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

Allegiant Air, United Airlines, and Delta are the most popular carriers operating from Illinois to Allentown-Bethlehem

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

As of August 2026, 50 flights take off from Illinois and land in Allentown each week. The most common flight departure day for this route is Sun, with 20% of weekly flights taking off on this day.

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

As of August 2026, 7 flights take off from Illinois and land in Allentown each day. The most common flight departure time for this route is 6:00AM, with 61% of daily flights taking off in the afternoon.

How long does it take to fly to Allentown?

Flight times vary depending on what airport in Illinois you fly out of and what airport in Allentown you fly into. For example, flying from Chicago to Newark Airport takes 2h 48m on average. On the other hand, flying from Peoria to Newark Airport takes 4h 48m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

What airlines fly to Allentown?

United Airlines, American Airlines and Frontier are the top three most popular airlines that fly to Allentown from Illinois according to our data. United Airlines is the first choice among our users, with 58% 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.

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

Prices for flights from Illinois to Allentown-Bethlehem Airport refresh daily.

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

As of August 2026, there are 3 operators available to choose from for flights from Illinois to Allentown-Bethlehem Airport.

How old do you have to be to fly from Illinois to Allentown-Bethlehem 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 Illinois to Allentown-Bethlehem Airport.

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

The required travel and health documents for your Allentown-Bethlehem Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Allentown-Bethlehem Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$115 Cheap Flights from Illinois to Allentown in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Illinois to Allentown

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:50 pm - 10:28 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

29h 38m1 stop Orlando

6:30 am - 12:23 amABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

18h 53m1 stop Denver Intl

$292Multiple Airlines

Thu, Oct 1 - Mon, Oct 5

5:54 pm - 9:02 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 08mnonstop

5:36 pm - 7:04 pmABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 28mnonstop

$299United Airlines

Sat, Nov 14 - Sat, Nov 21

1:28 pm - 4:40 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 12mnonstop

6:21 pm - 8:00 pmABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 39mnonstop

$299American Airlines

Sat, Oct 3 - Tue, Oct 6

6:59 pm - 10:12 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 13mnonstop

6:00 am - 7:33 amABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 33mnonstop

$299American Airlines

Fri, Oct 23 - Sun, Oct 25

6:25 am - 9:35 amORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 10mnonstop

5:43 pm - 7:05 pmABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 22mnonstop

$299United Airlines

Thu, Oct 8 - Tue, Oct 13

4:26 pm - 10:28 pmSTL Lambert-St Louis-ABE Allentown-Bethlehem

29h 02m1 stop Orlando

4:32 pm - 11:16 pmABE Allentown-Bethlehem-STL Lambert-St Louis

7h 44m1 stop Orlando

$313Multiple Airlines

Thu, Oct 29 - Mon, Nov 2

3:40 pm - 10:19 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

5h 39m1 stop Atlanta Hartsfield-Jackson

6:03 pm - 11:57 pmABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

6h 54m1 stop Atlanta Hartsfield-Jackson

$319Delta

Fri, Oct 30 - Sun, Nov 1

10:44 am - 5:31 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

5h 47m1 stop Atlanta Hartsfield-Jackson

6:28 am - 12:41 pmABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

7h 13m1 stop Atlanta Hartsfield-Jackson

$319Delta

Sat, Sep 19 - Sat, Sep 26

5:45 pm - 9:00 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 15mnonstop

6:20 am - 7:49 amABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 29mnonstop

$323United Airlines

Fri, Oct 9 - Sun, Oct 11

10:20 am - 3:08 pmSTL Lambert-St Louis-ABE Allentown-Bethlehem

27h 48m2 stops Dallas/Fort Worth Denver Intl

7:30 am - 7:17 pmABE Allentown-Bethlehem-STL Lambert-St Louis

12h 47m1 stop Denver Intl

$346Multiple Airlines

Thu, Sep 10 - Mon, Sep 14

Cheap last minute flights

Enter your travel dates to find the best prices.

