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$44+ 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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
CLE — ORD
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$97
(Delta)

One-way from

$44
(FlightHub)

Popular in

February

Cheapest in

April

Average price

$297

Good round-trip deal

$320 or less

Good one-way deal

$148 or less
Provider with most accurate pricing for Cleveland Hopkins Intl-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Cleveland Hopkins Intl-Chicago (CHI) flights.
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From Ohio to Illinois
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One-way flight from Ohio to Illinois
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Highest demand for flights based on searches. 6% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($2 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Ohio to Illinois.
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Price to beat on a one-way flight from Ohio to Illinois.
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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 March 28, 2025.

This Delta deal was found by Cheapflights users on 3/27. 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.
Thu 4/179:00 amDTW - ORD
Nonstop1h 21mDelta
Mon 4/215:05 pmORD - DTW
Nonstop1h 14mDelta
Deal found 3/27$97
This Delta deal was found by Cheapflights users on 3/27. 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.
Thu 4/176:05 pmDTW - MDW
Nonstop1h 15mDelta
Mon 4/219:20 amMDW - DTW
Nonstop1h 12mDelta
Deal found 3/27$97
This Southwest deal was found by Cheapflights users on 3/27. 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.
Thu 4/176:05 amDTW - MDW
1 stop5h 30mSouthwest
Mon 4/213:05 pmMDW - DTW
Nonstop1h 05mSouthwest
Deal found 3/27$107
This Southwest deal was found by Cheapflights users on 3/28. 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 5/136:45 amDTW - ORD
1 stop7h 00mSouthwest
Tue 5/204:00 pmORD - DTW
1 stop4h 10mSouthwest
Deal found 3/28$117
This Southwest deal was found by Cheapflights users on 3/27. 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.
Fri 4/182:15 pmPIT - MDW
Nonstop1h 30mSouthwest
Sat 4/195:45 amMDW - PIT
1 stop4h 50mSouthwest
Deal found 3/27$137
This Mytrip deal was found by Cheapflights users on 3/25. 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.
Wed 4/239:07 pmPIT - ORD
1 stop10h 56mSpirit Airlines
Wed 4/305:45 pmORD - PIT
1 stop25h 27mSpirit Airlines
Deal found 3/25$141
This CheapOair deal was found by Cheapflights users on 3/27. 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.
Thu 5/13:03 pmDTW - ORD
1 stop15h 42mSpirit Airlines
Fri 5/25:07 pmORD - DTW
1 stop6h 15mSpirit Airlines
Deal found 3/27$146
This United Airlines deal was found by Cheapflights users on 3/26. 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.
Wed 4/232:10 pmPIT - ORD
Nonstop1h 43mUnited Airlines
Wed 4/3011:15 amORD - PIT
1 stop4h 30mUnited Airlines
Deal found 3/26$152
This United Airlines deal was found by Cheapflights users on 3/27. 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.
Tue 5/135:55 pmDTW - ORD
Nonstop1h 27mUnited Airlines
Mon 5/199:05 pmORD - DTW
Nonstop1h 32mUnited Airlines
Deal found 3/27$157
This Frontier deal was found by Cheapflights users on 3/27. 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 4/172:42 pmDTW - ORD
1 stop10h 28mFrontier
Mon 4/214:26 pmORD - DTW
1 stop11h 07mFrontier
Deal found 3/27$158
This Frontier deal was found by Cheapflights users on 3/27. 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 4/176:05 amDTW - MDW
1 stop10h 11mFrontier
Mon 4/211:10 pmMDW - DTW
1 stop6h 19mFrontier
Deal found 3/27$158
This Frontier deal was found by Cheapflights users on 3/27. 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 4/256:10 amCVG - ORD
1 stop13h 07mFrontier
Mon 4/286:30 amORD - CVG
1 stop9h 14mFrontier
Deal found 3/27$158

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 March 28, 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

Thu 4/17

9:00 am-9:21 am

Nonstop1h 21m

Chicago O'Hare Intl

Mon 4/21

5:05 pm-7:19 pm

Nonstop1h 14m

$97

DetroitChicago

DTW - MDW

DTWMDW

Detroit Metropolitan Wayne County

Thu 4/17

6:05 pm-6:20 pm

Nonstop1h 15m

Chicago Midway

Mon 4/21

9:20 am-11:32 am

Nonstop1h 12m

$97

DetroitChicago

DTW - MDW

DTWMDW

Detroit Metropolitan Wayne County

Thu 4/17

6:05 am-10:35 am

1 stop5h 30m

Chicago Midway

Mon 4/21

3:05 pm-5:10 pm

Nonstop1h 05m

$107

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Tue 5/13

6:45 am-12:45 pm

1 stop7h 00m

Chicago O'Hare Intl

Tue 5/20

4:00 pm-9:10 pm

1 stop4h 10m

$117

PittsburghChicago

PIT - MDW

PITMDW

Pittsburgh

Fri 4/18

2:15 pm-2:45 pm

Nonstop1h 30m

Chicago Midway

Sat 4/19

5:45 am-11:35 am

1 stop4h 50m

$137

PittsburghChicago

PIT - ORD

PITORD

Pittsburgh

Wed 4/23

9:07 pm-7:03 am

1 stop10h 56m

Chicago O'Hare Intl

Wed 4/30

5:45 pm-8:12 pm

1 stop25h 27m

$141

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Thu 5/1

3:03 pm-5:45 am

1 stop15h 42m

Chicago O'Hare Intl

Fri 5/2

5:07 pm-12:22 am

1 stop6h 15m

$146

PittsburghChicago

PIT - ORD

PITORD

Pittsburgh

Wed 4/23

2:10 pm-2:53 pm

Nonstop1h 43m

Chicago O'Hare Intl

Wed 4/30

11:15 am-4:45 pm

1 stop4h 30m

$152

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Tue 5/13

5:55 pm-6:22 pm

Nonstop1h 27m

Chicago O'Hare Intl

Mon 5/19

9:05 pm-11:37 pm

Nonstop1h 32m

$157

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Thu 4/17

2:42 pm-12:10 am

1 stop10h 28m

Chicago O'Hare Intl

Mon 4/21

4:26 pm-4:33 am

1 stop11h 07m

$158

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 60 results
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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 $323). 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 March 28, 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 March 28, 2025.

The most flights from USOH to USIL are scheduled on a Thursday (52 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 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 March 28, 2025.
To help decide which airline to fly from Ohio to Illinois, see what other customers have to say about Southwest, Alaska Airlines and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Entertainment

7.6

Food

7.1

Crew

8.6

Overall

8.1

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,273 reviews
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Entertainment

7.6

Food

7.1

Crew

8.6

Overall

8.1

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Alaska Airlines
8.0
Very good
9,798 reviews
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Entertainment

7.6

Food

7.1

Crew

8.6

Overall

8.1

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,896 reviews
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Entertainment

7.6

Food

7.1

Crew

8.6

Overall

8.1

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,603 reviews
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Entertainment

7.6

Food

7.1

Crew

8.6

Overall

8.1

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
JetBlue
7.3
Good
2,923 reviews
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Entertainment

7.6

Food

7.1

Crew

8.6

Overall

8.1

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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 Spirit Airlines, which is currently one of the cheapest options available, starting at $44. Southwest flights start at $49 while deals on United Airlines start at $49 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 $323). 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

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Alternative routes for Ohio to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$100Average$147FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$117Average$316FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$118Average$334FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$148Average$311FlexibilityNo cancel feeOn-time63%
DeltaCheapest$156Average$763FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$159Average$248FlexibilityNo cancel feeOn-time65%
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