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Cheap flights from Chicago to Allentown from $119

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Allentown departing on 9/25. 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 Chicago to Allentown (CHI-ABE)

Cheap round-trip flights

American Airlines Logo
7:02 am - 2:22 pmORD-ABE
6h 20m1 stop
American Airlines Logo
6:35 pm - 11:12 pmABE-ORD
5h 37m1 stop
$159American Airlines
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Sat, Sep 27 - Sat, Sep 27
American Airlines Logo
8:37 am - 2:22 pmORD-ABE
4h 45m1 stop
American Airlines Logo
6:05 am - 10:47 amABE-ORD
5h 42m1 stop
$194American Airlines
Find Deal
Sat, Oct 4 - Sun, Oct 5
Logo
8:19 am - 8:40 pmMDW-ABE
11h 21m1 stop
Logo
4:55 pm - 8:53 amABE-MDW
16h 58m1 stop
$209
Find Deal
Mon, Sep 8 - Thu, Sep 11
Logo
8:49 pm - 10:55 amORD-ABE
13h 06m1 stop
Logo
6:30 am - 7:44 pmABE-ORD
14h 14m1 stop
$216
Find Deal
Mon, Sep 8 - Thu, Sep 11
Delta Logo
6:00 am - 12:04 pmMDW-ABE
5h 04m1 stop
Delta Logo
6:00 pm - 10:14 pmABE-MDW
5h 14m1 stop
$229Delta
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Sat, Oct 4 - Sat, Oct 11
Delta Logo
1:25 pm - 10:15 pmORD-ABE
7h 50m2 stops
Delta Logo
6:00 pm - 11:57 pmABE-ORD
6h 57m1 stop
$234Delta
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Sat, Oct 11 - Wed, Oct 15
United Airlines Logo
8:45 am - 11:58 amORD-ABE
2h 13mnonstop
United Airlines Logo
5:28 pm - 6:55 pmABE-ORD
2h 27mnonstop
$248United Airlines
Find Deal
Fri, Sep 12 - Sun, Sep 14
United Airlines Logo
8:45 am - 11:58 amORD-ABE
2h 13mnonstop
United Airlines Logo
5:28 pm - 6:55 pmABE-ORD
2h 27mnonstop
$329United Airlines
Find Deal
Wed, Sep 10 - Sat, Sep 13
Allegiant Air Logo
4:46 pm - 9:23 pmMDW-ABE
27h 37m1 stop
Allegiant Air Logo
6:00 am - 4:33 pmABE-MDW
11h 33m2 stops
$343Allegiant Air
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Thu, Oct 2 - Mon, Oct 6
Allegiant Air Logo
12:50 pm - 10:55 amMDW-ABE
21h 05m2 stops
Allegiant Air Logo
6:00 am - 7:00 pmABE-MDW
14h 00m2 stops
$372Allegiant Air
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Mon, Sep 8 - Mon, Sep 15

American Airlines flights from Chicago to Allentown

Our best American Airlines deals on Chicago to Allentown flight tickets
American Airlines
Sep 27
ORD7:02 amChicago O'Hare Intl
6h 20m
1 stop
ABE2:22 pmAllentown-Bethlehem
Sep 27
ABE6:35 pmAllentown-Bethlehem
5h 37m
1 stop
ORD11:12 pmChicago O'Hare Intl
$159
Find similar
American Airlines
Oct 4
ORD8:37 amChicago O'Hare Intl
4h 45m
1 stop
ABE2:22 pmAllentown-Bethlehem
Oct 5
ABE6:05 amAllentown-Bethlehem
5h 42m
1 stop
ORD10:47 amChicago O'Hare Intl
$194
Find similar
American Airlines
Oct 3
ORD7:02 amChicago O'Hare Intl
6h 03m
1 stop
ABE2:05 pmAllentown-Bethlehem
Oct 3
ABE7:00 pmAllentown-Bethlehem
5h 12m
1 stop
ORD11:12 pmChicago O'Hare Intl
$219
Find similar

United Airlines flights from Chicago to Allentown

Our best United Airlines deals on Chicago to Allentown flight tickets
United Airlines
Sep 12
ORD8:45 amChicago O'Hare Intl
2h 13m
ABE11:58 amAllentown-Bethlehem
Sep 14
ABE5:28 pmAllentown-Bethlehem
2h 27m
ORD6:55 pmChicago O'Hare Intl
$248
Find similar
United Airlines
Sep 6
ORD7:25 amChicago O'Hare Intl
2h 12m
ABE10:37 amAllentown-Bethlehem
Sep 10
ABE1:00 pmAllentown-Bethlehem
2h 32m
ORD2:32 pmChicago O'Hare Intl
$259
Find similar
United Airlines
Sep 10
ORD8:45 amChicago O'Hare Intl
2h 13m
ABE11:58 amAllentown-Bethlehem
Sep 13
ABE5:28 pmAllentown-Bethlehem
2h 27m
ORD6:55 pmChicago O'Hare Intl
$329
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago to Allentown 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 August 28, 2025.
Use the filters below to find and compare flights from Chicago to Allentown that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoAllentown

