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Cheap flights from Allentown to Illinois from $129

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 7/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Allentown to Illinois

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:00 am - 11:57 pm
ABE
-
STL
18h 57m
1 stop
Multiple Airlines Logo
4:19 pm - 7:57 pm
STL
-
ABE
26h 38m
1 stop
$258Multiple Airlines
Thu, May 28 - Thu, Jun 4
United Airlines Logo
10:38 am - 11:55 am
ABE
-
ORD
2h 17mnonstop
United Airlines Logo
6:35 am - 9:38 am
ORD
-
ABE
2h 03mnonstop
$269United Airlines
Sat, Jun 27 - Mon, Jun 29
Multiple Airlines Logo
4:38 pm - 12:25 pm
ABE
-
ORD
20h 47m
1 stop
Multiple Airlines Logo
8:05 am - 11:10 pm
ORD
-
ABE
14h 05m
1 stop
$275Multiple Airlines
Mon, Jul 13 - Fri, Jul 17
Delta Logo
6:30 am - 12:53 pm
ABE
-
STL
7h 23m
1 stop
Delta Logo
6:00 am - 12:08 pm
STL
-
ABE
5h 08m
1 stop
$277Delta
Tue, Sep 15 - Tue, Sep 22
United Airlines Logo
10:38 am - 11:55 am
ABE
-
ORD
2h 17mnonstop
United Airlines Logo
6:35 am - 9:38 am
ORD
-
ABE
2h 03mnonstop
$280United Airlines
Thu, Jul 2 - Thu, Jul 9
American Airlines Logo
5:16 pm - 6:43 pm
ABE
-
ORD
2h 27mnonstop
American Airlines Logo
8:10 pm - 11:19 pm
ORD
-
ABE
2h 09mnonstop
$287American Airlines
Tue, Jun 23 - Tue, Jun 30
Delta Logo
1:12 pm - 6:42 pm
ABE
-
ORD
6h 30m
1 stop
Delta Logo
9:48 am - 5:25 pm
ORD
-
ABE
6h 37m
1 stop
$289Delta
Wed, Jun 10 - Sat, Jun 13
Allegiant Air Logo
10:00 am - 4:57 pm
ABE
-
MLI
7h 57m
1 stop
Allegiant Air Logo
2:06 pm - 7:06 pm
MLI
-
ABE
28h 00m
1 stop
$330Allegiant Air
Sat, May 9 - Wed, May 13
Allegiant Air Logo
10:00 am - 11:29 am
ABE
-
MLI
26h 29m
2 stops
Allegiant Air Logo
2:06 pm - 7:06 pm
MLI
-
ABE
28h 00m
1 stop
$477Allegiant Air
Sat, May 9 - Wed, May 13
American Airlines Logo
12:00 pm - 11:37 pm
ABE
-
PIA
12h 37m
2 stops
American Airlines Logo
6:23 pm - 12:22 am
PIA
-
ABE
4h 59m
1 stop
$543American Airlines
Sat, May 9 - Wed, May 13

American Airlines flights from Allentown to Illinois

Our best American Airlines deals on Allentown to Illinois flight tickets
American Airlines
Jun 23
ABE5:16 pmAllentown-Bethlehem
2h 27m
ORD6:43 pmChicago O'Hare Intl
Jun 30
ORD8:10 pmChicago O'Hare Intl
2h 09m
ABE11:19 pmAllentown-Bethlehem
$287
American Airlines
Jun 23
ABE5:16 pmAllentown-Bethlehem
2h 27m
ORD6:43 pmChicago O'Hare Intl
Jun 30
ORD5:34 pmChicago O'Hare Intl
5h 47m
1 stop
ABE12:21 amAllentown-Bethlehem
$297
American Airlines
Aug 19
ABE5:11 pmAllentown-Bethlehem
2h 33m
ORD6:44 pmChicago O'Hare Intl
Sep 5
ORD7:10 pmChicago O'Hare Intl
2h 11m
ABE10:21 pmAllentown-Bethlehem
$319

