What airlines fly to Illinois?

United Airlines, American Airlines and Frontier are the top three most popular airlines that fly to Illinois from Allentown according to our data. United Airlines is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 6 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

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

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

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

2 flights are operational daily from Allentown to Illinois as of March 2026. The most popular departure time for this route is 6:00AM, with 59% of flights per day taking off at noon.

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

18 flights are operational weekly from Allentown to Illinois as of March 2026. The most popular departure day for this route is Mon, with 33% of flights per week taking off on this day.

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

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

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

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

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

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 Allentown-Bethlehem Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$111 Cheap Flights from Allentown to Illinois in 2026

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Find the cheapest flights from Allentown to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:25 pm - 3:25 pm

ABE

ORD

25h 00m

1 stop

7:20 am - 10:18 pm

ORD

ABE

13h 58m

1 stop

$183Multiple Airlines

Fri, May 8 - Sun, May 10

6:00 am - 7:21 am

ABE

ORD

2h 21mnonstop

1:38 pm - 4:48 pm

ORD

ABE

2h 10mnonstop

$209American Airlines

Sat, Jun 27 - Tue, Jun 30

6:00 am - 7:21 am

ABE

ORD

2h 21mnonstop

5:34 pm - 12:21 am

ORD

ABE

5h 47m

1 stop

$219American Airlines

Sat, Jun 27 - Tue, Jun 30

6:51 pm - 8:20 pm

ABE

ORD

2h 29mnonstop

6:10 pm - 9:17 pm

ORD

ABE

2h 07mnonstop

$220United Airlines

Fri, Mar 27 - Sat, Apr 4

2:23 pm - 3:52 pm

ABE

ORD

2h 29mnonstop

7:00 am - 10:03 am

ORD

ABE

2h 03mnonstop

$224United Airlines

Fri, Jun 26 - Tue, Jun 30

6:15 am - 7:40 am

ABE

ORD

2h 25mnonstop

6:50 am - 9:48 am

ORD

ABE

1h 58mnonstop

$226United Airlines

Wed, Apr 8 - Tue, Apr 14

1:00 pm - 8:17 pm

ABE

ORD

8h 17m

1 stop

6:00 am - 12:08 pm

ORD

ABE

5h 08m

1 stop

$229Delta

Thu, Aug 27 - Sun, Aug 30

5:59 pm - 10:28 pm

ABE

MDW

5h 29m

1 stop

6:00 am - 12:12 pm

MDW

ABE

5h 12m

1 stop

$249Delta

Sat, Apr 18 - Thu, Apr 23

9:32 am - 5:00 pm

ABE

PIA

8h 28m

1 stop

11:07 am - 3:48 pm

PIA

ABE

27h 41m

1 stop

$405Allegiant Air

Thu, Jun 25 - Thu, Jul 2

6:30 am - 8:49 am

ABE

BMI

27h 19m

1 stop

9:39 am - 11:38 pm

BMI

ABE

12h 59m

1 stop

$492Allegiant Air

Thu, Jun 18 - Mon, Jun 22

American Airlines flights from Allentown to Illinois

Our best American Airlines deals on Allentown to Illinois flight tickets

American Airlines

Jun 27

ABE6:00 amAllentown-Bethlehem

2h 21m

ORD7:21 amChicago O'Hare Intl

Jun 30

ORD1:38 pmChicago O'Hare Intl

2h 10m

ABE4:48 pmAllentown-Bethlehem

$209

American Airlines

Jun 27

ABE6:00 amAllentown-Bethlehem

2h 21m

ORD7:21 amChicago O'Hare Intl

Jun 30

ORD5:34 pmChicago O'Hare Intl

5h 47m

1 stop

ABE12:21 amAllentown-Bethlehem

$219

American Airlines

Aug 27

ABE6:00 amAllentown-Bethlehem

2h 21m

ORD7:21 amChicago O'Hare Intl

Aug 30

ORD5:20 amChicago O'Hare Intl

7h 06m

1 stop

ABE1:26 pmAllentown-Bethlehem

$239

United Airlines flights from Allentown to Illinois

Our best United Airlines deals on Allentown to Illinois flight tickets

United Airlines

Mar 27

ABE6:51 pmAllentown-Bethlehem

2h 29m

ORD8:20 pmChicago O'Hare Intl

Apr 4

ORD6:10 pmChicago O'Hare Intl

2h 07m

ABE9:17 pmAllentown-Bethlehem

$220

United Airlines

Jun 26

ABE2:23 pmAllentown-Bethlehem

2h 29m

ORD3:52 pmChicago O'Hare Intl

Jun 30

ORD7:00 amChicago O'Hare Intl

2h 03m

ABE10:03 amAllentown-Bethlehem

$224

United Airlines

Apr 8

ABE6:15 amAllentown-Bethlehem

2h 25m

ORD7:40 amChicago O'Hare Intl

Apr 14

ORD6:50 amChicago O'Hare Intl

1h 58m

ABE9:48 amAllentown-Bethlehem

$226

Fly from

Fly to

Route

Depart

Return

Price

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Fri 5/8

3:25 pm-3:25 pm

1 stop25h 00m

Chicago O'Hare Intl

Sun 5/10

7:20 am-10:18 pm

1 stop13h 58m

$183

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Sat 6/27

6:00 am-7:21 am

Nonstop2h 21m

Chicago O'Hare Intl

Tue 6/30

1:38 pm-4:48 pm

Nonstop2h 10m

$209

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Sat 6/27

6:00 am-7:21 am

Nonstop2h 21m

Chicago O'Hare Intl

Tue 6/30

5:34 pm-12:21 am

1 stop5h 47m

$219

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Fri 3/27

6:51 pm-8:20 pm

Nonstop2h 29m

Chicago O'Hare Intl

Sat 4/4

6:10 pm-9:17 pm

Nonstop2h 07m

$220

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Fri 6/26

2:23 pm-3:52 pm

Nonstop2h 29m

Chicago O'Hare Intl

Tue 6/30

7:00 am-10:03 am

Nonstop2h 03m

$224

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Wed 4/8

6:15 am-7:40 am

Nonstop2h 25m

Chicago O'Hare Intl

Tue 4/14

6:50 am-9:48 am

Nonstop1h 58m

$226

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Thu 8/27

1:00 pm-8:17 pm

1 stop8h 17m

Chicago O'Hare Intl

Sun 8/30

6:00 am-12:08 pm

1 stop5h 08m

$229

AllentownChicago

ABE - MDW

ABEMDW

Allentown-Bethlehem

Sat 4/18

5:59 pm-10:28 pm

1 stop5h 29m

Chicago Midway

Thu 4/23

6:00 am-12:12 pm

1 stop5h 12m

$249

AllentownPeoria

ABE - PIA

ABEPIA

Allentown-Bethlehem

Thu 6/25

9:32 am-5:00 pm

1 stop8h 28m

Greater Peoria

Thu 7/2

11:07 am-3:48 pm

1 stop27h 41m

$405

AllentownBloomington

ABE - BMI

ABEBMI

Allentown-Bethlehem

Thu 6/18

6:30 am-8:49 am

