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$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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
COU — ORD
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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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 September 17, 2025.

Round-trip from

$179
(American Airlines)

Popular in

July

Cheapest in

September

Average price

$239

Good round-trip deal

$419 or less

Good one-way deal

$364 or less
From Columbia Regional to Illinois
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Highest demand for flights based on searches. 2% potential increase in price ($9 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Columbia Regional to Illinois.
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Price to beat on a one-way flight from Columbia Regional to Illinois.
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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 September 17, 2025.

This American Airlines deal was found by Cheapflights users on 9/15. 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.
Fri 10/247:49 pmCOU - ORD
Nonstop1h 30mAmerican Airlines
Sun 10/269:40 amORD - COU
Nonstop1h 27mAmerican Airlines
Deal found 9/15$179
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Fri 10/31:36 pmCOU - ORD
Nonstop1h 27mAmerican Airlines
Mon 10/67:50 pmORD - COU
Nonstop1h 41mAmerican Airlines
Deal found 9/15$184
This American Airlines deal was found by Cheapflights users on 9/16. 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.
Fri 10/35:16 pmCOU - ORD
Nonstop1h 30mAmerican Airlines
Sun 10/55:53 pmORD - COU
Nonstop1h 26mAmerican Airlines
Deal found 9/16$189
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 9/257:49 pmCOU - ORD
Nonstop1h 25mAmerican Airlines
Mon 9/295:53 pmORD - COU
Nonstop1h 26mAmerican Airlines
Deal found 9/15$214
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/258:00 amCOU - ORD
Nonstop1h 37mUnited Airlines
Mon 12/17:40 pmORD - COU
Nonstop1h 39mUnited Airlines
Deal found 9/14$221
This American Airlines deal was found by Cheapflights users on 9/17. 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.
Fri 10/1011:37 amCOU - ORD
Nonstop1h 28mAmerican Airlines
Sun 10/129:40 amORD - COU
Nonstop1h 27mAmerican Airlines
Deal found 9/17$249
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 10/145:25 pmCOU - ORD
1 stop6h 17mAmerican Airlines
Sat 10/184:17 pmORD - COU
1 stop6h 23mAmerican Airlines
Deal found 9/15$258
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/101:49 pmCOU - STL
1 stop18h 20mAmerican Airlines
Mon 10/137:16 amSTL - COU
1 stop27h 51mAmerican Airlines
Deal found 9/14$265
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/247:06 pmCOU - ORD
Nonstop1h 47mAmerican Airlines
Mon 12/112:07 pmORD - COU
Nonstop1h 28mAmerican Airlines
Deal found 9/14$279
This American Airlines deal was found by Cheapflights users on 9/17. 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.
Thu 10/26:24 amCOU - STL
1 stop38h 08mAmerican Airlines
Mon 10/68:05 pmSTL - COU
1 stop39h 02mAmerican Airlines
Deal found 9/17$554
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Sun 11/233:02 pmCOU - STL
1 stop24h 44mUnited Airlines
Sun 11/306:43 pmSTL - COU
1 stop26h 36mUnited Airlines
Deal found 9/16$625
This United Airlines deal was found by Cheapflights users on 9/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/29:01 amCOU - STL
2 stops9h 56mUnited Airlines
Mon 10/69:00 amSTL - COU
1 stop11h 25mUnited Airlines
Deal found 9/17$1,209

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 September 17, 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

Thu 11/27

8:00 am-9:37 am

Nonstop1h 37m

Chicago O'Hare Intl

Sat 12/6

4:04 pm-5:40 pm

Nonstop1h 36m

$179

ColumbiaChicago

COU - ORD

COUORD

Columbia Regional

Wed 10/8

11:37 am-1:05 pm

Nonstop1h 28m

Chicago O'Hare Intl

Wed 10/15

9:40 am-11:07 am

Nonstop1h 27m

$179

ColumbiaChicago

COU - ORD

COUORD

Columbia Regional

Mon 11/24

3:02 pm-4:39 pm

Nonstop1h 37m

Chicago O'Hare Intl

Mon 12/1

7:40 pm-9:19 pm

Nonstop1h 39m

$179

ColumbiaChicago

COU - ORD

COUORD

Columbia Regional

Thu 11/27

6:34 am-8:17 am

Nonstop1h 43m

Chicago O'Hare Intl

Sat 12/6

8:25 pm-10:00 pm

Nonstop1h 35m

$179

ColumbiaChicago

COU - ORD

COUORD

Columbia Regional

Wed 10/15

1:49 pm-3:17 pm

Nonstop1h 28m

Chicago O'Hare Intl

Wed 10/22

5:53 pm-7:19 pm

Nonstop1h 26m

$179

ColumbiaChicago

COU - ORD

COUORD

Columbia Regional

Wed 12/3

6:15 pm-7:52 pm

Nonstop1h 37m

Chicago O'Hare Intl

Wed 12/31

3:50 pm-5:25 pm

Nonstop1h 35m

$179

ColumbiaChicago

COU - ORD

COUORD

Columbia Regional

Fri 10/24

7:49 pm-9:19 pm

Nonstop1h 30m

Chicago O'Hare Intl

Tue 10/28

5:53 pm-7:19 pm

Nonstop1h 26m

$179

ColumbiaChicago

COU - ORD

COUORD

Columbia Regional

Thu 10/9

2:52 pm-4:25 pm

Nonstop1h 33m

Chicago O'Hare Intl

Sat 10/11

7:45 pm-9:27 pm

Nonstop1h 42m

$179

ColumbiaChicago

COU - ORD

COUORD

Columbia Regional

Fri 10/17

7:49 pm-9:19 pm

Nonstop1h 30m

Chicago O'Hare Intl

Sun 10/19

9:40 am-11:07 am

Nonstop1h 27m

$179

ColumbiaChicago

COU - ORD

COUORD

Columbia Regional

Fri 10/24

7:49 pm-9:19 pm

Nonstop1h 30m

Chicago O'Hare Intl

Sun 10/26

9:40 am-11:07 am

Nonstop1h 27m

$179

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 25 results
1
2
3

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 September 17, 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.

Weekly flight availability from Columbia, Missouri to Illinois

Explore weekly flight availability from Columbia 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 17, 2025.

The most flights from COU to USIL are scheduled on a Monday (5 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 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 17, 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
8,926 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

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
8,926 reviews
United Airlines
7.4
Good
8,926 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

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
8,926 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

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 and American Airlines can get you from Columbia, Missouri to Illinois in just under 1h 28m. 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 (74%), 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 $208. While the most popular route (Columbia Regional - Chicago O'Hare Intl) can be booked for $179 on average, our data indicates $470 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

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Top 2 airlines flying from Columbia to Illinois

Discover the top 2 airlines 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$179Average$328FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$229Average$353FlexibilityNo cancel feeOn-time71%

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