HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Chicago

$127+ 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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — CHI
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Allentown to Chicago 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.
Cheapflights Tip: The best prices from Allentown-Bethlehem to Chicago are usually found in February or January, booked 21 days in advance, depart on a Saturday or Friday 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 February 3, 2026.

This United Airlines deal was found by Cheapflights users on 2/2. 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.
Wed 3/186:51 pm
ABE
-
ORD
Nonstop2h 29m
United Airlines
Tue 3/247:00 am
ORD
-
ABE
Nonstop1h 56m
United Airlines
Deal found 2/2$209
This American Airlines deal was found by Cheapflights users on 2/1. 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 8/46:00 am
ABE
-
ORD
Nonstop2h 21m
American Airlines
Tue 8/115:20 am
ORD
-
ABE
1 stop7h 06m
American Airlines
Deal found 2/1$219
This American Airlines deal was found by Cheapflights users on 2/1. 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 2/247:41 am
ABE
-
ORD
1 stop7h 35m
American Airlines
Sun 3/15:00 am
ORD
-
ABE
1 stop5h 30m
American Airlines
Deal found 2/1$229
This Delta deal was found by Cheapflights users on 2/2. 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 3/45:58 pm
ABE
-
MDW
1 stop5h 33m
Delta
Wed 3/116:00 am
MDW
-
ABE
1 stop5h 16m
Delta
Deal found 2/2$229
This Delta deal was found by Cheapflights users on 2/1. 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.
Tue 3/36:28 am
ABE
-
ORD
2 stops11h 13m
Delta
Tue 3/1011:10 am
ORD
-
ABE
1 stop5h 07m
Delta
Deal found 2/1$234
This Delta deal was found by Cheapflights users on 2/2. 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.
Tue 2/175:58 pm
ABE
-
ORD
1 stop6h 58m
Delta
Mon 2/239:48 am
ORD
-
ABE
1 stop6h 24m
Delta
Deal found 2/2$249
This United Airlines deal was found by Cheapflights users on 2/1. 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 4/236:15 am
ABE
-
ORD
Nonstop2h 25m
United Airlines
Tue 4/287:00 am
ORD
-
ABE
Nonstop1h 58m
United Airlines
Deal found 2/1$250
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Wed 3/46:28 am
ABE
-
ORD
Nonstop2h 32m
United Airlines
Wed 3/117:00 am
ORD
-
ABE
Nonstop1h 56m
United Airlines
Deal found 2/2$251
This United Airlines deal was found by Cheapflights users on 2/2. 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 3/126:20 am
ABE
-
ORD
Nonstop2h 32m
United Airlines
Sat 3/147:00 am
ORD
-
ABE
Nonstop1h 56m
United Airlines
Deal found 2/2$252
This Delta deal was found by Cheapflights users on 2/1. 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 2/1$254
This Delta deal was found by Cheapflights users on 2/1. 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.
Tue 3/36:28 am
ABE
-
MDW
1 stop6h 31m
Delta
Tue 3/101:10 pm
MDW
-
ABE
2 stops8h 46m
Delta
Deal found 2/1$254
This United Airlines deal was found by Cheapflights users on 2/2. 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 2/146:28 am
ABE
-
ORD
Nonstop2h 32m
United Airlines
Wed 2/257:00 am
ORD
-
ABE
Nonstop2h 01m
United Airlines
Deal found 2/2$264

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 February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$209
(United Airlines)

One-way from

$127
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$288

Good round-trip deal

$339 or less

Good one-way deal

$261 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. 14% potential increase in price ($62 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 February 3, 2026.
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

