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Cheap flights from Allentown to Chicago from $120

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 10/21. 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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Find the cheapest flights from Allentown to Chicago

Cheap round-trip flights

American Airlines Logo
1:46 pm - 7:04 pmABE-ORD
6h 18m1 stop
American Airlines Logo
10:30 am - 4:39 pmORD-ABE
5h 09m1 stop
$159American Airlines
Find Deal
Tue, Nov 11 - Sat, Nov 15
American Airlines Logo
5:53 pm - 9:24 pmABE-ORD
4h 31m1 stop
American Airlines Logo
7:10 am - 1:26 pmORD-ABE
5h 16m1 stop
$189American Airlines
Find Deal
Fri, Oct 17 - Sat, Oct 25
Delta Logo
5:40 pm - 11:54 pmABE-ORD
7h 14m1 stop
Delta Logo
5:50 am - 12:07 pmORD-ABE
5h 17m1 stop
$197Delta
Find Deal
Sat, Feb 21 - Tue, Feb 24
American Airlines Logo
1:56 pm - 5:42 pmABE-ORD
4h 46m1 stop
American Airlines Logo
7:10 am - 2:13 pmORD-ABE
6h 03m1 stop
$199American Airlines
Find Deal
Sat, Oct 25 - Tue, Oct 28
Delta Logo
5:40 pm - 11:54 pmABE-ORD
7h 14m1 stop
Delta Logo
7:00 am - 5:13 pmORD-ABE
9h 13m2 stops
$202Delta
Find Deal
Sat, Feb 21 - Wed, Feb 25
United Airlines Logo
6:44 am - 8:05 amABE-ORD
2h 21mnonstop
United Airlines Logo
7:00 am - 9:58 amORD-ABE
1h 58mnonstop
$209United Airlines
Find Deal
Sat, Feb 21 - Wed, Feb 25
American Airlines Logo
6:16 am - 12:26 pmABE-ORD
7h 10m1 stop
American Airlines Logo
4:05 pm - 10:53 pmORD-ABE
5h 48m1 stop
$223American Airlines
Find Deal
Sat, Nov 15 - Sat, Nov 15
United Airlines Logo
1:00 pm - 2:32 pmABE-ORD
2h 32mnonstop
United Airlines Logo
1:45 pm - 4:53 pmORD-ABE
2h 08mnonstop
$229United Airlines
Find Deal
Tue, Sep 30 - Sat, Oct 4
Logo
6:19 pm - 7:34 amABE-ORD
14h 15m1 stop
Logo
6:23 pm - 9:26 amORD-ABE
14h 03m1 stop
$232
Find Deal
Thu, Oct 23 - Mon, Oct 27
Logo
4:55 pm - 7:44 pmABE-ORD
27h 49m1 stop
Logo
8:49 pm - 10:55 amORD-ABE
13h 06m1 stop
$245
Find Deal
Thu, Sep 25 - Mon, Sep 29

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 11
ABE1:46 pmAllentown-Bethlehem
6h 18m
1 stop
ORD7:04 pmChicago O'Hare Intl
Nov 15
ORD10:30 amChicago O'Hare Intl
5h 09m
1 stop
ABE4:39 pmAllentown-Bethlehem
$159
Find similar
American Airlines
Oct 17
ABE5:53 pmAllentown-Bethlehem
4h 31m
1 stop
ORD9:24 pmChicago O'Hare Intl
Oct 25
ORD7:10 amChicago O'Hare Intl
5h 16m
1 stop
ABE1:26 pmAllentown-Bethlehem
$189
Find similar
American Airlines
Oct 25
ABE1:56 pmAllentown-Bethlehem
4h 46m
1 stop
ORD5:42 pmChicago O'Hare Intl
Oct 28
ORD7:10 amChicago O'Hare Intl
6h 03m
1 stop
ABE2:13 pmAllentown-Bethlehem
$199
Find similar

