$54+ 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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
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
Discover tips and strategies to find the most affordable flight options for your journey from Ohio (USOH) to Illinois (USIL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.
Round-trip from | $130 (FlightHub) |
|---|---|
One-way from | $55 (Frontier) |
Good round-trip deal | $341 or less |
Good one-way deal | $171 or less |
Find flight deals from Ohio to Illinois
Cheapest flights from Ohio to IllinoisExplore 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 January 21, 2025.
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 January 21, 2025.
This FlightHub deal was found by Cheapflights users on 1/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This KAYAK deal was found by Cheapflights users on 1/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This CheapOair deal was found by Cheapflights users on 1/20. 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.
This Delta deal was found by Cheapflights users on 1/21. 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.
This Frontier deal was found by Cheapflights users on 1/20. 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.
This Frontier deal was found by Cheapflights users on 1/21. 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.
This CheapOair deal was found by Cheapflights users on 1/20. 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.
This Southwest deal was found by Cheapflights users on 1/21. 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.
This American Airlines deal was found by Cheapflights users on 1/21. 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.
This United Airlines deal was found by Cheapflights users on 1/20. 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.
This Southwest deal was found by Cheapflights users on 1/21. 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.
This CheapOair deal was found by Cheapflights users on 1/20. 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.
Find flights from Ohio to Illinois within your budget
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 January 21, 2025.
Fly from
Fly to
Route
Depart
Return
Price
DetroitSt. Louis
DTW - STL
DTWSTL
Detroit Metropolitan Wayne County
Sun 2/2
9:14 pm-9:16 am
1 stop13h 02m
Lambert-St Louis
Tue 2/4
5:05 pm-2:01 pm
1 stop19h 56m
DetroitChicago
DTW - ORD
DTWORD
Detroit Metropolitan Wayne County
Wed 3/5
8:20 pm-8:53 pm
Nonstop1h 33m
Chicago O'Hare Intl
Thu 3/6
4:58 pm-7:25 pm
Nonstop1h 27m
DetroitChicago
DTW - ORD
DTWORD
Detroit Metropolitan Wayne County
Wed 2/12
6:25 am-12:37 pm
1 stop7h 12m
Chicago O'Hare Intl
Thu 2/13
12:48 pm-8:03 pm
1 stop6h 15m
DetroitChicago
DTW - MDW
DTWMDW
Detroit Metropolitan Wayne County
Thu 2/13
12:45 pm-1:05 pm
Nonstop1h 20m
Chicago Midway
Mon 2/17
9:33 am-11:45 am
Nonstop1h 12m
DetroitChicago
DTW - ORD
DTWORD
Detroit Metropolitan Wayne County
Fri 2/21
3:35 pm-12:44 am
1 stop10h 09m
Chicago O'Hare Intl
Wed 2/26
8:33 am-2:52 pm
1 stop5h 19m
DetroitChicago
DTW - MDW
DTWMDW
Detroit Metropolitan Wayne County
Fri 2/7
10:35 am-5:53 pm
1 stop8h 18m
Chicago Midway
Wed 2/12
8:12 am-2:52 pm
1 stop5h 40m
DetroitChicago
DTW - ORD
DTWORD
Detroit Metropolitan Wayne County
Fri 2/28
6:25 am-12:37 pm
1 stop7h 12m
Chicago O'Hare Intl
Sun 3/2
2:58 pm-5:00 am
1 stop13h 02m
DetroitChicago
DTW - MDW
DTWMDW
Detroit Metropolitan Wayne County
Thu 2/13
9:05 pm-12:15 am
1 stop4h 10m
Chicago Midway
Mon 2/17
8:15 pm-10:25 pm
Nonstop1h 10m
DetroitChicago
DTW - ORD
DTWORD
Detroit Metropolitan Wayne County
Wed 2/19
8:05 am-8:45 am
Nonstop1h 40m
Chicago O'Hare Intl
Sat 2/22
8:55 am-11:16 am
Nonstop1h 21m
AkronChicago
CAK - ORD
CAKORD
Akron/Canton
Wed 2/19
2:04 pm-2:55 pm
Nonstop1h 51m
Chicago O'Hare Intl
Wed 2/26
10:49 am-1:20 pm
Nonstop1h 31m
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.
Travel insights for flights from Ohio to Illinois
Get recent, data-driven insights about flights from Ohio to Illinois including ideal travel times, pricing trends, and more.
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 $320). 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 January 21, 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 January 21, 2025.
The most flights from USOH to USIL are scheduled on a Monday (47 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (32 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 January 21, 2025.
To help decide which airline to fly from Ohio to Illinois, see what other customers have to say about American Airlines, United Airlines and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
Food
Crew
Entertainment
Overall
Boarding
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Comfort
Food
Crew
Entertainment
Overall
Boarding
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Comfort
Food
Crew
Entertainment
Overall
Boarding
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Comfort
Food
Crew
Entertainment
Overall
Boarding
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Comfort
Food
Crew
Entertainment
Overall
Boarding
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Comfort
Food
Crew
Entertainment
Overall
Boarding
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
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.
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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.
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 January 21, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$100 | Average$147 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$111 | Average$314 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$115 | Average$322 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$151 | Average$319 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$156 | Average$402 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$159 | Average$224 | FlexibilityNo cancel fee | On-time65% |