HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Allentown

$121+ Cheap flights from Illinois to Allentown (ABE)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ABE
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Allentown with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Illinois to Allentown

Keep the following information in mind while searching for Illinois to Allentown flight deals. Data was last updated September 15, 2025.

Round-trip from

$189
(American Airlines)

One-way from

$121
(Kiwi.com)

Popular in

March

Cheapest in

May

Average price

$359

Good round-trip deal

$359 or less

Good one-way deal

$448 or less
From Illinois to Allentown-Bethlehem
Search Deals
One-way flight from Illinois to Allentown-Bethlehem
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals
Price to beat on a round-trip flight from Illinois to Allentown-Bethlehem.
Search Deals
Price to beat on a one-way flight from Illinois to Allentown-Bethlehem.
Search Deals

Find flight deals from Illinois to Allentown

Cheapest flights from Illinois to Allentown
Explore the most affordable flight options available from Illinois to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/315:20 amORD - ABE
1 stop7h 53mAmerican Airlines
Sat 11/15:53 pmABE - ORD
1 stop4h 32mAmerican Airlines
Deal found 9/14$189
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/307:25 amORD - ABE
Nonstop2h 13mUnited Airlines
Sat 10/45:28 pmABE - ORD
Nonstop2h 27mUnited Airlines
Deal found 9/15$229
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/35:17 pmORD - ABE
1 stop14h 19mMultiple Airlines
Sun 10/512:14 pmABE - ORD
1 stop11h 35mMultiple Airlines
Deal found 9/15$231
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1810:46 amORD - ABE
2 stops10h 26mDelta
Mon 11/246:00 pmABE - ORD
1 stop7h 02mDelta
Deal found 9/14$234
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/156:45 amORD - ABE
2 stops9h 34mDelta
Tue 11/1812:56 pmABE - ORD
1 stop6h 51mDelta
Deal found 9/14$244
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/316:30 pmORD - ABE
Nonstop2h 11mUnited Airlines
Sat 11/15:22 pmABE - ORD
Nonstop2h 33mUnited Airlines
Deal found 9/14$248
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/317:10 amORD - ABE
1 stop6h 03mAmerican Airlines
Mon 11/34:30 pmABE - ORD
1 stop8h 07mAmerican Airlines
Deal found 9/14$253
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/78:30 amSTL - ABE
1 stop4h 43mAmerican Airlines
Wed 10/226:00 amABE - STL
1 stop7h 06mAmerican Airlines
Deal found 9/14$254
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/306:01 amSTL - ABE
1 stop5h 03mDelta
Sat 10/412:48 pmABE - STL
1 stop7h 17mDelta
Deal found 9/15$259
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/137:51 pmORD - ABE
1 stop12h 35mMultiple Airlines
Mon 10/206:15 amABE - ORD
1 stop28h 53mMultiple Airlines
Deal found 9/14$265
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/181:09 pmORD - ABE
1 stop8h 03mDelta
Sun 11/236:00 pmABE - ORD
1 stop7h 02mDelta
Deal found 9/14$269
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/48:37 amORD - ABE
1 stop4h 45mAmerican Airlines
Sun 10/57:59 pmABE - ORD
1 stop4h 40mAmerican Airlines
Deal found 9/14$273

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois 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, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Illinois to Allentown that are best for you.

