Cheap flights from Allentown to Illinois from $80
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 Illinois departing on 9/13. 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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American Airlines flights from Allentown to Illinois
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How to get the cheapest flight ticket from Allentown to Illinois
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 Illinois?
The cheapest month to fly to Illinois from Allentown is in January. Flight prices, which tend to average around $279, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $279.
What is the cheapest day to depart on your flight to Illinois?
The cheapest day to depart from Allentown to Illinois is on a Saturday when prices can be found for as low as $485. Flights from Allentown to Illinois on a Monday will generally be more expensive and average around $681. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Illinois?
Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Allentown to Illinois during this time can be as low as $281. Flights in the morning are often more expensive with an average ticket price of $581.
What is the cheapest Allentown-Bethlehem to Illinois flight route?
Fly from Allentown-Bethlehem to Chicago O'Hare Intl for the best Allentown-Bethlehem - Illinois flight prices
How far in advance should I book a flight to Illinois?
You are more likely to see cheaper flights to Illinois from Allentown when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $415 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Allentown for as low as $317 on momondo.
What cabin class options are available on Allentown-Bethlehem to Illinois flights?
There are 4 cabin classes available to choose from on Allentown-Bethlehem to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Allentown-Bethlehem to Illinois?
American Airlines, Delta, and Allegiant Air are the most popular carriers operating from Allentown-Bethlehem to Illinois
What airlines fly to Illinois?
American Airlines, United Airlines and Frontier are the top three most popular airlines that fly to Illinois from Allentown according to our data. American Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 6 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.
How many flights depart from Allentown to Illinois on average per day?
4 flights are operational daily from Allentown to Illinois 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 Illinois on average per week?
28 flights are operational weekly from Allentown to Illinois as of June 2025. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.
Cheap Allentown to Illinois flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Allentown to Illinois
When did momondo last update prices for flights from Allentown-Bethlehem Airport to Illinois?
Prices for flights from Allentown-Bethlehem Airport to Illinois refresh daily.
How many operators does momondo search for flights from Allentown-Bethlehem Airport to Illinois?
As of June 2025, there are 3 operators available to choose from for flights from Allentown-Bethlehem Airport to Illinois.
How old do you have to be to fly from Allentown-Bethlehem Airport to Illinois?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Allentown-Bethlehem Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Allentown to Illinois?
momondo data reveals that the most frequently booked plane model on the route from Allentown to Illinois is Canadair (Bombardier) Regional Jet CRJ-550, representing 29.47% of all bookings. The subsequent popular models are Airbus A321neo at 12.11%, Airbus A320neo at 9.47%, and Boeing 737-800 at 7.50%.
Best airlines flying from Allentown to Illinois
Compare and see reviews for airlines that fly from Allentown to Illinois with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $193 | Free Cancellation | Rating 7.4 8,810 reviews | |||
| PriceFrom $196 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $228 | Free Cancellation | Rating 8.0 7,964 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Allentown to Illinois?
It is quick and easy to find Allentown to Illinois 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 Illinois that suits you.
Can I find flights from Allentown to Illinois with flexible booking policies on momondo?
All flight searches from Allentown to Illinois on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Allentown to Illinois?
Once you have performed a search for Allentown to Illinois flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Allentown to Illinois right now. Can momondo alert me if prices change?
Price alerts on flights to Illinois from Allentown are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.