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 55% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 5 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

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

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

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

118 flights are operational daily from Ohio to Illinois as of February 2026. The most popular departure time for this route is 2:00PM, with 49% of flights per day taking off at noon.

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

828 flights are operational weekly from Ohio to Illinois as of February 2026. The most popular departure day for this route is Wed, with 38% of flights per week taking off on this day.

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 20m on average. If you fly from Cleveland (another popular airport in Ohio) to Chicago O'Hare Intl Airport, then the average flight time is 1h 28m.

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 February 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.

$43 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.

5:33 pm - 11:49 am

DTW

STL

19h 16m

1 stop

2:09 pm - 8:07 am

STL

DTW

16h 58m

1 stop

$142Frontier

Thu, Mar 5 - Mon, Mar 9

6:32 pm - 6:46 am

DTW

ORD

13h 14m

1 stop

3:10 pm - 9:58 pm

ORD

DTW

5h 48m

1 stop

$148Spirit Airlines

Tue, Apr 14 - Thu, Apr 16

9:00 am - 9:30 am

DTW

ORD

1h 30mnonstop

7:58 pm - 10:23 pm

ORD

DTW

1h 25mnonstop

$149United Airlines

Sat, Mar 7 - Sat, Mar 14

10:10 am - 4:52 pm

DTW

ORD

7h 42m

1 stop

6:51 pm - 7:49 am

ORD

DTW

11h 58m

1 stop

$150Multiple Airlines

Wed, Mar 4 - Thu, Mar 5

10:00 pm - 6:51 am

DTW

STL

9h 51m

1 stop

11:27 am - 10:37 pm

STL

DTW

10h 10m

1 stop

$154Multiple Airlines

Fri, Feb 27 - Tue, Mar 31

8:44 pm - 9:33 pm

CLE

ORD

1h 49mnonstop

10:50 am - 1:18 pm

ORD

CLE

1h 28mnonstop

$166American Airlines

Tue, Apr 7 - Fri, Apr 10

8:16 am - 9:02 am

CLE

ORD

1h 46mnonstop

4:04 pm - 6:35 pm

ORD

CLE

1h 31mnonstop

$171American Airlines

Thu, Apr 9 - Mon, Apr 13

7:50 pm - 8:10 pm

CLE

MDW

1h 20mnonstop

8:00 am - 10:15 am

MDW

CLE

1h 15mnonstop

$171Southwest

Thu, Mar 5 - Mon, Mar 9

8:51 am - 9:49 am

PIT

ORD

1h 58mnonstop

7:10 am - 9:41 am

ORD

PIT

1h 31mnonstop

$174United Airlines

Mon, Mar 16 - Wed, Mar 18

12:15 pm - 12:45 pm

PIT

MDW

1h 30mnonstop

12:45 pm - 11:00 pm

MDW

PIT

9h 15m

2 stops

$174Southwest

Tue, Mar 31 - Sat, Apr 18

Spirit Airlines flights from Ohio to Illinois

Our best Spirit Airlines deals on Ohio to Illinois flight tickets

Spirit Airlines

Apr 14

DTW6:32 pmDetroit Metropolitan Wayne County

13h 14m

1 stop

ORD6:46 amChicago O'Hare Intl

Apr 16

ORD3:10 pmChicago O'Hare Intl

5h 48m

1 stop

DTW9:58 pmDetroit Metropolitan Wayne County

$148

Spirit Airlines

Apr 17

DTW1:45 pmDetroit Metropolitan Wayne County

25h 56m

1 stop

ORD2:41 pmChicago O'Hare Intl

Apr 20

ORD4:47 pmChicago O'Hare Intl

6h 43m

1 stop

DTW12:30 amDetroit Metropolitan Wayne County

$154

Spirit Airlines

Mar 3

DTW2:35 pmDetroit Metropolitan Wayne County

21h 47m

2 stops

ORD11:22 amChicago O'Hare Intl

Mar 10

ORD6:51 pmChicago O'Hare Intl

11h 58m

1 stop

DTW7:49 amDetroit Metropolitan Wayne County

$155

JetBlue flights from Ohio to Illinois

Our best JetBlue deals on Ohio to Illinois flight tickets

JetBlue

Mar 18

PIT6:00 amPittsburgh

6h 25m

1 stop

ORD11:25 amChicago O'Hare Intl

Mar 24

ORD11:00 amChicago O'Hare Intl

5h 44m

1 stop

PIT5:44 pmPittsburgh

$185

JetBlue

Mar 18

PIT6:00 amPittsburgh

6h 25m

1 stop

ORD11:25 amChicago O'Hare Intl

Mar 24

ORD11:00 amChicago O'Hare Intl

5h 44m

1 stop

PIT5:44 pmPittsburgh

$190

JetBlue

Feb 25

PIT6:00 amPittsburgh

7h 04m

1 stop

ORD12:04 pmChicago O'Hare Intl

Feb 28

ORD6:04 amChicago O'Hare Intl

16h 45m

1 stop

PIT11:49 pmPittsburgh

$283

Fly from

Fly to

Route

Depart

Return

Price

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Thu 3/5

5:33 pm-11:49 am

1 stop19h 16m

Lambert-St Louis

Mon 3/9

2:09 pm-8:07 am

1 stop16h 58m

$142

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Tue 4/14