United Airlines flights from Allentown to Illinois

Our best United Airlines deals on Allentown to Illinois flight tickets
United Airlines
Jun 27
ABE10:38 amAllentown-Bethlehem
2h 17m
ORD11:55 amChicago O'Hare Intl
Jun 29
ORD6:35 amChicago O'Hare Intl
2h 03m
ABE9:38 amAllentown-Bethlehem
$269
United Airlines
Jul 2
ABE10:38 amAllentown-Bethlehem
2h 17m
ORD11:55 amChicago O'Hare Intl
Jul 5
ORD6:35 amChicago O'Hare Intl
2h 03m
ABE9:38 amAllentown-Bethlehem
$280
United Airlines
May 20
ABE2:15 pmAllentown-Bethlehem
2h 25m
ORD3:40 pmChicago O'Hare Intl
May 23
ORD7:00 amChicago O'Hare Intl
2h 03m
ABE10:03 amAllentown-Bethlehem
$281

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 April 28, 2026.
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

Cheapest round-trip

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

Thu 5/28

6:00 am-11:57 pm

1 stop18h 57m

Lambert-St Louis

Thu 6/4

4:19 pm-7:57 pm

1 stop26h 38m

$258
Quickest round-trip

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Sat 6/27

10:38 am-11:55 am

Nonstop2h 17m

Chicago O'Hare Intl

Mon 6/29

6:35 am-9:38 am

Nonstop2h 03m

$269

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Mon 7/13

4:38 pm-12:25 pm

1 stop20h 47m

Chicago O'Hare Intl

Fri 7/17

8:05 am-11:10 pm

1 stop14h 05m

$275

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

Tue 9/15

6:30 am-12:53 pm

1 stop7h 23m

Lambert-St Louis

Tue 9/22

6:00 am-12:08 pm

1 stop5h 08m

$277

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Thu 7/2

10:38 am-11:55 am

Nonstop2h 17m

Chicago O'Hare Intl

Thu 7/9

6:35 am-9:38 am

Nonstop2h 03m

$280

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Tue 6/23

5:16 pm-6:43 pm

Nonstop2h 27m

Chicago O'Hare Intl

Tue 6/30

8:10 pm-11:19 pm

Nonstop2h 09m

$287

AllentownChicago

ABE - ORD

ABEORD

Allentown-Bethlehem

Wed 6/10

1:12 pm-6:42 pm

1 stop6h 30m

Chicago O'Hare Intl

Sat 6/13

9:48 am-5:25 pm

1 stop6h 37m

$289

AllentownMoline

ABE - MLI

ABEMLI

Allentown-Bethlehem

Sat 5/9

10:00 am-4:57 pm

1 stop7h 57m

Moline Quad-City

Wed 5/13

2:06 pm-7:06 pm

1 stop28h 00m

$330

AllentownMoline

ABE - MLI

ABEMLI

Allentown-Bethlehem

Sat 5/9

10:00 am-11:29 am

2 stops26h 29m

Moline Quad-City

Wed 5/13

2:06 pm-7:06 pm

1 stop28h 00m

$477

AllentownPeoria

ABE - PIA

ABEPIA

Allentown-Bethlehem

Sat 5/9

12:00 pm-11:37 pm

2 stops12h 37m

Greater Peoria

Wed 5/13

6:23 pm-12:22 am

1 stop4h 59m

$543

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 May. Flight prices, which tend to average around $95, 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 May, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $102.

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

The cheapest day to depart from Allentown to Illinois is on a Friday when prices can be found for as low as $434. Flights from Allentown to Illinois on a Sunday will generally be more expensive and average around $637. 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 afternoon. Flights from Allentown to Illinois during this time can be as low as $445. Flights in the morning are often more expensive with an average ticket price of $539.

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 from Allentown 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 $416 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 $331 on momondo.

Can stopping save me money on Allentown to Illinois flights?

You could potentially save up to 42% 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

$263

Fastest flight time

2h 17m

Direct flights

Every day

Airports in Illinois

98 airports
The best one-way flight to Illinois from Allentown in the past 72 hours is $263. The best round-trip flight deal from Allentown to Illinois found on momondo in the last 72 hours is $392.
The fastest flight from Allentown to Illinois takes 2h 17m
Direct flights go from Allentown to Illinois every day.
There are 98 airports in Illinois. From Allentown there are direct flights to Chicago O'Hare Intl (ORD).
Search flight deals

Frequently asked questions about flying from Allentown to Illinois

  • 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
7.1
11,677 reviews
Search American Airlines flights
United AirlinesPriceFrom $209Free CancellationRating
7.4
9,672 reviews
Search United Airlines flights
DeltaPriceFrom $229Free CancellationRating
7.9
8,467 reviews
Search Delta 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.

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