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$39+ 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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — ORD
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
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 August 14, 2025.

Round-trip from

$77
(Southwest)

One-way from

$39
(Southwest)

Popular in

March

Cheapest in

September

Average price

$293
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. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 14, 2025.

This Southwest deal was found by Cheapflights users on 8/13. 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 9/106:15 amMCI - STL
Nonstop1h 05mSouthwest
Wed 9/108:45 pmSTL - MCI
Nonstop1h 05mSouthwest
Deal found 8/13$77
This Southwest deal was found by Cheapflights users on 8/13. 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 9/911:30 amMCI - STL
Nonstop1h 05mSouthwest
Tue 9/164:35 pmSTL - MCI
1 stop4h 05mSouthwest
Deal found 8/13$87
This Southwest deal was found by Cheapflights users on 8/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/411:15 amMCI - STL
1 stop6h 10mSouthwest
Sun 9/75:35 amSTL - MCI
1 stop4h 45mSouthwest
Deal found 8/12$134
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/911:37 amMCI - STL
1 stop23h 00mFrontier
Fri 10/107:52 pmSTL - MCI
1 stop22h 03mFrontier
Deal found 8/14$160
This Southwest deal was found by Cheapflights users on 8/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1012:15 pmMCI - ORD
2 stops10h 50mSouthwest
Tue 9/163:10 pmORD - MCI
2 stops6h 40mSouthwest
Deal found 8/14$185
This Southwest deal was found by Cheapflights users on 8/13. 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 9/247:00 amMCI - MDW
Nonstop1h 25mSouthwest
Wed 9/242:10 pmMDW - MCI
Nonstop1h 25mSouthwest
Deal found 8/13$185
This Southwest deal was found by Cheapflights users on 8/13. 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.
Sat 10/115:55 pmMCI - ORD
1 stop5h 10mSouthwest
Tue 10/141:30 pmORD - MCI
1 stop6h 30mSouthwest
Deal found 8/13$186
This Southwest deal was found by Cheapflights users on 8/13. 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.
Sat 10/113:25 pmMCI - MDW
1 stop4h 55mSouthwest
Tue 10/145:50 amMDW - MCI
1 stop6h 00mSouthwest
Deal found 8/13$186
This Delta deal was found by Cheapflights users on 8/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2012:13 pmMCI - ORD
1 stop4h 48mDelta
Tue 9/239:10 amORD - MCI
1 stop4h 05mDelta
Deal found 8/14$187
This Southwest deal was found by Cheapflights users on 8/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/44:10 pmMCI - MDW
Nonstop1h 25mSouthwest
Mon 9/85:40 pmMDW - MCI
1 stop6h 25mSouthwest
Deal found 8/14$187
This United Airlines deal was found by Cheapflights users on 8/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/43:23 pmMCI - ORD
Nonstop1h 42mUnited Airlines
Fri 9/52:15 pmORD - MCI
Nonstop1h 41mUnited Airlines
Deal found 8/12$188
This Southwest deal was found by Cheapflights users on 8/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/58:25 pmMCI - MDW
Nonstop1h 20mSouthwest
Mon 9/88:40 pmMDW - MCI
Nonstop1h 25mSouthwest
Deal found 8/14$188

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 August 14, 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 9/23

4:45 pm-5:50 pm

Nonstop1h 05m

Lambert-St Louis

Mon 9/29

2:50 pm-3:55 pm

Nonstop1h 05m

$77

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Wed 9/10

6:15 am-7:20 am

Nonstop1h 05m

Lambert-St Louis

Wed 9/10

8:45 pm-9:50 pm

Nonstop1h 05m

$77

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Tue 9/9

6:15 am-7:20 am

Nonstop1h 05m

Lambert-St Louis

Tue 9/16

1:35 pm-7:40 pm

1 stop6h 05m

$87

Kansas CityChicago

MCI - ORD

MCIORD

Kansas City

Wed 9/10

12:15 pm-11:05 pm

2 stops10h 50m

Chicago O'Hare Intl

Tue 9/16

3:10 pm-9:50 pm

2 stops6h 40m

$185

Kansas CityChicago

MCI - MDW

MCIMDW

Kansas City

Wed 9/24

7:00 am-8:25 am

Nonstop1h 25m

Chicago Midway

Wed 9/24

2:10 pm-3:35 pm

Nonstop1h 25m

$185

Kansas CityChicago

MCI - ORD

MCIORD

Kansas City

Sun 11/2

11:12 am-12:11 am

1 stop12h 59m

Chicago O'Hare Intl

Fri 11/7

6:00 am-7:33 pm

1 stop13h 33m

$186

Kansas CityChicago

MCI - ORD

MCIORD

Kansas City

Tue 9/9

11:25 am-4:45 pm

1 stop5h 20m

Chicago O'Hare Intl

Thu 9/11

5:45 pm-10:45 pm

1 stop5h 00m

$186

Kansas CityChicago

MCI - ORD

MCIORD

Kansas City

Tue 9/23

4:55 pm-9:30 pm

1 stop4h 35m

Chicago O'Hare Intl

Thu 9/25

4:20 pm-11:30 pm

1 stop7h 10m

$186

Kansas CityChicago

MCI - ORD

MCIORD

Kansas City

Mon 9/8

7:25 am-3:20 pm

1 stop7h 55m

Chicago O'Hare Intl

Wed 9/10

7:30 am-2:55 pm

1 stop7h 25m

$186

Kansas CityChicago

MCI - ORD

MCIORD

Kansas City

Wed 10/22

4:30 pm-11:05 pm

1 stop6h 35m

Chicago O'Hare Intl

Sat 11/1

1:30 pm-6:55 pm

1 stop5h 25m

$186

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 54 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 August 14, 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 August 14, 2025.

The most flights from MCI to USIL are scheduled on a Thursday (58 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (19 on average).

How much does it cost to fly round-trip from Kansas City to Illinois?

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 August 14, 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
4,244 reviews

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,244 reviews
Southwest
8.0
Very good
4,244 reviews

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,916 reviews
Southwest
8.0
Very good
4,244 reviews

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,244 reviews

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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.

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

    $39 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on United Airlines and American Airlines, with prices starting from $100 and $101, 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: Republic Airways (92%), Turkish Airlines (89%), Copa Airlines (81%).

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

    The cheapest flight price from Kansas City to Illinois is $118. On average you can expect to pay $1,068. The most popular route, (Kansas City - Chicago O'Hare Intl), can usually be booked for $166.

  • 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.

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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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$163Average$313FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$187Average$334FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$206Average$326FlexibilityNo cancel feeOn-time63%

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