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Cheap flights from Allentown to Illinois from $80

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Allentown to Illinois departing on 9/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Allentown to Illinois

Cheap round-trip flights

American Airlines Logo
7:00 pm - 11:12 pmABE-ORD
5h 12m1 stop
American Airlines Logo
9:51 am - 6:01 pmORD-ABE
7h 10m1 stop
$159American Airlines
Find Deal
Tue, Sep 16 - Sat, Sep 20
American Airlines Logo
7:00 pm - 11:12 pmABE-ORD
5h 12m1 stop
American Airlines Logo
9:51 am - 6:30 pmORD-ABE
7h 39m1 stop
$174American Airlines
Find Deal
Tue, Sep 9 - Tue, Sep 16
American Airlines Logo
7:59 pm - 11:39 pmABE-ORD
4h 40m1 stop
American Airlines Logo
9:51 am - 6:30 pmORD-ABE
7h 39m1 stop
$189American Airlines
Find Deal
Thu, Sep 18 - Wed, Sep 24
Logo
12:14 pm - 10:46 pmABE-ORD
11h 32m1 stop
Logo
8:49 pm - 9:26 amORD-ABE
11h 37m1 stop
$205
Find Deal
Sun, Oct 5 - Mon, Oct 6
United Airlines Logo
1:00 pm - 2:38 pmABE-ORD
2h 38mnonstop
United Airlines Logo
8:45 am - 11:52 amORD-ABE
2h 07mnonstop
$209United Airlines
Find Deal
Sat, Dec 6 - Sat, Dec 13
Logo
12:14 pm - 10:46 pmABE-ORD
11h 32m1 stop
Logo
7:29 pm - 8:54 amORD-ABE
12h 25m1 stop
$210
Find Deal
Sun, Oct 5 - Wed, Oct 8
Delta Logo
6:00 pm - 10:14 pmABE-MDW
5h 14m1 stop
Delta Logo
4:25 pm - 10:52 pmMDW-ABE
5h 27m1 stop
$229Delta
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Sat, Nov 8 - Sat, Nov 15
Delta Logo
12:48 pm - 9:34 pmABE-ORD
9h 46m2 stops
Delta Logo
5:30 am - 12:04 pmORD-ABE
5h 34m1 stop
$234Delta
Find Deal
Sat, Sep 13 - Tue, Sep 16
United Airlines Logo
5:28 pm - 6:55 pmABE-ORD
2h 27mnonstop
United Airlines Logo
6:35 pm - 9:54 pmORD-ABE
2h 19mnonstop
$237United Airlines
Find Deal
Tue, Sep 9 - Tue, Sep 16
Allegiant Air Logo
11:24 am - 8:06 amABE-BMI
21h 42m1 stop
Allegiant Air Logo
9:56 am - 2:34 pmBMI-ABE
27h 38m1 stop
$418Allegiant Air
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Thu, Oct 9 - Mon, Oct 13

United Airlines flights from Allentown to Illinois

Our best United Airlines deals on Allentown to Illinois flight tickets
United Airlines
Dec 6
ABE1:00 pmAllentown-Bethlehem
2h 38m
ORD2:38 pmChicago O'Hare Intl
Dec 13
ORD8:45 amChicago O'Hare Intl
2h 07m
ABE11:52 amAllentown-Bethlehem
$209
Find similar
United Airlines
Sep 9
ABE5:28 pmAllentown-Bethlehem
2h 27m
ORD6:55 pmChicago O'Hare Intl
Sep 16
ORD6:35 pmChicago O'Hare Intl
2h 19m
ABE9:54 pmAllentown-Bethlehem
$237
Find similar
United Airlines
Aug 29
ABE5:28 pmAllentown-Bethlehem
2h 27m
ORD6:55 pmChicago O'Hare Intl
Sep 1
ORD8:45 amChicago O'Hare Intl
2h 13m
ABE11:58 amAllentown-Bethlehem
$259
Find similar

Delta flights from Allentown to Illinois

Our best Delta deals on Allentown to Illinois flight tickets
Delta
Nov 8
ABE6:00 pmAllentown-Bethlehem
5h 14m
1 stop
MDW10:14 pmChicago Midway
Nov 15
MDW4:25 pmChicago Midway
5h 27m
1 stop
ABE10:52 pmAllentown-Bethlehem
$229
Find similar
Delta
Sep 13
ABE12:48 pmAllentown-Bethlehem
9h 46m
2 stops
ORD9:34 pmChicago O'Hare Intl
Sep 16
ORD5:30 amChicago O'Hare Intl
5h 34m
1 stop
ABE12:04 pmAllentown-Bethlehem
$234
Find similar
Delta
Nov 4
ABE6:00 pmAllentown-Bethlehem
5h 14m
1 stop
MDW10:14 pmChicago Midway
Nov 8
MDW6:00 amChicago Midway
5h 06m
1 stop
ABE12:06 pmAllentown-Bethlehem
$239
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated August 18, 2025.
Use the filters below to find and compare flights from Allentown to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Tue 9/16

