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Cheap flights from Ohio to Illinois from $69

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ohio to Illinois departing on 8/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ohio to Illinois

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
2:56 pm - 8:57 am
DTW
-
STL
19h 01m
1 stop
Frontier Logo
4:57 pm - 12:40 am
STL
-
DTW
6h 43m
1 stop
$143Frontier
Thu, Aug 6 - Mon, Aug 10
Frontier Logo
6:10 am - 5:37 pm
DTW
-
STL
12h 27m
1 stop
Frontier Logo
6:34 pm - 12:40 am
STL
-
DTW
29h 06m
1 stop
$145Frontier
Thu, Jul 30 - Sun, Aug 2
Southwest Logo
12:50 pm - 4:05 pm
CLE
-
MDW
4h 15m
1 stop
Southwest Logo
8:05 am - 10:25 am
MDW
-
CLE
1h 20mnonstop
$166Southwest
Sat, Aug 8 - Mon, Aug 10
Southwest Logo
12:50 pm - 1:05 pm
CLE
-
MDW
1h 15mnonstop
Southwest Logo
2:35 pm - 9:55 pm
MDW
-
CLE
6h 20m
2 stops
$171Southwest
Tue, Aug 11 - Thu, Aug 13
Delta Logo
8:28 am - 12:39 pm
CLE
-
MDW
5h 11m
1 stop
Delta Logo
9:29 am - 1:40 pm
MDW
-
CLE
3h 11m
1 stop
$177Delta
Sat, Sep 26 - Mon, Sep 28
Delta Logo
8:18 am - 1:08 pm
CLE
-
ORD
5h 50m
1 stop
Delta Logo
8:48 am - 1:40 pm
ORD
-
CLE
3h 52m
1 stop
$177Delta
Wed, Aug 19 - Thu, Aug 27
American Airlines Logo
8:44 pm - 9:30 pm
CLE
-
ORD
1h 46mnonstop
American Airlines Logo
10:10 am - 12:41 pm
ORD
-
CLE
1h 31mnonstop
$179American Airlines
Thu, Aug 13 - Thu, Aug 20
United Airlines Logo
8:45 am - 9:34 am
PIT
-
ORD
1h 49mnonstop
United Airlines Logo
10:36 am - 1:15 pm
ORD
-
PIT
1h 39mnonstop
$181United Airlines
Thu, Aug 20 - Sat, Aug 22
American Airlines Logo
10:17 am - 11:10 am
PIT
-
ORD
1h 53mnonstop
American Airlines Logo
9:15 pm - 11:59 pm
ORD
-
PIT
1h 44mnonstop
$182American Airlines
Thu, Aug 6 - Mon, Aug 10
United Airlines Logo
5:20 am - 5:57 am
CLE
-
ORD
1h 37mnonstop
United Airlines Logo
9:30 pm - 11:59 pm
ORD
-
CLE
1h 29mnonstop
$187United Airlines
Tue, Oct 13 - Wed, Oct 14

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American Airlines flights from Ohio to Illinois

Our best American Airlines deals on Ohio to Illinois flight tickets
American Airlines
Aug 13
CLE8:44 pmCleveland Hopkins Intl
1h 46m
ORD9:30 pmChicago O'Hare Intl
Aug 20
ORD10:10 amChicago O'Hare Intl
1h 31m
CLE12:41 pmCleveland Hopkins Intl
$179
American Airlines
Aug 6
PIT10:17 amPittsburgh
1h 53m
ORD11:10 amChicago O'Hare Intl
Aug 10
ORD9:15 pmChicago O'Hare Intl
1h 44m
PIT11:59 pmPittsburgh
$182
American Airlines
Aug 31
CLE2:51 pmCleveland Hopkins Intl
1h 48m
ORD3:39 pmChicago O'Hare Intl
Sep 10
ORD11:51 amChicago O'Hare Intl
1h 34m
CLE2:25 pmCleveland Hopkins Intl
$195

Delta flights from Ohio to Illinois

Our best Delta deals on Ohio to Illinois flight tickets
Delta
Aug 19
CLE8:18 amCleveland Hopkins Intl
5h 50m
1 stop
ORD1:08 pmChicago O'Hare Intl
Aug 27
ORD8:48 amChicago O'Hare Intl
3h 52m
1 stop
CLE1:40 pmCleveland Hopkins Intl
$177
Delta
Aug 8
PIT5:56 pmPittsburgh
3h 34m
1 stop
ORD8:30 pmChicago O'Hare Intl
Aug 10
ORD7:30 pmChicago O'Hare Intl
3h 34m
1 stop
PIT12:04 amPittsburgh
$179
Delta
Aug 8
PIT5:56 pmPittsburgh
3h 34m
1 stop
ORD8:30 pmChicago O'Hare Intl
Aug 10
ORD7:30 pmChicago O'Hare Intl
3h 34m
1 stop
PIT12:04 amPittsburgh
$180

momondo Fare Finder

 
Customize your flight search to find flights from Ohio 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, momondo users made 832,500 searches. Data last updated July 3, 2026.
Use the filters below to find and compare flights from Ohio to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Thu 8/6

