How long is the flight from Kansas City to Illinois?

Airlines like Southwest, United Airlines, and Delta fly from Kansas City to Illinois in about 1h 46m. The time it takes to get you to your destination can typically vary by up to 4h 59m. Kansas City and Illinois are separated by a distance of 402 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What are the cheapest airlines to fly from Kansas City to Illinois one-way?

$48 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on American Airlines and Frontier, with prices starting from $65 and $72, respectively.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

What are the most popular routes from Kansas City to Illinois?

The most popular flight routes from Kansas City to Illinois are Kansas City - Chicago O'Hare Intl, Kansas City - Chicago Midway and Kansas City - Lambert-St Louis.

What are the cheapest flights from Kansas City to Illinois?

The cheapest flight price from Kansas City to Illinois is $115. On average you can expect to pay $950. The most popular route, (Kansas City - Chicago O'Hare Intl), can usually be booked for $160.

What are the most reliable airlines from Kansas City to Illinois?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Kansas City to Illinois on time: Copa Airlines (82%), ANA (80%), Turkish Airlines (77%).

What are the most popular airlines that fly from Kansas City to Illinois?

Consider United Airlines, American Airlines or Southwest when booking your flight. These represent the most popular airlines when flying from Kansas City to Illinois.

What airport do you fly from for flights from Kansas City to Illinois?

If you book a flight to Illinois from Kansas City, you will be flying from Kansas City, which is the city’s only airport. Kansas City (MCI) is located 17.4 mi from the center of Kansas City.

Can I find deals for flights from Kansas City to Illinois that include hotel bookings?

Yes. In addition to deals on Kansas City to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Kansas City to Illinois?

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

Can I find deals for business class flights from Kansas City to Illinois?

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

$71+ Flights from Kansas City to Illinois

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Cheap flight deals from Kansas City to Illinois

Cheapest flights from Kansas City to Illinois
Explore the most affordable flight options available from Kansas City to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 16, 2025.

Wed 12/245:43 amMCI - ORD

2 stops11h 39mDelta

Wed 1/71:55 pmORD - MCI

2 stops9h 32mDelta

Deal found 12/16

$225

Wed 12/316:30 amMCI - ORD

1 stop6h 24mDelta

Tue 1/612:02 pmORD - MCI

1 stop4h 55mDelta

Deal found 12/14

$234

Wed 12/3110:41 amMCI - MDW

1 stop6h 45mDelta

Tue 1/67:16 pmMDW - MCI

1 stop4h 11mDelta

Deal found 12/14

$234

Wed 12/247:30 amMCI - MDW

Nonstop1h 25mSouthwest

Thu 12/2511:25 amMDW - MCI

1 stop4h 10mSouthwest

Deal found 12/15

$237

Tue 12/308:45 pmMCI - ORD

1 stop27h 27mFrontier

Sat 1/37:00 amORD - MCI

1 stop12h 51mFrontier

Deal found 12/16

$258

Wed 12/246:35 amMCI - ORD

1 stop7h 37mAmerican Airlines

Thu 12/255:13 pmORD - MCI

Nonstop1h 38mAmerican Airlines

Deal found 12/14

$267

Thu 12/257:30 amMCI - MDW

Nonstop1h 25mSouthwest

Sat 1/35:55 pmMDW - MCI

Nonstop1h 30mSouthwest

Deal found 12/14

$273

Thu 12/256:00 amMCI - ORD

Nonstop1h 48mAmerican Airlines

Sat 1/311:25 amORD - MCI

Nonstop1h 52mAmerican Airlines

Deal found 12/14

$274

Wed 12/247:15 amMCI - ORD

1 stop5h 45mSouthwest

Thu 12/252:15 pmORD - MCI

1 stop6h 00mSouthwest

Deal found 12/14

$277

Thu 12/254:12 pmMCI - ORD

1 stop7h 50mDelta

Sat 1/36:45 amORD - MCI

1 stop5h 46mDelta

Deal found 12/14

$293

Thu 12/254:12 pmMCI - MDW

1 stop6h 10mDelta

Sun 1/45:59 pmMDW - MCI

1 stop5h 10mDelta

Deal found 12/14

$293

Thu 12/2512:10 pmMCI - MDW

1 stop4h 40mSouthwest

Sun 1/47:50 amMDW - MCI

2 stops6h 15mSouthwest

Deal found 12/14

$298

Best flights from Kansas City to Illinois
Discover carefully curated flight deals from Kansas City to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 16, 2025.

