starting at $314
starting at $324
starting at $175
starting at $230
Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Chicago to Allentown. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
A non-stop flight is the most convenient and comfortable way to fly from Chicago to Allentown, despite the fact that sometimes flights with transfers can cost significantly less.
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Answers to questions about the route that travelers are most interested in.
We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
The route Chicago — Allentown is served by many carriers — 4 in total, including American Airlines, United Airlines, Allegiant Air, and Frontier Airlines. This gives passengers wide opportunities: from finding the lowest fare (from $175) to selecting flights by schedule or service class. Our service aggregates data from multiple booking systems so you can compare offers in one place. This saves time and money: no need to check dozens of sites — just pick the right option and book online.
starting at $314
starting at $324
starting at $175
starting at $230
Chicago — Allentown
06/06/2026
Departure
Direct flight
AA4271
starting at $411
Chicago — Allentown
06/07/2026
Departure
Direct flight
AA4271
starting at $332
Chicago — Allentown
06/08/2026
Departure
Direct flight
AA4271
starting at $521
Chicago — Allentown
06/08/2026
Departure
Direct flight
UA4463
starting at $324
Chicago — Allentown
06/10/2026
Departure
Direct flight
AA4271
starting at $314
There are most likely no direct flights on the Chicago — Allentown route
We couldn't find any special offers for flights from Chicago to Allentown
The cheapest one-way flight from Chicago to Allentown departs on 06/06/2026, is operated by Allegiant Air and costs $175
There is no information about the cheapest roundtrip flight from Chicago to Allentown
Fastest flight from Chicago to Allentown takes 9h 39m
There are direct flights on this route 4 days a week: Su, Mo, We, and Sa
The distance between Chicago and Allentown is 1027km (637 miles). There are 10 direct flights from Chicago to Allentown. The time difference between Chicago and Allentown is 1h. Flights from Chicago begin at 10:30 AM. The latest flight from Chicago departs at 8:10 PM
The cheapest flight ticket from Chicago to Allentown according to data for the last 48 hours costs $175
Often the best time to buy tickets from Chicago to Allentown is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Chicago to Allentown can be found flying in these months: June.
The fastest flights from Chicago to Allentown start from 9 hours 39 minutes in the air.
The following airlines operate direct flights on the route Chicago — Allentown: American Airlines, United Airlines
We carefully collect statistics on the search and pricing of airlines and, based on these data, we make an assumption about future prices. Thus, you can better understand which season is the cheapest to fly from Chicago to Allentown