$106 Find Cheap Flights from Allentown to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Allentown to Illinois departing on 4/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Allentown to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Allentown to Illinois, as well as popular online travel agencies
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Cheap Flights from Allentown to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Chicago
Chicagononstop$209
Moline
Moline1 stop$269
Peoria
Peoria1 stop$374
Bloomington
Bloomington1 stop$387
St. Louis
St. Louis1 stop$269
Paducah
Paducah1 stop$502
Chicago
Chicagononstop$209
Moline
Moline1 stop$269
Peoria
Peoria1 stop$374
Bloomington
Bloomington1 stop$387
St. Louis
St. Louis1 stop$269
Paducah
Paducah1 stop$502

Book Cheap Allentown to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Allentown to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Allentown to Illinois

Thu, Mar 19 - Sat, Mar 21
United Airlines Logo
10:31 am - 12:00 pm
ABE
-
ORD
2h 29mnonstop
United Airlines Logo
7:00 am - 9:56 am
ORD
-
ABE
1h 56mnonstop
$209United Airlines
Sat, Aug 15 - Tue, Aug 18
American Airlines Logo
5:18 pm - 6:39 pm
ABE
-
ORD
2h 21mnonstop
American Airlines Logo
7:10 am - 1:26 pm
ORD
-
ABE
5h 16m
1 stop
$219American Airlines
Sat, Apr 18 - Tue, Apr 21
United Airlines Logo
5:40 pm - 7:00 pm
ABE
-
ORD
2h 20mnonstop
United Airlines Logo
6:50 am - 9:48 am
ORD
-
ABE
1h 58mnonstop
$220United Airlines
Thu, Apr 30 - Sun, May 3
United Airlines Logo
2:15 pm - 3:40 pm
ABE
-
ORD
2h 25mnonstop
United Airlines Logo
10:30 am - 1:38 pm
ORD
-
ABE
2h 08mnonstop
$225United Airlines
Tue, Mar 24 - Tue, Mar 31
American Airlines Logo
7:41 am - 2:16 pm
ABE
-
ORD
7h 35m
1 stop
American Airlines Logo
4:00 pm - 11:31 pm
ORD
-
ABE
6h 31m
1 stop
$229American Airlines
Wed, Aug 12 - Sat, Aug 15
Delta Logo
6:30 am - 12:08 pm
ABE
-
ORD
6h 38m
1 stop
Delta Logo
1:35 pm - 10:56 pm
ORD
-
ABE
8h 21m
2 stops
$234Delta
Sat, Jul 25 - Wed, Jul 29
Delta Logo
5:40 pm - 9:45 pm
ABE
-
MDW
5h 05m
1 stop
Delta Logo
1:00 pm - 10:56 pm
MDW
-
ABE
8h 56m
2 stops
$234Delta
Mon, Apr 20 - Wed, Apr 22
Multiple Airlines Logo
1:41 pm - 11:22 am
ABE
-
ORD
22h 41m
1 stop
Multiple Airlines Logo
3:31 pm - 2:56 pm
ORD
-
ABE
22h 25m
1 stop
$237Multiple Airlines
Sat, Jun 27 - Tue, Jun 30
American Airlines Logo
6:00 am - 7:21 am
ABE
-
ORD
2h 21mnonstop
American Airlines Logo
11:55 am - 6:39 pm
ORD
-
ABE
5h 44m
1 stop
$239American Airlines
Mon, Apr 20 - Thu, Apr 23
Multiple Airlines Logo
1:41 pm - 11:22 am
ABE
-
ORD
22h 41m
1 stop
Multiple Airlines Logo
5:34 pm - 8:10 pm
ORD
-
ABE
25h 36m
1 stop
$244Multiple Airlines
Booking Insights

KAYAK's insights & trends for Allentown to Illinois flights

Get data-powered insights and trends into flights from Allentown to Illinois to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Allentown to Illinois flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Illinois from Allentown found in the last 72 hours was to Chicago, at $279 round-trip. The most popular route is from Allentown (ABE) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $279.

Can I save money by flying with a layover from Allentown to Illinois?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $364, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Allentown to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Allentown to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Allentown to Illinois is October, when tickets cost $309 (return) on average. On the other hand, the most expensive months are June and April, when the average cost of round-trip tickets is $446 and $418 respectively.

What’s the cheapest day of the week to fly from Allentown to Illinois?

The average price of all round-trip flights from Allentown to Illinois clicked on KAYAK for each day over the last 12 months.