Sat 1/246:10 amMCI - STL

1 stop6h 45mSouthwest

Tue 1/277:45 pmSTL - MCI

Nonstop1h 10mSouthwest

Deal found 12/14

$181

Fri 1/1611:21 amMCI - STL

1 stop19h 30mMultiple Airlines

Sat 1/178:32 pmSTL - MCI

2 stops13h 59mMultiple Airlines

Deal found 12/14

$205

Wed 1/218:00 amMCI - ORD

Nonstop1h 46mUnited Airlines

Thu 1/228:45 amORD - MCI

Nonstop1h 47mUnited Airlines

Deal found 12/15

$231

Sat 2/1410:30 amMCI - ORD

1 stop6h 24mDelta

Sat 2/215:25 amORD - MCI

1 stop5h 55mDelta

Deal found 12/14

$234

Tue 1/136:10 amMCI - STL

Nonstop1h 15mSouthwest

Thu 1/228:15 amSTL - MCI

1 stop6h 05mSouthwest

Deal found 12/15

$181

Tue 1/136:00 amMCI - MLI

1 stop4h 58mAmerican Airlines

Wed 1/147:31 amMLI - MCI

1 stop6h 59mAmerican Airlines

Deal found 12/15

$419

Wed 1/217:35 amMCI - STL

1 stop3h 40mSouthwest

Wed 1/215:55 pmSTL - MCI

1 stop3h 30mSouthwest

Deal found 12/14

$191

Sat 1/248:00 amMCI - ORD

Nonstop1h 46mUnited Airlines

Sat 1/3112:40 pmORD - MCI

Nonstop1h 42mUnited Airlines

Deal found 12/15

$231

Wed 1/213:10 pmMCI - STL

1 stop5h 50mSouthwest

Thu 1/228:15 amSTL - MCI

1 stop5h 25mSouthwest

Deal found 12/15

$191

Wed 12/316:30 amMCI - ORD

1 stop6h 24mDelta

Tue 1/612:02 pmORD - MCI

1 stop4h 55mDelta

Deal found 12/14

$234

Wed 12/3110:41 amMCI - MDW

1 stop6h 45mDelta

Tue 1/67:16 pmMDW - MCI

1 stop4h 11mDelta

Deal found 12/14

$234

Mon 1/1210:00 amMCI - ORD

Nonstop1h 50mUnited Airlines

Tue 1/1312:45 pmORD - MCI

Nonstop1h 42mUnited Airlines

Deal found 12/14

$235

Sat 1/1710:50 amMCI - MDW

Nonstop1h 25mSouthwest

Sun 1/188:25 amMDW - MCI

Nonstop1h 40mSouthwest

Deal found 12/16

$227

Tue 1/136:15 amMCI - MDW

2 stops6h 33mDelta

Wed 1/146:45 amMDW - MCI

1 stop5h 59mDelta

Deal found 12/14

$256

Thu 1/110:05 amMCI - ORD

Nonstop1h 50mUnited Airlines

Tue 1/68:11 pmORD - MCI

Nonstop1h 48mUnited Airlines

Deal found 12/14

$274

Sat 2/147:40 amMCI - MDW

Nonstop1h 35mSouthwest

Wed 2/2510:00 amMDW - MCI

2 stops7h 00mSouthwest

Deal found 12/14

$229

Sat 1/247:20 amMCI - MDW

Nonstop1h 35mSouthwest

Tue 1/278:25 amMDW - MCI

Nonstop1h 40mSouthwest

Deal found 12/14

$231

Thu 1/2210:00 amMCI - ORD

Nonstop1h 50mUnited Airlines

Sun 1/258:45 amORD - MCI

Nonstop1h 47mUnited Airlines

Deal found 12/15

$280

Tue 1/131:30 pmMCI - MDW

Nonstop1h 25mSouthwest

Wed 1/143:15 pmMDW - MCI

Nonstop1h 30mSouthwest

Deal found 12/14

$231

Sat 2/143:22 pmMCI - MLI

1 stop6h 05mUnited Airlines

Wed 2/183:52 pmMLI - MCI

1 stop6h 07mUnited Airlines

Deal found 12/14

$299

Tue 1/1310:00 amMCI - MLI

1 stop6h 54mUnited Airlines

Tue 1/208:46 amMLI - MCI

1 stop7h 22mUnited Airlines

Deal found 12/16

$299

Mon 1/123:10 pmMCI - MDW

Nonstop1h 25mSouthwest

Tue 1/1310:00 amMDW - MCI

2 stops7h 00mSouthwest

Deal found 12/14

$250

Fri 12/267:46 pmMCI - MLI

1 stop3h 54mAmerican Airlines

Sun 12/286:00 amMLI - MCI