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

Our best United Airlines deals on Allentown to Chicago O'Hare Intl Airport flight tickets
United Airlines
Feb 21
ABE6:44 amAllentown-Bethlehem
2h 21m
ORD8:05 amChicago O'Hare Intl
Feb 25
ORD7:00 amChicago O'Hare Intl
1h 58m
ABE9:58 amAllentown-Bethlehem
$209
Find similar
United Airlines
Sep 30
ABE1:00 pmAllentown-Bethlehem
2h 32m
ORD2:32 pmChicago O'Hare Intl
Oct 4
ORD1:45 pmChicago O'Hare Intl
2h 08m
ABE4:53 pmAllentown-Bethlehem
$229
Find similar
United Airlines
Oct 4
ABE5:28 pmAllentown-Bethlehem
2h 27m
ORD6:55 pmChicago O'Hare Intl
Oct 5
ORD7:25 amChicago O'Hare Intl
2h 13m
ABE10:38 amAllentown-Bethlehem
$235
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 September 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

Tue 11/11

1:46 pm-7:04 pm

1 stop6h 18m

Chicago O'Hare Intl

Sat 11/15

10:30 am-4:39 pm

1 stop5h 09m

$159

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Fri 10/17

5:53 pm-9:24 pm

1 stop4h 31m

Chicago O'Hare Intl

Sat 10/25

7:10 am-1:26 pm

1 stop5h 16m

$189

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Sat 2/21

5:40 pm-11:54 pm

1 stop7h 14m

Chicago O'Hare Intl

Tue 2/24

5:50 am-12:07 pm

1 stop5h 17m

$197

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Sat 10/25

1:56 pm-5:42 pm

1 stop4h 46m

Chicago O'Hare Intl

Tue 10/28

7:10 am-2:13 pm

1 stop6h 03m

$199

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Sat 2/21

5:40 pm-11:54 pm

1 stop7h 14m

Chicago O'Hare Intl

Wed 2/25

7:00 am-5:13 pm

2 stops9h 13m

$202

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Sat 2/21

6:44 am-8:05 am

Nonstop2h 21m

Chicago O'Hare Intl

Wed 2/25

7:00 am-9:58 am

Nonstop1h 58m

$209

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Sat 11/15

6:16 am-12:26 pm

1 stop7h 10m

Chicago O'Hare Intl

Sat 11/15

4:05 pm-10:53 pm

1 stop5h 48m

$223

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Tue 9/30

1:00 pm-2:32 pm

Nonstop2h 32m

Chicago O'Hare Intl

Sat 10/4

1:45 pm-4:53 pm

Nonstop2h 08m

$229

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Thu 10/23

6:19 pm-7:34 am

1 stop14h 15m

Chicago O'Hare Intl

Mon 10/27

6:23 pm-9:26 am

1 stop14h 03m

$232

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Thu 9/25

4:55 pm-7:44 pm

1 stop27h 49m

Chicago O'Hare Intl

Mon 9/29

8:49 pm-10:55 am

1 stop13h 06m

$245

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 cheapest month to fly to Chicago O'Hare Intl Airport?

The month of December is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Allentown averaging around $331.

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 $511. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday 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 $681.

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 $598. 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 $435 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 73% 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 September 2025, prices for Allentown to Chicago O'Hare Intl Airport flights are approximately 8% 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

$244

Fastest flight time

2h 14m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from Allentown in the past 72 hours is $244. The best round-trip flight deal from Allentown to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $395.
The fastest flight from Allentown to Chicago O'Hare Intl Airport takes 2h 14m
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 21m.

  • 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
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $279Free CancellationRating
7.4
8,931 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 $279 round-trip. Over the 21 United Airlines flights for this route in a normal week, average airfare is usually $496 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
Rockford
Schaumburg
Merrillville
Gurnee
Naperville
Rosemont
Kenosha
New Buffalo
Joliet
Oak Brook
Racine
Hammond
Orland Park
Tinley Park
Elgin
Aurora
Janesville
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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