Fly from

Illinois

Fly to

Allentown

Route

Depart

Return

Price

ChicagoAllentown

ORD - ABE

ORDABE

Chicago O'Hare Intl

Fri 10/3

7:25 am-10:38 am

Nonstop2h 13m

Allentown-Bethlehem

Sun 10/5

6:30 am-7:58 am

Nonstop2h 28m

$229

ChicagoAllentown

ORD - ABE

ORDABE

Chicago O'Hare Intl

Fri 10/3

5:17 pm-8:36 am

1 stop14h 19m

Allentown-Bethlehem

Sun 10/5

12:14 pm-10:49 pm

1 stop11h 35m

$231

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Tue 10/7

8:30 am-2:13 pm

1 stop4h 43m

Allentown-Bethlehem

Wed 10/22

6:00 am-12:06 pm

1 stop7h 06m

$254

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Tue 9/30

6:01 am-12:04 pm

1 stop5h 03m

Allentown-Bethlehem

Sat 10/4

12:48 pm-7:05 pm

1 stop7h 17m

$259

ChicagoAllentown

ORD - ABE

ORDABE

Chicago O'Hare Intl

Mon 10/13

7:51 pm-9:26 am

1 stop12h 35m

Allentown-Bethlehem

Mon 10/20

6:15 am-10:08 am

1 stop28h 53m

$265

ChicagoAllentown

ORD - ABE

ORDABE

Chicago O'Hare Intl

Tue 11/18

10:46 am-10:12 pm

2 stops10h 26m

Allentown-Bethlehem

Sun 11/23

6:00 pm-12:02 am

1 stop7h 02m

$274

MolineAllentown

MLI - ABE

MLIABE

Moline Quad-City

Sat 2/21

5:00 pm-10:52 pm

1 stop4h 52m

Allentown-Bethlehem

Wed 2/25

5:40 pm-10:34 pm

1 stop5h 54m

$274

ChicagoAllentown

ORD - ABE

ORDABE

Chicago O'Hare Intl

Sat 3/7

6:37 pm-9:47 pm

Nonstop2h 10m

Allentown-Bethlehem

Tue 3/10

5:32 pm-6:46 pm

Nonstop2h 14m

$279

PeoriaAllentown

PIA - ABE

PIAABE

Greater Peoria

Tue 10/28

6:36 am-2:13 pm

1 stop6h 37m

Allentown-Bethlehem

Sat 11/1

1:56 pm-7:49 pm

1 stop6h 53m

$279

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Thu 9/25

12:47 pm-7:29 pm

1 stop5h 42m

Allentown-Bethlehem

Sun 9/28

7:59 pm-11:53 pm

1 stop4h 54m

$284

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 53 results
1
2
3
...
6

Best time to book a flight from Illinois to Allentown

Have a flexible travel schedule? Discover the best time to fly to Allentown from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Allentown

What is the cheapest month to book a flight from Illinois to Allentown?

Currently, February is the cheapest month in which you can book a flight from Illinois to Allentown (average of $289). Flying from Illinois to Allentown in December is currently the most expensive (average of $383). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to ABE?

Find hourly flight availability from Illinois to Allentown. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

When flying from Illinois to Allentown, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Illinois to Allentown

Explore weekly flight availability from Illinois to Allentown. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 15, 2025.

The most flights from USIL to ABE are scheduled on a Monday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

Related info for your journey

Find useful and relevant information for your journey from Illinois to Allentown. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Allentown from Illinois?

    Located just 3.9 mi from the city center, Allentown-Bethlehem (ABE) is the airport most travelers will use when flying to Allentown from Illinois.

  • How long is the flight from Illinois to Allentown?

    For as low as $229, United Airlines can have you in Allentown from Illinois in 2h 13m. The distance from Illinois to Allentown is about 652 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Illinois to Allentown?

    The most popular route from Illinois to Allentown is Chicago O'Hare Intl - Allentown-Bethlehem. You may also consider Lambert-St Louis - Allentown-Bethlehem or Chicago Midway - Allentown-Bethlehem.

  • What are the most reliable airlines from Illinois to Allentown?

    Consider SkyWest Airlines (93%), United Airlines (80%) or Air New Zealand (75%) when booking your flight. These represent the most reliable airlines when flying from Illinois to Allentown.

  • What are the cheapest flights from Illinois to Allentown?

    While on average a flight from Illinois to Allentown is generally $444, our data shows the cheapest flight currently is $258. When looking at the most popular route, (Chicago O'Hare Intl - Allentown-Bethlehem), you can expect to pay $219 for that flight.

  • Can I find deals for flights from Illinois to Allentown that include hotel bookings?

    Yes. In addition to deals on Illinois to Allentown flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Allentown?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Allentown.

  • Can I find deals for business class flights from Illinois to Allentown?

    Yes. Cheapflights offers flight deals from Illinois to Allentown by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Allentown?

    Currently, February is the cheapest month in which you can book a flight from Illinois to Allentown (average of $289). Flying from Illinois to Allentown in December is currently the most expensive (average of $383). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Other flights to Allentown

Explore flights to Allentown departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 15, 2025.
Allentown to Melbourne, Florida flights
Allentown to Nashville flights
Allentown to Denver flights
Allentown to Myrtle Beach flights
Allentown to Fort Lauderdale flights
Allentown to Orlando Sanford Intl Airport flights
Allentown to Orlando Airport flights
Allentown to Melbourne, Florida flights
Allentown to Tampa flights
Allentown to Punta Gorda flights
Allentown to Philadelphia flights
Allentown to Fort Lauderdale flights
Allentown to Nashville flights
Allentown to Orlando Sanford Intl Airport flights
Allentown to Orlando Airport flights
Allentown to Myrtle Beach flights
Allentown to Sarasota flights
Allentown to Tampa flights

Top 2 airlines flying from Illinois to Allentown

Discover the top 2 airlines that operate flights from Illinois to Allentown. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$158Average$254FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$245Average$493FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.