeen Fort Hood Regional

Tue 9/30

11:34 am-6:02 pm

2 stops6h 28m

Chicago O'Hare Intl

Sat 10/4

6:30 pm-10:45 pm

1 stop4h 15m

$747

KilleenChicago

GRK - ORD

GRKORD

Killeen Fort Hood Regional

Wed 10/8

5:16 am-9:49 am

1 stop4h 33m

$235

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

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.
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

What is the cheapest month to book a flight from Killeen to Chicago?

Currently, August is the cheapest month in which you can book a flight from Killeen to Chicago (average of $245). Flying from Killeen to Chicago in March is currently the most expensive (average of $321). 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.

  • What airport do you fly from for flights from Killeen to Chicago?

    Most people fly from Killeen Fort Hood Regional (GRK) if they book a flight from Killeen to Chicago. On average, Fort Hood Regional has 0 outbound flights to Chicago per day from 1 airline. Killeen Fort Hood Regional is conveniently located just 6.9 mi from Killeen’s city center.

  • How long is the flight from Killeen to Chicago?

    Departing from Killeen to Chicago will take you 4h 33m. There are 932 mi between Killeen and Chicago.

  • What is the cheapest airline to fly from Killeen to Chicago round-trip?

    Cheapflights users have booked flights from Killeen to Chicago round-trip from $337.

  • Can I find deals for flights from Killeen to Chicago that include hotel bookings?

    Yes. In addition to deals on Killeen to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Killeen to Chicago?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Killeen to Chicago.

  • Can I find deals for business class flights from Killeen to Chicago?

    Yes. Cheapflights offers flight deals from Killeen to Chicago by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Killeen to Chicago?

    Currently, August is the cheapest month in which you can book a flight from Killeen to Chicago (average of $245). Flying from Killeen to Chicago in March is currently the most expensive (average of $321). 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.

See more FAQs

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
Lansing
Hammond
Benton Harbor
Porter
Chesterton

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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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$337Average$485FlexibilityNo cancel feeOn-time71%

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