1 stop5h 24mAmerican Airlines

Deal found 12/15

$517

Tue 1/136:05 amMCI - ORD

1 stop7h 25mSouthwest

Wed 1/142:15 pmORD - MCI

1 stop5h 35mSouthwest

Deal found 12/14

$251

Wed 1/216:10 amMCI - ORD

2 stops6h 05mSouthwest

Thu 1/221:45 pmORD - MCI

2 stops7h 10mSouthwest

Deal found 12/13

$265

Wed 3/46:10 amMCI - MDW

1 stop3h 20mSouthwest

Sat 3/79:30 pmMDW - MCI

Nonstop1h 30mSouthwest

Deal found 12/16

$271

Tue 12/306:00 amMCI - MLI

1 stop4h 12mUnited Airlines

Sat 1/310:47 amMLI - MCI

1 stop6h 54mUnited Airlines

Deal found 12/15

$404

Fri 12/2611:13 amMCI - MLI

2 stops24h 20mMultiple Airlines

Sun 12/286:29 pmMLI - MCI

1 stop16h 18mMultiple Airlines

Deal found 12/15

$786

Tue 1/135:45 pmMCI - MLI

2 stops16h 27mUnited Airlines

Wed 1/145:29 pmMLI - MCI

1 stop4h 30mUnited Airlines

Deal found 12/15

$559

Wed 12/3112:47 pmMCI - MLI

2 stops8h 34mUnited Airlines

Sun 1/45:33 pmMLI - MCI

1 stop4h 17mUnited Airlines

Deal found 12/16

$1,157

Last-minute flights from Kansas City to Illinois
Discover last-minute flight deals from Kansas City to Illinois. Data last updated December 16, 2025 and is based on user searches.

Wed 12/245:43 amMCI - ORD

2 stops11h 39mDelta

Wed 1/71:55 pmORD - MCI

2 stops9h 32mDelta

Deal found 12/16

$225

Sun 1/118:23 pmMCI - STL

1 stop13h 39mMultiple Airlines

Sun 1/181:35 pmSTL - MCI

1 stop9h 58mMultiple Airlines

Deal found 12/13

$224

Sun 1/118:23 pmMCI - STL

1 stop13h 39mFrontier

Sun 1/1810:09 pmSTL - MCI

2 stops20h 09mFrontier

Deal found 12/13

$227

Tue 1/136:10 amMCI - STL

Nonstop1h 15mSouthwest

Thu 1/228:15 amSTL - MCI

1 stop6h 05mSouthwest

Deal found 12/15

$181

Tue 1/1310:00 amMCI - ORD

Nonstop1h 50mUnited Airlines

Tue 1/135:56 pmORD - MCI

Nonstop1h 51mUnited Airlines

Deal found 12/15

$231

Tue 1/137:35 amMCI - MDW

Nonstop1h 35mSouthwest

Tue 1/133:15 pmMDW - MCI

Nonstop1h 30mSouthwest

Deal found 12/15

$231

Fri 1/1611:21 amMCI - STL

1 stop19h 30mMultiple Airlines

Sat 1/178:32 pmSTL - MCI

2 stops13h 59mMultiple Airlines

Deal found 12/14

$205

Sat 1/1710:50 amMCI - MDW

Nonstop1h 25mSouthwest

Sun 1/188:25 amMDW - MCI

Nonstop1h 40mSouthwest

Deal found 12/16

$227

Tue 1/2011:40 amMCI - ORD

1 stop6h 15mDelta

Thu 1/2910:35 amORD - MCI

1 stop6h 25mDelta

Deal found 12/16

$232

Wed 1/213:10 pmMCI - STL

1 stop5h 50mSouthwest

Thu 1/228:15 amSTL - MCI

1 stop5h 25mSouthwest

Deal found 12/15

$191

Wed 1/2111:00 amMCI - STL

2 stops5h 50mSouthwest

Wed 1/215:50 pmSTL - MCI

1 stop4h 30mSouthwest

Deal found 12/14

$196

Wed 1/216:00 amMCI - MDW

1 stop7h 30mSouthwest

Thu 1/226:00 amMDW - MCI

1 stop4h 20mSouthwest

Deal found 12/15

$232

One-way flights from Kansas City to Illinois
Search for one-way flight options from Kansas City to Illinois. Find affordable one-way fares based on user searches. Data last updated December 16, 2025.

