HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$49+ Cheap flights from Ohio to Illinois

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/17. Fares are subject to change and may not be available on all flights or dates of travel.
CVG — ORD
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ohio to Illinois with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ohio to Illinois

Keep the following information in mind while searching for Ohio to Illinois flight deals. Data was last updated April 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$97
(Delta)

One-way from

$49
(United Airlines)

Popular in

February

Cheapest in

September

Average price

$250

Good round-trip deal

$314 or less

Good one-way deal

$144 or less
Provider with most accurate pricing for Cleveland Hopkins Intl-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Cleveland Hopkins Intl-Chicago (CHI) flights.
Search Deals
From Ohio to Illinois
Search Deals
One-way flight from Ohio to Illinois
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($17 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals
Price to beat on a round-trip flight from Ohio to Illinois.
Search Deals
Price to beat on a one-way flight from Ohio to Illinois.
Search Deals

Find flight deals from Ohio to Illinois

Cheapest flights from Ohio to Illinois
Explore the most affordable flight options available from Ohio to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This American Airlines deal was found by Cheapflights users on 4/16. 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.
Mon 9/88:27 pmPIT - ORD
Nonstop1h 46mAmerican Airlines
Wed 9/108:54 pmORD - PIT
Nonstop1h 50mAmerican Airlines
Deal found 4/16$97
This Delta deal was found by Cheapflights users on 4/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/147:30 amDTW - ORD
Nonstop1h 19mDelta
Thu 5/151:45 pmORD - DTW
Nonstop1h 25mDelta
Deal found 4/16$97
This Delta deal was found by Cheapflights users on 4/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/148:25 amDTW - MDW
Nonstop1h 15mDelta
Wed 5/219:16 amMDW - DTW
Nonstop1h 10mDelta
Deal found 4/16$97
This Southwest deal was found by Cheapflights users on 4/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/281:30 pmDTW - MDW
1 stop7h 20mSouthwest
Thu 5/296:55 pmMDW - DTW
Nonstop1h 05mSouthwest
Deal found 4/17$107
This Southwest deal was found by Cheapflights users on 4/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/135:55 amDTW - ORD
1 stop6h 55mSouthwest
Wed 5/144:00 pmORD - DTW
1 stop4h 10mSouthwest
Deal found 4/16$117
This Southwest deal was found by Cheapflights users on 4/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/136:00 amPIT - ORD
1 stop6h 50mSouthwest
Wed 5/141:50 pmORD - PIT
1 stop7h 20mSouthwest
Deal found 4/16$122
This Mytrip deal was found by Cheapflights users on 4/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/179:09 pmDTW - ORD
1 stop12h 46mSpirit Airlines
Mon 5/1910:00 amORD - DTW
1 stop20h 35mSpirit Airlines
Deal found 4/16$136
This United Airlines deal was found by Cheapflights users on 4/16. 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.
Sat 5/246:00 amDTW - ORD
Nonstop1h 30mUnited Airlines
Mon 5/2610:50 amORD - DTW
Nonstop1h 32mUnited Airlines
Deal found 4/16$138
This Frontier deal was found by Cheapflights users on 4/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/92:28 pmDTW - ORD
1 stop10h 13mFrontier
Sun 5/115:45 amORD - DTW
1 stop9h 33mFrontier
Deal found 4/17$160
This Frontier deal was found by Cheapflights users on 4/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/86:50 amDTW - MDW
1 stop8h 39mFrontier
Mon 5/128:30 amMDW - DTW
1 stop5h 17mFrontier
Deal found 4/16$160
This Frontier deal was found by Cheapflights users on 4/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1712:57 pmCVG - ORD
1 stop11h 35mFrontier
Sun 5/184:15 pmORD - CVG
1 stop7h 44mFrontier
Deal found 4/17$160
This CheapOair deal was found by Cheapflights users on 4/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/96:14 pmPIT - ORD
1 stop6h 18mFrontier
Sun 5/114:15 pmORD - PIT
1 stop24h 09mFrontier
Deal found 4/17$161

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated April 17, 2025.
Use the filters below to find and compare flights from Ohio to Illinois that are best for you.

