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$80+ Cheap flights from Allentown (ABE) to Chicago (CHI)

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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — CHI
août 19 — août 261
mar. 8/19
mar. 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Allentown-Bethlehem to Chicago are usually found in January or February, booked 69 days in advance, depart on a Saturday or Friday and return on a Saturday

Cheap flight deals from Allentown to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Allentown (ABE) to Chicago (CHI). 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 août 14, 2025.

Round-trip from

$159
(American Airlines)

One-way from

$80
(American Airlines)

Popular in

June

Cheapest in

January

Average price

$397

Good round-trip deal

$488 or less

Good one-way deal

$383 or less
From Allentown-Bethlehem to Chicago (CHI)
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One-way flight from Allentown-Bethlehem to Chicago (CHI)
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Highest demand for flights based on searches. 9% potential increase in price ($43 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 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 Allentown-Bethlehem to Chicago (CHI).
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Price to beat on a one-way flight from Allentown-Bethlehem to Chicago (CHI).
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Find flight deals from Allentown to Chicago

Cheapest flights from Allentown to Chicago
Explore the most affordable flight options available from Allentown to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on août 14, 2025.

This American Airlines deal was found by Cheapflights users on 8/13. 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.
mar. 9/167:00 pmABE - ORD
1 stop5h 12mAmerican Airlines
sam. 9/209:51 amORD - ABE
1 stop7h 10mAmerican Airlines
Deal found 8/13$159
This American Airlines deal was found by Cheapflights users on 8/13. 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.
mer. 9/32:37 pmABE - ORD
1 stop6h 50mAmerican Airlines
mer. 9/109:51 amORD - ABE
1 stop7h 39mAmerican Airlines
Deal found 8/13$189
This American Airlines deal was found by Cheapflights users on 8/13. 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.
mer. 10/12:37 pmABE - ORD
1 stop6h 50mAmerican Airlines
dim. 10/55:00 amORD - ABE
1 stop7h 00mAmerican Airlines
Deal found 8/13$204
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
dim. 10/512:14 pmABE - ORD
1 stop11h 32mMultiple Airlines
mer. 10/87:29 pmORD - ABE
1 stop12h 25mMultiple Airlines
Deal found 8/13$214
This American Airlines deal was found by Cheapflights users on 8/14. 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.
lun. 9/87:00 pmABE - ORD
1 stop5h 12mAmerican Airlines
mar. 9/97:02 amORD - ABE
1 stop6h 03mAmerican Airlines
Deal found 8/14$219
This American Airlines deal was found by Cheapflights users on 8/14. 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.
sam. 10/46:35 pmABE - ORD
1 stop5h 37mAmerican Airlines
lun. 10/67:10 amORD - ABE
1 stop5h 16mAmerican Airlines
Deal found 8/14$223
This American Airlines deal was found by Cheapflights users on 8/14. 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.
ven. 9/197:00 pmABE - ORD
1 stop5h 12mAmerican Airlines
dim. 9/217:02 amORD - ABE
1 stop4h 58mAmerican Airlines
Deal found 8/14$224
This American Airlines deal was found by Cheapflights users on 8/14. 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.
jeu. 9/117:59 pmABE - ORD
1 stop4h 40mAmerican Airlines
dim. 9/145:00 amORD - ABE
1 stop7h 00mAmerican Airlines
Deal found 8/14$229
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
lun. 9/298:30 amABE - ORD
1 stop12h 14mMultiple Airlines
lun. 10/68:49 pmORD - ABE
1 stop11h 37mMultiple Airlines
Deal found 8/13$230
This American Airlines deal was found by Cheapflights users on 8/14. 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.
mer. 8/276:00 amABE - ORD
1 stop5h 35mAmerican Airlines
sam. 9/139:51 amORD - ABE
1 stop7h 10mAmerican Airlines
Deal found 8/14$234
This American Airlines deal was found by Cheapflights users on 8/14. 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.
sam. 10/185:53 pmABE - ORD
1 stop7h 00mAmerican Airlines
dim. 10/197:10 amORD - ABE
1 stop5h 16mAmerican Airlines
Deal found 8/14$238
This American Airlines deal was found by Cheapflights users on 8/13. 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.
mer. 8/276:00 amABE - ORD
1 stop4h 49mAmerican Airlines
mar. 9/26:03 amORD - ABE
1 stop7h 23mAmerican Airlines
Deal found 8/13$239

Cheapflights Fare Finder

 
Customize your flight search to find flights from Allentown to Chicago 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 août 14, 2025.
Use the filters below to find and compare flights from Allentown to Chicago that are best for you.

