HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$179+ Cheap flights from Columbia, MO (COU) to Illinois

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/26. Fares are subject to change and may not be available on all flights or dates of travel.
COU — ORD
ago. 23 — ago. 301
sáb. 8/23
sáb. 8/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Columbia to Illinois with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Columbia to Illinois

Keep the following information in mind while searching for Columbia to Illinois flight deals. Data was last updated agosto 18, 2025.

Round-trip from

$179
(United Airlines)

Popular in

September

Cheapest in

October

Average price

$299

Good round-trip deal

$430 or less

Good one-way deal

$352 or less
From Columbia Regional to Illinois
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals
Price to beat on a round-trip flight from Columbia Regional to Illinois.
Search Deals
Price to beat on a one-way flight from Columbia Regional to Illinois.
Search Deals

Find flight deals from Columbia to Illinois

Cheapest flights from Columbia to Illinois
Explore the most affordable flight options available from Columbia to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 18, 2025.

This United Airlines deal was found by Cheapflights users on 8/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/262:52 pmCOU - ORD
Nonstop1h 33mUnited Airlines
dom. 9/2812:45 pmORD - COU
Nonstop1h 32mUnited Airlines
Deal found 8/16$179
This United Airlines deal was found by Cheapflights users on 8/18. 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.
vie. 10/108:00 amCOU - ORD
Nonstop1h 35mUnited Airlines
dom. 10/1212:45 pmORD - COU
Nonstop1h 32mUnited Airlines
Deal found 8/18$239
This United Airlines deal was found by Cheapflights users on 8/18. 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.
jue. 9/252:52 pmCOU - ORD
Nonstop1h 33mUnited Airlines
dom. 9/287:45 pmORD - COU
Nonstop1h 42mUnited Airlines
Deal found 8/18$240
This American Airlines deal was found by Cheapflights users on 8/18. 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.
sáb. 9/201:36 pmCOU - ORD
Nonstop1h 27mAmerican Airlines
mar. 9/236:45 pmORD - COU
Nonstop1h 36mAmerican Airlines
Deal found 8/18$259
This American Airlines deal was found by Cheapflights users on 8/16. 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.
sáb. 8/305:09 pmCOU - ORD
1 stop6h 34mAmerican Airlines
dom. 8/315:26 pmORD - COU
Nonstop1h 20mAmerican Airlines
Deal found 8/16$269
This American Airlines deal was found by Cheapflights users on 8/17. 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.
mié. 9/245:14 pmCOU - ORD
Nonstop1h 30mAmerican Airlines
dom. 9/288:21 pmORD - COU
Nonstop1h 33mAmerican Airlines
Deal found 8/17$279
This American Airlines deal was found by Cheapflights users on 8/16. 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.
vie. 9/195:16 pmCOU - ORD
Nonstop1h 30mAmerican Airlines
dom. 9/218:21 pmORD - COU
Nonstop1h 33mAmerican Airlines
Deal found 8/16$299
This American Airlines deal was found by Cheapflights users on 8/18. 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.
jue. 9/254:23 pmCOU - ORD
1 stop5h 18mAmerican Airlines
dom. 9/285:53 pmORD - COU
Nonstop1h 26mAmerican Airlines
Deal found 8/18$310
This American Airlines deal was found by Cheapflights users on 8/18. 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.
mar. 9/26:15 amCOU - STL
1 stop14h 10mAmerican Airlines
sáb. 9/69:56 amSTL - COU
1 stop8h 48mAmerican Airlines
Deal found 8/18$729

Cheapflights Fare Finder

 
Customize your flight search to find flights from Columbia 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 agosto 18, 2025.
Use the filters below to find and compare flights from Columbia to Illinois that are best for you.

