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Cheap flights from Allentown to Chicago from $139

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Allentown to Chicago departing on 11/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

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American Airlines Logo
1:46 pm - 7:18 pmABE-ORD
6h 32m1 stop
American Airlines Logo
6:45 am - 1:18 pmORD-ABE
5h 33m1 stop
$229American Airlines
Find Deal
Wed, Nov 12 - Mon, Dec 15
Delta Logo
6:00 pm - 11:58 pmABE-ORD
6h 58m1 stop
Delta Logo
10:46 am - 10:12 pmORD-ABE
10h 26m2 stops
$234Delta
Find Deal
Sat, Nov 8 - Tue, Nov 18
United Airlines Logo
1:00 pm - 2:33 pmABE-ORD
2h 33mnonstop
United Airlines Logo
1:43 pm - 4:47 pmORD-ABE
2h 04mnonstop
$236United Airlines
Find Deal
Thu, Nov 13 - Sat, Nov 15
American Airlines Logo
5:10 pm - 11:58 pmABE-ORD
7h 48m1 stop
American Airlines Logo
2:03 pm - 10:52 pmORD-ABE
7h 49m1 stop
$239American Airlines
Find Deal
Sat, Nov 8 - Fri, Nov 14
Multiple Airlines Logo
7:30 am - 9:36 amABE-ORD
27h 06m1 stop
Multiple Airlines Logo
4:03 pm - 11:24 amORD-ABE
42h 21m2 stops
$244Multiple Airlines
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Sun, Oct 26 - Tue, Oct 28
Delta Logo
6:00 pm - 11:58 pmABE-ORD
6h 58m1 stop
Delta Logo
5:20 am - 12:06 pmORD-ABE
5h 46m1 stop
$249Delta
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Sat, Oct 25 - Sun, Oct 26
United Airlines Logo
5:22 pm - 6:55 pmABE-ORD
2h 33mnonstop
United Airlines Logo
8:45 am - 11:48 amORD-ABE
2h 03mnonstop
$256United Airlines
Find Deal
Wed, Oct 29 - Sun, Nov 2
Multiple Airlines Logo
7:30 am - 9:36 amABE-ORD
27h 06m1 stop
Multiple Airlines Logo
11:08 am - 2:03 pmORD-ABE
25h 55m2 stops
$258Multiple Airlines
Find Deal
Sun, Oct 26 - Wed, Oct 29
United Airlines Logo
6:30 am - 7:58 amABE-ORD
2h 28mnonstop
United Airlines Logo
6:30 pm - 9:41 pmORD-ABE
2h 11mnonstop
$259United Airlines
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Fri, Oct 24 - Mon, Oct 27
Multiple Airlines Logo
8:37 pm - 12:26 pmABE-ORD
16h 49m1 stop
Multiple Airlines Logo
12:09 pm - 6:07 pmORD-ABE
28h 58m1 stop
$264Multiple Airlines
Find Deal
Wed, Nov 12 - Tue, Dec 16

American Airlines flights from Allentown to Chicago O'Hare Intl Airport

Our best American Airlines deals on Allentown to Chicago O'Hare Intl Airport flight tickets
American Airlines
Nov 12
ABE1:46 pmAllentown-Bethlehem
6h 32m
1 stop
ORD7:18 pmChicago O'Hare Intl
Dec 15
ORD6:45 amChicago O'Hare Intl
5h 33m
1 stop
ABE1:18 pmAllentown-Bethlehem
$229
Find similar
American Airlines
Nov 8
ABE5:10 pmAllentown-Bethlehem
7h 48m
1 stop
ORD11:58 pmChicago O'Hare Intl
Nov 14
ORD2:03 pmChicago O'Hare Intl
7h 49m
1 stop
ABE10:52 pmAllentown-Bethlehem
$239
Find similar
American Airlines
Nov 13
ABE5:10 pmAllentown-Bethlehem
7h 30m
1 stop
ORD11:40 pmChicago O'Hare Intl
Nov 20
ORD7:11 amChicago O'Hare Intl
5h 18m
1 stop
ABE1:29 pmAllentown-Bethlehem
$269
Find similar

