Cheap flights from Allentown to Chicago from $100
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 Chicago departing on 9/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Allentown to Chicago
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 Chicago?
The month of January is, on average, the cheapest month to fly to Chicago from Allentown, with most prices found around $279. If you’re not able to fly to Chicago in January, then February is your next best option. Flight prices from Allentown to Chicago during February average around $279.
What is the cheapest day to depart on your flight to Chicago?
The cheapest day to depart on your flight to Chicago is on a Saturday when prices can be found for as low as $485. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Allentown to Chicago for around $681.
What is the cheapest time of day to depart on your flight to Chicago?
Our most recent data shows that the best time of day to fly to Chicago is in the evening. Flights from Allentown to Chicago during this time can be as low as $281. In contrast, the most expensive time of day to depart to Chicago is in the morning when prices are around $581.
What is the cheapest Allentown-Bethlehem to Chicago flight route?
Fly from Allentown-Bethlehem to Chicago O'Hare Intl for the best Allentown-Bethlehem - Chicago flight prices
How far in advance should I book a flight to Chicago?
You are more likely to see cheaper flights to Chicago from Allentown when booking 14 weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around $415 when searching 14 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from Allentown for as low as $317 on momondo.
What cabin class options are available on Allentown-Bethlehem to Chicago flights?
There are 4 cabin classes available to choose from on Allentown-Bethlehem to Chicago flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on Allentown to Chicago flights?
You could potentially save up to 57% on your flight if you consider stops on a Allentown to Chicago flight.
How have Allentown to Chicago flight prices changed over time?
What is the cheapest airline that flies from Allentown-Bethlehem to Chicago?
American Airlines, Delta, and United Airlines are the most popular carriers operating from Allentown-Bethlehem to Chicago
What airlines fly to Chicago?
American Airlines, United Airlines and Frontier are the top three most popular airlines that fly to Chicago from Allentown according to our data. American Airlines is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Chicago. Keep in mind that there are 6 different airlines that fly to Chicago on a routine basis, so you have a few additional options to choose from.
How many flights depart from Allentown to Chicago on average per day?
4 flights are operational daily from Allentown to Chicago as of June 2025. The most popular departure time for this route is 6:00AM, with 50% of flights per day taking off at noon.
How many flights depart from Allentown to Chicago on average per week?
The number of flights available between Allentown and Chicago is 28 per week as of June 2025. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.
When to book flights from Allentown to Chicago
Cheap Allentown to Chicago (ABE to CHI) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Allentown to Chicago
How far is Allentown-Bethlehem to Chicago by plane?
A flight from Allentown-Bethlehem to Chicago will travel around 636.8 mi. In terms of flight time, this usually takes a little over 2h 20m.
When did momondo last update prices for flights from Allentown-Bethlehem Airport to Chicago?
Prices for flights from Allentown-Bethlehem Airport to Chicago refresh daily.
How many operators does momondo search for flights from Allentown-Bethlehem Airport to Chicago?
The number of operators available for flights from Allentown-Bethlehem Airport to Chicago is 3 as of June 2025.
How old do you have to be to fly from Allentown-Bethlehem Airport to Chicago?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Allentown-Bethlehem Airport to Chicago.
What documentation or ID do you need to fly to Chicago?
The required travel and health documents for your Chicago trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chicago. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Allentown to Chicago?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Allentown to Chicago is Canadair (Bombardier) Regional Jet CRJ-550 (29.47% of total bookings). The next most popular plane models are Airbus A321neo (12.11%), Airbus A320neo (9.47%), and Boeing 737-800 (7.50%).
What is the most popular airline from Allentown to Chicago?
momondo data reveals that the most frequently booked airline on the route from Allentown to Chicago is United Airlines, representing 77% of all bookings. The subsequent popular airline is American Airlines at 23%.
Best airlines flying from Allentown to Chicago
Compare and see reviews for airlines that fly from Allentown to Chicago with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $193 | Free Cancellation | Rating 7.4 8,809 reviews | |||
| PriceFrom $196 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $228 | Free Cancellation | Rating 8.0 7,964 reviews |
United Airlines Flights From Allentown to Chicago
United Airlines flight deals from Allentown to Chicago start from $193 round-trip. Over the 14 United Airlines flights for this route in a normal week, average airfare is usually $370 round-trip - but some users have found much cheaper deals with momondo.
Traveling to a place near Chicago?
Book flights to Chicago if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Allentown to Chicago?
It is quick and easy to find Allentown to Chicago 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 Chicago that suits you.
Can I find flights from Allentown to Chicago with flexible booking policies on momondo?
momondo does allow users to show only those flights to Chicago from Allentown which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Allentown to Chicago?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Allentown to Chicago.
I’m not ready to book a flight from Allentown to Chicago right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Allentown to Chicago now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Chicago and let you know when they change.