Cheap flights from Illinois to Allentown 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 Illinois to Allentown 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 Illinois to Allentown
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 Allentown?
The month of May is, on average, the cheapest month to fly to Allentown from Illinois, with most prices found around $269. If you aren’t able to travel to Allentown during the month of May, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $278.
What is the cheapest day to depart on your flight to Allentown?
The cheapest day to depart from Illinois to Allentown is on a Saturday when prices can be found for as low as $377. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Allentown on Monday is $671.
What is the cheapest time of day to depart on your flight to Allentown?
In the morning is the cheapest time of day to fly from Illinois to Allentown when you can find flight prices for as low as $262. Flying to Allentown in the morning is an ideal time because this is during off-peak travel hours. Flights at noon are often more expensive with an average ticket price of $486.
What is the cheapest Illinois to Allentown-Bethlehem flight route?
Fly from Chicago O'Hare Intl to Allentown-Bethlehem for the best Illinois - Allentown-Bethlehem flight prices
What cabin class options are available on Illinois to Allentown-Bethlehem flights?
There are 2 cabin classes available to choose from on Illinois to Allentown-Bethlehem 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 Illinois to Allentown flights?
You could potentially save up to 62% on your flight if you consider stops on a Illinois to Allentown flight.
What is the cheapest airline that flies from Illinois to Allentown-Bethlehem?
American Airlines, Delta, and Allegiant Air are the most popular carriers operating from Illinois to Allentown-Bethlehem
What airlines fly to Allentown?
American Airlines, United Airlines and Frontier are the top three most popular airlines that fly to Allentown from Illinois according to our data. American Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Allentown. Keep in mind that there are 6 different airlines that fly to Allentown on a routine basis, so you have a few additional options to choose from.
How many flights depart from Illinois to Allentown on average per day?
As of June 2025, 5 flights take off from Illinois and land in Allentown each day. The most common flight departure time for this route is 6:00PM, with 60% of daily flights taking off in the evening.
How many flights depart from Illinois to Allentown on average per week?
As of June 2025, 35 flights take off from Illinois and land in Allentown each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.
Cheap Illinois to Allentown flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Illinois to Allentown
When did momondo last update prices for flights from Illinois to Allentown-Bethlehem Airport?
Prices for flights from Illinois to Allentown-Bethlehem Airport refresh daily.
How many operators does momondo search for flights from Illinois to Allentown-Bethlehem Airport?
As of June 2025, there are 3 operators available to choose from for flights from Illinois to Allentown-Bethlehem Airport.
How old do you have to be to fly from Illinois to Allentown-Bethlehem Airport?
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 Illinois to Allentown-Bethlehem Airport.
What documentation or ID do you need to fly to Allentown-Bethlehem Airport?
The required travel and health documents for your Allentown-Bethlehem Airport 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 Allentown-Bethlehem Airport. 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 Illinois to Allentown?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Illinois to Allentown is Canadair (Bombardier) Regional Jet CRJ-550 (39.83% of total bookings). The next most popular plane models are Boeing 737-800 (8.47%), Airbus A320neo (7.63%), and Airbus A320-100/200 (6.78%).
Best airlines flying from Illinois to Allentown
Compare and see reviews for airlines that fly from Illinois to Allentown with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $173 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $259 | Free Cancellation | Rating 7.4 8,809 reviews |
Traveling to a place near Allentown?
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Why should I use momondo to find a flight deal from Illinois to Allentown?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Allentown for you.
Can I find flights from Illinois to Allentown with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Illinois to Allentown flights to just show those with flexible booking policies.
How can momondo help me find flights from Illinois to Allentown?
momondo provides multiple filters to help you find the best flight to Allentown from Illinois. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Illinois to Allentown right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Illinois to Allentown flights. All you need is a valid email address and we will do the rest; it is that quick and easy.