What is the cheapest airline that flies from Ohio to Illinois?

Delta, United Airlines, and Frontier are the most popular carriers operating from Ohio to Illinois

How many flights depart from Ohio to Illinois on average per week?

2,567 flights are operational weekly from Ohio to Illinois as of May 2026. The most popular departure day for this route is Thu, with 16% of flights per week taking off on this day.

How many flights depart from Ohio to Illinois on average per day?

366 flights are operational daily from Ohio to Illinois as of May 2026. The most popular departure time for this route is 2:00PM, with 40% of flights per day taking off in the afternoon.

What airlines fly to Illinois?

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Illinois from Ohio according to our data. United Airlines is the first choice among our users, with 58% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 4 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

How long is the flight from Ohio to Illinois?

The flight from Ohio to Illinois depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Dayton (a popular airport in Ohio) to Chicago O'Hare Intl Airport (the most popular airport in Illinois), then the flight time is 1h 22m on average. If you fly from Columbus (another popular airport in Ohio) to Chicago O'Hare Intl Airport, then the average flight time is 1h 23m.

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?

There are 6 operators available for flights from Ohio to Illinois as of May 2026.

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.

$59 Cheap Flights from Ohio to Illinois in 2026

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Find the cheapest flights from Ohio to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:59 pm - 8:55 am

