CHI - ABE

$126 Find Cheap Flights from Chicago to Allentown - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Allentown departing on 9/2. 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 Allentown

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Allentown, 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 Chicago to Allentown, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$269
Typical prices: $475-$319
American Airlines
Wed 7/1Sun 7/5
ORD - ABE • Non-stop
Cheapest one-way
$126
Typical prices: $165-$468
Multiple Airlines
Wed 9/2
ORD - ABE • 1 stop
Top airlines
Cheapest • from $269 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with American Airlines and United Airlines. Average duration is 2h 08m
Direct flights
Direct flights
+1
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Direct flights
Direct flights
+1
Top routes
Cheapest
Most popular
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $245 (round-trip)
Shortest trip • 4h 47m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 51% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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We hope you love your trip to Allentown!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Chicago to Allentown (CHI-ABE)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to Allentown 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 Chicago to Allentown

Wed, Jul 1 - Sun, Jul 5
American Airlines Logo
1:29 pm - 4:38 pm
ORD
-
ABE
2h 09mnonstop
American Airlines Logo
6:01 am - 7:30 am
ABE
-
ORD
2h 29mnonstop
$269American Airlines
Sat, Jul 18 - Wed, Jul 22
American Airlines Logo
7:59 pm - 11:08 pm
ORD
-
ABE
2h 09mnonstop
American Airlines Logo
6:01 am - 7:30 am
ABE
-
ORD
2h 29mnonstop
$278American Airlines
Thu, Jul 2 - Tue, Jul 7
United Airlines Logo
6:50 am - 9:58 am
ORD
-
ABE
2h 08mnonstop
United Airlines Logo
10:35 am - 11:59 am
ABE
-
ORD
2h 24mnonstop
$279United Airlines
Fri, Jul 17 - Sun, Jul 19
United Airlines Logo
6:50 am - 9:58 am
ORD
-
ABE
2h 08mnonstop
United Airlines Logo
6:15 am - 7:45 am
ABE
-
ORD
2h 30mnonstop
$293United Airlines
Sat, Jul 11 - Wed, Jul 15
Delta Logo
5:30 am - 12:10 pm
ORD
-
ABE
5h 40m
1 stop
Delta Logo
1:08 pm - 8:31 pm
ABE
-
ORD
8h 23m
2 stops
$294Delta
Thu, Jul 2 - Mon, Jul 6
Delta Logo
6:00 am - 12:27 pm
MDW
-
ABE
5h 27m
1 stop
Delta Logo
6:10 pm - 10:17 pm
ABE
-
MDW
5h 07m
1 stop
$299Delta
Sat, Jun 27 - Mon, Jun 29
Delta Logo
5:30 am - 12:27 pm
ORD
-
ABE
5h 57m
1 stop
Delta Logo
6:10 pm - 11:59 pm
ABE
-
ORD
6h 49m
1 stop
$299Delta
Fri, Sep 4 - Mon, Sep 7
Multiple Airlines Logo
7:55 am - 11:05 pm
ORD
-
ABE
14h 10m
1 stop
Multiple Airlines Logo
7:50 pm - 12:25 pm
ABE
-
ORD
17h 35m
1 stop
$301Multiple Airlines
Thu, Jul 2 - Mon, Jul 6
Delta Logo
1:49 pm - 11:08 pm
MDW
-
ABE
8h 19m
2 stops
Delta Logo
6:10 pm - 10:17 pm
ABE
-
MDW
5h 07m
1 stop
$304Delta
Sat, Jul 11 - Wed, Jul 15
Delta Logo
5:30 am - 12:10 pm
ORD
-
ABE
5h 40m
1 stop
Delta Logo
1:08 pm - 8:31 pm
ABE
-
ORD
8h 23m
2 stops
$304Delta
Booking Insights

KAYAK's insights & trends for Chicago to Allentown flights

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

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

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

What is the cheapest Chicago to Allentown flight route?

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

The cheapest return flight from Chicago to Allentown costs $269 on the route between Chicago O'Hare Intl Airport (ORD) and Allentown (ABE). It is also the most popular route.

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

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

Your flight ticket price will generally be cheaper if you fly to Allentown on a Saturday and more expensive on a Monday. On your return trip to Chicago, you should consider flying back on a Friday, and avoid Sundays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago to Allentown, 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 Chicago to Allentown is December, where tickets cost $92 (return) on average. On the other hand, the most expensive months are April and June, where the average cost of round-trip tickets is $239 and $234 respectively.

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

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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $279 on average.

Good to know

Low seasonFebruary
Cheapest flight$126
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly and prices are also 18% lower on average.
Flight from Chicago O'Hare Airport to Allentown

When to book flights from Chicago to Allentown

Are your dates flexible? Find out the best times to travel from Chicago to Allentown based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Chicago to Allentown

  • What is the cheapest flight from Chicago to Allentown?

    In the last 5 days, the lowest price for a flight from Chicago to Allentown was $126 for a one-way ticket and $269 for a round-trip.

  • Do I need a passport to fly between Chicago and Allentown?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Chicago to Allentown?

    There are 2 airports in Chicago (Chicago Midway and Chicago O'Hare Intl.) and only 1 airport in Allentown (Allentown-Bethlehem). The cheapest flights are generally found on the Chicago O'Hare Airport to Allentown-Bethlehem flight route.

