$276 Find Cheap Flights from Killeen to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Killeen to Illinois departing on 5/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Killeen to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Killeen to Illinois, as well as popular online travel agencies
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Cheap Flights from Killeen to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
St. Louis
St. Louis1 stop$434
St. Louis
St. Louis1 stop$434

Book Cheap Killeen to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Killeen to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Killeen to Illinois

Thu, Apr 16 - Tue, Apr 21
American Airlines Logo
5:00 am - 9:39 am
GRK
-
ORD
4h 39m
1 stop
American Airlines Logo
3:07 pm - 7:54 pm
ORD
-
GRK
4h 47m
1 stop
$394American Airlines
Thu, Jun 4 - Sat, Jun 6
American Airlines Logo
7:21 pm - 12:42 am
GRK
-
ORD
5h 21m
1 stop
American Airlines Logo
6:00 am - 12:24 pm
ORD
-
GRK
6h 24m
1 stop
$404American Airlines
Tue, Mar 31 - Sat, Apr 4
American Airlines Logo
7:00 am - 10:59 am
GRK
-
STL
3h 59m
1 stop
American Airlines Logo
4:13 pm - 10:03 pm
STL
-
GRK
5h 50m
1 stop
$434American Airlines
Tue, Mar 31 - Sat, Apr 4
American Airlines Logo
7:00 am - 10:59 am
GRK
-
STL
3h 59m
1 stop
American Airlines Logo
2:25 pm - 10:03 pm
STL
-
GRK
7h 38m
2 stops
$516American Airlines
Mon, Jun 15 - Tue, Jun 30
American Airlines Logo
7:21 pm - 12:42 am
GRK
-
ORD
5h 21m
1 stop
American Airlines Logo
5:00 am - 9:34 am
ORD
-
GRK
4h 34m
1 stop
$541American Airlines
Fri, Apr 10 - Sat, Apr 11
American Airlines Logo
7:09 pm - 9:05 am
GRK
-
ORD
13h 56m
2 stops
American Airlines Logo
11:43 am - 6:39 pm
ORD
-
GRK
6h 56m
1 stop
$553American Airlines
Sat, Jun 20 - Wed, Jun 24
American Airlines Logo
3:07 pm - 8:21 pm
GRK
-
ORD
5h 14m
1 stop
American Airlines Logo
9:40 am - 2:37 pm
ORD
-
GRK
4h 57m
1 stop
$577American Airlines
Fri, Apr 10 - Tue, Apr 14
American Airlines Logo
7:09 pm - 11:48 pm
GRK
-
ORD
4h 39m
1 stop
American Airlines Logo
5:00 am - 9:35 am
ORD
-
GRK
4h 35m
1 stop
$578American Airlines
Mon, Jun 15 - Thu, Jun 25
American Airlines Logo
7:21 pm - 12:42 am
GRK
-
ORD
5h 21m
1 stop
American Airlines Logo
6:02 pm - 10:44 pm
ORD
-
GRK
4h 42m
1 stop
$585American Airlines
Fri, May 15 - Mon, May 18
American Airlines Logo
7:09 pm - 11:48 pm
GRK
-
ORD
4h 39m
1 stop
American Airlines Logo
6:05 am - 11:21 am
ORD
-
GRK
5h 16m
1 stop
$597American Airlines
Booking Insights

KAYAK's insights & trends for Killeen to Illinois flights

Get data-powered insights and trends into flights from Killeen to Illinois to help you find the cheapest flights, the best time to fly and much more.

How long does a flight from Killeen to Illinois take?

The duration of a flight to Illinois depends on your arrival airport. The shortest routes to Illinois from Killeen are to Peoria, which takes 4h 04m, Chicago, which takes 4h 39m, and Champaign, which takes 5h 03m.

Good to know

Cheapest flight$276
Flight from Killeen to Chicago

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Killeen to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Killeen to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Killeen to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Killeen to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Killeen to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Killeen to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Killeen to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Killeen to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Killeen to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Killeen to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Killeen to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
American AirlinesOverall score based on 11473 reviews
7.9Crew
7.5Boarding
6.9Entertainment
7.2Comfort
6.4Food
Airline reviews

Jill was the flight attendant in first class she was fabulous!! Best flight attendant I have had in years.!! And I fly every other week. Other can learn from her!!

8.0 ExcellentSonia, Mar 2026
BOS - ORD
Read more American Airlines reviews

Jill was the flight attendant in first class she was fabulous!! Best flight attendant I have had in years.!! And I fly every other week. Other can learn from her!!

As a first class customer, there was no power the entire flight which limited my ability to work. I find this unacceptable. The first 11 rows on the left side of the plan were out. I was only offered the option to charge my phone which was not the issue because my laptop was out of power. I asked if there was anything that can be done for me, and the answer was, "no". I was not offered any type of compensation for this AA problem which caused me unnecessary stress due to inability to address business issues on an already challenging travel day. Flight attendants tried to reset the power once but that was the extent of their support. Very disappointing for the lack of expected services on a flight. Please contact me with customer focused response to this complaint.

There was no inflight service. Once we landed we were delayed to find a gate for an hour and a half which was 1/2 the total time in the air.

The chicken wrap was tiny ($13 for what looked like a 1/3 of a normal wrap?) and disgusting.

It was good experience this time. The flight was on time.

There was a delay with the plan which cause the flight to leave later and once arrived in Chicago there was another delay and some passengers missed their connecting flights

The gate agent had a really bad attitude and refused to help me get on the standby list. She just handed me a card and said I needed to call a number. I asked her to help with the AA app on my phone and she just shrugged and said she didnt know. After a few phone calls, I eventually just went to a different gate agent on the other side of the terminal and got the help I needed.

Overall, my last three trips on American Airlines have all been either delayed or "rescheduled" due to mechanical issues. At least on delay caused me to miss two possible connecting flights each later than the first. My last option for my last connection required the assistance of the onsite service desk (O'Hare Airport). The wait time for the service desk was such that it jeopardized getting booked on the last connecting flight available for the night. Suffice it to say, my latest experiences with American Airlines have caused me extensive loss of productive business and personal time and can therefore be classified as significantly less than satisfactory.

Waiting for gate in RDU for more than 20mins is crazy.

American Airlines was great and worked very hard to change my ticket so I could get an earlier, direct flight back to Dallas. However, I was informed that Kayak made mistakes with my itinerary and classified my ticket as desiring to be on the earlier flight instead of taking the necessary step of calling AA to get me on the standby list. This ended up keeping me from being added to the standby list and delayed me getting home by 6 hours. I am happy to discuss this further with Kayak so they can correct their procedures so this won't happen again.

Everything you need to know for your flight from Killeen to Illinois

Information on your arrival and departure airports