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

American 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 day?

As of October 2026, 8 flights take off from Illinois and land in Allentown each day. The most common flight departure time for this route is 6:00AM, with 54% of daily flights taking off in the afternoon.

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

As of October 2026, 60 flights take off from Illinois and land in Allentown each week. The most common flight departure day for this route is Mon, with 15% of weekly flights taking off on this day.

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 12m 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 60% 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 October 2026, there are 2 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.

$188 Cheap Flights from Illinois to Allentown in 2026/27

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.

2:30 pm - 5:42 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 12mnonstop

5:30 am - 7:15 amABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 45mnonstop

$339American Airlines

Thu, Dec 3 - Sun, Dec 6

8:45 pm - 11:57 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 12mnonstop

5:30 am - 7:15 amABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 45mnonstop

$339American Airlines

Wed, Dec 2 - Sat, Dec 5

6:50 am - 9:51 amORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 01mnonstop

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

2h 33mnonstop

$339United Airlines

Wed, Dec 2 - Sat, Dec 5

5:45 pm - 8:51 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 06mnonstop

6:00 am - 7:45 amABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 45mnonstop

$339United Airlines

Fri, Dec 25 - Fri, Jan 1

7:45 pm - 10:56 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 11mnonstop

6:22 pm - 8:15 pmABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 53mnonstop

$339American Airlines

Tue, Nov 24 - Tue, Dec 1

2:35 pm - 5:41 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 06mnonstop

5:37 am - 7:15 amABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 38mnonstop

$339American Airlines

Wed, Nov 11 - Sun, Nov 15

6:25 am - 9:28 amORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 03mnonstop

6:00 am - 7:36 amABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 36mnonstop

$339United Airlines

Fri, Dec 11 - Sun, Dec 13

5:30 am - 12:06 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

5h 36m1 stop Atlanta Hartsfield-Jackson

5:58 pm - 11:56 pmABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

6h 58m1 stop Atlanta Hartsfield-Jackson

$359Delta

Thu, Dec 3 - Sun, Dec 6

9:59 am - 5:13 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

6h 14m1 stop Atlanta Hartsfield-Jackson

6:39 am - 12:24 pmABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

6h 45m1 stop Atlanta Hartsfield-Jackson

$359Delta

Fri, Dec 11 - Sun, Dec 13

1:30 pm - 10:27 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

7h 57m1 stop Atlanta Hartsfield-Jackson

6:00 pm - 11:54 pmABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

6h 54m1 stop Atlanta Hartsfield-Jackson

$359Delta

Wed, Nov 11 - Sat, Nov 14

Cheap last minute flights

Enter your travel dates to find the best prices.

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

2h 13mnonstop

6:47 pm - 8:26 pmABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 39mnonstop

$414American Airlines

Fri, Oct 23 - Wed, Oct 28

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

2h 13mnonstop

6:47 pm - 8:26 pmABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 39mnonstop

$435American Airlines

Fri, Oct 23 - Wed, Oct 28

7:09 pm - 10:25 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 16mnonstop

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

2h 33mnonstop

$435American Airlines

Sat, Oct 24 - Sun, Oct 25

10:35 am - 5:16 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

5h 41m1 stop Atlanta Hartsfield-Jackson

6:39 am - 12:13 pmABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

6h 34m1 stop Atlanta Hartsfield-Jackson

$455Delta

Sat, Oct 24 - Sun, Oct 25

11:33 am - 5:16 pmMDW Chicago Midway-ABE Allentown-Bethlehem

4h 43m1 stop Atlanta Hartsfield-Jackson

6:39 am - 11:54 amABE Allentown-Bethlehem-MDW Chicago Midway

6h 15m1 stop Atlanta Hartsfield-Jackson

$455Delta

Sat, Oct 24 - Sun, Oct 25

6:20 am - 5:16 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

9h 56m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson

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

6h 54m1 stop Atlanta Hartsfield-Jackson

$460Delta

Sat, Oct 24 - Sun, Oct 25

7:00 am - 5:16 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

9h 16m2 stops Detroit Metropolitan Wayne County Atlanta Hartsfield-Jackson

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

6h 54m1 stop Atlanta Hartsfield-Jackson

$460Delta

Wed, Oct 21 - Sun, Oct 25

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

2h 13mnonstop

11:48 am - 5:51 pmABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

7h 03m1 stop Charlotte Douglas

$462American Airlines

Fri, Oct 23 - Wed, Oct 28

1:55 pm - 5:02 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 07mnonstop

6:15 am - 7:49 amABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 34mnonstop

$535United Airlines

Wed, Oct 21 - Sun, Oct 25

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

2h 10mnonstop

6:15 am - 7:49 amABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 34mnonstop

$549United Airlines

Thu, Oct 22 - Sun, Oct 25

Cheap direct flights

Enter your travel dates to find the best prices.

