$42+ Cheap flights from Illinois to O'Hare Intl (ORD)
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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ORD
Nov 27 — Dec 41
1 adult, Economy
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Cheapest flights from Illinois to O'Hare IntlExplore the most affordable flight options available from Illinois to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.
Explore the most affordable flight options available from Illinois to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.
This American Airlines deal was found by Cheapflights users on 10/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/188:01 pmSTL - ORD
Nonstop1h 29mAmerican Airlines
Tue 1/68:50 amORD - STL
Nonstop1h 30mAmerican Airlines
Deal found 10/28![American Airlines logo]()
$97
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Mon 11/245:24 pmSTL - ORD
Nonstop1h 23mUnited Airlines
Thu 11/2712:59 pmORD - STL
Nonstop1h 23mUnited Airlines
Deal found 10/27![United Airlines logo]()
$101
This American Airlines deal was found by Cheapflights users on 10/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/225:54 amSTL - ORD
Nonstop1h 30mAmerican Airlines
Thu 12/257:07 amORD - STL
Nonstop1h 28mAmerican Airlines
Deal found 10/27![American Airlines logo]()
$119
This Booking.com deal was found by Cheapflights users on 10/26. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/142:25 pmBRL - ORD
Nonstop1h 20mContour
Tue 11/186:25 pmORD - BRL
Nonstop1h 20mContour
Deal found 10/26![Contour logo]()
$129
This Booking.com deal was found by Cheapflights users on 10/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/22:25 pmBRL - ORD
Nonstop1h 20mContour
Tue 11/46:25 pmORD - BRL
Nonstop1h 20mContour
Deal found 10/27![Contour logo]()
$133
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/122:25 pmBRL - ORD
Nonstop1h 20mContour
Sun 11/166:25 pmORD - BRL
Nonstop1h 20mContour
Deal found 10/28![Contour logo]()
$142
This Mytrip deal was found by Cheapflights users on 10/25. 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.
Mon 11/102:25 pmBRL - ORD
Nonstop1h 20mContour
Fri 11/1410:50 amORD - BRL
Nonstop1h 20mContour
Deal found 10/25![Contour logo]()
$143
This Frontier deal was found by Cheapflights users on 10/27. 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 12/510:42 amSTL - ORD
1 stop11h 42mFrontier
Sat 12/62:26 pmORD - STL
1 stop8h 07mFrontier
Deal found 10/27![Frontier logo]()
$143
This Mytrip deal was found by Cheapflights users on 10/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/119:00 amBRL - ORD
Nonstop1h 10mContour
Sat 11/1510:50 amORD - BRL
Nonstop1h 20mContour
Deal found 10/27![Contour logo]()
$144
This United Airlines deal was found by Cheapflights users on 10/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/219:44 amDEC - ORD
Nonstop1h 11mUnited Airlines
Thu 12/114:50 pmORD - DEC
Nonstop1h 02mUnited Airlines
Deal found 10/28![United Airlines logo]()
$149
This Booking.com deal was found by Cheapflights users on 10/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/142:25 pmBRL - ORD
Nonstop1h 20mContour
Sun 11/166:25 pmORD - BRL
Nonstop1h 20mContour
Deal found 10/28![Contour logo]()
$149
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Sat 12/135:27 pmSTL - ORD
Nonstop1h 23mUnited Airlines
Mon 12/151:00 pmORD - STL
Nonstop1h 23mUnited Airlines
Deal found 10/26![United Airlines logo]()
$154
Cheap flight deals from Illinois to O'Hare Intl
Keep the following information in mind while searching for Illinois to O'Hare Intl flight deals. Data was last updated October 28, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $97 (American Airlines) |
One-way from | $42 (eDestinos) |
Popular in | July |
Cheapest in | January |
Average price | $209 |
Good round-trip deal | $147 or less |
Good one-way deal | $57 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to O'Hare Intl 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 October 28, 2025.
Use the filters below to find and compare flights from Illinois to Chicago O'Hare Intl Airport that are best for you.
