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$66+ 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — ORD
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap 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 September 11, 2025.

Round-trip from

$136
(Kiwi.com)

One-way from

$66
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$210
From Kansas City to Illinois
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One-way flight from Kansas City to Illinois
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Highest demand for flights based on searches. 7% potential increase in price ($23 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/128:38 pmMCI - STL
1 stop12h 29mFrontier
Tue 10/147:52 pmSTL - MCI
1 stop22h 03mFrontier
Deal found 9/10$136
This Southwest deal was found by Cheapflights users on 9/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/14:45 pmMCI - STL
Nonstop1h 05mSouthwest
Wed 10/810:20 amSTL - MCI
Nonstop1h 05mSouthwest
Deal found 9/9$157
This Booking.com deal was found by Cheapflights users on 9/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/238:38 pmMCI - STL
1 stop12h 29mFrontier
Fri 10/247:52 pmSTL - MCI
1 stop22h 03mFrontier
Deal found 9/11$166
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/33:01 pmMCI - STL
1 stop18h 05mFrontier
Sun 10/57:55 pmSTL - MCI
1 stop17h 53mFrontier
Deal found 9/9$167
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/157:02 pmMCI - STL
1 stop14h 05mMultiple Airlines
Mon 10/209:59 pmSTL - MCI
1 stop16h 01mMultiple Airlines
Deal found 9/10$168
This Southwest deal was found by Cheapflights users on 9/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2110:40 amMCI - ORD
2 stops10h 50mSouthwest
Wed 10/224:20 pmORD - MCI
1 stop5h 40mSouthwest
Deal found 9/11$171
This Priceline deal was found by Cheapflights users on 9/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3011:29 amMCI - MDW
1 stop7h 10mFrontier
Fri 10/3112:30 pmMDW - MCI
1 stop7h 03mFrontier
Deal found 9/11$173
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 10/17:12 amMCI - ORD
Nonstop1h 39mAmerican Airlines
Mon 10/67:10 pmORD - MCI
Nonstop1h 42mAmerican Airlines
Deal found 9/10$174
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1311:12 amMCI - MDW
1 stop10h 51mFrontier
Sun 11/166:06 pmMDW - MCI
2 stops16h 11mFrontier
Deal found 9/10$174
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Sat 10/116:00 amMCI - ORD
Nonstop1h 43mAmerican Airlines
Thu 10/167:10 pmORD - MCI
Nonstop1h 42mAmerican Airlines
Deal found 9/10$175
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/611:12 amMCI - MDW
1 stop10h 51mFrontier
Sat 11/82:05 pmMDW - MCI
2 stops20h 12mFrontier
Deal found 9/10$175
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 10/17:12 amMCI - ORD
Nonstop1h 39mAmerican Airlines
Sat 10/41:20 pmORD - MCI
1 stop5h 14mAmerican Airlines
Deal found 9/10$176

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kansas City to Illinois 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 11, 2025.
Use the filters below to find and compare flights from Kansas City to Illinois that are best for you.

Fly from

Kansas City

Fly to

Illinois

Route

Depart

Return

Price

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Tue 10/14

6:15 am-7:15 am

Nonstop1h 00m

Lambert-St Louis

Mon 10/20

10:15 pm-11:20 pm

Nonstop1h 05m

$157

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Wed 10/15

10:40 am-11:45 am

Nonstop1h 05m

Lambert-St Louis

Mon 10/20

10:15 pm-11:20 pm

Nonstop1h 05m

$157

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Wed 10/8

10:40 am-11:45 am

Nonstop1h 05m

Lambert-St Louis

Wed 10/15

2:45 pm-3:50 pm

Nonstop1h 05m

$157

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Wed 10/1

11:30 am-12:35 pm

Nonstop1h 05m

Lambert-St Louis

Sat 10/4

8:25 am-9:30 am

Nonstop1h 05m

$157

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Wed 10/8

10:40 am-11:45 am

Nonstop1h 05m

Lambert-St Louis

Wed 10/22

2:45 pm-3:50 pm

Nonstop1h 05m

$157

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Wed 10/1

4:45 pm-5:50 pm

Nonstop1h 05m

Lambert-St Louis

Wed 10/8

10:20 am-11:25 am

Nonstop1h 05m

$157

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Fri 10/3

3:01 pm-9:06 am

1 stop18h 05m

Lambert-St Louis

Sun 10/5

7:55 pm-1:48 pm

1 stop17h 53m

$167

Kansas CityChicago

MCI - ORD

MCIORD

Kansas City

Sat 10/4

4:39 pm-6:26 pm

Nonstop1h 47m

Chicago O'Hare Intl

Sun 10/5

7:25 am-9:09 am

Nonstop1h 44m

$177

Kansas CityChicago

MCI - ORD

MCIORD

Kansas City

Wed 12/3

2:13 pm-8:31 pm

1 stop6h 18m

Chicago O'Hare Intl

Mon 12/8

5:03 pm-9:12 pm

1 stop4h 09m

$177

Kansas CityChicago

MCI - MDW

MCIMDW

Kansas City

Wed 10/1

6:37 am-12:28 pm

1 stop5h 51m

Chicago Midway

Sat 10/4

6:15 pm-10:07 pm

1 stop3h 52m

$177

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 60 results
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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.
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, August is the cheapest month in which you can book a flight from Kansas City to Illinois (average of $245). Flying from Kansas City to Illinois 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.

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 September 11, 2025.

When flying from Kansas City to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Kansas City to Illinois

Explore weekly flight availability from Kansas City to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 11, 2025.

The most flights from MCI to USIL are scheduled on a Thursday (53 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (37 on average).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated September 11, 2025.
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
8.0
Very good
4,248 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,177 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.

  • 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. The time it takes to get you to your destination can typically vary by up to 5h 18m. Kansas City and Illinois are separated by a distance of 236 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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: Republic Airways (91%), Turkish Airlines (87%), ANA (85%).

  • What are the cheapest flights from Kansas City to Illinois?

    The cheapest flight price from Kansas City to Illinois is $119. On average you can expect to pay $1,036. The most popular route, (Kansas City - Chicago O'Hare Intl), can usually be booked for $101.

  • 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, August is the cheapest month in which you can book a flight from Kansas City to Illinois (average of $245). Flying from Kansas City to Illinois 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

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Alternative routes for Kansas City to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Kansas City to Illinois

Discover the top 3 airlines that operate flights from Kansas City to Illinois. 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 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$179Average$314FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$196Average$335FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$208Average$334FlexibilityNo cancel feeOn-time63%

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