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$65+ Cheap flights from Illinois to North America

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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LAX
Aug 16 — Aug 231
Sat 8/16
Sat 8/23
1 adult, Economy
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Cheap flight deals from Illinois to North America

Keep the following information in mind while searching for Illinois to North America flight deals. Data was last updated August 11, 2025.

Round-trip from

$107
(Kiwi.com)

One-way from

$65
(Frontier)

Popular in

December

Cheapest in

January

Average price

$218

Good round-trip deal

$76 or less

Good one-way deal

$38 or less
From Illinois to North America
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One-way flight from Illinois to North America
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Highest demand for flights based on searches. 3% potential increase in price ($7 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Illinois to North America.
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Price to beat on a one-way flight from Illinois to North America.
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Find flight deals from Illinois to North America

Cheapest flights from Illinois to North America
Explore the most affordable flight options available from Illinois to North America. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2025.

This Frontier deal was found by Cheapflights users on 8/11. 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 9/45:35 pmORD - DFW
Nonstop2h 51mFrontier
Sat 9/69:27 pmDFW - ORD
Nonstop2h 31mFrontier
Deal found 8/11$108
This CheapOair deal was found by Cheapflights users on 8/9. 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.
Fri 10/105:25 amORD - DFW
Nonstop2h 33mFrontier
Mon 10/1310:49 pmDFW - ORD
Nonstop2h 35mFrontier
Deal found 8/9$109
This CheapOair deal was found by Cheapflights users on 8/9. 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.
Sat 9/65:30 pmORD - DFW
Nonstop2h 51mFrontier
Sat 9/139:27 pmDFW - ORD
Nonstop2h 31mFrontier
Deal found 8/9$110
This Frontier deal was found by Cheapflights users on 8/9. 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.
Tue 9/236:44 pmORD - DFW
Nonstop2h 55mFrontier
Tue 9/308:00 amDFW - ORD
Nonstop2h 40mFrontier
Deal found 8/9$111
This CheapOair deal was found by Cheapflights users on 8/8. 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.
Wed 8/275:27 pmORD - DFW
Nonstop2h 49mFrontier
Sun 8/319:21 pmDFW - ORD
Nonstop2h 40mFrontier
Deal found 8/8$112
This Cheapflightsfares deal was found by Cheapflights users on 8/10. 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.
Thu 9/116:00 amORD - DEN
Nonstop2h 45mFrontier
Sun 9/146:00 amDEN - ORD
Nonstop2h 37mFrontier
Deal found 8/10$112
This Trip.com deal was found by Cheapflights users on 8/9. 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.
Thu 9/255:35 pmORD - DFW
Nonstop2h 51mFrontier
Sat 9/279:27 pmDFW - ORD
Nonstop2h 31mFrontier
Deal found 8/9$113
This Frontier deal was found by Cheapflights users on 8/9. 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 10/96:50 amORD - DEN
Nonstop2h 41mFrontier
Thu 10/168:22 pmDEN - ORD
Nonstop2h 31mFrontier
Deal found 8/9$113
This FlightHub deal was found by Cheapflights users on 8/9. 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.
Thu 9/115:35 pmORD - DFW
Nonstop2h 51mFrontier
Mon 9/159:27 pmDFW - ORD
Nonstop2h 31mFrontier
Deal found 8/9$114
This Cheapflightsfares deal was found by Cheapflights users on 8/10. 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.
Thu 8/286:00 amORD - DEN
Nonstop2h 48mFrontier
Thu 9/48:30 pmDEN - ORD
Nonstop2h 29mFrontier
Deal found 8/10$114
This Cheapflightsfares deal was found by Cheapflights users on 8/11. 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.
Tue 9/28:12 pmORD - LGA
1 stop12h 48mSpirit Airlines
Sat 9/66:00 amLGA - ORD
1 stop12h 39mSpirit Airlines
Deal found 8/11$115
This Trip.com deal was found by Cheapflights users on 8/9. 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.
Tue 9/306:44 pmORD - DFW
Nonstop2h 55mFrontier
Wed 10/18:00 amDFW - ORD
Nonstop2h 40mFrontier
Deal found 8/9$115

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to North America 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 August 11, 2025.
Use the filters below to find and compare flights from Illinois to North America that are best for you.