2:35 pm - 5:41 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 06mnonstop

5:37 am - 7:15 amABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 38mnonstop

$339American Airlines

Wed, Nov 11 - Sun, Nov 15

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

2h 10mnonstop

5:42 am - 7:25 amABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 43mnonstop

$339American Airlines

Thu, Nov 12 - Thu, Nov 19

5:45 pm - 8:51 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 06mnonstop

6:00 am - 7:45 amABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 45mnonstop

$339United Airlines

Fri, Dec 25 - Fri, Jan 1

6:25 am - 9:28 amORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 03mnonstop

6:00 am - 7:36 amABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 36mnonstop

$339United Airlines

Fri, Dec 11 - Sun, Dec 13

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

2h 10mnonstop

5:37 am - 7:15 amABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 38mnonstop

$339American Airlines

Fri, Nov 6 - Sun, Nov 8

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

2h 10mnonstop

5:42 am - 7:25 amABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 43mnonstop

$339American Airlines

Mon, Nov 16 - Sat, Nov 21

8:45 pm - 11:57 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 12mnonstop

5:30 am - 7:15 amABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 45mnonstop

$339American Airlines

Wed, Dec 2 - Sat, Dec 5

7:45 pm - 10:56 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 11mnonstop

6:22 pm - 8:15 pmABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 53mnonstop

$339American Airlines

Tue, Nov 24 - Tue, Dec 1

8:45 pm - 11:57 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 12mnonstop

6:12 pm - 7:59 pmABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 47mnonstop

