$56+ Cheap flights from North America 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.
Find cheap flights from North America 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 North America to Illinois
Keep the following information in mind while searching for North America to Illinois flight deals. Data was last updated mai 1, 2025.
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $117 (JetBlue) |
One-way from | $56 (CheapOair) |
Popular in | December |
Cheapest in | September |
Average price | $249 |
Good round-trip deal | $78 or less |
Good one-way deal | $44 or less |
Find flight deals from North America to Illinois
Cheapest flights from North America to IllinoisExplore the most affordable flight options available from North America to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on mai 1, 2025.
Explore the most affordable flight options available from North America to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on mai 1, 2025.
This Delta deal was found by Cheapflights users on 4/30. 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 4/30. 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 Kiwi.com deal was found by Cheapflights users on 4/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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 Cheapflightsfares 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 4/29. 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 Mytrip deal was found by Cheapflights users on 4/30. 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.
This FlightHub deal was found by Cheapflights users on 4/29. 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 eDestinos deal was found by Cheapflights users on 4/30. 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 eDestinos 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 4/30. 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 United Airlines deal was found by Cheapflights users on 4/30. 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 Expedia deal was found by Cheapflights users on 4/30. 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 Expedia 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 4/28. 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.
Cheapflights Fare Finder
Customize your flight search to find flights from North America 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 mai 1, 2025.
Use the filters below to find and compare flights from North America to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
BostonChicago
BOS - ORD
BOSORD
Boston Logan Intl
mer. 6/4
8:20 pm-10:14 pm
Nonstop2h 54m
Chicago O'Hare Intl
mer. 6/11
10:18 am-1:51 pm
Nonstop2h 33m
BostonChicago
BOS - ORD
BOSORD
Boston Logan Intl
sam. 5/10
3:52 pm-5:54 pm
Nonstop3h 02m
Chicago O'Hare Intl
lun. 5/12
6:35 pm-10:07 pm
Nonstop2h 32m
DallasChicago
DFW - MDW
DFWMDW
Dallas/Fort Worth
mer. 6/18
2:40 pm-5:07 pm
Nonstop2h 27m
Chicago Midway
jeu. 6/26
7:40 am-10:11 am
Nonstop2h 31m
NewarkChicago
EWR - ORD
EWRORD
Newark
jeu. 5/29
5:55 am-7:27 am
Nonstop2h 32m
Chicago O'Hare Intl
jeu. 5/29
7:35 pm-9:07 am
1 stop12h 32m
DallasChicago
DFW - ORD
DFWORD
Dallas/Fort Worth
ven. 6/13
9:05 pm-11:49 pm
Nonstop2h 44m
Chicago O'Hare Intl
sam. 6/28
9:55 am-12:30 pm
Nonstop2h 35m
BostonChicago
BOS - ORD
BOSORD
Boston Logan Intl
mer. 6/4
3:49 pm-11:04 pm
1 stop8h 15m
Chicago O'Hare Intl
mer. 6/11
5:05 am-2:44 pm
1 stop8h 39m
DallasChicago
DFW - ORD
DFWORD
Dallas/Fort Worth
ven. 5/30
9:00 am-8:08 pm
1 stop11h 08m
Chicago O'Hare Intl
mar. 6/3
6:09 pm-9:21 pm
Nonstop3h 12m
DallasChicago
DFW - ORD
DFWORD
Dallas/Fort Worth
ven. 5/30
9:00 am-8:08 pm
1 stop11h 08m
Chicago O'Hare Intl
ven. 6/6
8:15 pm-10:57 pm
Nonstop2h 42m
BostonChicago
BOS - ORD
BOSORD
Boston Logan Intl
sam. 6/7
6:45 am-3:00 pm
1 stop9h 15m
Chicago O'Hare Intl
mar. 6/10
4:00 pm-11:55 pm
1 stop6h 55m
BostonChicago
BOS - ORD
BOSORD
Boston Logan Intl
lun. 5/19
6:00 am-7:57 am
Nonstop2h 57m
Chicago O'Hare Intl
mer. 5/21
9:20 am-12:48 pm
Nonstop2h 28m
Best time to book a flight from North America to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from North America with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from North America to Illinois
What is the cheapest month to book a flight from North America to Illinois?
Currently, August is the cheapest month in which you can book a flight from North America to Illinois (average of $245). Flying from North America 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 NA to IL?
Find hourly flight availability from North America 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 mai 1, 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from North America to Illinois as you normally would.
Weekly flight availability from North America to Illinois
Explore weekly flight availability from North America 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 mai 1, 2025.
The most flights from 0NA to USIL are scheduled on a Wednesday (100 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (46 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 mai 1, 2025.
Food
Comfort
Crew
Entertainment
Overall
Boarding
Reviews
James,Apr 2025
LAX - SFO
Food
Comfort
Crew
Entertainment
Overall
Boarding
Reviews
James,Apr 2025
LAX - SFO
Food
Comfort
Crew
Entertainment
Overall
Boarding
Reviews
James,Apr 2025
LAX - SFO
Food
Comfort
Crew
Entertainment
Overall
Boarding
Reviews
James,Apr 2025
LAX - SFO
Food
Comfort
Crew
Entertainment
Overall
Boarding
Reviews
James,Apr 2025
LAX - SFO
Food
Comfort
Crew
Entertainment
Overall
Boarding
Reviews
James,Apr 2025
LAX - SFO
Related info for your journey
Find useful and relevant information for your journey from North America to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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 North America to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from North America to Illinois
Discover the top 10 airlines that operate flights from North America 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 mai 1, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$39 | Average$167 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$49 | Average$171 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$50 | Average$184 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$68 | Average$376 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$80 | Average$226 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$97 | Average$417 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$114 | Average$311 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$130 | Average$330 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$136 | Average$328 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$139 | Average$436 | FlexibilityNo cancel fee | On-time71% |