2:00 pm - 5:01 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 01mnonstop

6:15 am - 7:44 amABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 29mnonstop

$349United Airlines

Sat, Sep 5 - Tue, Sep 8

7:10 pm - 10:20 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 10mnonstop

9:13 am - 10:38 amABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 25mnonstop

$349American Airlines

Sat, Sep 5 - Wed, Sep 9

1:50 pm - 10:23 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

7h 33m1 stop Atlanta Hartsfield-Jackson

6:08 pm - 11:59 pmABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

6h 51m1 stop Atlanta Hartsfield-Jackson

$369Delta

Sat, Sep 5 - Tue, Sep 8

1:50 pm - 10:23 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

7h 33m1 stop Atlanta Hartsfield-Jackson

6:08 pm - 11:59 pmABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

6h 51m1 stop Atlanta Hartsfield-Jackson

$369Delta

Sat, Sep 5 - Wed, Sep 9

7:30 pm - 10:40 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 10mnonstop

5:10 pm - 6:48 pmABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 38mnonstop

$374American Airlines

Fri, Sep 4 - Fri, Sep 11

7:10 pm - 10:20 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 10mnonstop

5:45 am - 10:45 amABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

6h 00m1 stop Charlotte Douglas

$376American Airlines

Sat, Sep 5 - Wed, Sep 9

1:59 pm - 5:00 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 01mnonstop

6:15 am - 7:44 amABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 29mnonstop

$395United Airlines

Wed, Sep 2 - Mon, Sep 7

5:50 pm - 9:00 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 10mnonstop

6:15 am - 7:44 amABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 29mnonstop

$395United Airlines

Wed, Sep 2 - Mon, Sep 7

5:27 pm - 3:38 pmSTL Lambert-St Louis-ABE Allentown-Bethlehem

21h 11m2 stops Dallas/Fort Worth Denver Intl

2:28 pm - 3:28 pmABE Allentown-Bethlehem-STL Lambert-St Louis

26h 00m1 stop Orlando

$649Multiple Airlines

Thu, Sep 3 - Sun, Sep 6

7:58 pm - 3:38 pmSTL Lambert-St Louis-ABE Allentown-Bethlehem

18h 40m1 stop Denver Intl

7:50 pm - 1:10 pmABE Allentown-Bethlehem-STL Lambert-St Louis

42h 20m2 stops Fort Lauderdale Atlanta Hartsfield-Jackson

$656Multiple Airlines

Thu, Sep 3 - Mon, Sep 7

Cheap direct flights

Enter your travel dates to find the best prices.

5:54 pm - 9:02 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 08mnonstop

5:36 pm - 7:04 pmABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 28mnonstop

$299United Airlines

Sat, Nov 14 - Sat, Nov 21

6:25 am - 9:35 amORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 10mnonstop

5:43 pm - 7:05 pmABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 22mnonstop

$299United Airlines

Thu, Oct 8 - Tue, Oct 13

2:33 pm - 5:47 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 14mnonstop

6:00 am - 7:33 amABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 33mnonstop

$299American Airlines

Tue, Oct 20 - Tue, Oct 27

7:00 pm - 10:18 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 18mnonstop

5:10 pm - 6:48 pmABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 38mnonstop

$299American Airlines

Sat, Sep 19 - Sat, Sep 26

3:00 pm - 6:14 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 14mnonstop

6:44 pm - 8:23 pmABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 39mnonstop

$299American Airlines

Fri, Oct 9 - Mon, Oct 19

7:00 pm - 10:18 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 18mnonstop

5:10 pm - 6:48 pmABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 38mnonstop

$299American Airlines

Fri, Sep 18 - Mon, Sep 21

7:00 pm - 10:18 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 18mnonstop

5:10 pm - 6:48 pmABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 38mnonstop

$299American Airlines

Fri, Sep 25 - Fri, Oct 2

7:49 pm - 10:59 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 10mnonstop

6:15 pm - 7:59 pmABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 44mnonstop

$299American Airlines

Fri, Nov 13 - Sun, Nov 15

7:00 pm - 10:18 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 18mnonstop

6:21 pm - 8:00 pmABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 39mnonstop

$299American Airlines

Fri, Oct 2 - Tue, Oct 6

7:00 pm - 10:18 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 18mnonstop

6:00 am - 7:33 amABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 33mnonstop

