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

American Airlines, Southwest, and United Airlines are the most popular carriers operating from Ohio to Illinois

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 48% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 6 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

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

233 flights are operational daily from Ohio to Illinois as of July 2025. The most popular departure time for this route is 2:00PM, with 44% of flights per day taking off in the afternoon.

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 24m on average. If you fly from Cincinnati (another popular airport in Ohio) to Chicago O'Hare Intl Airport, then the average flight time is 1h 27m.

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

1,635 flights are operational weekly from Ohio to Illinois as of July 2025. The most popular departure day for this route is Thu, with 23% of flights per week taking off on this day.

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 July 2025.

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.

$45 Cheap Flights from Ohio to Illinois in 2025

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Find the cheapest flights from Ohio to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

4:35 pm - 5:00 pmPIT-MDW

1h 25mnonstop

10:15 am - 12:45 pmMDW-PIT

1h 30mnonstop

$91Southwest

Find Deal

Sat, Nov 1 - Tue, Nov 4

10:26 am - 11:10 amPIT-ORD

1h 44mnonstop

1:59 pm - 4:34 pmORD-PIT

1h 35mnonstop

$91American Airlines

Find Deal

Sat, Oct 4 - Sat, Oct 11

8:23 am - 9:17 amPIT-ORD

1h 54mnonstop

1:54 pm - 4:33 pmORD-PIT

1h 39mnonstop

$94American Airlines

Find Deal

Sat, Aug 23 - Mon, Aug 25

3:45 pm - 4:10 pmPIT-MDW

1h 25mnonstop

5:25 pm - 7:45 pmMDW-PIT

1h 20mnonstop

$94Southwest

Find Deal

Sat, Aug 23 - Mon, Aug 25

7:00 am - 1:09 pmDTW-ORD

7h 09m1 stop

11:13 am - 6:55 pmORD-DTW

6h 42m1 stop

$146Spirit Airlines

Find Deal

Tue, Sep 16 - Tue, Sep 23

8:00 am - 3:55 pmPIT-ORD

8h 55m1 stop

10:15 am - 7:50 pmORD-PIT

8h 35m1 stop

$147Spirit Airlines

Find Deal

Thu, Jan 22 - Mon, Jan 26

2:10 pm - 2:54 pmPIT-ORD

1h 44mnonstop

7:24 am - 10:01 amORD-PIT

1h 37mnonstop

$151United Airlines

Find Deal

Tue, Aug 26 - Tue, Sep 2

7:05 am - 7:48 amPIT-ORD

1h 43mnonstop

3:35 pm - 6:16 pmORD-PIT

1h 41mnonstop

$154United Airlines

Find Deal

Thu, Sep 4 - Sat, Sep 6

3:42 pm - 11:20 pmDTW-MDW

8h 38m1 stop

1:49 pm - 8:29 pmMDW-DTW

5h 40m1 stop

$177Frontier

Find Deal

Fri, Sep 5 - Sun, Sep 7

11:34 am - 8:22 pmCLE-MDW

9h 48m1 stop

9:16 am - 5:31 pmMDW-CLE

7h 15m1 stop

$178Frontier

Find Deal

Sat, Aug 16 - Tue, Aug 19

American Airlines flights from Ohio to Illinois

Our best American Airlines deals on Ohio to Illinois flight tickets

American Airlines

Oct 4

PIT10:26 amPittsburgh

1h 44m

ORD11:10 amChicago O'Hare Intl

Oct 11

ORD1:59 pmChicago O'Hare Intl

1h 35m

PIT4:34 pmPittsburgh

$91

Find similar

American Airlines

Aug 23

PIT8:23 amPittsburgh

1h 54m

ORD9:17 amChicago O'Hare Intl

Aug 25

ORD1:54 pmChicago O'Hare Intl

1h 39m

PIT4:33 pmPittsburgh

$94

Find similar

American Airlines

Aug 27

DTW3:12 pmDetroit Metropolitan Wayne County

1h 31m

ORD3:43 pmChicago O'Hare Intl

Aug 29

ORD6:45 amChicago O'Hare Intl

1h 27m

DTW9:12 amDetroit Metropolitan Wayne County

$120

Find similar

Delta flights from Ohio to Illinois

Our best Delta deals on Ohio to Illinois flight tickets

Delta

Sep 16

DTW12:15 pmDetroit Metropolitan Wayne County

1h 20m

ORD12:35 pmChicago O'Hare Intl

Sep 23

ORD1:22 pmChicago O'Hare Intl

1h 24m

DTW3:46 pmDetroit Metropolitan Wayne County

$91

Find similar

Delta

Aug 23

DTW8:00 pmDetroit Metropolitan Wayne County

1h 23m

ORD8:23 pmChicago O'Hare Intl

Aug 25

ORD7:15 amChicago O'Hare Intl

1h 15m

DTW9:30 amDetroit Metropolitan Wayne County

$94

Find similar

Delta

Oct 23

DTW9:00 amDetroit Metropolitan Wayne County

1h 23m

ORD9:23 amChicago O'Hare Intl

Oct 27

ORD10:30 amChicago O'Hare Intl

1h 23m

DTW12:53 pmDetroit Metropolitan Wayne County

$97

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PittsburghChicago

PIT - MDW

PITMDW

Pittsburgh

Sat 11/1

4:35 pm-5:00 pm

Nonstop1h 25m

Chicago Midway

Tue 11/4

10:15 am-12:45 pm

Nonstop1h 30m

$91

PittsburghChicago

PIT - ORD

PITORD

Pittsburgh

Sat 10/4

10:26 am-11:10 am

Nonstop1h 44m

Chicago O'Hare Intl

Sat 10/11

1:59 pm-4:34 pm

Nonstop1h 35m

$91

PittsburghChicago

PIT - ORD

PITORD

Pittsburgh

Sat 8/23

8:23 am-9:17 am

Nonstop1h 54m

Chicago O'Hare Intl

Mon 8/25

1:54 pm-4:33 pm

Nonstop1h 39m

$94

PittsburghChicago

PIT - MDW

PITMDW

Pittsburgh

Sat 8/23

3:45 pm-4:10 pm

Nonstop1h 25m

Chicago Midway

Mon 8/25

5:25 pm-7:45 pm

Nonstop1h 20m

$94

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Tue 9/16

7:00 am-1:09 pm

1 stop7h 09m

Chicago O'Hare Intl

Tue 9/23

11:13 am-6:55 pm

1 stop6h 42m

$146

PittsburghChicago

PIT - ORD

PITORD

Pittsburgh

Thu 1/22

8:00 am-3:55 pm

1 stop8h 55m

Chicago O'Hare Intl

Mon 1/26

10:15 am-7:50 pm

1 stop8h 35m

$147

PittsburghChicago

PIT - ORD

PITORD

Pittsburgh

Tue 8/26

2:10 pm-2:54 pm

Nonstop1h 44m

Chicago O'Hare Intl

Tue 9/2

7:24 am-10:01 am

Nonstop1h 37m

$151

PittsburghChicago

PIT - ORD

PITORD

Pittsburgh

Thu 9/4

7:05 am-7:48 am

Nonstop1h 43m

Chicago O'Hare Intl