1 stop27h 19m

Bloomington-Normal

Mon 6/22

9:39 am-11:38 pm

1 stop12h 59m

$492

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 Allentown to Illinois

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 Illinois?

The cheapest month to fly to Illinois from Allentown is in October. Flight prices, which tend to average around $309, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of October, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $312.

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

The cheapest day to depart from Allentown to Illinois is on a Friday when prices can be found for as low as $459. Flights from Allentown to Illinois on a Monday will generally be more expensive and average around $683. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our most recent data shows that the best time of day to fly to Illinois is in the afternoon. Flights from Allentown to Illinois during this time can be as low as $482. Flights in the morning are often more expensive with an average ticket price of $556.

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

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

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from Allentown when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $430 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Allentown for as low as $330 on momondo.

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

There are 4 cabin classes available to choose from on Allentown-Bethlehem to Illinois 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 Illinois flights?

You could potentially save up to 30% on your flight if you consider stops on a Allentown to Illinois flight.

Cheap Allentown to Illinois flight deals and tips

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

Best Price Found	$272
Fastest flight time	2h 21m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from Allentown in the past 72 hours is $272. The best round-trip flight deal from Allentown to Illinois found on momondo in the last 72 hours is $369.

The fastest flight from Allentown to Illinois takes 2h 21m

Direct flights go from Allentown to Illinois every day.

There are 98 airports in Illinois. From Allentown there are direct flights to Chicago O'Hare Intl (ORD).

Search flight deals

When did momondo last update prices for flights from Allentown-Bethlehem Airport to Illinois?
Prices for flights from Allentown-Bethlehem Airport to Illinois refresh daily.
How many operators does momondo search for flights from Allentown-Bethlehem Airport to Illinois?
As of March 2026, there are 3 operators available to choose from for flights from Allentown-Bethlehem Airport to Illinois.
How old do you have to be to fly from Allentown-Bethlehem Airport to Illinois?
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 Allentown-Bethlehem Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Allentown to Illinois?
momondo data reveals that the most frequently booked plane model on the route from Allentown to Illinois is Canadair (Bombardier) Regional Jet CRJ-550, representing 27.05% of all bookings. The subsequent popular models are Canadair (Bombardier) Regional Jet at 10.29%, Airbus A321neo at 6.10%, and Embraer 170 at 5.52%.

Best airlines flying from Allentown to Illinois

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

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $196	Free Cancellation	Rating 7.1 11,375 reviews	Search American Airlines flights
United Airlines	PriceFrom $209	Free Cancellation	Rating 7.4 9,377 reviews	Search United Airlines flights
Delta	PriceFrom $229	Free Cancellation	Rating 7.9 8,242 reviews	Search Delta flights

Why use momondo?

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

It is quick and easy to find Allentown to Illinois flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Illinois that suits you.

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

All flight searches from Allentown to Illinois on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for Allentown to Illinois flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Illinois from Allentown are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Popular cities in Illinois

Flights to New Yorkfrom $55

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Flights to Las Vegasfrom $53

Flights to Washington, D.C.from $56

Flights to Bostonfrom $76

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Flights to Dallasfrom $60

Flights to Seattlefrom $48

Cheap flights from Allentown to Illinois from $111

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 Illinois departing on 4/27. 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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How to get the cheapest flight ticket from Allentown to Illinois

What is the cheapest month to fly to Illinois?

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

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

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

How far in advance should I book a flight to Illinois?

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

Can stopping save me money on Allentown to Illinois flights?

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

What airlines fly to Illinois?

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

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

Cheap Allentown to Illinois flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Illinois

Best airlines flying from Allentown to Illinois

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

Why use momondo?

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Illinois

Popular cities in Illinois

Popular flights according to clicks in the last 7 days on momondo

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