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$80+ Cheap flights from Allentown (ABE) to Illinois

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 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — ORD
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Allentown to Illinois

Keep the following information in mind while searching for Allentown to Illinois flight deals. Data was last updated September 16, 2025.

Round-trip from

$159
(American Airlines)

One-way from

$80
(American Airlines)

Popular in

June

Cheapest in

January

Average price

$390

Good round-trip deal

$374 or less

Good one-way deal

$244 or less
From Allentown-Bethlehem to Illinois
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One-way flight from Allentown-Bethlehem to Illinois
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Highest demand for flights based on searches. 9% potential increase in price ($41 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Allentown-Bethlehem to Illinois.
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Price to beat on a one-way flight from Allentown-Bethlehem to Illinois.
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Find flight deals from Allentown to Illinois

Cheapest flights from Allentown to Illinois
Explore the most affordable flight options available from Allentown to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This American Airlines deal was found by Cheapflights users on 9/16. 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 10/115:53 pmABE - ORD
1 stop7h 00mAmerican Airlines
Sat 10/187:10 amORD - ABE
1 stop5h 16mAmerican Airlines
Deal found 9/16$169
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 10/175:53 pmABE - ORD
1 stop4h 31mAmerican Airlines
Sat 10/257:10 amORD - ABE
1 stop5h 16mAmerican Airlines
Deal found 9/14$189
This American Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 10/222:43 pmABE - ORD
1 stop7h 27mAmerican Airlines
Sat 10/257:10 amORD - ABE
1 stop5h 16mAmerican Airlines
Deal found 9/16$199
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Sat 10/111:00 pmABE - ORD
Nonstop2h 32mUnited Airlines
Sat 10/186:35 pmORD - ABE
Nonstop2h 19mUnited Airlines
Deal found 9/16$209
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.
Thu 12/256:17 amABE - ORD
Nonstop2h 43mUnited Airlines
Wed 12/3110:44 amORD - ABE
Nonstop2h 11mUnited Airlines
Deal found 9/15$217
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 11/156:16 amABE - ORD
1 stop7h 10mAmerican Airlines
Sat 11/154:05 pmORD - ABE
1 stop5h 48mAmerican Airlines
Deal found 9/14$223
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 11/111:46 pmABE - ORD
1 stop5h 06mAmerican Airlines
Fri 11/142:03 pmORD - ABE
1 stop7h 49mAmerican Airlines
Deal found 9/14$224
This United Airlines deal was found by Cheapflights users on 9/16. 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 9/301:00 pmABE - ORD
Nonstop2h 32mUnited Airlines
Tue 10/77:25 amORD - ABE
Nonstop2h 13mUnited Airlines
Deal found 9/16$227
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 11/111:46 pmABE - ORD
1 stop6h 18mAmerican Airlines
Sat 11/154:05 pmORD - ABE
1 stop5h 48mAmerican Airlines
Deal found 9/14$229
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.
Thu 10/236:19 pmABE - ORD
1 stop14h 15mMultiple Airlines
Mon 10/276:23 pmORD - ABE
1 stop14h 03mMultiple Airlines
Deal found 9/14$232
This American Airlines deal was found by Cheapflights users on 9/16. 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 9/307:00 pmABE - ORD
1 stop5h 12mAmerican Airlines
Tue 10/77:10 amORD - ABE
1 stop6h 03mAmerican Airlines
Deal found 9/16$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 11/156:00 pmABE - MDW
1 stop6h 32mDelta
Tue 11/189:32 amMDW - ABE
2 stops11h 40mDelta
Deal found 9/14$234

Cheapflights Fare Finder

 
Customize your flight search to find flights from Allentown to Illinois 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 16, 2025.
Use the filters below to find and compare flights from Allentown to Illinois that are best for you.