Fly from

Columbia

Fly to

Illinois

Route

Depart

Return

Price

ColumbiaChicago

COU - ORD

COUORD

Columbia Regional

vie. 9/26

2:52 pm-4:25 pm

Nonstop1h 33m

Chicago O'Hare Intl

dom. 9/28

12:45 pm-2:17 pm

Nonstop1h 32m

$179

ColumbiaChicago

COU - ORD

COUORD

Columbia Regional

lun. 11/24

8:00 am-9:37 am

Nonstop1h 37m

Chicago O'Hare Intl

vie. 11/28

7:40 pm-9:19 pm

Nonstop1h 39m

$179

ColumbiaChicago

COU - ORD

COUORD

Columbia Regional

jue. 10/9

2:52 pm-4:25 pm

Nonstop1h 33m

Chicago O'Hare Intl

lun. 10/13

7:45 pm-9:27 pm

Nonstop1h 42m

$179

ColumbiaChicago

COU - ORD

COUORD

Columbia Regional

sáb. 11/1

8:00 am-9:37 am

Nonstop1h 37m

Chicago O'Hare Intl

jue. 11/6

7:40 pm-9:19 pm

Nonstop1h 39m

$239

ColumbiaChicago

COU - ORD

COUORD

Columbia Regional

jue. 11/20

3:02 pm-4:39 pm

Nonstop1h 37m

Chicago O'Hare Intl

dom. 11/23

7:40 pm-9:19 pm

Nonstop1h 39m

$239

ColumbiaChicago

COU - ORD

COUORD

Columbia Regional

vie. 10/10

8:00 am-9:35 am

Nonstop1h 35m

Chicago O'Hare Intl

dom. 10/12

12:45 pm-2:17 pm

Nonstop1h 32m

$239

ColumbiaChicago

COU - ORD

COUORD

Columbia Regional

vie. 12/19

8:05 am-9:51 am

Nonstop1h 46m

Chicago O'Hare Intl

dom. 1/18

7:35 pm-9:10 pm

Nonstop1h 35m

$239

ColumbiaChicago

COU - ORD

COUORD

Columbia Regional

sáb. 10/25

2:52 pm-4:25 pm

Nonstop1h 33m

Chicago O'Hare Intl

mar. 10/28

7:40 pm-9:19 pm

Nonstop1h 39m

$239

ColumbiaChicago

COU - ORD

COUORD

Columbia Regional

vie. 10/10

2:52 pm-4:25 pm

Nonstop1h 33m

Chicago O'Hare Intl

lun. 10/13

7:45 pm-9:27 pm

Nonstop1h 42m

$239

ColumbiaChicago

COU - ORD

COUORD

Columbia Regional

jue. 9/25

2:52 pm-4:25 pm

Nonstop1h 33m

Chicago O'Hare Intl

dom. 9/28

7:45 pm-9:27 pm

Nonstop1h 42m

$240

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 19 results
1
2

Best time to book a flight from Columbia to Illinois

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

What is the cheapest month to book a flight from Columbia, Missouri to Illinois?

Currently, August is the cheapest month in which you can book a flight from Columbia, Missouri to Illinois (average of $245). Flying from Columbia, Missouri 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 COU to IL?

Find hourly flight availability from Columbia 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 agosto 18, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Columbia, Missouri to Illinois as you normally would.

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 agosto 18, 2025.
Read reviews from past customers who have flown United Airlines and American Airlines from Columbia to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,925 reviews

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,925 reviews
United Airlines
7.4
Good
8,925 reviews

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,925 reviews

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Columbia 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 Columbia to Illinois?

    Most people fly from Columbia Regional (COU) if they book a flight from Columbia to Illinois. Columbia Regional is conveniently located just 11.1 mi from Columbia’s city center.

  • How long is the flight from Columbia, Missouri to Illinois?

    United Airlines can get you from Columbia, Missouri to Illinois in just under 1h 33m. Your travel time will be generally consistent. Airlines will cover a distance of 315 mi. Most flights are nonstop.

  • What are the most reliable airlines from Columbia, Missouri to Illinois?

    Consider Qatar Airways (75%), American Airlines (68%) or Envoy Air (68%) when booking your flight. These represent the most reliable airlines when flying from Columbia, Missouri to Illinois.

  • What are the cheapest flights from Columbia, Missouri to Illinois?

    Looking at all options, your cheapest flight can be booked for $190. While the most popular route (Columbia Regional - Chicago O'Hare Intl) can be booked for $179 on average our data indicates $445 when flying from Columbia, Missouri to Illinois.

  • Can I find deals for flights from Columbia to Illinois that include hotel bookings?

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

  • How can I find direct flights from Columbia to Illinois?

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

  • Can I find deals for business class flights from Columbia to Illinois?

    Yes. Cheapflights offers flight deals from Columbia 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 Columbia, Missouri to Illinois?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Columbia to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
St. Louis to Las Vegas flights
St. Louis to Seattle flights
Kansas City to Las Vegas flights
St. Louis to Reagan-National flights
Kansas City to Denver flights
St. Louis to Miami flights
St. Louis to LaGuardia flights
St. Louis to Orlando flights
Kansas City to Boston flights
Kansas City to LaGuardia flights
St. Louis to Newark flights
St. Louis to John F Kennedy Intl flights
Kansas City to John F Kennedy Intl flights
Kansas City to Newark flights
St. Louis to Atlanta flights
Kansas City to Orlando flights
St. Louis to Denver flights
St. Louis to Boston flights
Kansas City to O'Hare Intl flights
Kansas City to Seattle flights
St. Louis to Los Angeles flights
St. Louis to Dallas/Fort Worth flights
Kansas City to Los Angeles flights
Kansas City to Atlanta flights
St. Louis to Dulles Intl flights
Kansas City to Hobby flights
St. Louis to Sky Harbor Intl flights
Kansas City to San Diego flights
Kansas City to Miami flights
Kansas City to Sky Harbor Intl flights
St. Louis to Hobby flights
Kansas City to Dulles Intl flights
St. Louis to Salt Lake City flights
Kansas City to Minneapolis flights
Kansas City to George Bush Intcntl flights
St. Louis to Portland flights
St. Louis to Fort Lauderdale flights
Kansas City to Dallas/Fort Worth flights
St. Louis to O'Hare Intl flights
St. Louis to Philadelphia flights
Springfield to Valparaiso flights
Kansas City to San Francisco flights
St. Louis to San Francisco flights
St. Louis to George Bush Intcntl flights
Springfield to O'Hare Intl flights
St. Louis to San Diego flights
St. Louis to Minneapolis flights
St. Louis to Baltimore flights
St. Louis to Honolulu flights
Kansas City to Honolulu flights

Top airline flying from Columbia to Illinois

Discover the top airline that operate flights from Columbia 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 agosto 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$233Average$365FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.