Fly from

Illinois

Fly to

North America

Route

Depart

Return

Price

ChicagoDallas

ORD - DFW

ORDDFW

Chicago O'Hare Intl

Thu 9/4

5:35 pm-8:26 pm

Nonstop2h 51m

Dallas/Fort Worth

Sat 9/6

9:27 pm-11:58 pm

Nonstop2h 31m

$108

ChicagoDallas

ORD - DFW

ORDDFW

Chicago O'Hare Intl

Fri 10/10

5:25 am-7:58 am

Nonstop2h 33m

Dallas/Fort Worth

Mon 10/13

10:49 pm-1:24 am

Nonstop2h 35m

$109

ChicagoDallas

ORD - DFW

ORDDFW

Chicago O'Hare Intl

Sat 9/6

5:30 pm-8:21 pm

Nonstop2h 51m

Dallas/Fort Worth

Tue 9/16

8:00 am-10:40 am

Nonstop2h 40m

$110

ChicagoDallas

ORD - DFW

ORDDFW

Chicago O'Hare Intl

Tue 9/23

6:44 pm-9:39 pm

Nonstop2h 55m

Dallas/Fort Worth

Tue 9/30

8:00 am-10:40 am

Nonstop2h 40m

$111

ChicagoDallas

ORD - DFW

ORDDFW

Chicago O'Hare Intl

Wed 8/27

5:27 pm-8:16 pm

Nonstop2h 49m

Dallas/Fort Worth

Sun 8/31

9:21 pm-12:01 am

Nonstop2h 40m

$112

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Thu 9/11

6:00 am-7:45 am

Nonstop2h 45m

Denver Intl

Sun 9/14

6:00 am-9:37 am

Nonstop2h 37m

$112

ChicagoDallas

ORD - DFW

ORDDFW

Chicago O'Hare Intl

Thu 9/25

5:35 pm-8:26 pm

Nonstop2h 51m

Dallas/Fort Worth

Sat 9/27

9:27 pm-11:58 pm

Nonstop2h 31m

$113

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Thu 10/9

6:50 am-8:31 am

Nonstop2h 41m

Denver Intl

Thu 10/16

8:22 pm-11:53 pm

Nonstop2h 31m

$113

ChicagoNew York

ORD - LGA

ORDLGA

Chicago O'Hare Intl

Tue 9/2

8:12 pm-10:00 am

1 stop12h 48m

New York LaGuardia

Sat 9/6

6:00 am-5:39 pm

1 stop12h 39m

$115

ChicagoNew York

ORD - LGA

ORDLGA

Chicago O'Hare Intl

Sat 9/20

4:35 pm-7:41 pm

Nonstop2h 06m

New York LaGuardia

Mon 9/22

10:59 am-10:48 pm

1 stop12h 49m

$116

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/10

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to North America

Have a flexible travel schedule? Discover the best time to fly to North America 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 North America

What is the cheapest month to book a flight from Illinois to North America?

Currently, January is the cheapest month in which you can book a flight from Illinois to North America (average of $246). Flying from Illinois to North America in March is currently the most expensive (average of $326). 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 NA?

Find hourly flight availability from Illinois to North America. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 11, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to North America as you normally would.

Weekly flight availability from Illinois to North America

Explore weekly flight availability from Illinois to North America. 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 August 11, 2025.

The most flights from USIL to 0NA are scheduled on a Friday (126 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (86 on average).

Reviews of airlines servicing North America

Get insights into the airlines that provide service to North America. 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 North America. Reviews last updated August 11, 2025.
See what other customers who have flown with Delta, Alaska Airlines, and Southwest from Illinois to North America have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,978 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Delta
8.0
Very good
7,978 reviews
Delta
8.0
Very good
7,978 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Alaska Airlines
8.0
Very good
10,000 reviews
Delta
8.0
Very good
7,978 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Southwest
8.0
Very good
4,246 reviews
Delta
8.0
Very good
7,978 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Hawaiian Airlines
7.8
Good
2,647 reviews
Delta
8.0
Very good
7,978 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Aeromexico
7.5
Good
1,724 reviews
Delta
8.0
Very good
7,978 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Related info for your journey

Find useful and relevant information for your journey from Illinois to North America. 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 Illinois to North America one-way?

    The cheapest airlines for a one-way flight from Illinois to North America are Frontier ($65), Spirit Airlines ($67), and Delta ($78).

  • Can I find deals for flights from Illinois to North America that include hotel bookings?

    Yes. In addition to deals on Illinois to North America flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to North America?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to North America.

  • Can I find deals for business class flights from Illinois to North America?

    Yes. Cheapflights offers flight deals from Illinois to North America 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 Illinois to North America?

    Currently, January is the cheapest month in which you can book a flight from Illinois to North America (average of $246). Flying from Illinois to North America in March is currently the most expensive (average of $326). 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

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Alternative routes for Illinois to North America

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Illinois to North America

Discover the top 10 airlines that operate flights from Illinois to North America. 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 August 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$33Average$176FlexibilityNo cancel feeOn-time65%
FrontierCheapest$50Average$190FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$77Average$201FlexibilityNo cancel feeOn-time62%
Breeze AirwaysCheapest$78Average$135FlexibilityNo cancel feeOn-timeN/A
Allegiant AirCheapest$81Average$201FlexibilityNo cancel feeOn-time88%
DeltaCheapest$88Average$345FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$108Average$217FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$121Average$423FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$127Average$404FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$144Average$341FlexibilityNo cancel feeOn-time63%

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