$41+ Cheap flights from O'Hare Intl (ORD) 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from O'Hare Intl 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 O'Hare Intl to Illinois
Keep the following information in mind while searching for O'Hare Intl to Illinois flight deals. Data was last updated April 9, 2025.
Round-trip from | $79 (Trip.com) |
|---|---|
One-way from | $41 (Trip.com) |
Good round-trip deal | $178 or less |
Good one-way deal | $108 or less |
Find flight deals from O'Hare Intl to Illinois
Cheapest flights from O'Hare Intl to IllinoisExplore the most affordable flight options available from O'Hare Intl to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 9, 2025.
Explore the most affordable flight options available from O'Hare Intl to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 9, 2025.
This Trip.com deal was found by Cheapflights users on 4/8. 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 Trip.com 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 4/8. 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 Southwest deal was found by Cheapflights users on 4/8. 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 Flightnetwork deal was found by Cheapflights users on 4/8. 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 Flightnetwork 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 4/8. 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 United Airlines deal was found by Cheapflights users on 4/8. 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 CheapOair deal was found by Cheapflights users on 4/8. 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 American Airlines deal was found by Cheapflights users on 4/7. 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 Delta deal was found by Cheapflights users on 4/8. 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 American Airlines deal was found by Cheapflights users on 4/8. 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 CheapOair deal was found by Cheapflights users on 4/8. 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 United Airlines deal was found by Cheapflights users on 4/8. 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.
Cheapflights Fare Finder
Customize your flight search to find flights from O'Hare Intl 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 9, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
ChicagoSt. Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Thu 5/1
8:15 am-9:37 am
Nonstop1h 22m
Lambert-St Louis
Mon 5/5
6:00 am-7:20 am
Nonstop1h 20m
ChicagoSt. Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Tue 5/6
1:50 pm-9:50 pm
1 stop8h 00m
Lambert-St Louis
Wed 5/7
7:45 am-3:00 pm
1 stop7h 15m
ChicagoBurlington
ORD - BRL
ORDBRL
Chicago O'Hare Intl
Fri 5/23
8:25 am-10:05 am
Nonstop1h 40m
Burlington
Fri 5/30
6:00 am-7:40 am
Nonstop1h 40m
ChicagoSt. Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Thu 5/1
8:25 am-8:10 pm
1 stop11h 45m
Lambert-St Louis
Sat 5/3
12:15 pm-3:50 pm
1 stop3h 35m
ChicagoSt. Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Thu 5/1
2:20 pm-3:47 pm
Nonstop1h 27m
Lambert-St Louis
Mon 5/5
3:43 pm-5:04 pm
Nonstop1h 21m
ChicagoSt. Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Sat 4/26
4:30 pm-12:04 am
1 stop7h 34m
Lambert-St Louis
Sat 5/3
12:15 pm-3:50 pm
1 stop3h 35m
ChicagoDecatur
ORD - DEC
ORDDEC
Chicago O'Hare Intl
Fri 5/23
4:50 pm-5:53 pm
Nonstop1h 03m
Decatur Arpt
Fri 5/30
6:55 pm-8:03 pm
Nonstop1h 08m
ChicagoPeoria
ORD - PIA
ORDPIA
Chicago O'Hare Intl
Mon 5/19
8:45 pm-9:56 pm
Nonstop1h 11m
Greater Peoria
Mon 5/26
5:05 pm-6:13 pm
Nonstop1h 08m
ChicagoSt. Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Wed 5/21
9:00 am-1:19 pm
1 stop4h 19m
Lambert-St Louis
Wed 5/21
5:40 pm-11:58 pm
1 stop6h 18m
ChicagoMoline
ORD - MLI
ORDMLI
Chicago O'Hare Intl
Thu 5/1
9:10 pm-10:15 pm
Nonstop1h 05m
Moline Quad-City
Sun 5/4
6:30 pm-7:39 pm
Nonstop1h 09m
Best time to book a flight from O'Hare Intl to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from O'Hare Intl with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Chicago O'Hare Intl Airport to Illinois
What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Illinois?
Currently, August is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Illinois (average of $245). Flying from Chicago O'Hare Intl Airport 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 ORD to IL?
Find hourly flight availability from O'Hare Intl 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 9, 2025.
When flying from Chicago O'Hare Intl Airport to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
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 9, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Chicago to Illinois to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
Boarding
Comfort
Entertainment
Crew
Overall
Reviews
Anonymous,Apr 2025
LAS - STS
Food
Boarding
Comfort
Entertainment
Crew
Overall
Reviews
Anonymous,Apr 2025
LAS - STS
Food
Boarding
Comfort
Entertainment
Crew
Overall
Reviews
Anonymous,Apr 2025
LAS - STS
Food
Boarding
Comfort
Entertainment
Crew
Overall
Reviews
Anonymous,Apr 2025
LAS - STS
Food
Boarding
Comfort
Entertainment
Crew
Overall
Reviews
Anonymous,Apr 2025
LAS - STS
Food
Boarding
Comfort
Entertainment
Crew
Overall
Reviews
Anonymous,Apr 2025
LAS - STS
Related info for your journey
Find useful and relevant information for your journey from O'Hare Intl 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 O'Hare Intl to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Top 2 airlines flying from O'Hare Intl to Illinois
Discover the top 2 airlines that operate flights from O'Hare Intl 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 9, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$179 | Average$389 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$179 | Average$339 | FlexibilityNo cancel fee | On-time69% |