  • Which airlines offer Wi-Fi service onboard planes from Chicago to Allentown?

    Only American Airlines offers inflight Wi-Fi service on the Chicago to Allentown flight route.

  • Which aircraft models fly most regularly from Chicago to Allentown?

    The Canadair (Bombardier) Regional Jet CRJ-550 is the aircraft model that flies most regularly on the Chicago to Allentown flight route.

  • Which airline alliances offer flights from Chicago to Allentown?

    oneworld, and Star Alliance are the airline alliances operating flights between Chicago and Allentown, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Chicago to Allentown?

    There are nonstop flights from Chicago to Allentown on a daily basis.

  • Which is the best airline for flights from Chicago to Allentown, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Chicago to Allentown are United Airlines and American Airlines. With an average price for the route of $359 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $269 and an overall rating of 7.1.

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

    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 Chicago to Allentown.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Allentown from Chicago 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 Chicago to Allentown?

    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 to Allentown with an airline and back to Chicago with another airline.

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

    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 to Allentown from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Chicago to Allentown

  • Looking for a cheap flight? 25% of our users found flights on this route for $293 or less one-way and $269 or less round-trip.

Prefer to fly direct from Chicago to Allentown?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Chicago to Allentown-Bethlehem.
Find which airlines fly direct from Chicago to Allentown-Bethlehem Airport, which days they fly and book direct flights.

Direct departures

Chicago to Allentown-Bethlehem

Monday

American Airlines,United Airlines

American Airlines,United Airlines

Tuesday

American Airlines,United Airlines

American Airlines,United Airlines

Wednesday

American Airlines,United Airlines

American Airlines,United Airlines

Thursday

American Airlines,United Airlines

American Airlines,United Airlines

Friday

American Airlines,United Airlines

American Airlines,United Airlines

Saturday

American Airlines,United Airlines

American Airlines,United Airlines

Sunday

American Airlines,United Airlines

American Airlines,United Airlines

See more direct flights

Direct returns

Allentown-Bethlehem to Chicago

Monday

American Airlines,United Airlines

American Airlines,United Airlines

Tuesday

American Airlines,United Airlines

American Airlines,United Airlines

Wednesday

American Airlines,United Airlines

American Airlines,United Airlines

Thursday

American Airlines,United Airlines

American Airlines,United Airlines

Friday

American Airlines,United Airlines

American Airlines,United Airlines

Saturday

American Airlines,United Airlines

American Airlines,United Airlines

Sunday

American Airlines,United Airlines

American Airlines,United Airlines

See more direct flights

Reviews of the top airlines flying from Chicago to Allentown

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Allentown. 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 Chicago to Allentown? 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.
7.4
United AirlinesOverall score based on 9804 reviews
8.1Crew
7.3Comfort
7.1Entertainment
7.7Boarding
6.6Food
Airline reviews

Boarded early; and arrived home 40 mins early. After a long flight, it’s nice to be back home early. These flights have no amenities; no snacks. So need to bring your own

10.0 ExcellentJanice, Jun 2026
ORD - ILM
Read more United Airlines reviews

Boarded early; and arrived home 40 mins early. After a long flight, it’s nice to be back home early. These flights have no amenities; no snacks. So need to bring your own

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

Several missed and almost missed connections. It felt like everything was being patched together last minute without enough resources and it ended up being an extremely stressful experience that basically ruined our weekend on the west coast. What a waste.

Crew was friendly. Seats are too narrow, particularly when a big person is in the adjacent seat, but I understand this is due to smaller planes usually flight into Lincoln. I have experienced several flight delays going out and coming into Lincoln airport, I say maybe 50% or higher of the flights I've taken out of this airport have been delayed.

Great flight. Boarded efficiently. Arrived early at CLT. There was no in flight entertainment on this aircraft. Great crew.

The seat was comfortable. There was a lot of turbulence. If it weren't for that,it would have been okay.

Poor communication, flight was delayed for preventable reasons. I missed my connection.

No meal service to the back of the plane as it started late or was too slow to get it out before it was time to land.

It was so much better than expected, Ohare is not such a pleasant experience but American Airlines with the new, clean aeroplane and free Wi-Fi was outstanding and the crew so pleasant and helpful.

It wa sort of on time; the cab was left with some trash

American Airlines II: Delay Boogaloo. Multiple gate changes, delays, boarded and then MORE delays. I hate to say this won’t matter, but posting stuff about major corporations in 2026 is a post-modern “scream into the void.” Was multiple hours late coming home, so there you go.

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

Original flight was on time, then late, then changed gates...4 times. Once our newest plane came in, it was fine.

I almost missed my flight and they helped me out enormously

Delays experienced in boarding/take off due to incoming plane delayed. However, the boarding time/depart time in the app was significantly delayed in providing these updates. Usually not updated until an hour after we should have already boarded. Poorly managed.

Moved to earlier flight which unexpectedly had maintenance issues initially indicated as quick fix to ultimately plane changes. Moved back to original flight, also delayed. In all cases customer updates and communication very unclear, no updates on drivers for delays.

Typical AA - late by 90+ mn. Gate changed twice... Changed the departure time 6 times No explanation, no communication on reasons for delay I travel with AA twice a year... and it is consistently very poor.. I will continue to use AA only when i have to.

The gate got changed several times and the flight was delayed over an hour. Awful experience

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

Information on your arrival and departure airports