$299American Airlines

Fri, Oct 2 - Tue, Oct 6

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United Airlines flights from Illinois to Allentown

Our best United Airlines deals on Illinois to Allentown flight tickets

United Airlines

Oct 9

ORD5:45 pmChicago O'Hare Intl

2h 15m

ABE9:00 pmAllentown-Bethlehem

Oct 11

ABE6:20 amAllentown-Bethlehem

2h 29m

ORD7:49 amChicago O'Hare Intl

$323

United Airlines

Sep 16

STL12:59 pmLambert-St Louis

7h 01m

1 stop

ABE9:00 pmAllentown-Bethlehem

Sep 22

ABE5:36 pmAllentown-Bethlehem

5h 24m

1 stop

STL10:00 pmLambert-St Louis

$334

United Airlines

Sep 10

STL8:30 amLambert-St Louis

7h 26m

1 stop

ABE4:56 pmAllentown-Bethlehem

Sep 13

ABE6:15 amAllentown-Bethlehem

4h 57m

1 stop

STL10:12 amLambert-St Louis

$349

American Airlines flights from Illinois to Allentown

Our best American Airlines deals on Illinois to Allentown flight tickets

American Airlines

Sep 25

ORD7:00 pmChicago O'Hare Intl

2h 18m

ABE10:18 pmAllentown-Bethlehem

Sep 29

ABE5:10 pmAllentown-Bethlehem

2h 38m

ORD6:48 pmChicago O'Hare Intl

$299

American Airlines

Oct 10

ORD3:00 pmChicago O'Hare Intl

2h 14m

ABE6:14 pmAllentown-Bethlehem

Oct 17

ABE6:44 pmAllentown-Bethlehem

2h 39m

ORD8:23 pmChicago O'Hare Intl

$300

American Airlines

Sep 9

ORD1:28 pmChicago O'Hare Intl

2h 12m

ABE4:40 pmAllentown-Bethlehem

Sep 12

ABE9:13 amAllentown-Bethlehem

2h 25m

ORD10:38 amChicago O'Hare Intl

$317

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoAllentown

ORD Chicago O'Hare Intl - ABE Allentown-Bethlehem

ORDABE

Chicago O'Hare Intl

Thu 10/1

3:50 pm-10:28 pm

1 stop29h 38m

Allentown-Bethlehem

Mon 10/5

6:30 am-12:23 am

1 stop18h 53m

$292

ChicagoAllentown

ORD Chicago O'Hare Intl - ABE Allentown-Bethlehem

ORDABE

Chicago O'Hare Intl

Sat 11/14

5:54 pm-9:02 pm

Nonstop2h 08m

Allentown-Bethlehem

Sat 11/21

5:36 pm-7:04 pm

Nonstop2h 28m

$299

ChicagoAllentown

ORD Chicago O'Hare Intl - ABE Allentown-Bethlehem

ORDABE

Chicago O'Hare Intl

Sat 10/3

1:28 pm-4:40 pm

Nonstop2h 12m

Allentown-Bethlehem

Tue 10/6

6:21 pm-8:00 pm

Nonstop2h 39m

$299

ChicagoAllentown

ORD Chicago O'Hare Intl - ABE Allentown-Bethlehem

ORDABE

Chicago O'Hare Intl

Fri 10/23

6:59 pm-10:12 pm

Nonstop2h 13m

Allentown-Bethlehem

Sun 10/25

6:00 am-7:33 am

Nonstop2h 33m

$299

Quickest round-trip

ChicagoAllentown

ORD Chicago O'Hare Intl - ABE Allentown-Bethlehem

ORDABE

Chicago O'Hare Intl

Thu 10/8

6:25 am-9:35 am

Nonstop2h 10m

Allentown-Bethlehem

Tue 10/13

5:43 pm-7:05 pm

Nonstop2h 22m

$299

St. LouisAllentown

STL Lambert-St Louis - ABE Allentown-Bethlehem

STLABE

Lambert-St Louis

Thu 10/29

4:26 pm-10:28 pm

1 stop29h 02m

Allentown-Bethlehem

Mon 11/2

4:32 pm-11:16 pm

1 stop7h 44m

$313

ChicagoAllentown

ORD Chicago O'Hare Intl - ABE Allentown-Bethlehem

ORDABE

Chicago O'Hare Intl

Fri 10/30

3:40 pm-10:19 pm

1 stop5h 39m

Allentown-Bethlehem

Sun 11/1

6:03 pm-11:57 pm

1 stop6h 54m

$319

ChicagoAllentown

ORD Chicago O'Hare Intl - ABE Allentown-Bethlehem

ORDABE

Chicago O'Hare Intl

Sat 9/19

10:44 am-5:31 pm

1 stop5h 47m

Allentown-Bethlehem

Sat 9/26

6:28 am-12:41 pm

1 stop7h 13m

$319

ChicagoAllentown

ORD Chicago O'Hare Intl - ABE Allentown-Bethlehem

ORDABE

Chicago O'Hare Intl

Fri 10/9

5:45 pm-9:00 pm

Nonstop2h 15m

Allentown-Bethlehem

Sun 10/11

6:20 am-7:49 am

Nonstop2h 29m

$323

St. LouisAllentown

STL Lambert-St Louis - ABE Allentown-Bethlehem

STLABE

Lambert-St Louis

Thu 9/10

10:20 am-3:08 pm

2 stops27h 48m

Allentown-Bethlehem

Mon 9/14

7:30 am-7:17 pm

1 stop12h 47m

$346

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 Illinois 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 cheapest month to fly to Allentown?