Sat 9/6

3:35 pm-6:16 pm

Nonstop1h 41m

$154

DetroitChicago

DTW - MDW

DTWMDW

Detroit Metropolitan Wayne County

Fri 9/5

3:42 pm-11:20 pm

1 stop8h 38m

Chicago Midway

Sun 9/7

1:49 pm-8:29 pm

1 stop5h 40m

$177

ClevelandChicago

CLE - MDW

CLEMDW

Cleveland Hopkins Intl

Sat 8/16

11:34 am-8:22 pm

1 stop9h 48m

Chicago Midway

Tue 8/19

9:16 am-5:31 pm

1 stop7h 15m

$178

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 August. Flight prices, which tend to average around $199, 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 August, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $236.

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 $523. Flights from Ohio to Illinois on a Monday will generally be more expensive and average around $669. 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 $495. Flights in the afternoon are often more expensive with an average ticket price of $941.

What is the cheapest Ohio to Illinois flight route?

Fly from Columbus to Chicago Midway for the best Ohio - Illinois flight prices

How far in advance should I book a flight 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 $301 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 $172 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	$45
Fastest flight time	1h 05m
Direct flights	Every day
Airports in Illinois	2 airports

The best one-way flight to Illinois from Ohio in the past 72 hours is $45. The best round-trip flight deal from Ohio to Illinois found on momondo in the last 72 hours is $91.

The fastest flight from Ohio to Illinois takes 1h 05m

Direct flights go from Ohio to Illinois every day.

There are 2 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW)

Search flight deals

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 July 2025.
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 Boeing 737-800 (9.21% of total bookings). The next most popular plane models are Embraer 175 (Enhanced Winglets) (8.83%), Boeing 737 MAX 8 (8.26%), and Embraer 170 (8.25%).

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
Frontier	PriceFrom $107	Free Cancellation	Rating 5.9 3,239 reviews	Search Frontier flights
American Airlines	PriceFrom $126	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $132	Free Cancellation	Rating 7.4 8,900 reviews	Search United Airlines flights
Southwest	PriceFrom $146	Free Cancellation	Rating 8.0 4,246 reviews	Search Southwest flights
Spirit Airlines	PriceFrom $179	Free Cancellation	Rating 6.3 8,049 reviews	Search Spirit Airlines flights
Delta	PriceFrom $570	Free Cancellation	Rating 8.0 7,981 reviews	Search Delta 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.

An easier way to manage your Illinois trip

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Find better results for your trip to Illinois

Popular cities in Illinois

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Cheap flights from Ohio to Illinois from $45

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 9/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

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Price Alerts

Find the cheapest flights from Ohio to Illinois

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

American Airlines flights from Ohio to Illinois

Our best American Airlines deals on Ohio to Illinois flight tickets

Delta flights from Ohio to Illinois

Our best Delta deals on Ohio to Illinois flight tickets

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Use the filters below to find and compare flights from Ohio to Illinois that are best for you.

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?

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?

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 $495. Flights in the afternoon are often more expensive with an average ticket price of $941.

What is the cheapest Ohio to Illinois flight route?

Fly from Columbus to Chicago Midway for the best Ohio - Illinois flight prices

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

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.

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

American Airlines, Southwest, and United Airlines are the most popular carriers operating from Ohio to Illinois

What airlines fly to Illinois?

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

233 flights are operational daily from Ohio to Illinois as of July 2025. The most popular departure time for this route is 2:00PM, with 44% of flights per day taking off in the afternoon.

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

1,635 flights are operational weekly from Ohio to Illinois as of July 2025. The most popular departure day for this route is Thu, with 23% of flights per week taking off on this day.

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

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

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?

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

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

Why use momondo?

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

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

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

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

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

Popular flights according to clicks in the last 7 days on momondo