Fly from

Allentown

Fly to

Illinois

Route

Depart

Return

Price

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Sat 2/21

5:40 pm-11:54 pm

1 stop7h 14m

Chicago O'Hare Intl

Wed 2/25

5:50 am-12:07 pm

1 stop5h 17m

$197

AllentownChicago

ABE - MDW

ABEMDW

Allentown-Bethlehem

Sat 2/21

5:40 pm-9:46 pm

1 stop5h 06m

Chicago Midway

Tue 2/24

6:00 am-12:07 pm

1 stop5h 07m

$197

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Tue 9/30

1:00 pm-2:32 pm

Nonstop2h 32m

Chicago O'Hare Intl

Tue 10/7

7:25 am-10:38 am

Nonstop2h 13m

$227

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Wed 10/1

6:12 pm-10:14 pm

1 stop5h 02m

Chicago O'Hare Intl

Sat 10/11

10:30 am-10:15 pm

2 stops10h 45m

$244

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

Fri 10/17

5:53 pm-11:58 pm

1 stop7h 05m

Lambert-St Louis

Sat 10/18

5:20 am-1:26 pm

1 stop7h 06m

$249

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Wed 10/1

6:12 pm-10:14 pm

1 stop5h 02m

Chicago O'Hare Intl

Sat 10/4

9:50 am-5:31 pm

1 stop6h 41m

$249

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

Sat 11/1

6:00 pm-10:04 pm

1 stop5h 04m

Lambert-St Louis

Sat 11/8

3:59 pm-10:15 pm

1 stop5h 16m

$249

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Sat 9/27

1:00 pm-2:32 pm

Nonstop2h 32m

Chicago O'Hare Intl

Tue 9/30

1:45 pm-4:53 pm

Nonstop2h 08m

$259

AllentownChicago

ABE - MDW

ABEMDW

Allentown-Bethlehem

Fri 1/9

5:40 pm-9:46 pm

1 stop5h 06m

Chicago Midway

Sun 1/11

6:00 am-12:07 pm

1 stop5h 07m

$264

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Mon 11/24

6:00 pm-12:02 am

1 stop7h 02m

Chicago O'Hare Intl

Tue 12/2

9:50 am-5:14 pm

1 stop6h 24m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 50 results
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Best time to book a flight from Allentown to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Allentown 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 Allentown to Illinois

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

Currently, August is the cheapest month in which you can book a flight from Allentown to Illinois (average of $245). Flying from Allentown to Illinois in March is currently the most expensive (average of $321). 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 ABE to IL?

Find hourly flight availability from Allentown to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Allentown to Illinois as you normally would.

Weekly flight availability from Allentown to Illinois

Explore weekly flight availability from Allentown to Illinois. 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 16, 2025.

The most flights from ABE to USIL are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

How much does it cost to fly round-trip from Allentown to Illinois?

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated September 16, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from Allentown to Illinois to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,924 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Allentown to Illinois. 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 from for flights from Allentown to Illinois?

    Allentown-Bethlehem (ABE), located 3.9 mi from the city center, is the airport you fly out of when you book flights from Allentown to Illinois.

  • How long is the flight from Allentown to Illinois?

    Delta, United Airlines, and American Airlines can get you from Allentown to Illinois in just under 2h 32m. Your travel time can differ by up to 4h 42m. The distance between Allentown and Illinois is about 652 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The most popular flight routes from Allentown to Illinois are Allentown-Bethlehem - Chicago O'Hare Intl, Allentown-Bethlehem - Chicago Midway and Allentown-Bethlehem - Greater Peoria.

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

    Consider SkyWest Airlines (88%), United Airlines (84%) or Air New Zealand (79%) when booking your flight. These represent the most reliable airlines when flying from Allentown to Illinois.

  • What are the cheapest flights from Allentown to Illinois?

    While on average a flight from Allentown to Illinois is generally $505, our data shows the cheapest flight currently is $159. When looking at the most popular route, (Allentown-Bethlehem - Chicago O'Hare Intl), you can expect to pay $197 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Allentown to Illinois 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 Allentown to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Allentown to Illinois (average of $245). Flying from Allentown to Illinois in March is currently the most expensive (average of $321). 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.

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Top 3 airlines flying from Allentown to Illinois

Discover the top 3 airlines that operate flights from Allentown to Illinois. 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 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$196Average$286FlexibilityNo cancel feeOn-time71%
DeltaCheapest$218Average$633FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$279Average$496FlexibilityNo cancel feeOn-time69%

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