When flying from Allentown to Illinois, you should consider leaving on a Friday and avoid Mondays if you are looking for the best rates. For your return to Allentown, you’ll find the best rates on Saturdays and the most expensive ones on Mondays.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Allentown to Illinois, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Allentown to Illinois, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$106
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Allentown to Chicago O'Hare Airport

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Allentown to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Allentown to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Allentown to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Allentown to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Allentown to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Allentown to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Allentown to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Allentown to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Illinois?

    The cheapest time of day to fly to Illinois is generally in the evening, when round-trip flights cost $482 on average. Morning departures are around 15% more expensive than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the morning, which is peak travel time and where the average cost of a ticket is $556.

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Allentown to the following destinations at these prices or less: Chicago $272 one-way - $380 round-trip

Reviews of the top 3 airlines serving from Allentown to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Allentown to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Allentown to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8237 reviews
7.9Comfort
8.5Crew
7.8Entertainment
8.1Boarding
7.2Food
Airline reviews

2+hrs delay without any reason provided and a cramped flight

2.0 MediocreYogendra Kumar, Feb 2026
DTW - MDT
Read more Delta reviews

2+hrs delay without any reason provided and a cramped flight

We waited an hour on the runway to get a gate in Orlando

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

Flight was delayed due to crew being not on time

Flight crew issues delayed my flight by 2 1/2 hours. Causing me to miss my connection.

The staff on board and gate was nice - a welcome change from the usual. We also arrived early, which was a great benefit, given that it takes 30 minutes plus to get bags at SRQ.

The staff was frielndly. The plane was terrible, it was too small and should be decommissioned. There were no back seat screens at all. The only beverages we had a choice from was coffee, tea or water. The only bathroom in the back was behind the flight attendant's jump seat and wasn't working. And I literally felt like I was sitting on top of the guy next to me. It was terribly hot in the plane and we had to sit on the tarmac in Chicago for 1/2 hour due to congestion in Mpls. Wouldn't they have know that before they even boarded us so that we could have sat in comfort in the terminal?

Never got on it. Was re-routed through Detroit and am still in airports 12 hours later waiting for my connecting plane to arrive.

Delta has too many delays now days. It is 1:06 am now. I was supposed to land in Norfolk at 10:30 pm. I got re-booked through Detroit and I’m still in Detroit. I hope to be landed in Norfolk by 3am. I’ve been in airports for 12 hours as of right now. There is a weather delay now but most delays lately have been maintenance.

Very Very late. Subsequent flights left an hour before ours

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

United Airlines is my preferred airlines and I am thankful for Gary who also help support me on the phone to switch my flight literally last min.

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

They did the one thing that really matters - got to Chicago early.

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

The gate agent had a really bad attitude and refused to help me get on the standby list. She just handed me a card and said I needed to call a number. I asked her to help with the AA app on my phone and she just shrugged and said she didnt know. After a few phone calls, I eventually just went to a different gate agent on the other side of the terminal and got the help I needed.

Overall, my last three trips on American Airlines have all been either delayed or "rescheduled" due to mechanical issues. At least on delay caused me to miss two possible connecting flights each later than the first. My last option for my last connection required the assistance of the onsite service desk (O'Hare Airport). The wait time for the service desk was such that it jeopardized getting booked on the last connecting flight available for the night. Suffice it to say, my latest experiences with American Airlines have caused me extensive loss of productive business and personal time and can therefore be classified as significantly less than satisfactory.

Waiting for gate in RDU for more than 20mins is crazy.

American Airlines was great and worked very hard to change my ticket so I could get an earlier, direct flight back to Dallas. However, I was informed that Kayak made mistakes with my itinerary and classified my ticket as desiring to be on the earlier flight instead of taking the necessary step of calling AA to get me on the standby list. This ended up keeping me from being added to the standby list and delayed me getting home by 6 hours. I am happy to discuss this further with Kayak so they can correct their procedures so this won't happen again.

Waited for oxygen tanks for 30 minutes after boarding was complete.

We flew in first class. The crew did not offer drinks before the flight took off, but they treated us well during the flight. The food was excellent. There was actually too much food served, but it was nice to have all the options.

Update to handle the delay was very bad, crews no smiles or welcome or thanks. Don’t care attitude

Pilot navigated severe weather/snow storm with skill. Described his intentions clearly

Little warm on the plane and delayed for an hour

So excited very proud first of all I wanna thank kayak all updates very professional and fast alart And amazing cabin crew so nice to me they deserve big salute

Everything you need to know for your flight from Allentown to Illinois

Information on your arrival and departure airports