Fly from

Allentown

Fly to

Chicago

Route

Depart

Return

Price

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

mar. 9/16

7:00 pm-11:12 pm

1 stop5h 12m

Chicago O'Hare Intl

sam. 9/20

9:51 am-6:01 pm

1 stop7h 10m

$159

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

mer. 9/3

2:37 pm-8:27 pm

1 stop6h 50m

Chicago O'Hare Intl

mer. 9/10

9:51 am-6:30 pm

1 stop7h 39m

$189

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

mar. 9/9

7:00 pm-11:12 pm

1 stop5h 12m

Chicago O'Hare Intl

mer. 9/10

9:51 am-6:30 pm

1 stop7h 39m

$189

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

mer. 10/1

2:37 pm-8:27 pm

1 stop6h 50m

Chicago O'Hare Intl

dim. 10/5

5:00 am-1:00 pm

1 stop7h 00m

$204

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

dim. 10/5

12:14 pm-10:46 pm

1 stop11h 32m

Chicago O'Hare Intl

mer. 10/8

7:29 pm-8:54 am

1 stop12h 25m

$214

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

dim. 10/5

12:14 pm-10:46 pm

1 stop11h 32m

Chicago O'Hare Intl

lun. 10/6

8:49 pm-9:26 am

1 stop11h 37m

$219

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

ven. 9/12

7:00 pm-11:12 pm

1 stop5h 12m

Chicago O'Hare Intl

lun. 9/15

7:02 am-2:05 pm

1 stop6h 03m

$219

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

mer. 9/10

7:00 pm-11:12 pm

1 stop5h 12m

Chicago O'Hare Intl

jeu. 9/11

5:00 am-1:00 pm

1 stop7h 00m

$219

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

lun. 9/8

7:00 pm-11:12 pm

1 stop5h 12m

Chicago O'Hare Intl

mar. 9/9

7:02 am-2:05 pm

1 stop6h 03m

$219

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

sam. 10/4

6:35 pm-11:12 pm

1 stop5h 37m

Chicago O'Hare Intl

lun. 10/6

7:10 am-1:26 pm

1 stop5h 16m

$223

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 37 results
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Best time to book a flight from Allentown to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from Allentown 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 Allentown to Chicago

How far ahead should I book a flight from Allentown to Chicago?

Use this chart to determine the optimal time to book a round-trip flight from Allentown to Chicago. Price data was last updated on August 8, 2025.

To ensure you get the cheapest price possible for a flight from Allentown to Chicago, you should look to book at least 69 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Allentown to Chicago?

Currently, August is the cheapest month in which you can book a flight from Allentown to Chicago (average of $245). Flying from Allentown to Chicago 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 ABE to CHI?

Find hourly flight availability from Allentown to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated août 14, 2025.

When flying from Allentown to Chicago, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 53% versus a flight in the morning.

How much does it cost to fly round-trip from Allentown to Chicago?

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated août 14, 2025.
Get a feel of what it's like to fly with United Airlines and American Airlines from Allentown to Chicago by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,916 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Food

6.6

Boarding

7.7

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,916 reviews
United Airlines
7.4
Good
8,916 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Food

6.6

Boarding

7.7

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,916 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Food

6.6

Boarding

7.7

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Allentown to Chicago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Allentown to Chicago?

    Allentown-Bethlehem (ABE), located 3.9 mi from the city center, is the airport you fly out of when you book flights from Allentown to Chicago. 3 airlines have flights from Allentown-Bethlehem to Chicago on a regular basis. Booking flights from Allentown-Bethlehem to Chicago should not be difficult; the airport handles an average of 3 outbound flights to Chicago per day.

  • What are the cheapest airlines flying from Allentown to Chicago round-trip?

    American Airlines, at $196, was found to be the cheapest airline from Allentown to Chicago.Alternate airlines to your destination round-trip include Delta and United Airlines. Users have found that American Airlines is 50% cheaper than the other options available to this destination.

  • What are the most reliable airlines from Allentown to Chicago?

    Consider GoJet (67%), United Airlines (67%) or Air New Zealand (67%) when booking your flight. These represent the most reliable airlines when flying from Allentown to Chicago.

  • What are the cheapest flights from Allentown to Chicago?

    Looking for the cheapest flight from Allentown to Chicago? While on average our users pay $827, our data indicates the cheapest price to be $306. The most popular route (Allentown-Bethlehem - Chicago O'Hare Intl), is priced around $229.

  • Can I find deals for flights from Allentown to Chicago that include hotel bookings?

    Yes. In addition to deals on Allentown to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Allentown to Chicago?

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

  • Can I find deals for business class flights from Allentown to Chicago?

    Yes. Cheapflights offers flight deals from Allentown to Chicago 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 Allentown to Chicago?

    Currently, August is the cheapest month in which you can book a flight from Allentown to Chicago (average of $245). Flying from Allentown to Chicago 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.

See more FAQs

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
Lansing
Hammond
Benton Harbor
Porter
Chesterton

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Alternative routes for Allentown to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Allentown to Chicago

Discover the top 3 airlines that operate flights from Allentown to Chicago. 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 août 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$196Average$285FlexibilityNo cancel feeOn-time71%
DeltaCheapest$228Average$419FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$270Average$496FlexibilityNo cancel feeOn-time69%

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