6:32 pm-6:46 am

1 stop13h 14m

Chicago O'Hare Intl

Thu 4/16

3:10 pm-9:58 pm

1 stop5h 48m

$148

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Sat 3/7

9:00 am-9:30 am

Nonstop1h 30m

Chicago O'Hare Intl

Sat 3/14

7:58 pm-10:23 pm

Nonstop1h 25m

$149

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Wed 3/4

10:10 am-4:52 pm

1 stop7h 42m

Chicago O'Hare Intl

Thu 3/5

6:51 pm-7:49 am

1 stop11h 58m

$150

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Fri 2/27

10:00 pm-6:51 am

1 stop9h 51m

Lambert-St Louis

Tue 3/31

11:27 am-10:37 pm

1 stop10h 10m

$154

ClevelandChicago

CLE - ORD

CLEORD

Cleveland Hopkins Intl

Tue 4/7

8:44 pm-9:33 pm

Nonstop1h 49m

Chicago O'Hare Intl

Fri 4/10

10:50 am-1:18 pm

Nonstop1h 28m

$166

ClevelandChicago

CLE - ORD

CLEORD

Cleveland Hopkins Intl

Thu 4/9

8:16 am-9:02 am

Nonstop1h 46m

Chicago O'Hare Intl

Mon 4/13

4:04 pm-6:35 pm

Nonstop1h 31m

$171

ClevelandChicago

CLE - MDW

CLEMDW

Cleveland Hopkins Intl

Thu 3/5

7:50 pm-8:10 pm

Nonstop1h 20m

Chicago Midway

Mon 3/9

8:00 am-10:15 am

Nonstop1h 15m

$171

PittsburghChicago

PIT - ORD

PITORD

Pittsburgh

Mon 3/16

8:51 am-9:49 am

Nonstop1h 58m

Chicago O'Hare Intl

Wed 3/18

7:10 am-9:41 am

Nonstop1h 31m

$174

PittsburghChicago

PIT - MDW

PITMDW

Pittsburgh

Tue 3/31

12:15 pm-12:45 pm

Nonstop1h 30m

Chicago Midway

Sat 4/18

12:45 pm-11:00 pm

2 stops9h 15m

$174

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 $187, 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 April is also cheap. Prices for this month can be found on momondo for an average of $242.

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 $538. Flights from Ohio to Illinois on a Sunday will generally be more expensive and average around $685. 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 $482. Flights in the afternoon are often more expensive with an average ticket price of $939.

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 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 $290 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 $88 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	$175
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 $175. The best round-trip flight deal from Ohio to Illinois found on momondo in the last 72 hours is $307.

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 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 February 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 Canadair (Bombardier) Regional Jet 700 (12.45% of total bookings). The next most popular plane models are Boeing 737-800 (9.99%), Embraer 175 (Enhanced Winglets) (9.48%), and Embraer 170 (8.44%).

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
Spirit Airlines	PriceFrom $90	Free Cancellation	Rating 6.3 8,444 reviews	Search Spirit Airlines flights
American Airlines	PriceFrom $128	Free Cancellation	Rating 7.2 11,267 reviews	Search American Airlines flights
United Airlines	PriceFrom $131	Free Cancellation	Rating 7.4 9,276 reviews	Search United Airlines flights
Southwest	PriceFrom $140	Free Cancellation	Rating 8.0 4,280 reviews	Search Southwest flights
Frontier	PriceFrom $143	Free Cancellation	Rating 5.7 3,052 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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Cheap flights from Ohio to Illinois from $43

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 3/14. 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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Spirit Airlines flights from Ohio to Illinois

Our best Spirit Airlines deals on Ohio to Illinois flight tickets

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Our best JetBlue 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

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 to Illinois?

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

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

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

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According to popular flight searches on momondo this year

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