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$123+ 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 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — CHI
Apr 21 — Apr 281
Tue 4/21
Tue 4/28
1 adult, Economy
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Cheapflights Tip: The best prices from Allentown-Bethlehem to Chicago are usually found in October or December, booked 38 days in advance, depart on a Friday or Saturday and return on a Saturday

Cheap 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 March 22, 2026.

This United Airlines deal was found by Cheapflights users on 3/22. 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 4/175:43 pm
ABE
-
ORD
Nonstop2h 22m
United Airlines
Sat 4/186:10 pm
ORD
-
ABE
Nonstop2h 07m
United Airlines
Deal found 3/22$269
This United Airlines deal was found by Cheapflights users on 3/19. 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.
Sun 4/266:15 am
ABE
-
ORD
Nonstop2h 25m
United Airlines
Wed 5/610:30 am
ORD
-
ABE
Nonstop2h 08m
United Airlines
Deal found 3/19$278
This United Airlines deal was found by Cheapflights users on 3/21. 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.
Thu 8/62:23 pm
ABE
-
ORD
Nonstop2h 29m
United Airlines
Tue 8/117:00 am
ORD
-
ABE
Nonstop2h 06m
United Airlines
Deal found 3/21$281
This United Airlines deal was found by Cheapflights users on 3/19. 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.
Thu 8/62:23 pm
ABE
-
ORD
Nonstop2h 29m
United Airlines
Mon 8/1010:32 am
ORD
-
ABE
Nonstop2h 16m
United Airlines
Deal found 3/19$284
This American Airlines deal was found by Cheapflights users on 3/20. 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.
Tue 6/235:06 pm
ABE
-
ORD
Nonstop2h 28m
American Airlines
Tue 6/301:32 pm
ORD
-
ABE
Nonstop2h 04m
American Airlines
Deal found 3/20$287
This United Airlines deal was found by Cheapflights users on 3/20. 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 8/72:23 pm
ABE
-
ORD
Nonstop2h 29m
United Airlines
Mon 8/1010:32 am
ORD
-
ABE
Nonstop2h 16m
United Airlines
Deal found 3/20$288
This Delta deal was found by Cheapflights users on 3/20. 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.
Sat 5/25:59 pm
ABE
-
ORD
1 stop7h 00m
Delta
Tue 5/58:15 am
ORD
-
ABE
1 stop8h 04m
Delta
Deal found 3/20$289
This Delta deal was found by Cheapflights users on 3/21. 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.
Wed 4/155:59 pm
ABE
-
MDW
1 stop5h 29m
Delta
Sat 4/186:00 am
MDW
-
ABE
1 stop5h 12m
Delta
Deal found 3/21$289
This Kiwi.com deal was found by Cheapflights users on 3/20. 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.
Sat 4/187:01 pm
ABE
-
MDW
1 stop14h 25m
Multiple Airlines
Wed 4/222:15 pm
MDW
-
ABE
2 stops23h 41m
Multiple Airlines
Deal found 3/20$292
This Delta deal was found by Cheapflights users on 3/20. 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.
Wed 10/146:30 am
ABE
-
ORD
1 stop6h 36m
Delta
Sat 10/1710:35 am
ORD
-
ABE
2 stops11h 11m
Delta
Deal found 3/20$294
This Delta deal was found by Cheapflights users on 3/22. 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.
Sat 5/25:59 pm
ABE
-
MDW
1 stop5h 29m
Delta
Tue 5/59:27 am
MDW
-
ABE
2 stops6h 52m
Delta
Deal found 3/22$294
This United Airlines deal was found by Cheapflights users on 3/19. 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 4/105:43 pm
ABE
-
ORD
Nonstop2h 22m
United Airlines
Sat 4/182:00 pm
ORD
-
ABE
Nonstop2h 05m
United Airlines
Deal found 3/19$295

Find 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 March 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$258
(Kiwi.com)

One-way from

$123
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$378

Good round-trip deal

$337 or less

Good one-way deal

$274 or less
Provider with most accurate pricing for Allentown-Bethlehem-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Allentown-Bethlehem-Chicago (CHI) flights.
Search Deals
From Allentown-Bethlehem to Chicago (CHI)
Search Deals
One-way flight from Allentown-Bethlehem to Chicago (CHI)
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($36 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Allentown-Bethlehem to Chicago (CHI).
Search Deals
Price to beat on a one-way flight from Allentown-Bethlehem to Chicago (CHI).
Search Deals

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 March 22, 2026.
Use the filters below to find and compare flights from Allentown to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AllentownChicago