Fri 1/168:27 pmMCI - STL

1 stop18h 21mFrontier

Deal found 12/15

$71

Thu 1/1511:26 amMCI - ORD

1 stop9h 31mMultiple Airlines

Deal found 12/15

$76

Wed 1/76:15 pmMCI - ORD

1 stop17h 07mSpirit Airlines

Deal found 12/16

$78

Wed 12/2411:33 amMCI - ORD

1 stop7h 00mFrontier

Deal found 12/15

$81

Mon 3/92:09 pmMCI - MDW

1 stop8h 36mFrontier

Deal found 12/15

$81

Mon 1/1211:26 amMCI - ORD

1 stop23h 56mSpirit Airlines

Deal found 12/15

$85

Thu 2/266:54 pmMCI - MDW

1 stop28h 57mFrontier

Deal found 12/16

$85

Tue 1/136:10 amMCI - STL

Nonstop1h 15mSouthwest

Deal found 12/13

$86

Mon 1/1211:06 amMCI - ORD

1 stop11h 33mFrontier

Deal found 12/16

$87

Mon 1/1211:06 amMCI - MDW

1 stop11h 11mFrontier

Deal found 12/16

$87

Thu 2/58:43 pmMCI - ORD

1 stop14h 14mFrontier

Deal found 12/16

$89

Wed 2/114:39 pmMCI - MDW

2 stops28h 33mFrontier

Deal found 12/16

$90

Find flight deals from Kansas City to Illinois

Most accurate provider	Mytrip 3 stars
Most trusted provider	Mytrip 3 stars
Round-trip from	$181 (Southwest)
One-way from	$71 (Kiwi.com)
Popular in	March
Cheapest in	September
Average price	$319

Provider with most accurate pricing for Kansas City-Chicago (CHI) flight deals.

Search Deals

Provider most trusted by Cheapflights users for Kansas City-Chicago (CHI) flights.

Search Deals

From Kansas City to Illinois

Search Deals

One-way flight from Kansas City to Illinois

Search Deals

Highest demand for flights based on searches. 7% potential increase in price ($23 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Kansas City to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Sat 1/24

6:10 am-12:55 pm

1 stop6h 45m

Lambert-St Louis

Tue 1/27

7:45 pm-8:55 pm

Nonstop1h 10m

$181

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Tue 1/13

6:10 am-7:25 am

Nonstop1h 15m

Lambert-St Louis

Thu 1/22

8:15 am-2:20 pm

1 stop6h 05m

$181

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Wed 1/21

7:35 am-11:15 am

1 stop3h 40m

Lambert-St Louis

Wed 1/21

5:55 pm-9:25 pm

1 stop3h 30m

$191

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Wed 1/21

3:10 pm-9:00 pm

1 stop5h 50m

Lambert-St Louis

Thu 1/22

8:15 am-1:40 pm

1 stop5h 25m

$191

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Fri 1/16

11:21 am-6:51 am

1 stop19h 30m

Lambert-St Louis

Sat 1/17

8:32 pm-10:31 am

2 stops13h 59m

$205

Kansas CityChicago

MCI - MDW

MCIMDW

Kansas City

Sat 1/17

10:50 am-12:15 pm

Nonstop1h 25m

Chicago Midway

Sun 1/18

8:25 am-10:05 am

Nonstop1h 40m

$227

Kansas CityChicago

MCI - MDW

MCIMDW

Kansas City

Sat 2/14

7:40 am-9:15 am

Nonstop1h 35m

Chicago Midway

Wed 2/25

10:00 am-5:00 pm

2 stops7h 00m

$229

Kansas CityChicago

MCI - ORD

MCIORD

Kansas City

Wed 1/21

8:00 am-9:46 am

Nonstop1h 46m

Chicago O'Hare Intl

Thu 1/22

8:45 am-10:32 am

Nonstop1h 47m

$231

Kansas CityChicago

MCI - ORD

MCIORD

Kansas City

Sat 1/24

8:00 am-9:46 am

Nonstop1h 46m

Chicago O'Hare Intl

Sat 1/31

12:40 pm-2:22 pm

Nonstop1h 42m

$231

Kansas CityChicago

MCI - MDW

MCIMDW

Kansas City

Sat 1/24

7:20 am-8:55 am

Nonstop1h 35m

Chicago Midway

Tue 1/27

8:25 am-10:05 am

Nonstop1h 40m

$231

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 60 results

...

Best time to book a flight from Kansas City to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Kansas City 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 Kansas City to Illinois

What is the cheapest month to book a flight from Kansas City to Illinois?

Currently, June is the cheapest month in which you can book a flight from Kansas City to Illinois (average of $100). Flying from Kansas City to Illinois in March is currently the most expensive (average of $245). 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.

