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$99+ 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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — ORD
jul. 6 — jul. 131
dom. 7/6
dom. 7/13
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 julio 1, 2025.

Round-trip from

$161
(American Airlines)

One-way from

$99
(Delta)

Popular in

March

Cheapest in

January

Average price

$354

Good round-trip deal

$531 or less

Good one-way deal

$308 or less
From Allentown-Bethlehem to Illinois
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One-way flight from Allentown-Bethlehem to Illinois
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High demand for flights, 4% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in July 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 julio 1, 2025.

This American Airlines deal was found by Cheapflights users on 6/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/28:03 pmABE - ORD
1 stop4h 54mAmerican Airlines
mar. 8/54:59 pmORD - ABE
1 stop6h 28mAmerican Airlines
Deal found 6/29$161
This Delta deal was found by Cheapflights users on 6/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/2612:56 pmABE - ORD
1 stop7h 13mDelta
sáb. 8/309:47 amORD - ABE
1 stop6h 47mDelta
Deal found 6/29$197
This Delta deal was found by Cheapflights users on 6/30. 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.
mié. 8/2012:56 pmABE - MDW
1 stop5h 51mDelta
sáb. 8/2310:31 amMDW - ABE
1 stop6h 03mDelta
Deal found 6/30$197
This Mytrip deal was found by Cheapflights users on 6/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/144:03 pmABE - ORD
1 stop7h 19mMultiple Airlines
jue. 8/215:05 amORD - ABE
1 stop12h 55mMultiple Airlines
Deal found 6/30$215
This American Airlines deal was found by Cheapflights users on 6/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/141:56 pmABE - STL
1 stop6h 27mAmerican Airlines
lun. 8/186:26 amSTL - ABE
1 stop7h 00mAmerican Airlines
Deal found 6/30$249
This Delta deal was found by Cheapflights users on 7/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/276:12 pmABE - MLI
1 stop5h 30mDelta
mar. 10/75:00 pmMLI - ABE
1 stop4h 52mDelta
Deal found 7/1$249
This Delta deal was found by Cheapflights users on 6/30. 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.
vie. 7/186:14 pmABE - STL
1 stop6h 39mDelta
mar. 7/223:41 pmSTL - ABE
1 stop5h 49mDelta
Deal found 6/30$254
This American Airlines deal was found by Cheapflights users on 7/1. 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.
jue. 9/251:50 pmABE - MLI
2 stops10h 15mAmerican Airlines
sáb. 10/48:19 amMLI - ABE
1 stop5h 03mAmerican Airlines
Deal found 7/1$254
This American Airlines deal was found by Cheapflights users on 6/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/158:03 pmABE - PIA
1 stop5h 09mAmerican Airlines
mar. 7/224:11 pmPIA - ABE
1 stop7h 16mAmerican Airlines
Deal found 6/30$254
This Mytrip deal was found by Cheapflights users on 6/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/144:03 pmABE - STL
2 stops22h 29mMultiple Airlines
lun. 8/182:30 pmSTL - ABE
2 stops7h 23mMultiple Airlines
Deal found 6/30$316
This Mytrip deal was found by Cheapflights users on 7/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/319:16 pmABE - MDW
2 stops17h 40mAllegiant Air
lun. 8/42:46 pmMDW - ABE
2 stops21h 55mAllegiant Air
Deal found 7/1$353
This United Airlines deal was found by Cheapflights users on 6/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/156:30 amABE - MLI
1 stop4h 52mUnited Airlines
sáb. 7/193:45 pmMLI - ABE
1 stop5h 10mUnited Airlines
Deal found 6/30$484

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 julio 1, 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

sáb. 8/2

8:03 pm-11:57 pm

1 stop4h 54m

Chicago O'Hare Intl

mar. 8/5

4:59 pm-12:27 am

1 stop6h 28m

$161

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

mar. 8/26

12:56 pm-7:09 pm

1 stop7h 13m

Chicago O'Hare Intl

sáb. 8/30

9:47 am-5:34 pm

1 stop6h 47m

$197

AllentownChicago

ABE - MDW

ABEMDW

Allentown-Bethlehem

mié. 8/20

12:56 pm-5:47 pm

1 stop5h 51m

Chicago Midway

sáb. 8/23

10:31 am-5:34 pm

1 stop6h 03m

$197

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

jue. 9/4

11:46 am-10:40 am

2 stops23h 54m

Chicago O'Hare Intl

lun. 9/8

6:30 am-8:40 pm

1 stop13h 10m

$218

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

jue. 8/14

1:56 pm-7:23 pm

1 stop6h 27m

Lambert-St Louis

lun. 8/18

6:26 am-2:26 pm

1 stop7h 00m

$249

AllentownMoline

ABE - MLI

ABEMLI

Allentown-Bethlehem

sáb. 9/27

6:12 pm-10:42 pm

1 stop5h 30m

Moline Quad-City

mar. 10/7

5:00 pm-10:52 pm

1 stop4h 52m

$249

AllentownMoline

ABE - MLI

ABEMLI

Allentown-Bethlehem

jue. 9/25

1:50 pm-11:05 pm

2 stops10h 15m

Moline Quad-City

sáb. 10/4

8:19 am-2:22 pm

1 stop5h 03m

$254

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

vie. 7/18

6:14 pm-11:53 pm

1 stop6h 39m

Lambert-St Louis

mar. 7/22

3:41 pm-10:30 pm

1 stop5h 49m

$254

AllentownPeoria

ABE - PIA

ABEPIA

Allentown-Bethlehem

mar. 7/15

8:03 pm-12:12 am

1 stop5h 09m

Greater Peoria

mar. 7/22

4:11 pm-12:27 am

1 stop7h 16m

$254

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

jue. 8/14

4:03 pm-1:32 pm

2 stops22h 29m

Lambert-St Louis

lun. 8/18

2:30 pm-10:53 pm

2 stops7h 23m

$316

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

Showing 1-10 of 27 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 julio 1, 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 julio 1, 2025.

The most flights from ABE to USIL are scheduled on a Monday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

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 julio 1, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and United 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,973 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,858 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Allegiant Air
7.2
Good
710 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    One-way options have recently been found by users for as low as $99 on Delta. Other airlines that offer cheap prices include American Airlines from $101 and Alaska Airlines from $158 one-way.

  • 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 - Lambert-St Louis.

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

    Consider GoJet (72%), United Airlines (72%) or Air New Zealand (72%) 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 $650, our data shows the cheapest flight currently is $176. 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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Alternative routes for Allentown to Illinois

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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 julio 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$196Average$307FlexibilityNo cancel feeOn-time71%
DeltaCheapest$228Average$468FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$266Average$541FlexibilityNo cancel feeOn-time69%

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