DTW

STL

19h 56m

1 stop

5:06 pm - 12:44 am

STL

DTW

6h 38m

1 stop

$124Frontier

Tue, Jun 2 - Wed, Jun 10

1:59 pm - 8:55 am

DTW

STL

19h 56m

1 stop

5:27 pm - 12:39 am

STL

DTW

6h 12m

1 stop

$155Frontier

Tue, Jun 2 - Mon, Jun 8

6:30 am - 1:09 pm

CLE

MDW

7h 39m

2 stops

9:17 am - 1:46 pm

MDW

CLE

3h 29m

1 stop

$162Delta

Tue, Jun 23 - Tue, Jun 30

5:35 am - 10:13 am

CLE

ORD

5h 38m

1 stop

6:30 am - 1:46 pm

ORD

CLE

6h 16m

2 stops

$162Delta

Wed, Jun 10 - Tue, Jun 16

6:45 pm - 7:00 pm

CLE

MDW

1h 15mnonstop

7:50 am - 3:20 pm

MDW

CLE

6h 30m

1 stop

$164Southwest

Tue, Jun 2 - Thu, Jun 4

6:25 am - 1:45 pm

CLE

MDW

8h 20m

1 stop

1:40 pm - 3:50 pm

MDW

CLE

1h 10mnonstop

$170Southwest

Thu, Jun 4 - Wed, Jun 10

8:50 am - 9:22 am

DTW

ORD

1h 32mnonstop

4:00 pm - 6:38 pm

ORD

DTW

1h 38mnonstop

$171United Airlines

Thu, Jun 4 - Tue, Jun 9

6:14 pm - 7:14 pm

CLE

ORD

2h 00mnonstop

7:29 pm - 9:54 pm

ORD

CLE

1h 25mnonstop

$172American Airlines

Mon, Jun 8 - Wed, Jun 10

6:33 am - 7:18 am

DTW

ORD

1h 45mnonstop

3:06 pm - 5:41 pm

ORD

DTW

1h 35mnonstop

$174American Airlines

Sat, Jul 18 - Tue, Jul 21

7:32 am - 7:58 am

DTW

ORD

1h 26mnonstop

5:45 pm - 8:14 pm

ORD

DTW

1h 29mnonstop

$184United Airlines

Tue, Aug 11 - Tue, Aug 18

Delta flights from Ohio to Illinois

Our best Delta deals on Ohio to Illinois flight tickets

Delta

Jun 10

CLE5:35 amCleveland Hopkins Intl

5h 38m

1 stop

ORD10:13 amChicago O'Hare Intl

Jun 16

ORD6:30 amChicago O'Hare Intl

6h 16m

2 stops

CLE1:46 pmCleveland Hopkins Intl

$162

Delta

Jun 10

CLE6:00 amCleveland Hopkins Intl

8h 04m

2 stops

ORD1:04 pmChicago O'Hare Intl

Jun 16

ORD6:30 amChicago O'Hare Intl

6h 16m

2 stops

CLE1:46 pmCleveland Hopkins Intl

$167

Delta

Jun 8

CLE4:00 pmCleveland Hopkins Intl

5h 31m

1 stop

ORD8:31 pmChicago O'Hare Intl

Jun 9

ORD7:17 pmChicago O'Hare Intl

3h 42m

1 stop

CLE11:59 pmCleveland Hopkins Intl

$184

American Airlines flights from Ohio to Illinois

Our best American Airlines deals on Ohio to Illinois flight tickets

American Airlines

Jun 8

CLE6:14 pmCleveland Hopkins Intl

2h 00m

ORD7:14 pmChicago O'Hare Intl

Jun 10

ORD7:29 pmChicago O'Hare Intl

1h 25m

CLE9:54 pmCleveland Hopkins Intl

$172

American Airlines

Jul 18

DTW6:33 amDetroit Metropolitan Wayne County

1h 45m

ORD7:18 amChicago O'Hare Intl

Jul 21

ORD3:06 pmChicago O'Hare Intl

1h 35m

DTW5:41 pmDetroit Metropolitan Wayne County

$174

American Airlines

Jun 4

CVG9:00 pmCincinnati Cinci./N. Kentucky

1h 41m

ORD9:41 pmChicago O'Hare Intl

Jun 6

ORD12:29 pmChicago O'Hare Intl

1h 26m

CVG2:55 pmCincinnati Cinci./N. Kentucky

$191

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Tue 6/2

1:59 pm-8:55 am

1 stop19h 56m

Lambert-St Louis

Wed 6/10

5:06 pm-12:44 am

1 stop6h 38m

$124

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Tue 6/2

1:59 pm-8:55 am

1 stop19h 56m

Lambert-St Louis

Mon 6/8

5:27 pm-12:39 am

1 stop6h 12m

$155

ClevelandChicago

CLE - MDW

CLEMDW

Cleveland Hopkins Intl

Tue 6/23

6:30 am-1:09 pm

2 stops7h 39m

Chicago Midway

Tue 6/30

9:17 am-1:46 pm

1 stop3h 29m

$162

ClevelandChicago

CLE - ORD

CLEORD

Cleveland Hopkins Intl

Wed 6/10

5:35 am-10:13 am

1 stop5h 38m

Chicago O'Hare Intl

Tue 6/16

6:30 am-1:46 pm

2 stops6h 16m

$162

ClevelandChicago

CLE - MDW

CLEMDW

Cleveland Hopkins Intl

Tue 6/2

6:45 pm-7:00 pm

Nonstop1h 15m

Chicago Midway

Thu 6/4

7:50 am-3:20 pm

1 stop6h 30m

$164

ClevelandChicago

CLE - MDW

CLEMDW

Cleveland Hopkins Intl

Thu 6/4

6:25 am-1:45 pm

1 stop8h 20m

Chicago Midway

Wed 6/10

1:40 pm-3:50 pm

Nonstop1h 10m

$170

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Thu 6/4

8:50 am-9:22 am

Nonstop1h 32m

Chicago O'Hare Intl

Tue 6/9

4:00 pm-6:38 pm

Nonstop1h 38m

$171

ClevelandChicago

CLE - ORD

CLEORD

Cleveland Hopkins Intl

Mon 6/8

6:14 pm-7:14 pm

Nonstop2h 00m

Chicago O'Hare Intl

Wed 6/10

7:29 pm-9:54 pm

Nonstop1h 25m

$172

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Sat 7/18

6:33 am-7:18 am

Nonstop1h 45m

Chicago O'Hare Intl

Tue 7/21

3:06 pm-5:41 pm

Nonstop1h 35m

$174

Quickest round-trip

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Tue 8/11

7:32 am-7:58 am

Nonstop1h 26m

Chicago O'Hare Intl

Tue 8/18

5:45 pm-8:14 pm

Nonstop1h 29m

$184

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

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 $287.

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 $447. Flights from Ohio to Illinois on a Sunday will generally be more expensive and average around $624. 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 $457. Flights at noon are often more expensive with an average ticket price of $766.

What is the cheapest Ohio to Illinois flight route?

Fly from Cleveland Hopkins Intl to Chicago O'Hare Intl 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 $304 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 $164 on momondo.

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	$195
Fastest flight time	1h 10m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from Ohio in the past 72 hours is $195. The best round-trip flight deal from Ohio to Illinois found on momondo in the last 72 hours is $281.

The fastest flight from Ohio to Illinois takes 1h 10m

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?
There are 6 operators available for flights from Ohio to Illinois as of May 2026.
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?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Ohio to Illinois is Embraer 175 (Enhanced Winglets) (10.18% of total bookings). The next most popular plane models are Boeing 737 MAX 8 (9.96%), Boeing 737-800 (9.55%), and Airbus A319 (9.53%).

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 Airlines	PriceFrom $127	Free Cancellation	Rating 7.1 11,669 reviews	Search American Airlines flights
United Airlines	PriceFrom $131	Free Cancellation	Rating 7.4 9,712 reviews	Search United Airlines flights
Southwest	PriceFrom $137	Free Cancellation	Rating 8.0 4,298 reviews	Search Southwest flights
Frontier	PriceFrom $143	Free Cancellation	Rating 5.6 2,952 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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Popular cities in Illinois

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Flights to Dallasfrom $88

Cheap flights from Ohio to Illinois from $59

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 7/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from Ohio to Illinois

Our best Delta deals on Ohio to Illinois flight tickets

American Airlines flights from Ohio to Illinois

Our best American Airlines deals on Ohio to Illinois flight tickets

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See travel insights to Illinois from

How to get the cheapest flight ticket from Ohio to Illinois

What is the cheapest month to fly to Illinois?

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

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

What is the cheapest Ohio to Illinois flight route?

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

Can stopping save me money on Ohio to Illinois flights?

What is the cheapest airline that flies from Ohio to Illinois?

What airlines fly to Illinois?

How many flights depart from Ohio to Illinois on average per day?

How many flights depart from Ohio to Illinois on average per week?

How long is the flight from 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

Fastest flight time

Direct flights

Airports in Illinois

Frequently asked questions about flying 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

Why use momondo?

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Illinois

Popular cities in Illinois

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According to popular flight searches on momondo this year

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