Fly from

Ohio

Fly to

Illinois

Route

Depart

Return

Price

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Wed 5/14

7:30 am-7:49 am

Nonstop1h 19m

Chicago O'Hare Intl

Thu 5/15

1:45 pm-4:10 pm

Nonstop1h 25m

$97

DetroitChicago

DTW - MDW

DTWMDW

Detroit Metropolitan Wayne County

Wed 5/14

8:25 am-8:40 am

Nonstop1h 15m

Chicago Midway

Thu 5/15

9:16 am-11:26 am

Nonstop1h 10m

$97

DetroitChicago

DTW - MDW

DTWMDW

Detroit Metropolitan Wayne County

Tue 5/13

6:30 pm-11:10 pm

1 stop5h 40m

Chicago Midway

Wed 5/14

6:35 pm-8:40 pm

Nonstop1h 05m

$107

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Tue 5/13

5:55 am-11:50 am

1 stop6h 55m

Chicago O'Hare Intl

Wed 5/14

4:00 pm-9:10 pm

1 stop4h 10m

$117

PittsburghChicago

PIT - ORD

PITORD

Pittsburgh

Tue 5/13

6:00 am-11:50 am

1 stop6h 50m

Chicago O'Hare Intl

Wed 5/14

1:50 pm-10:10 pm

1 stop7h 20m

$122

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Sat 5/17

9:09 pm-8:55 am

1 stop12h 46m

Chicago O'Hare Intl

Mon 5/19

10:00 am-7:35 am

1 stop20h 35m

$136

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Sat 5/24

6:00 am-6:30 am

Nonstop1h 30m

Chicago O'Hare Intl

Mon 5/26

10:50 am-1:22 pm

Nonstop1h 32m

$138

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Fri 5/9

2:28 pm-11:41 pm

1 stop10h 13m

Chicago O'Hare Intl

Sun 5/11

5:45 am-4:18 pm

1 stop9h 33m

$160

DetroitChicago

DTW - MDW

DTWMDW

Detroit Metropolitan Wayne County

Thu 5/8

6:50 am-2:29 pm

1 stop8h 39m

Chicago Midway

Mon 5/12

8:30 am-2:47 pm

1 stop5h 17m

$160

CincinnatiChicago

CVG - ORD

CVGORD

Cincinnati Cinci./N. Kentucky

Sat 5/17

12:57 pm-11:32 pm

1 stop11h 35m

Chicago O'Hare Intl

Sun 5/18

4:15 pm-12:59 am

1 stop7h 44m

$160

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Ohio to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Ohio 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 Ohio to Illinois

What is the cheapest month to book a flight from Ohio to Illinois?

Currently, August is the cheapest month in which you can book a flight from Ohio to Illinois (average of $245). Flying from Ohio 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 OH to IL?

Find hourly flight availability from Ohio 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 April 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ohio to Illinois as you normally would.

Weekly flight availability from Ohio to Illinois

Explore weekly flight availability from Ohio 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 April 17, 2025.

The most flights from USOH to USIL are scheduled on a Wednesday (62 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 on average).

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 April 17, 2025.
To help decide which airline to fly from Ohio to Illinois, see what other customers have to say about Alaska Airlines, Southwest and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,887 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.9

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,887 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.9

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,280 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.9

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,916 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.9

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,667 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.9

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
JetBlue
7.3
Good
2,926 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.9

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

Find useful and relevant information for your journey from Ohio to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Ohio to Illinois one-way?

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $49. Delta flights start at $49 while deals on Southwest start at $59 one-way.

  • Can I find deals for flights from Ohio to Illinois that include hotel bookings?

    Yes. In addition to deals on Ohio to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ohio to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ohio to Illinois.

  • Can I find deals for business class flights from Ohio to Illinois?

    Yes. Cheapflights offers flight deals from Ohio 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 Ohio to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Ohio to Illinois (average of $245). Flying from Ohio 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ohio to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Fort Lauderdale flights
LaGuardia to Fort Lauderdale flights
John F Kennedy Intl to Los Angeles flights
Newark to Orlando flights
John F Kennedy Intl to Miami flights
Newark to Los Angeles flights
LaGuardia to Miami flights
Newark to Miami flights
San Francisco to John F Kennedy Intl flights
Los Angeles to John F Kennedy Intl flights
John F Kennedy Intl to Dallas/Fort Worth flights
John F Kennedy Intl to Fort Lauderdale flights
Dallas/Fort Worth to LaGuardia flights
Dallas/Fort Worth to John F Kennedy Intl flights
Dallas/Fort Worth to Seattle flights
John F Kennedy Intl to Las Vegas flights
O'Hare Intl to Las Vegas flights
Newark to Las Vegas flights
John F Kennedy Intl to San Francisco flights
LaGuardia to Orlando flights
John F Kennedy Intl to O'Hare Intl flights
Los Angeles to Newark flights
LaGuardia to Dallas/Fort Worth flights
LaGuardia to O'Hare Intl flights
John F Kennedy Intl to Orlando flights
LaGuardia to Atlanta flights
Los Angeles to Boston flights
Dallas/Fort Worth to O'Hare Intl flights
Los Angeles to Honolulu flights
Newark to O'Hare Intl flights
Newark to Seattle flights
O'Hare Intl to Dallas/Fort Worth flights
O'Hare Intl to LaGuardia flights
Dallas/Fort Worth to Las Vegas flights
San Francisco to Newark flights
John F Kennedy Intl to Seattle flights
Newark to Tampa flights
Dallas/Fort Worth to Newark flights
O'Hare Intl to John F Kennedy Intl flights
Los Angeles to Seattle flights
John F Kennedy Intl to West Palm Beach flights
Newark to Dallas/Fort Worth flights
Seattle to Newark flights
Seattle to Los Angeles flights
Los Angeles to LaGuardia flights
LaGuardia to Los Angeles flights
Newark to San Francisco flights
Seattle to Las Vegas flights
Fort Lauderdale to Newark flights
LaGuardia to Hobby flights

Top 6 airlines flying from Ohio to Illinois

Discover the top 6 airlines that operate flights from Ohio 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$100Average$148FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$117Average$317FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$118Average$332FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$148Average$317FlexibilityNo cancel feeOn-time63%
DeltaCheapest$156Average$719FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$163Average$248FlexibilityNo cancel feeOn-time65%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights