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$110+ 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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ABE
Aug 7 — Aug 141
Thu 8/7
Thu 8/14
1 adult, Economy
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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 August 2, 2025.

Round-trip from

$189
(American Airlines)

One-way from

$110
(American Airlines)

Popular in

March

Cheapest in

May

Average price

$379

Good round-trip deal

$458 or less

Good one-way deal

$298 or less
From Illinois to Allentown-Bethlehem
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One-way flight from Illinois to Allentown-Bethlehem
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Highest demand for flights based on searches. 15% potential increase in price ($69 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Illinois to Allentown-Bethlehem.
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Price to beat on a one-way flight from Illinois to Allentown-Bethlehem.
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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 August 2, 2025.

This American Airlines deal was found by Cheapflights users on 7/31. 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 8/278:37 amORD - ABE
1 stop4h 49mAmerican Airlines
Wed 9/32:37 pmABE - ORD
1 stop5h 28mAmerican Airlines
Deal found 7/31$189
This American Airlines deal was found by Cheapflights users on 7/31. 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 10/318:30 amSTL - ABE
1 stop4h 43mAmerican Airlines
Tue 11/44:30 pmABE - STL
1 stop7h 37mAmerican Airlines
Deal found 7/31$224
This Delta deal was found by Cheapflights users on 7/31. 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 10/114:23 pmMDW - ABE
1 stop4h 52mDelta
Tue 10/146:00 pmABE - MDW
1 stop5h 14mDelta
Deal found 7/31$229
This Delta deal was found by Cheapflights users on 7/31. 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.
Sun 8/315:45 amORD - ABE
1 stop5h 31mDelta
Tue 9/306:12 pmABE - ORD
1 stop5h 02mDelta
Deal found 7/31$229
This Mytrip deal was found by Cheapflights users on 7/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1812:05 pmORD - ABE
1 stop9h 42mMultiple Airlines
Sun 9/214:55 pmABE - ORD
2 stops27h 55mMultiple Airlines
Deal found 7/31$259
This American Airlines deal was found by Cheapflights users on 8/1. 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 8/128:15 amMLI - ABE
1 stop5h 11mAmerican Airlines
Fri 8/226:32 pmABE - MLI
1 stop5h 29mAmerican Airlines
Deal found 8/1$279
This Delta deal was found by Cheapflights users on 7/30. 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 8/53:41 pmSTL - ABE
1 stop5h 49mDelta
Sat 8/166:14 pmABE - STL
1 stop4h 48mDelta
Deal found 7/30$299
This United Airlines deal was found by Cheapflights users on 8/1. 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 8/161:51 pmORD - ABE
Nonstop2h 09mUnited Airlines
Wed 8/201:00 pmABE - ORD
Nonstop2h 32mUnited Airlines
Deal found 8/1$318
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Mon 8/113:39 pmPIA - ABE
1 stop5h 18mUnited Airlines
Sat 8/231:00 pmABE - PIA
1 stop4h 43mUnited Airlines
Deal found 7/31$364
This Delta deal was found by Cheapflights users on 7/30. 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 8/236:05 amBMI - ABE
1 stop5h 11mDelta
Tue 8/266:14 pmABE - BMI
1 stop5h 02mDelta
Deal found 7/30$369
This Mytrip deal was found by Cheapflights users on 7/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/152:30 pmSTL - ABE
2 stops7h 23mMultiple Airlines
Mon 8/186:30 amABE - STL
3 stops13h 11mMultiple Airlines
Deal found 7/29$396
This American Airlines deal was found by Cheapflights users on 7/31. 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 8/234:15 pmPIA - ABE
1 stop5h 22mAmerican Airlines
Tue 8/266:32 pmABE - PIA
1 stop5h 30mAmerican Airlines
Deal found 7/31$399

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 August 2, 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

Wed 8/27

8:37 am-2:26 pm

1 stop4h 49m

Allentown-Bethlehem

Wed 9/3

2:37 pm-7:05 pm

1 stop5h 28m

$189

ChicagoAllentown

MDW - ABE

MDWABE

Chicago Midway

Sat 10/11

4:23 pm-10:15 pm

1 stop4h 52m

Allentown-Bethlehem

Tue 10/14

6:00 pm-10:14 pm

1 stop5h 14m

$229

ChicagoAllentown

ORD - ABE

ORDABE

Chicago O'Hare Intl

Sun 8/31

5:45 am-12:16 pm

1 stop5h 31m

Allentown-Bethlehem

Tue 9/30

6:12 pm-10:14 pm

1 stop5h 02m

$229

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Wed 8/27

8:43 am-2:26 pm

1 stop4h 43m

Allentown-Bethlehem

Tue 9/2

6:32 pm-11:05 pm

1 stop5h 33m

$249

ChicagoAllentown

ORD - ABE

ORDABE

Chicago O'Hare Intl

Thu 9/18

12:05 pm-10:47 pm

1 stop9h 42m

Allentown-Bethlehem

Sun 9/21

4:55 pm-7:50 pm

2 stops27h 55m

$259

MolineAllentown

MLI - ABE

MLIABE

Moline Quad-City

Tue 8/12

8:15 am-2:26 pm

1 stop5h 11m

Allentown-Bethlehem

Fri 8/22

6:32 pm-11:01 pm

1 stop5h 29m

$279

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Tue 8/5

3:41 pm-10:30 pm

1 stop5h 49m

Allentown-Bethlehem

Sat 8/16

6:14 pm-10:02 pm

1 stop4h 48m

$299

ChicagoAllentown

ORD - ABE

ORDABE

Chicago O'Hare Intl

Sat 8/16

1:51 pm-5:00 pm

Nonstop2h 09m

Allentown-Bethlehem

Wed 8/20

1:00 pm-2:32 pm

Nonstop2h 32m

$318

BloomingtonAllentown

BMI - ABE

BMIABE

Bloomington-Normal

Sat 8/23

6:05 am-12:16 pm

1 stop5h 11m

Allentown-Bethlehem

Tue 8/26

6:14 pm-10:16 pm

1 stop5h 02m

$369

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Fri 8/15

2:30 pm-10:53 pm

2 stops7h 23m

Allentown-Bethlehem

Mon 8/18

6:30 am-6:41 pm

3 stops13h 11m

$396

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 25 results
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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 $395). 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 August 2, 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 August 2, 2025.

The most flights from USIL to ABE are scheduled on a Tuesday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing Allentown

Get insights into the airlines that provide service to Allentown. 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 Allentown. Reviews last updated August 2, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from Illinois to Allentown. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,983 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

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
7,983 reviews
Delta
8.0
Very good
7,983 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

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
8,904 reviews
Delta
8.0
Very good
7,983 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

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
7,983 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

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!
Allegiant Air
7.2
Good
702 reviews
Delta
8.0
Very good
7,983 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

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 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.

  • What are the cheapest airlines to fly from Illinois to Allentown one-way?

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $110. Users have also found prices from $126 and $224 on Delta and United Airlines, respectively.

  • 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 Chicago Midway - Allentown-Bethlehem or Lambert-St Louis - Allentown-Bethlehem.

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

    Consider Air New Zealand (74%), GoJet (74%) or United Airlines (74%) 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 $469, our data shows the cheapest flight currently is $278. When looking at the most popular route, (Chicago O'Hare Intl - Allentown-Bethlehem), you can expect to pay $242 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 $395). 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 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 August 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$158Average$278FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$245Average$488FlexibilityNo cancel feeOn-time69%

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