Delta flights from Allentown to Chicago O'Hare Intl Airport

Our best Delta deals on Allentown to Chicago O'Hare Intl Airport flight tickets
Delta
Nov 8
ABE6:00 pmAllentown-Bethlehem
6h 58m
1 stop
ORD11:58 pmChicago O'Hare Intl
Nov 18
ORD10:46 amChicago O'Hare Intl
10h 26m
2 stops
ABE10:12 pmAllentown-Bethlehem
$234
Find similar
Delta
Oct 25
ABE6:00 pmAllentown-Bethlehem
6h 58m
1 stop
ORD11:58 pmChicago O'Hare Intl
Oct 26
ORD5:20 amChicago O'Hare Intl
5h 46m
1 stop
ABE12:06 pmAllentown-Bethlehem
$249
Find similar
Delta
Feb 14
ABE1:00 pmAllentown-Bethlehem
7h 29m
1 stop
ORD7:29 pmChicago O'Hare Intl
Feb 21
ORD7:00 amChicago O'Hare Intl
9h 13m
2 stops
ABE5:13 pmAllentown-Bethlehem
$274
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Allentown to Chicago O'Hare Intl Airport 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, momondo users made 832,500 searches. Data last updated October 14, 2025.
Use the filters below to find and compare flights from Allentown to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Wed 11/12

1:46 pm-7:18 pm

1 stop6h 32m

Chicago O'Hare Intl

Mon 12/15

6:45 am-1:18 pm

1 stop5h 33m

$229

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Sat 11/8

6:00 pm-11:58 pm

1 stop6h 58m

Chicago O'Hare Intl

Tue 11/18

10:46 am-10:12 pm

2 stops10h 26m

$234

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Thu 11/13

1:00 pm-2:33 pm

Nonstop2h 33m

Chicago O'Hare Intl

Sat 11/15

1:43 pm-4:47 pm

Nonstop2h 04m

$236

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Sat 11/8

5:10 pm-11:58 pm

1 stop7h 48m

Chicago O'Hare Intl

Fri 11/14

2:03 pm-10:52 pm

1 stop7h 49m

$239

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Sun 10/26

7:30 am-9:36 am

1 stop27h 06m

Chicago O'Hare Intl

Tue 10/28

4:03 pm-11:24 am

2 stops42h 21m

$244

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Sat 10/25

6:00 pm-11:58 pm

1 stop6h 58m

Chicago O'Hare Intl

Sun 10/26

5:20 am-12:06 pm

1 stop5h 46m

$249

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Wed 10/29

5:22 pm-6:55 pm

Nonstop2h 33m

Chicago O'Hare Intl

Sun 11/2

8:45 am-11:48 am

Nonstop2h 03m

$256

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Sun 10/26

7:30 am-9:36 am

1 stop27h 06m

Chicago O'Hare Intl

Wed 10/29

11:08 am-2:03 pm

2 stops25h 55m

$258

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Fri 10/24

6:30 am-7:58 am

Nonstop2h 28m

Chicago O'Hare Intl

Mon 10/27

6:30 pm-9:41 pm

Nonstop2h 11m

$259

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Wed 11/12

8:37 pm-12:26 pm

1 stop16h 49m

Chicago O'Hare Intl

Tue 12/16

12:09 pm-6:07 pm

1 stop28h 58m

$264

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Chicago from

How to get the cheapest flight ticket from Allentown to Chicago O'Hare Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Allentown and Chicago O'Hare Intl Airport?

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

The month of January is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Allentown averaging around $339.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Friday when prices can be found for as low as $491. This is often the case because there is less demand to fly during this day of the week. On the other hand, Monday is the most expensive day to depart from Allentown because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $675.