7:00 pm-11:12 pm

1 stop5h 12m

Chicago O'Hare Intl

Sat 9/20

9:51 am-6:01 pm

1 stop7h 10m

$159

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Tue 9/9

7:00 pm-11:12 pm

1 stop5h 12m

Chicago O'Hare Intl

Tue 9/16

9:51 am-6:30 pm

1 stop7h 39m

$174

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Thu 9/18

7:59 pm-11:39 pm

1 stop4h 40m

Chicago O'Hare Intl

Wed 9/24

9:51 am-6:30 pm

1 stop7h 39m

$189

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Sun 10/5

12:14 pm-10:46 pm

1 stop11h 32m

Chicago O'Hare Intl

Mon 10/6

8:49 pm-9:26 am

1 stop11h 37m

$205

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Sat 12/6

1:00 pm-2:38 pm

Nonstop2h 38m

Chicago O'Hare Intl

Sat 12/13

8:45 am-11:52 am

Nonstop2h 07m

$209

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Sun 10/5

12:14 pm-10:46 pm

1 stop11h 32m

Chicago O'Hare Intl

Wed 10/8

7:29 pm-8:54 am

1 stop12h 25m

$210

AllentownChicago

ABE - MDW

ABEMDW

Allentown-Bethlehem

Sat 11/8

6:00 pm-10:14 pm

1 stop5h 14m

Chicago Midway

Sat 11/15

4:25 pm-10:52 pm

1 stop5h 27m

$229

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Sat 9/13

12:48 pm-9:34 pm

2 stops9h 46m

Chicago O'Hare Intl

Tue 9/16

5:30 am-12:04 pm

1 stop5h 34m

$234

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Tue 9/9

5:28 pm-6:55 pm

Nonstop2h 27m

Chicago O'Hare Intl

Tue 9/16

6:35 pm-9:54 pm

Nonstop2h 19m

$237

AllentownBloomington

ABE - BMI

ABEBMI

Allentown-Bethlehem

Thu 10/9

11:24 am-8:06 am

1 stop21h 42m

Bloomington-Normal

Mon 10/13

9:56 am-2:34 pm

1 stop27h 38m

$418

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from Allentown to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Allentown is in January. Flight prices, which tend to average around $279, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $279.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Allentown to Illinois is on a Saturday when prices can be found for as low as $511. Flights from Allentown to Illinois on a Monday will generally be more expensive and average around $684. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Allentown to Illinois during this time can be as low as $281. Flights in the morning are often more expensive with an average ticket price of $597.

What is the cheapest Allentown-Bethlehem to Illinois flight route?

Fly from Allentown-Bethlehem to Chicago O'Hare Intl for the best Allentown-Bethlehem - Illinois flight prices

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from Allentown when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $438 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Allentown for as low as $357 on momondo.

What cabin class options are available on Allentown-Bethlehem to Illinois flights?

There are 4 cabin classes available to choose from on Allentown-Bethlehem to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Allentown to Illinois flights?

You could potentially save up to 57% on your flight if you consider stops on a Allentown to Illinois flight.

Cheap Allentown to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Allentown to Illinois

Best Price Found

$80

Fastest flight time

2h 27m

Direct flights

Every day

Airports in Illinois

6 airports
The best one-way flight to Illinois from Allentown in the past 72 hours is $80. The best round-trip flight deal from Allentown to Illinois found on momondo in the last 72 hours is $159.
The fastest flight from Allentown to Illinois takes 2h 27m
Direct flights go from Allentown to Illinois every day.
There are 6 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Greater Peoria (PIA), Lambert-St Louis (STL), Moline Quad-City (MLI), Bloomington-Normal (BMI)
Search flight deals

  • When did momondo last update prices for flights from Allentown-Bethlehem Airport to Illinois?

    Prices for flights from Allentown-Bethlehem Airport to Illinois refresh daily.

  • How many operators does momondo search for flights from Allentown-Bethlehem Airport to Illinois?

  • How old do you have to be to fly from Allentown-Bethlehem Airport to Illinois?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Allentown-Bethlehem Airport to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Allentown to Illinois?

Best airlines flying from Allentown to Illinois

Compare and see reviews for airlines that fly from Allentown to Illinois with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $196Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $228Free CancellationRating
8.0
7,981 reviews
Search Delta flights
United AirlinesPriceFrom $270Free CancellationRating
7.4
8,925 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Allentown to Illinois?

It is quick and easy to find Allentown to Illinois flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Illinois that suits you.

Can I find flights from Allentown to Illinois with flexible booking policies on momondo?

All flight searches from Allentown to Illinois on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Allentown to Illinois?

Once you have performed a search for Allentown to Illinois flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Allentown to Illinois right now. Can momondo alert me if prices change?

Price alerts on flights to Illinois from Allentown are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Illinois trip

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