$128 Find Cheap Flights from Chicago O'Hare Airport to Allentown - Compare and Save

Among airlines operating Chicago O'Hare Intl Airport to Allentown flights:

• American Airlines: offers free seat selection
• United Airlines: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

2 airlines operate flights between Chicago O'Hare Intl Airport and Allentown. The airlines offering nonstop flights on this route include:

• United Airlines
• American Airlines

Flights from Chicago O'Hare Intl Airport to Allentown usually depart from Chicago O'Hare Intl (ORD) and arrive at Allentown-Bethlehem (ABE).

Here are some options for this route, based on selected ticket types and cabin classes:

• United Airlines: a cabin bag and a checked bag in First Class
• American Airlines: a cabin bag and a checked bag in First Class

Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

Two cabin classes are available on flights from Chicago O'Hare Intl Airport to Allentown:

• Economy Class
• First Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $310 round-trip via Philadelphia (PHL), compared to $326 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Canadair (Bombardier) Regional Jet CRJ-550 family is used most often on this route, operated mainly by United Airlines. Other aircraft seen on the route include Embraer 170 variants.

Connecting flights from Chicago O'Hare Intl Airport to Allentown most commonly pass through:

• Philadelphia (PHL) - 63% of one-stop connections
• Charlotte Douglas (CLT) - 37% of one-stop connections
Together, these airports account for 100% of one-stop bookings on this route.

On the Chicago O'Hare Intl Airport to Allentown route, being flexible with your departure day can save you up to 26%. Saturday is the cheapest day at $294 round-trip on average, while Tuesday is the most expensive at $394: a $100 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

Afternoon is the busiest departure period on Chicago O'Hare Intl Airport to Allentown flights, with 40% of flights leaving in that window. Evening departures account for 40%, morning flights for 20%, and night flights for 0%.

These are the earliest and latest flight times available from Chicago O'Hare Intl Airport to Allentown:

• Earliest: departs at 6:25 am and lands at 8:34 am
• Latest: departs at 7:53 pm and lands at 10:02 pm.

The flight takes about 2h 09m.

A nonstop flight from Chicago O'Hare Intl Airport to Allentown takes 2h 09m, covering 652 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $299 to $1,711. That means the highest observed fare was about 6x higher than the lowest one.

One-way fares from Chicago O'Hare Intl Airport to Allentown are currently lower than usual. Average one-way flight prices are about $192, which is 41% below the typical average for this route.

Flying via Philadelphia (PHL) gives the shortest average 1-stop total travel time at 5h 11m, compared with 5h 36m via Charlotte Douglas (CLT).

Allentown is 1 hour ahead of Chicago O'Hare Intl Airport (Eastern Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Allentown-Bethlehem Airport (ABE) hosts 5 major car rental companies, with daily rates starting from around $25 for economy cars. Top options include:
• Alamo
• Dollar
• Budget
• Hertz
• Thrifty

Round-trip flights from Chicago O'Hare Intl Airport to Allentown range from $279 to $411, with an average of $328 over the past 12 months. Anything below $279 counts as a good deal.