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

Flying to Chicago O'Hare Intl Airport from Allentown in the evening is the least expensive time of day to depart. momondo users have found prices as low as $312 when looking at flights departing in the evening. Try not to purchase tickets in the morning because they tend to be around $592. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Allentown-Bethlehem to Chicago O'Hare Intl flight route?

Fly from Allentown-Bethlehem to Chicago O'Hare Intl for the best Allentown-Bethlehem - Chicago O'Hare Intl flight prices

How far in advance should I book a flight to Chicago O'Hare Intl Airport?

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Allentown when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $431 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Allentown for as low as $317 on momondo.

What cabin class options are available on Allentown-Bethlehem to Chicago O'Hare Intl flights?

There are 4 cabin classes available to choose from on Allentown-Bethlehem to Chicago O'Hare Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Allentown to Chicago O'Hare Intl Airport flights?

You could potentially save up to 61% on your flight if you consider stops on a Allentown to Chicago O'Hare Intl Airport flight.

How have Allentown to Chicago O'Hare Intl Airport flight prices changed over time?

As of October 2025, prices for Allentown to Chicago O'Hare Intl Airport flights are approximately 82% more expensive when compared to flights at the same time last year.

When to book flights from Allentown to Chicago O'Hare Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Allentown to Chicago O'Hare Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Allentown to Chicago O'Hare Intl Airport (ABE to ORD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Allentown to Chicago O'Hare Intl Airport

Best Price Found

$279

Fastest flight time

2h 27m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from Allentown in the past 72 hours is $279. The best round-trip flight deal from Allentown to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $296.
The fastest flight from Allentown to Chicago O'Hare Intl Airport takes 2h 27m
Direct flights go from Allentown to Chicago O'Hare Intl Airport every day.
Search flight deals

  • How far is Allentown-Bethlehem to Chicago O'Hare Intl by plane?

    Allentown-Bethlehem and Chicago O'Hare Intl are 651.5 mi apart from one another. In terms of flight time, this usually takes a little over 2h 27m.

  • When did momondo last update prices for flights from Allentown-Bethlehem Airport to Chicago O'Hare Intl Airport?

    Prices for flights from Allentown-Bethlehem Airport to Chicago O'Hare Intl Airport are updated daily.

  • How many operators does momondo search for flights from Allentown-Bethlehem Airport to Chicago O'Hare Intl Airport?

  • How old do you have to be to fly from Allentown-Bethlehem Airport to Chicago O'Hare Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Allentown-Bethlehem Airport to Chicago O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

    The necessary travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Allentown to Chicago O'Hare Intl Airport?

  • What is the most popular airline from Allentown to Chicago O'Hare Intl Airport?

Best airlines flying from Allentown to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Allentown to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $196Free CancellationRating
7.2
11,042 reviews
Search American Airlines flights
United AirlinesPriceFrom $210Free CancellationRating
7.4
8,976 reviews
Search United Airlines flights

  • United Airlines Flights From Allentown to Chicago O'Hare Intl Airport

    United Airlines flight deals from Allentown to Chicago O'Hare Intl Airport start from $210 round-trip. Over the 21 United Airlines flights for this route in a normal week, average airfare is usually $488 round-trip - but some users have found much cheaper deals with momondo.

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lake Geneva
South Haven
Schaumburg
Rockford
Merrillville
Gurnee
Naperville
Rosemont
Kenosha
New Buffalo
Joliet
Oak Brook
Racine
Orland Park
Hammond
Tinley Park
Janesville
Elgin
Aurora
Benton Harbor

Why use momondo?

Why should I use momondo to find a flight deal from Allentown to Chicago?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Chicago from Allentown.

Can I find flights from Allentown to Chicago with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Chicago from Allentown with this policy.

How can momondo help me find flights from Allentown to Chicago?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Allentown to Chicago.

I’m not ready to book a flight from Allentown to Chicago right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Allentown to Chicago now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Chicago and let you know when they change.

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