Fly from
Illinois
Fly to
O'Hare Intl
Route
Depart
Return
Price
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Wed 12/24
6:00 am-7:27 am
Nonstop1h 27m
Chicago O'Hare Intl
Wed 12/31
7:14 am-8:48 am
Nonstop1h 34m
$97
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Thu 12/18
8:01 pm-9:30 pm
Nonstop1h 29m
Chicago O'Hare Intl
Tue 1/6
8:50 am-10:20 am
Nonstop1h 30m
$97
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Mon 11/24
5:24 pm-6:47 pm
Nonstop1h 23m
Chicago O'Hare Intl
Thu 11/27
12:59 pm-2:22 pm
Nonstop1h 23m
$101
BurlingtonChicago
BRL - ORD
BRLORD
Burlington
Sat 2/28
9:00 am-10:10 am
Nonstop1h 10m
Chicago O'Hare Intl
Wed 3/4
6:25 pm-7:45 pm
Nonstop1h 20m
$118
BurlingtonChicago
BRL - ORD
BRLORD
Burlington
Fri 11/14
2:25 pm-3:45 pm
Nonstop1h 20m
Chicago O'Hare Intl
Tue 11/18
6:25 pm-7:45 pm
Nonstop1h 20m
$129
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Wed 12/17
8:00 am-9:29 am
Nonstop1h 29m
Chicago O'Hare Intl
Thu 1/8
9:25 pm-10:58 pm
Nonstop1h 33m
$137
BurlingtonChicago
BRL - ORD
BRLORD
Burlington
Wed 11/12
2:25 pm-3:45 pm
Nonstop1h 20m
Chicago O'Hare Intl
Sun 11/16
6:25 pm-7:45 pm
Nonstop1h 20m
$142
BurlingtonChicago
BRL - ORD
BRLORD
Burlington
Mon 11/10
2:25 pm-3:45 pm
Nonstop1h 20m
Chicago O'Hare Intl
Fri 11/14
10:50 am-12:10 pm
Nonstop1h 20m
$143
BurlingtonChicago
BRL - ORD
BRLORD
Burlington
Tue 11/11
9:00 am-10:10 am
Nonstop1h 10m
Chicago O'Hare Intl
Sat 11/15
10:50 am-12:10 pm
Nonstop1h 20m
$144
DecaturChicago
DEC - ORD
DECORD
Decatur Arpt
Fri 11/21
9:44 am-10:55 am
Nonstop1h 11m
Chicago O'Hare Intl
Thu 12/11
4:50 pm-5:52 pm
Nonstop1h 02m
$149
Showing 1-10 of 60 results
Best time to book a flight from Illinois to O'Hare Intl
Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Illinois 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 Illinois to Chicago O'Hare Intl Airport
What is the cheapest month to book a flight from Illinois to Chicago O'Hare Intl Airport?
Currently, May is the cheapest month in which you can book a flight from Illinois to Chicago O'Hare Intl Airport (average of $158). Flying from Illinois to Chicago O'Hare Intl Airport in April is currently the most expensive (average of $243). 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 IL to ORD?
Find hourly flight availability from Illinois to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 28, 2025.
It’s optimal to fly from Illinois to Chicago O'Hare Intl Airport in the morning. By choosing this option you can save up to 9% on the cost of your flight, compared to a flight in the evening.
Reviews of airlines servicing O'Hare Intl
Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated October 28, 2025.
Read through reviews of airlines operating flights from Illinois to Chicago O'Hare Intl Airport, such as Contour, United Airlines, and American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.4
Entertainment
6.3
Crew
7.8
Comfort
7.2
Overall
7.4
Food
6.8
Reviews
1 / 1
2.0
MediocreKavita,Aug 2025
PAH - CLT
Boarding
7.4
Entertainment
6.3
Crew
7.8
Comfort
7.2
Overall
7.4
Food
6.8
Reviews
1 / 1
2.0
MediocreKavita,Aug 2025
PAH - CLT
Boarding
7.4
Entertainment
6.3
Crew
7.8
Comfort
7.2
Overall
7.4
Food
6.8
Reviews
1 / 1
2.0
MediocreKavita,Aug 2025
PAH - CLT
Boarding
7.4
Entertainment
6.3
Crew
7.8
Comfort
7.2
Overall
7.4
Food
6.8
Reviews
1 / 1
2.0
MediocreKavita,Aug 2025
PAH - CLT
Boarding
7.4
Entertainment
6.3
Crew
7.8
Comfort
7.2
Overall
7.4
Food
6.8
Reviews
1 / 1
2.0
MediocreKavita,Aug 2025
PAH - CLT
Related info for your journey
Find useful and relevant information for your journey from Illinois to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Chicago O'Hare Intl Airport?
Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locationsSchaumburg
Rosemont
Skokie
Des Plaines
Gurnee
Hoffman Estates
Elgin
Oak Brook
Elk Grove Village
Beloit
Rockford
Naperville
Racine
Downers Grove
Orland Park
Merrillville
Bridgeview
Warrenville
Joliet
Waukegan
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Alternative routes for Illinois to O'Hare Intl
See prices for flight routes from nearby airports that may be better suited for you.
Top 2 airlines flying from Illinois to O'Hare Intl
Discover the top 2 airlines that operate flights from Illinois to O'Hare Intl. 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 October 28, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$179 | Average$258 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$179 | Average$334 | FlexibilityNo cancel fee | On-time71% |