What is the cheapest time of day to fly from MCI to IL?

One of the essential ways to save on airfare from Kansas City to Illinois is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 42% on airfare.

What is the cheapest day to fly from Kansas City to Illinois?

Travelers seeking maximum savings on their Kansas City to Illinois flight should consider departing on Wednesday mornings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Illinois

Read through reviews of airlines operating flights from Kansas City to Illinois, such as Southwest, United Airlines, and American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Southwest

7.9

Good

4,250 reviews

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

United Airlines

7.4

Good

9,094 reviews

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

American Airlines

7.2

Good

11,047 reviews

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Frontier

5.8

Fair

3,082 reviews

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

What airport do you fly from for flights from Kansas City to Illinois?
If you book a flight to Illinois from Kansas City, you will be flying from Kansas City, which is the city’s only airport. Kansas City (MCI) is located 17.4 mi from the center of Kansas City.
How long is the flight from Kansas City to Illinois?
Airlines like Southwest, United Airlines, and Delta fly from Kansas City to Illinois in about 1h 46m. The time it takes to get you to your destination can typically vary by up to 4h 59m. Kansas City and Illinois are separated by a distance of 402 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the cheapest airlines to fly from Kansas City to Illinois one-way?
$48 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on American Airlines and Frontier, with prices starting from $65 and $72, respectively.
What are the most popular routes from Kansas City to Illinois?
The most popular flight routes from Kansas City to Illinois are Kansas City - Chicago O'Hare Intl, Kansas City - Chicago Midway and Kansas City - Lambert-St Louis.
What are the most reliable airlines from Kansas City to Illinois?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Kansas City to Illinois on time: Copa Airlines (82%), ANA (80%), Turkish Airlines (77%).
What are the cheapest flights from Kansas City to Illinois?
The cheapest flight price from Kansas City to Illinois is $115. On average you can expect to pay $950. The most popular route, (Kansas City - Chicago O'Hare Intl), can usually be booked for $160.
Can I find deals for flights from Kansas City to Illinois that include hotel bookings?
Yes. In addition to deals on Kansas City to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Kansas City to Illinois?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kansas City to Illinois.
Can I find deals for business class flights from Kansas City to Illinois?
Yes. Cheapflights offers flight deals from Kansas City to Illinois 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 Kansas City to Illinois?
Currently, June is the cheapest month in which you can book a flight from Kansas City to Illinois (average of $100). Flying from Kansas City to Illinois in March is currently the most expensive (average of $245). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Kansas City to Illinois

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Complete your trip

Illinois car rentals

Chicago O'Hare Intl Airport car rentals

Chicago Midway Airport car rentals

Moline Quad-City Airport car rentals

Greater Peoria Airport car rentals

Bloomington-Normal Airport car rentals

Chicago Greater Rockford Airport car rentals

Springfield Capital Airport car rentals

Champaign University-Willard Airport car rentals

Belleville Airport car rentals

Marion Williamson County Airport car rentals

Quincy Regional Airport car rentals

Top 3 airlines flying from Kansas City to Illinois

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$170	Average$329	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$192	Average$310	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$217	Average$348	FlexibilityNo cancel fee	On-time63%

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$71+ Cheap flights from Kansas City (MCI) to Illinois

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 1/16. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Kansas City to Illinois

Cheapest flights from Kansas City to IllinoisExplore the most affordable flight options available from Kansas City to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 16, 2025.

Explore the most affordable flight options available from Kansas City to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 16, 2025.

Find flight deals from Kansas City to Illinois

Keep the following information in mind while searching for Kansas City to Illinois flight deals. Data was last updated December 16, 2025.

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Best time to book a flight from Kansas City to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Kansas City with our price prediction graph.

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Everything you need to know about your flight from Kansas City to Illinois

What is the cheapest month to book a flight from Kansas City to Illinois?

What is the cheapest time of day to fly from MCI to IL?

Find hourly flight availability from Kansas City to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 16, 2025.

What is the cheapest day to fly from Kansas City to Illinois?

Use this chart to determine the cheapest time to fly round-trip from Kansas City to Illinois. Price data was last updated on December 16, 2024.

Reviews of airlines servicing Illinois

Read through reviews of airlines operating flights from Kansas City to Illinois, such as Southwest, United Airlines, and American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Kansas City to Illinois. 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 Kansas City to Illinois

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Top 3 airlines flying from Kansas City to Illinois

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Cheapest flights from Kansas City to Illinois
Explore the most affordable flight options available from Kansas City to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 16, 2025.