What is the cheapest airline that flies from Chicago to Allentown-Bethlehem?

Delta and United Airlines are the most popular carriers operating from Chicago to Allentown-Bethlehem

What airlines fly to Allentown?

United Airlines, American Airlines and Frontier are the top three most popular airlines that fly to Allentown from Chicago according to our data. United Airlines is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Allentown. Keep in mind that there are 5 different airlines that fly to Allentown on a routine basis, so you have a few additional options to choose from.

How many flights depart from Chicago to Allentown on average per day?

As of July 2026, 6 flights take off from Chicago and land in Allentown each day. The most common flight departure time for this route is 1:00PM, with 68% of daily flights taking off in the afternoon.

How many flights depart from Chicago to Allentown on average per week?

As of July 2026, 43 flights take off from Chicago and land in Allentown each week. The most common flight departure day for this route is Wed, with 21% of weekly flights taking off on this day.

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?

The number of operators available for flights from Chicago to Allentown-Bethlehem Airport is 2 as of July 2026.

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.

$122 Cheap Flights from Chicago to Allentown in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Chicago to Allentown

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:11 am - 9:37 pm

ORD

ABE

13h 26m

1 stop

3:00 pm - 2:45 pm

ABE

ORD

24h 45m

1 stop

$255Multiple Airlines

Thu, Sep 10 - Thu, Sep 17

7:11 am - 9:37 pm

ORD

ABE

13h 26m

1 stop

3:00 pm - 2:45 pm

ABE

ORD

24h 45m

1 stop

$264Multiple Airlines

Thu, Sep 10 - Thu, Sep 17

5:50 pm - 9:00 pm

ORD

ABE

2h 10mnonstop

5:36 pm - 7:05 pm

ABE

ORD

2h 29mnonstop

$279United Airlines

Wed, Sep 2 - Tue, Sep 8

6:29 am - 9:39 am

ORD

ABE

2h 10mnonstop

5:36 pm - 7:05 pm

ABE

ORD

2h 29mnonstop

$279United Airlines

Mon, Sep 14 - Mon, Sep 21

7:30 pm - 10:40 pm

ORD

ABE

2h 10mnonstop

5:12 pm - 6:44 pm

ABE

ORD

2h 32mnonstop

$279American Airlines

Wed, Aug 26 - Sun, Aug 30

1:28 pm - 4:40 pm

ORD

ABE

2h 12mnonstop

6:20 pm - 7:59 pm

ABE

ORD

2h 39mnonstop

$279American Airlines

Thu, Oct 1 - Mon, Oct 5

6:29 am - 9:39 am

ORD

ABE

2h 10mnonstop

5:36 pm - 7:05 pm

ABE

ORD

2h 29mnonstop

$279United Airlines

Wed, Sep 16 - Tue, Sep 22

1:35 pm - 4:42 pm

ORD

ABE

2h 07mnonstop

5:12 pm - 6:44 pm

ABE

ORD

2h 32mnonstop

$279American Airlines

Mon, Aug 24 - Mon, Aug 31

8:05 am - 7:00 pm

ORD

ABE

9h 55m

1 stop

7:30 am - 12:23 am

ABE

ORD

17h 53m

1 stop

$285Multiple Airlines

Mon, Sep 7 - Mon, Sep 14

11:06 am - 3:42 pm

ORD

ABE

27h 36m

1 stop

4:32 pm - 1:16 pm

ABE

ORD

21h 44m

1 stop

$287Multiple Airlines

Thu, Oct 8 - Mon, Oct 12

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Allegiant Air flights from Chicago to Allentown

