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$92+ 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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — ORD
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$159
(American Airlines)

One-way from

$92
(Mytrip)

Popular in

March

Cheapest in

January

Average price

$402

Good round-trip deal

$423 or less

Good one-way deal

$268 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 June 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 June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/10. 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 8/168:07 pmABE - ORD
1 stop4h 41mAmerican Airlines
Tue 8/198:37 amORD - ABE
1 stop4h 49mAmerican Airlines
Deal found 6/10$159
This Delta deal was found by Cheapflights users on 6/11. 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 8/266:00 amABE - ORD
1 stop7h 16mDelta
Wed 9/33:30 pmORD - ABE
1 stop6h 09mDelta
Deal found 6/11$197
This Mytrip deal was found by Cheapflights users on 6/11. 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 7/318:17 pmABE - ORD
1 stop26h 13mMultiple Airlines
Thu 8/711:11 amORD - ABE
1 stop11h 03mMultiple Airlines
Deal found 6/11$212
This Delta deal was found by Cheapflights users on 6/11. 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 6/286:00 amABE - STL
1 stop7h 28mDelta
Tue 7/13:42 pmSTL - ABE
1 stop5h 47mDelta
Deal found 6/11$248
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Thu 7/178:03 pmABE - STL
1 stop4h 56mAmerican Airlines
Tue 7/224:45 pmSTL - ABE
1 stop6h 42mAmerican Airlines
Deal found 6/10$249
This American Airlines deal was found by Cheapflights users on 6/11. 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 8/196:32 pmABE - MLI
1 stop5h 29mAmerican Airlines
Sun 8/247:04 amMLI - ABE
1 stop5h 22mAmerican Airlines
Deal found 6/11$249
This United Airlines deal was found by Cheapflights users on 6/10. 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 6/286:30 amABE - ORD
Nonstop2h 23mUnited Airlines
Tue 7/16:35 pmORD - ABE
Nonstop2h 20mUnited Airlines
Deal found 6/10$259
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Thu 6/268:02 pmABE - PIA
1 stop4h 57mAmerican Airlines
Mon 6/304:06 pmPIA - ABE
1 stop7h 14mAmerican Airlines
Deal found 6/10$259
This Delta deal was found by Cheapflights users on 6/10. 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 7/226:00 amABE - MDW
1 stop6h 58mDelta
Sat 7/266:00 amMDW - ABE
1 stop5h 15mDelta
Deal found 6/10$274
This Mytrip deal was found by Cheapflights users on 6/10. 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 6/269:43 pmABE - PIA
1 stop18h 15mMultiple Airlines
Mon 6/309:50 pmPIA - ABE
2 stops22h 28mMultiple Airlines
Deal found 6/10$327
This Mytrip deal was found by Cheapflights users on 6/11. 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.
Sat 7/192:22 pmABE - MDW
1 stop21h 25mAllegiant Air
Mon 7/212:54 pmMDW - ABE
2 stops21h 47mAllegiant Air
Deal found 6/11$330
This Mytrip deal was found by Cheapflights users on 6/10. 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 6/269:43 pmABE - STL
2 stops20h 21mMultiple Airlines
Mon 6/3011:28 amSTL - ABE
1 stop22h 09mMultiple Airlines
Deal found 6/10$333

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 June 12, 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 8/16

8:07 pm-11:48 pm

1 stop4h 41m

Chicago O'Hare Intl

Tue 8/19

8:37 am-2:26 pm

1 stop4h 49m

$159

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Tue 8/26

6:00 am-12:16 pm

1 stop7h 16m

Chicago O'Hare Intl

Wed 9/3

3:30 pm-10:39 pm

1 stop6h 09m

$197

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Thu 7/31

8:17 pm-9:30 pm

1 stop26h 13m

Chicago O'Hare Intl

Thu 8/7

11:11 am-11:14 pm

1 stop11h 03m

$212

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

Sat 6/28

6:00 am-12:28 pm

1 stop7h 28m

Lambert-St Louis

Mon 6/30

4:10 pm-10:29 pm

1 stop5h 19m

$248

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

Thu 7/17

8:03 pm-11:59 pm

1 stop4h 56m

Lambert-St Louis

Tue 7/22

4:45 pm-12:27 am

1 stop6h 42m

$249

AllentownMoline

ABE - MLI

ABEMLI

Allentown-Bethlehem

Tue 8/19

6:32 pm-11:01 pm

1 stop5h 29m

Moline Quad-City

Sun 8/24

7:04 am-1:26 pm

1 stop5h 22m

$249

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Sat 6/28

6:30 am-7:53 am

Nonstop2h 23m

Chicago O'Hare Intl

Tue 7/1

6:35 pm-9:55 pm

Nonstop2h 20m

$259

AllentownPeoria

ABE - PIA

ABEPIA

Allentown-Bethlehem

Thu 6/26

8:02 pm-11:59 pm

1 stop4h 57m

Greater Peoria

Mon 6/30

4:06 pm-12:20 am

1 stop7h 14m

$259

AllentownChicago

ABE - MDW

ABEMDW

Allentown-Bethlehem

Tue 7/22

6:00 am-11:58 am

1 stop6h 58m

Chicago Midway

Sat 7/26

6:00 am-12:15 pm

1 stop5h 15m

$274

AllentownPeoria

ABE - PIA

ABEPIA

Allentown-Bethlehem

Thu 6/26

9:43 pm-2:58 pm

1 stop18h 15m

Greater Peoria

Mon 6/30

9:50 pm-9:18 pm

2 stops22h 28m

$327

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 31 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 June 12, 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 June 12, 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).

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 June 12, 2025.
To help decide which airline to fly from Allentown to Illinois, see what other customers have to say about Delta, United Airlines and Allegiant Air. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

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
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

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
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

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
7.3
Good
725 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

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
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

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.

  • 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 $110 and Allegiant Air from $152 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 (69%), Air New Zealand (69%) or United Airlines (46%) 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 $660, our data shows the cheapest flight currently is $192. When looking at the most popular route, (Allentown-Bethlehem - Chicago O'Hare Intl), you can expect to pay $212 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.

See more FAQs

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Alternative routes for Allentown to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$193Average$496FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$196Average$305FlexibilityNo cancel feeOn-time71%
DeltaCheapest$228Average$463FlexibilityNo cancel feeOn-timeN/A

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