$339American Airlines

Wed, Dec 2 - Sat, Dec 5

2:30 pm - 5:42 pmORD Chicago O'Hare Intl-ABE Allentown-Bethlehem

2h 12mnonstop

5:30 am - 7:15 amABE Allentown-Bethlehem-ORD Chicago O'Hare Intl

2h 45mnonstop

$339American Airlines

Thu, Dec 3 - Sun, Dec 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

Nov 1

ORD5:54 pmChicago O'Hare Intl

2h 08m

ABE9:02 pmAllentown-Bethlehem

Nov 7

ABE5:36 pmAllentown-Bethlehem

2h 28m

ORD7:04 pmChicago O'Hare Intl

$359

United Airlines

Oct 31

ORD5:54 pmChicago O'Hare Intl

2h 08m

ABE9:02 pmAllentown-Bethlehem

Nov 1

ABE6:15 amAllentown-Bethlehem

2h 34m

ORD7:49 amChicago O'Hare Intl

$479

United Airlines

Nov 5

ORD5:54 pmChicago O'Hare Intl

2h 08m

ABE9:02 pmAllentown-Bethlehem

Nov 11

ABE5:36 pmAllentown-Bethlehem

2h 28m

ORD7:04 pmChicago O'Hare Intl

$494

Allegiant Air flights from Illinois to Allentown

Our best Allegiant Air deals on Illinois to Allentown flight tickets

Allegiant Air

Nov 5

BMI5:10 pmBloomington-Normal

14h 29m

1 stop

ABE8:39 amAllentown-Bethlehem

Nov 8

ABE6:00 amAllentown-Bethlehem

13h 15m

1 stop

BMI6:15 pmBloomington-Normal

$531

Allegiant Air

Nov 5

BMI5:10 pmBloomington-Normal

14h 29m

1 stop

ABE8:39 amAllentown-Bethlehem

Nov 8

ABE4:31 pmAllentown-Bethlehem

42h 56m

2 stops

BMI10:27 amBloomington-Normal

$543

Allegiant Air

Nov 1

MDW10:38 amChicago Midway

29h 29m

1 stop

ABE5:07 pmAllentown-Bethlehem

Nov 7

ABE8:30 amAllentown-Bethlehem

26h 22m

1 stop

MDW9:52 amChicago Midway

$603

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 12/3

2:30 pm-5:42 pm

Nonstop2h 12m

Allentown-Bethlehem

Sun 12/6

5:30 am-7:15 am

Nonstop2h 45m

$339

ChicagoAllentown

ORD Chicago O'Hare Intl - ABE Allentown-Bethlehem

ORDABE

Chicago O'Hare Intl

Wed 12/2

8:45 pm-11:57 pm

Nonstop2h 12m

Allentown-Bethlehem

Sat 12/5

5:30 am-7:15 am

Nonstop2h 45m

$339

Quickest round-trip

ChicagoAllentown

ORD Chicago O'Hare Intl - ABE Allentown-Bethlehem

ORDABE

Chicago O'Hare Intl

Wed 12/2

6:50 am-9:51 am

Nonstop2h 01m

Allentown-Bethlehem

Sat 12/5

6:00 am-7:33 am

Nonstop2h 33m

$339

ChicagoAllentown

ORD Chicago O'Hare Intl - ABE Allentown-Bethlehem

ORDABE

Chicago O'Hare Intl

Fri 12/25

5:45 pm-8:51 pm

Nonstop2h 06m

Allentown-Bethlehem

Fri 1/1

6:00 am-7:45 am

Nonstop2h 45m

$339

ChicagoAllentown

ORD Chicago O'Hare Intl - ABE Allentown-Bethlehem

ORDABE

Chicago O'Hare Intl

Tue 11/24

7:45 pm-10:56 pm

Nonstop2h 11m

Allentown-Bethlehem

Tue 12/1

6:22 pm-8:15 pm

Nonstop2h 53m

$339

ChicagoAllentown

ORD Chicago O'Hare Intl - ABE Allentown-Bethlehem

ORDABE

Chicago O'Hare Intl

Wed 11/11

2:35 pm-5:41 pm

Nonstop2h 06m

Allentown-Bethlehem

Sun 11/15

5:37 am-7:15 am

Nonstop2h 38m

$339

ChicagoAllentown

ORD Chicago O'Hare Intl - ABE Allentown-Bethlehem

ORDABE

Chicago O'Hare Intl

Fri 12/11

6:25 am-9:28 am

Nonstop2h 03m

Allentown-Bethlehem

Sun 12/13

6:00 am-7:36 am

Nonstop2h 36m

$339

ChicagoAllentown

ORD Chicago O'Hare Intl - ABE Allentown-Bethlehem

ORDABE

Chicago O'Hare Intl

Thu 12/3

5:30 am-12:06 pm

1 stop5h 36m

Allentown-Bethlehem

Sun 12/6

5:58 pm-11:56 pm

1 stop6h 58m

$359

ChicagoAllentown

ORD Chicago O'Hare Intl - ABE Allentown-Bethlehem

ORDABE

Chicago O'Hare Intl

Fri 12/11

9:59 am-5:13 pm

1 stop6h 14m

Allentown-Bethlehem

Sun 12/13

6:39 am-12:24 pm

1 stop6h 45m

$359

ChicagoAllentown

ORD Chicago O'Hare Intl - ABE Allentown-Bethlehem

ORDABE

Chicago O'Hare Intl

Wed 11/11

1:30 pm-10:27 pm

1 stop7h 57m

Allentown-Bethlehem

Sat 11/14

6:00 pm-11:54 pm

1 stop6h 54m

$359

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 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 Illinois to Allentown is on a Saturday when prices can be found for as low as $308. 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 $440.

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 Illinois to Allentown when you can find flight prices for as low as $319. 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 $519.

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?

You could potentially save up to 5% on your flight if you consider stops on a Illinois to Allentown flight.

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	$188
Fastest flight time	2h 01m
Direct flights	Every day
Airports in Allentown	1 airport

The best one-way flight to Allentown from Illinois in the past 72 hours is $188. The best round-trip flight deal from Illinois to Allentown found on momondo in the last 72 hours is $339.

The fastest flight from Illinois to Allentown takes 2h 01m

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 October 2026, there are 2 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 (25.84% of total bookings). The next most popular plane models are Canadair (Bombardier) Regional Jet CRJ-550 (25.84%), Airbus A321neo (10.53%), and Boeing 737-900 (8.13%).

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
United Airlines	PriceFrom $229	Free Cancellation	Rating 7.3 10,388 reviews		Search United Airlines flights
American Airlines	PriceFrom $269	Free Cancellation	Rating 7.0 12,177 reviews		Search American 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.