2:56 pm-8:57 am

1 stop19h 01m

Lambert-St Louis

Mon 8/10

4:57 pm-12:40 am

1 stop6h 43m

$143

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Thu 7/30

6:10 am-5:37 pm

1 stop12h 27m

Lambert-St Louis

Sun 8/2

6:34 pm-12:40 am

1 stop29h 06m

$145

ClevelandChicago

CLE - MDW

CLEMDW

Cleveland Hopkins Intl

Sat 8/8

12:50 pm-4:05 pm

1 stop4h 15m

Chicago Midway

Mon 8/10

8:05 am-10:25 am

Nonstop1h 20m

$166

ClevelandChicago

CLE - MDW

CLEMDW

Cleveland Hopkins Intl

Tue 8/11

12:50 pm-1:05 pm

Nonstop1h 15m

Chicago Midway

Thu 8/13

2:35 pm-9:55 pm

2 stops6h 20m

$171

ClevelandChicago

CLE - MDW

CLEMDW

Cleveland Hopkins Intl

Sat 9/26

8:28 am-12:39 pm

1 stop5h 11m

Chicago Midway

Mon 9/28

9:29 am-1:40 pm

1 stop3h 11m

$177

ClevelandChicago

CLE - ORD

CLEORD

Cleveland Hopkins Intl

Wed 8/19

8:18 am-1:08 pm

1 stop5h 50m

Chicago O'Hare Intl

Thu 8/27

8:48 am-1:40 pm

1 stop3h 52m

$177

ClevelandChicago

CLE - ORD

CLEORD

Cleveland Hopkins Intl

Thu 8/13

8:44 pm-9:30 pm

Nonstop1h 46m

Chicago O'Hare Intl

Thu 8/20

10:10 am-12:41 pm

Nonstop1h 31m

$179

PittsburghChicago

PIT - ORD

PITORD

Pittsburgh

Thu 8/20

8:45 am-9:34 am

Nonstop1h 49m

Chicago O'Hare Intl

Sat 8/22

10:36 am-1:15 pm

Nonstop1h 39m

$181

PittsburghChicago

PIT - ORD

PITORD

Pittsburgh

Thu 8/6

10:17 am-11:10 am

Nonstop1h 53m

Chicago O'Hare Intl

Mon 8/10

9:15 pm-11:59 pm

Nonstop1h 44m

$182
Quickest round-trip

ClevelandChicago

CLE - ORD

CLEORD

Cleveland Hopkins Intl

Tue 10/13

5:20 am-5:57 am

Nonstop1h 37m

Chicago O'Hare Intl

Wed 10/14

9:30 pm-11:59 pm

Nonstop1h 29m

$187

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Illinois from

How to get the cheapest flight ticket from Ohio to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Ohio is in December. Flight prices, which tend to average around $55, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of December, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $284.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Ohio to Illinois is on a Friday when prices can be found for as low as $457. Flights from Ohio to Illinois on a Sunday will generally be more expensive and average around $636. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the morning. Flights from Ohio to Illinois during this time can be as low as $467. Flights at noon are often more expensive with an average ticket price of $769.

What is the cheapest Ohio to Illinois flight route?

Fly from Cincinnati Cinci./N. Kentucky to Chicago Midway for the best Ohio - Illinois flight prices

How far in advance should I book a flight from Ohio to Illinois?

You are more likely to see cheaper flights to Illinois from Ohio when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $313 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Ohio for as low as $121 on momondo.

What cabin class options are available on Ohio to Illinois flights?

There are 4 cabin classes available to choose from on Ohio to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Ohio to Illinois flights?

No. A direct flight is the cheapest option for a flight between Ohio to Illinois.

Cheap Ohio to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ohio to Illinois

Best Price Found

$189

Fastest flight time

1h 05m

Direct flights

Every day

Airports in Illinois

98 airports
The best one-way flight to Illinois from Ohio in the past 72 hours is $189. The best round-trip flight deal from Ohio to Illinois found on momondo in the last 72 hours is $292.
The fastest flight from Ohio to Illinois takes 1h 05m
Direct flights go from Ohio to Illinois every day.
There are 98 airports in Illinois. From Ohio there are direct flights to Chicago O'Hare Intl (ORD), Chicago Midway (MDW).
Search flight deals

Frequently asked questions about flying from Ohio to Illinois

  • When did momondo last update prices for flights from Ohio to Illinois?

    Prices for flights from Ohio to Illinois are updated daily.

  • How many operators does momondo search for flights from Ohio to Illinois?

  • How old do you have to be to fly from Ohio to Illinois?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ohio to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The travel and health documents you'll need for your trip to Illinois may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Ohio to Illinois?

Best airlines flying from Ohio to Illinois

Compare and see reviews for airlines that fly from Ohio to Illinois with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $127Free CancellationRating
7.1
11,766 reviews
Search American Airlines flights
United AirlinesPriceFrom $131Free CancellationRating
7.4
9,931 reviews
Search United Airlines flights
SouthwestPriceFrom $137Free CancellationRating
7.9
4,252 reviews
Search Southwest flights
FrontierPriceFrom $143Free CancellationRating
5.6
2,847 reviews
Search Frontier flights

Why use momondo?

Why should I use momondo to find a flight deal from Ohio to Illinois?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ohio to Illinois. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ohio to Illinois with flexible booking policies on momondo?

Flights from Ohio to Illinois with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Ohio to Illinois?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Illinois from Ohio.

I’m not ready to book a flight from Ohio to Illinois right now. Can momondo alert me if prices change?

Price alerts on flights to Illinois from Ohio are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Find better results for your trip to Illinois

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