The month of February is, on average, the cheapest month to fly to Allentown from Illinois, with most prices found around $252. If you aren’t able to travel to Allentown during the month of February, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $299.

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

The cheapest day to depart from Illinois to Allentown is on a Saturday when prices can be found for as low as $298. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to Allentown on Tuesday is $447.

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

At noon is the cheapest time of day to fly from Illinois to Allentown when you can find flight prices for as low as $320. Flying to Allentown at noon 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 Illinois to Allentown-Bethlehem flight route?

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

What cabin class options are available on Illinois to Allentown flights?

There are 3 cabin classes available to choose from on Illinois 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 Illinois to Allentown flights?

No. A direct flight is the cheapest option for a flight between Illinois to Allentown.

Cheap Illinois to Allentown flight deals and tips

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

Best Price Found	$115
Fastest flight time	1h 57m
Direct flights	Every day
Airports in Allentown	1 airport

The best one-way flight to Allentown from Illinois in the past 72 hours is $115. The best round-trip flight deal from Illinois to Allentown found on momondo in the last 72 hours is $292.

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

Direct flights go from Illinois to Allentown every day.

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

Search flight deals

Frequently asked questions about flying from Illinois to Allentown

When did momondo last update prices for flights from Illinois to Allentown-Bethlehem Airport?
Prices for flights from Illinois to Allentown-Bethlehem Airport refresh daily.
How many operators does momondo search for flights from Illinois to Allentown-Bethlehem Airport?
As of August 2026, there are 3 operators available to choose from for flights from Illinois to Allentown-Bethlehem Airport.
How old do you have to be to fly from Illinois to Allentown-Bethlehem 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 Illinois to Allentown-Bethlehem Airport.
What documentation or ID do you need to fly to Allentown-Bethlehem Airport?
The required travel and health documents for your Allentown-Bethlehem Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Allentown-Bethlehem Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Illinois to Allentown?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Illinois to Allentown is Embraer 170 (27.41% of total bookings). The next most popular plane models are Canadair (Bombardier) Regional Jet CRJ-550 (26.67%), Canadair (Bombardier) Regional Jet (16.67%), and Airbus A321neo (7.78%).

Best airlines flying from Illinois to Allentown

Compare and see reviews for airlines that fly from Illinois to Allentown with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $205	Free Cancellation	Rating 7.1 12,019 reviews		Search American Airlines flights
United Airlines	PriceFrom $225	Free Cancellation	Rating 7.4 10,146 reviews		Search United Airlines flights

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Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Allentown for you.

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

Yes. momondo allows you to filter the results for Illinois to Allentown flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Allentown from Illinois. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Illinois to Allentown flights. All you need is a valid email address and we will do the rest; it is that quick and easy.