$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 4/13. 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$514
Peoria
Peoria1 stop$320
Bloomington
Bloomington1 stop$671
St. Louis
St. Louis1 stop$269
Paducah
Paducah1 stop$573
Chicago
Chicagononstop$209
Moline
Moline1 stop$514
Peoria
Peoria1 stop$320
Bloomington
Bloomington1 stop$671
St. Louis
St. Louis1 stop$269
Paducah
Paducah1 stop$573

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

Sat, Apr 18 - Mon, Apr 20
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
$209United Airlines
Wed, Aug 12 - Wed, Aug 26
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
Tue, May 12 - Fri, Aug 14
United Airlines Logo
5:35 pm - 7:00 pm
ABE
-
ORD
2h 25mnonstop
United Airlines Logo
7:00 am - 10:06 am
ORD
-
ABE
2h 06mnonstop
$221United Airlines
Fri, Jun 12 - Mon, Jun 15
United Airlines Logo
2:23 pm - 3:52 pm
ABE
-
ORD
2h 29mnonstop
United Airlines Logo
10:32 am - 1:48 pm
ORD
-
ABE
2h 16mnonstop
$225United Airlines
Fri, Mar 13 - Mon, Mar 16
United Airlines Logo
6:51 pm - 8:20 pm
ABE
-
ORD
2h 29mnonstop
United Airlines Logo
7:00 am - 9:56 am
ORD
-
ABE
1h 56mnonstop
$226United Airlines
Tue, Mar 24 - Wed, Apr 1
Delta Logo
5:58 pm - 11:54 pm
ABE
-
ORD
6h 56m
1 stop
Delta Logo
5:30 am - 12:16 pm
ORD
-
ABE
5h 46m
1 stop
$229Delta
Tue, Apr 14 - Sat, Apr 18
Delta Logo
5:59 pm - 10:28 pm
ABE
-
MDW
5h 29m
1 stop
Delta Logo
6:00 am - 12:12 pm
MDW
-
ABE
5h 12m
1 stop
$229Delta
Wed, Mar 25 - Wed, Apr 1
Delta Logo
6:32 am - 4:43 pm
ABE
-
ORD
11h 11m
2 stops
Delta Logo
5:30 am - 12:16 pm
ORD
-
ABE
5h 46m
1 stop
$234Delta
Sat, May 2 - Tue, May 5
American Airlines Logo
12:00 pm - 4:21 pm
ABE
-
ORD
5h 21m
1 stop
American Airlines Logo
3:26 pm - 11:28 pm
ORD
-
ABE
7h 02m
1 stop
$249American Airlines
Tue, Mar 24 - Mon, Apr 6
Allegiant Air Logo
11:18 am - 9:09 am
ABE
-
PIA
22h 51m
1 stop
Allegiant Air Logo
5:02 pm - 11:54 am
PIA
-
ABE
17h 52m
1 stop
$478Allegiant Air
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.

How much is a round-trip flight from Allentown to Illinois?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Allentown to Illinois departing in April.

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 $259 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 $259.

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 $447 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 $479 on average. Morning departures are around 16% 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 $554.

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 $275 one-way - $365 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 8215 reviews
8.1Boarding
7.9Comfort
7.8Entertainment
7.2Food
8.5Crew
Airline reviews

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

2.0 MediocreBenjamin, Feb 2026
ATL - ORF
Read more Delta reviews

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

This is my worse experience with Delta. My colleagues and I were traveling to ICT for work. Usually we connect in Dallas, but this year we decided to book with Delta and connect in Atlanta. We were excited to fly with Delta because we hear great things and Delta is one of my top choices when choosing an airline for travel. On the connecting flights to and from Wichita/Atlanta - it felt hot and uncomfortable on the plane. The plane to ICT was smaller and older and did not have any wi-fi or entertainment. The most terrible experience was at boarding in Atlanta both times traveling to Wichita and then back to Tampa. First on our flight from ATL to ICT - the attendant scanning our boarding pass made us go back to the line when we went up to scan our passes to wait. After a few minutes, she allowed us to come back up to scan but then she asked what boarding zone we were. We told her zone 5, and since we were standing on the wrong side of the small rope partition, she made us go back to stand on the right side. There was another gentleman that came up to board and scan his pass, and she mentioned he was also on the wrong side but she let him go through. Our group had to walk back and forth for no reason, causing an unnecessary delay to board the plane. We have never experienced anything like this, especially when the boarding area was completely empty and everyone already boarded since boarding was earlier than the original boarding time. On our flight from ATL to TPA, the attendants scanning our boarding passes had us scan our passes twice, not explaining to us what was going on. They automatically started tagging our carry on bags and did not explain to us or tell us what was going on and why this was happening. Obviously we knew our bags were being forced to check in but with no reason. There was no announcement or mention and I have never had anyone force me to check in my bag before boarding the plane. We assumed the overhead bins were full but when we boarded the plane, there was a lot of empty bins and a lot of spaces to put our bags. We all were disappointed and frustrated with Delta and will be hesitant to fly Delta again or anytime soon.

Boarding and crew were fantastic, but I paid for a window seat with no window. Seat 11D on a CRJ-900 apparently does not have a window. Lesson learned.

Terrible. Four hour delay because Delta could not find crew to man the aircraft. Terrible communication. Terrible insight into the delays. One of the worst flight experiences I’ve had.

The landing was the worst I’ve experienced with a flight.

The crew, and fellow passengers, were super gracious and kind. There seemed to be plenty of bin space even though the plane was full. It’s nice to get a glass of wine with dinner in Premiere seating, and there was a lot of food.

First flight out and was 85 minutes delayed. Notification came out way too late

Delta flights recently are always delayed AND at jfk tney get the gates further away (need To walk 20’ to get to them/all the way at the end of the terminal). Not sure whats happening but price doesnt match experience!

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

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

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

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

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

Information on your arrival and departure airports