ORD - ABE

ORDABE

Chicago O'Hare Intl

Sat 9/27

7:02 am-2:22 pm

1 stop6h 20m

Allentown-Bethlehem

Sat 9/27

6:35 pm-11:12 pm

1 stop5h 37m

$159

ChicagoAllentown

ORD - ABE

ORDABE

Chicago O'Hare Intl

Sat 10/4

8:37 am-2:22 pm

1 stop4h 45m

Allentown-Bethlehem

Sun 10/5

6:05 am-10:47 am

1 stop5h 42m

$194

ChicagoAllentown

MDW - ABE

MDWABE

Chicago Midway

Mon 9/8

8:19 am-8:40 pm

1 stop11h 21m

Allentown-Bethlehem

Thu 9/11

4:55 pm-8:53 am

1 stop16h 58m

$209

ChicagoAllentown

ORD - ABE

ORDABE

Chicago O'Hare Intl

Mon 9/8

8:49 pm-10:55 am

1 stop13h 06m

Allentown-Bethlehem

Thu 9/11

6:30 am-7:44 pm

1 stop14h 14m

$216

ChicagoAllentown

MDW - ABE

MDWABE

Chicago Midway

Sat 10/4

6:00 am-12:04 pm

1 stop5h 04m

Allentown-Bethlehem

Sat 10/11

6:00 pm-10:14 pm

1 stop5h 14m

$229

ChicagoAllentown

ORD - ABE

ORDABE

Chicago O'Hare Intl

Sat 10/11

1:25 pm-10:15 pm

2 stops7h 50m

Allentown-Bethlehem

Wed 10/15

6:00 pm-11:57 pm

1 stop6h 57m

$234

ChicagoAllentown

ORD - ABE

ORDABE

Chicago O'Hare Intl

Fri 9/12

8:45 am-11:58 am

Nonstop2h 13m

Allentown-Bethlehem

Sun 9/14

5:28 pm-6:55 pm

Nonstop2h 27m

$248

ChicagoAllentown

ORD - ABE

ORDABE

Chicago O'Hare Intl

Wed 9/10

8:45 am-11:58 am

Nonstop2h 13m

Allentown-Bethlehem

Sat 9/13

5:28 pm-6:55 pm

Nonstop2h 27m

$329

ChicagoAllentown

MDW - ABE

MDWABE

Chicago Midway

Thu 10/2

4:46 pm-9:23 pm

1 stop27h 37m

Allentown-Bethlehem

Mon 10/6

6:00 am-4:33 pm

2 stops11h 33m

$343

ChicagoAllentown

MDW - ABE

MDWABE

Chicago Midway

Mon 9/8

12:50 pm-10:55 am

2 stops21h 05m

Allentown-Bethlehem

Mon 9/15

6:00 am-7:00 pm

2 stops14h 00m

$372

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 Allentown from

How to get the cheapest flight ticket from Chicago to Allentown

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 Chicago and Allentown?

What is the cheapest month to fly to Allentown?

The month of May is, on average, the cheapest month to fly to Allentown from Chicago, with most prices found around $269. If you aren’t able to travel to Allentown during the month of May, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $278.

What is the cheapest day to depart on your flight to Allentown?

The cheapest day to depart from Chicago to Allentown is on a Saturday when prices can be found for as low as $373. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Allentown on Monday is $671.

What is the cheapest time of day to depart on your flight to Allentown?

In the afternoon is the cheapest time of day to fly from Chicago to Allentown when you can find flight prices for as low as $422. Flying to Allentown in the afternoon is an ideal time because this is during off-peak travel hours. Flights at noon are often more expensive with an average ticket price of $534.

What is the cheapest Chicago to Allentown-Bethlehem flight route?

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

What cabin class options are available on Chicago to Allentown-Bethlehem flights?

There are 2 cabin classes available to choose from on Chicago to Allentown-Bethlehem 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 Chicago to Allentown flights?

You could potentially save up to 69% on your flight if you consider stops on a Chicago to Allentown flight.

How have Chicago to Allentown flight prices changed over time?

As of August 2025, prices for Chicago to Allentown flights are approximately 48% cheaper when compared to flights at the same time last year.

When to book flights from Chicago to Allentown

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

Cheap Chicago to Allentown (CHI to ABE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Allentown

Best Price Found

$468

Fastest flight time

2h 00m

Direct flights

Every day

Airports in Allentown

1 airport
The best one-way flight to Allentown from Chicago in the past 72 hours is $468. The best round-trip flight deal from Chicago to Allentown found on momondo in the last 72 hours is $331.
The fastest flight from Chicago to Allentown takes 2h 00m
Direct flights go from Chicago to Allentown every day.
There is 1 airport near Allentown: Allentown-Bethlehem (ABE)
Search flight deals

  • How far is Chicago to Allentown-Bethlehem by plane?

    The distance between Chicago and Allentown-Bethlehem is about 636.8 mi. Flights usually cover this in 2h 07m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Chicago to Allentown-Bethlehem Airport are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Allentown-Bethlehem Airport.

  • What documentation or ID do you need to fly to Allentown-Bethlehem Airport?

    The necessary travel and health documents for your Allentown-Bethlehem 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 Chicago to Allentown?

  • What is the most popular airline from Chicago to Allentown?

Best airlines flying from Chicago to Allentown

Compare and see reviews for airlines that fly from Chicago to Allentown with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $158Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $245Free CancellationRating
7.4
8,944 reviews
Search United Airlines flights

  • United Airlines Flights From Chicago to Allentown

    The lowest priced United Airlines flight from Chicago to Allentown from the last 72 hours was $245. Generally, United Airlines has 20 flights on this route every week with an average price of $497. United Airlines is rated 7.4/10 by our users.

Traveling to a place near Allentown?

Book flights to Allentown if you plan to visit one of these locations
Lehighton

Why use momondo?

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

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 Allentown from Chicago.

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

Flights from Chicago to Allentown with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

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 Chicago to Allentown.

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

Yes. momondo can track prices for Chicago to Allentown flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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