ABE - MDW

ABEMDW

Allentown-Bethlehem

Wed 7/22

6:20 am-12:33 pm

2 stops7h 13m

Chicago Midway

Sat 7/25

6:05 am-12:22 pm

1 stop5h 17m

$294

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Wed 5/20

6:15 pm-11:59 pm

1 stop6h 44m

Chicago O'Hare Intl

Tue 5/26

9:25 am-10:18 pm

2 stops11h 53m

$314

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Thu 8/6

1:00 pm-8:18 pm

1 stop8h 18m

Chicago O'Hare Intl

Sun 8/9

6:00 am-12:10 pm

1 stop5h 10m

$329

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Wed 7/1

1:00 pm-8:24 pm

2 stops8h 24m

Chicago O'Hare Intl

Tue 7/7

6:00 am-12:10 pm

1 stop5h 10m

$335

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Thu 9/17

6:30 am-11:10 am

1 stop5h 40m

Chicago O'Hare Intl

Sun 9/20

6:00 am-12:08 pm

1 stop5h 08m

$344

AllentownChicago

ABE - MDW

ABEMDW

Allentown-Bethlehem

Thu 4/30

5:59 pm-10:28 pm

1 stop5h 29m

Chicago Midway

Sat 5/2

1:24 pm-11:00 pm

2 stops8h 36m

$347
Quickest round-trip

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Fri 4/17

5:43 pm-7:05 pm

Nonstop2h 22m

Chicago O'Hare Intl

Sun 4/19

6:50 am-9:48 am

Nonstop1h 58m

$349

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Sat 7/11

1:08 pm-8:33 pm

1 stop8h 25m

Chicago O'Hare Intl

Sat 7/18

7:01 am-5:25 pm

2 stops9h 24m

$369

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Fri 7/3

6:20 am-5:02 pm

2 stops11h 42m

Chicago O'Hare Intl

Thu 7/9

8:52 am-10:27 pm

2 stops12h 35m

$372

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Fri 4/3

5:43 pm-7:05 pm

Nonstop2h 22m

Chicago O'Hare Intl

Mon 4/6

6:50 am-9:48 am

Nonstop1h 58m

$379

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/20

Showing 1-10 of 46 resultsSorted by cheapest first
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Compare providers for flights from Allentown to Chicago

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Allentown to Chicago in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Allentown-Chicago flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Allentown-Chicago flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Allentown-Chicago flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Allentown-Chicago flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Allentown-Chicago flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 March 13, 2026.

To ensure you get the cheapest price possible for a flight from Allentown to Chicago, you should look to book at least 38 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, December is the cheapest month in which you can book a flight from Allentown to Chicago (average of $48). Flying from Allentown to Chicago in July is currently the most expensive (average of $116). 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 March 22, 2026.

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

Weekly flight availability from Allentown to Chicago

Explore weekly flight availability from Allentown to Chicago. 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 March 22, 2026.

The most flights from ABE to CHI are scheduled on a Monday (6 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 on average).

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 March 22, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andAmerican 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.
Delta
7.9
Good
8,314 reviews

Overall

7.9

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.9

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,314 reviews
Delta
7.9
Good
8,314 reviews

Overall

7.9

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.9

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,455 reviews
Delta
7.9
Good
8,314 reviews

Overall

7.9

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.9

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.1
Good
11,489 reviews
Delta
7.9
Good
8,314 reviews

Overall

7.9

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.9

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 5 outbound flights to Chicago per day.

  • How long is the flight from Allentown to Chicago?

    United Airlines and Delta can get you from Allentown to Chicago in just under 2h 22m. Your travel time can differ by up to 4h 02m. Allentown and Chicago are separated by a distance of 652 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 United Airlines and Delta. Users have found that American Airlines is 44% cheaper than the other options available to this destination.

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

    Consider Emirates (100%), GoJet (75%) or United Airlines (68%) 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 $520, our data indicates the cheapest price to be $143. The most popular route (Allentown-Bethlehem - Chicago O'Hare Intl), is priced around $269.

  • 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, December is the cheapest month in which you can book a flight from Allentown to Chicago (average of $48). Flying from Allentown to Chicago in July is currently the most expensive (average of $116). 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
Lansing
Merrillville
Hammond
Porter
Benton Harbor

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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 March 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$196Average$288FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$209Average$455FlexibilityNo cancel feeOn-time69%
DeltaCheapest$229Average$633FlexibilityNo cancel feeOn-timeN/A

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