Wed 4/22

5:38 pm-7:00 pm

Nonstop2h 22m

Chicago O'Hare Intl

Mon 4/27

7:00 am-9:58 am

Nonstop1h 58m

$209

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Tue 3/3

5:23 pm-6:55 pm

Nonstop2h 32m

Chicago O'Hare Intl

Tue 3/10

7:00 am-9:56 am

Nonstop1h 56m

$209

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Wed 3/18

6:51 pm-8:20 pm

Nonstop2h 29m

Chicago O'Hare Intl

Tue 3/24

7:00 am-9:56 am

Nonstop1h 56m

$209

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Tue 3/3

6:28 am-4:41 pm

2 stops11h 13m

Chicago O'Hare Intl

Tue 3/10

11:10 am-5:17 pm

1 stop5h 07m

$234

AllentownChicago

ABE - MDW

ABEMDW

Allentown-Bethlehem

Wed 3/18

5:58 pm-10:31 pm

1 stop5h 33m

Chicago Midway

Tue 3/24

1:10 pm-10:56 pm

2 stops8h 46m

$234

AllentownChicago

ABE - MDW

ABEMDW

Allentown-Bethlehem

Wed 3/4

5:58 pm-10:31 pm

1 stop5h 33m

Chicago Midway

Wed 3/11

1:10 pm-10:56 pm

2 stops8h 46m

$234

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Sat 3/7

5:58 pm-11:56 pm

1 stop6h 58m

Chicago O'Hare Intl

Mon 3/9

9:50 am-5:17 pm

1 stop6h 27m

$249

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Thu 2/19

10:36 am-12:10 pm

Nonstop2h 34m

Chicago O'Hare Intl

Sat 2/21

8:45 am-11:50 am

Nonstop2h 05m

$249

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Wed 5/6

5:59 pm-11:59 pm

1 stop7h 00m

Chicago O'Hare Intl

Sat 5/16

9:10 am-5:23 pm

1 stop7h 13m

$249

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Fri 5/29

6:16 pm-11:59 pm

1 stop6h 43m

Chicago O'Hare Intl

Sat 6/6

9:10 am-5:23 pm

1 stop7h 13m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 39 results
1
2
3
4

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 February.
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 January 30, 2026.

To ensure you get the cheapest price possible for a flight from Allentown to Chicago, you should look to book at least 21 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 $119). 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 February 3, 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 February 3, 2026.

The most flights from ABE to CHI are scheduled on a Monday (6 on average). You will have fewer flight options on Wednesday, 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 February 3, 2026.
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
9,236 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
United Airlines
7.4
Good
9,236 reviews
United Airlines
7.4
Good
9,236 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
American Airlines
7.2
Good
11,216 reviews
United Airlines
7.4
Good
9,236 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.

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 8h 51m. 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 46% cheaper than the other options available to this destination.

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

    Consider Emirates (100%), GoJet (78%) or United Airlines (69%) 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 $413, our data indicates the cheapest price to be $206. The most popular route (Allentown-Bethlehem - Chicago O'Hare Intl), is priced around $209.

  • 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 $119). 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

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 Allentown to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to O'Hare Intl flights
LaGuardia to O'Hare Intl flights
Newark to O'Hare Intl flights
Dulles Intl to O'Hare Intl flights
Reagan-National to O'Hare Intl flights
Philadelphia to O'Hare Intl flights
John F Kennedy Intl to Midway flights
Dulles Intl to Midway flights
Newark to Midway flights
LaGuardia to St. Louis flights
LaGuardia to Midway flights
Newark to St. Louis flights
Reagan-National to Midway flights
Dulles Intl to St. Louis flights
John F Kennedy Intl to St. Louis flights
Philadelphia to Midway flights
Pittsburgh to O'Hare Intl flights
Reagan-National to St. Louis flights
Philadelphia to St. Louis flights
Harrisburg to O'Hare Intl flights
Pittsburgh to Midway flights
Allentown to O'Hare Intl flights
State College to O'Hare Intl flights
Scranton to O'Hare Intl flights
Pittsburgh to St. Louis flights
Harrisburg to Midway flights
Allentown to Midway flights
Harrisburg to St. Louis flights
Dulles Intl to Peoria flights
Reagan-National to Champaign flights
Reagan-National to Peoria flights
LaGuardia to Evansville flights
State College to St. Louis flights
Allentown to St. Louis flights
Newark to Evansville flights
John F Kennedy Intl to Evansville flights
LaGuardia to Moline flights
Harrisburg to Moline flights
Philadelphia to Moline flights
Dulles Intl to Moline flights
Newark to Champaign flights
Reagan-National to Bloomington flights
Newark to Peoria flights
John F Kennedy Intl to Champaign flights
Erie to O'Hare Intl flights
Newark to Moline flights
LaGuardia to Peoria flights
Pittsburgh to Moline flights
Dulles Intl to Evansville flights
Philadelphia to Peoria flights

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 February 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$196Average$279FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$210Average$478FlexibilityNo cancel feeOn-time69%
DeltaCheapest$229Average$633FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.