Our best Allegiant Air deals on Chicago to Allentown flight tickets

Allegiant Air

Dec 24

MDW4:53 pmChicago Midway

24h 28m

1 stop

ABE6:21 pmAllentown-Bethlehem

Dec 31

ABE8:00 amAllentown-Bethlehem

9h 03m

1 stop

MDW4:03 pmChicago Midway

$496

Allegiant Air

Dec 24

MDW4:53 pmChicago Midway

24h 28m

1 stop

ABE6:21 pmAllentown-Bethlehem

Dec 31

ABE8:00 amAllentown-Bethlehem

9h 03m

1 stop

MDW4:03 pmChicago Midway

$501

Allegiant Air

Dec 22

MDW9:42 amChicago Midway

9h 06m

1 stop

ABE7:48 pmAllentown-Bethlehem

Dec 31

ABE8:00 amAllentown-Bethlehem

9h 03m

1 stop

MDW4:03 pmChicago Midway

$590

American Airlines flights from Chicago to Allentown

Our best American Airlines deals on Chicago to Allentown flight tickets

American Airlines

Aug 26

ORD7:30 pmChicago O'Hare Intl

2h 10m

ABE10:40 pmAllentown-Bethlehem

Aug 30

ABE5:12 pmAllentown-Bethlehem

2h 32m

ORD6:44 pmChicago O'Hare Intl

$279

American Airlines

Sep 8

ORD7:30 pmChicago O'Hare Intl

2h 10m

ABE10:40 pmAllentown-Bethlehem

Sep 15

ABE5:10 pmAllentown-Bethlehem

2h 38m

ORD6:48 pmChicago O'Hare Intl

$280

American Airlines

Sep 8

ORD7:30 pmChicago O'Hare Intl

2h 10m

ABE10:40 pmAllentown-Bethlehem

Sep 15

ABE5:10 pmAllentown-Bethlehem

2h 38m

ORD6:48 pmChicago O'Hare Intl

$281

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoAllentown

ORD - ABE

ORDABE

Chicago O'Hare Intl

Thu 9/10

7:11 am-9:37 pm

1 stop13h 26m

Allentown-Bethlehem

Thu 9/17

3:00 pm-2:45 pm

1 stop24h 45m

$255

ChicagoAllentown

ORD - ABE

ORDABE

Chicago O'Hare Intl

Thu 9/10

7:11 am-9:37 pm

1 stop13h 26m

Allentown-Bethlehem

Thu 9/17

3:00 pm-2:45 pm

1 stop24h 45m

$264

Quickest round-trip

ChicagoAllentown

ORD - ABE

ORDABE

Chicago O'Hare Intl

Wed 9/2

5:50 pm-9:00 pm

Nonstop2h 10m

Allentown-Bethlehem

Tue 9/8

5:36 pm-7:05 pm

Nonstop2h 29m

$279

ChicagoAllentown

ORD - ABE

ORDABE

Chicago O'Hare Intl

Mon 9/14

6:29 am-9:39 am

Nonstop2h 10m

Allentown-Bethlehem

Mon 9/21

5:36 pm-7:05 pm

Nonstop2h 29m

$279

ChicagoAllentown

ORD - ABE

ORDABE

Chicago O'Hare Intl

Wed 8/26

7:30 pm-10:40 pm

Nonstop2h 10m

Allentown-Bethlehem

Sun 8/30

5:12 pm-6:44 pm

Nonstop2h 32m

$279

ChicagoAllentown

ORD - ABE

ORDABE

Chicago O'Hare Intl

Thu 10/1

1:28 pm-4:40 pm

Nonstop2h 12m

Allentown-Bethlehem

Mon 10/5

6:20 pm-7:59 pm

Nonstop2h 39m

$279

ChicagoAllentown

ORD - ABE

ORDABE

Chicago O'Hare Intl

Wed 9/16

6:29 am-9:39 am

Nonstop2h 10m

Allentown-Bethlehem

Tue 9/22

5:36 pm-7:05 pm

Nonstop2h 29m

$279

ChicagoAllentown

ORD - ABE

ORDABE

Chicago O'Hare Intl

Mon 8/24

1:35 pm-4:42 pm

Nonstop2h 07m

Allentown-Bethlehem

Mon 8/31

5:12 pm-6:44 pm

Nonstop2h 32m

$279

ChicagoAllentown

ORD - ABE

ORDABE

Chicago O'Hare Intl

Mon 9/7

8:05 am-7:00 pm

1 stop9h 55m

Allentown-Bethlehem

Mon 9/14

7:30 am-12:23 am

1 stop17h 53m

$285

ChicagoAllentown

ORD - ABE

ORDABE

Chicago O'Hare Intl

Thu 10/8

11:06 am-3:42 pm

1 stop27h 36m

Allentown-Bethlehem

Mon 10/12

4:32 pm-1:16 pm

1 stop21h 44m

$287

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

What is the typical price of a round-trip flight between Chicago and Allentown?

Prices are currently low for flights on this route.

Typical prices usually range from $324 to $395.
The lowest price recently found on this route was $255.

What is the cheapest month to fly to Allentown?

The month of February is, on average, the cheapest month to fly to Allentown from Chicago, with most prices found around $252. If you aren’t able to travel to Allentown during the month of February, then flying in June is also cheap. Prices for this month can be found on momondo for an average of $300.

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 $294. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Allentown on Sunday is $439.

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

In the evening is the cheapest time of day to fly from Chicago to Allentown when you can find flight prices for as low as $309. Flying to Allentown in the evening is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive with an average ticket price of $589.

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 flights?

There are 3 cabin classes available to choose from on Chicago to Allentown 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 21% on your flight if you consider stops on a Chicago to Allentown flight.

How have Chicago to Allentown flight prices changed over time?

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	$268
Fastest flight time	1h 57m
Direct flights	Every day
Airports in Allentown	1 airport

The best one-way flight to Allentown from Chicago in the past 72 hours is $268. The best round-trip flight deal from Chicago to Allentown found on momondo in the last 72 hours is $289.

The fastest flight from Chicago to Allentown takes 1h 57m

Direct flights go from Chicago to Allentown every day.

There is 1 airport in Allentown. From Chicago there are direct flights to Allentown-Bethlehem (ABE).

Search flight deals

Frequently asked questions about flying from Chicago to Allentown

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 1h 57m, 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?
The number of operators available for flights from Chicago to Allentown-Bethlehem Airport is 2 as of July 2026.
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?
Based on momondo bookings for flights between Chicago and Allentown, the leading plane model is Canadair (Bombardier) Regional Jet CRJ-550, making up 25.55% of the total bookings. Other popular models include Embraer 170 with 23.66%, Canadair (Bombardier) Regional Jet with 17.98%, and Airbus A321neo with 9.15%.
What is the most popular airline from Chicago to Allentown?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Chicago to Allentown is United Airlines (69% of total bookings). The next most popular airline is American Airlines (31%).

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 Airlines	PriceFrom $205	Free Cancellation	Rating 7.1 11,839 reviews		Search American Airlines flights
United Airlines	PriceFrom $225	Free Cancellation	Rating 7.4 10,046 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 $225. Generally, United Airlines has 18 flights on this route every week with an average price of $362. United Airlines is rated 7.4/10 by our users.
American Airlines Flights From Chicago to Allentown
The best American Airlines deal for Chicago to Allentown flight tickets found on momondo in the last 72 hours was $205, round-trip. It should be noted that an average American Airlines flight deal for this route in this time was higher, at $308 round-trip. American Airlines operates 3 flights out of Chicago into Allentown in an average week, so prices vary by time and availability. 11,839 American Airlines reviews by users on momondo have scored the airline at 7.1/10.

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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.