$136 Find Cheap Flights from Allentown to Chicago O'Hare Airport - Compare and Save

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

• American Airlines: offers extra legroom; offers free seat selection
• United Airlines: offers extra legroom; offers free seat selection

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

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

• United Airlines
• American Airlines

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

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 Economy Class
• American Airlines: a cabin bag and a checked bag in Business Class

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

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

• Economy Class
• Business Class
• First Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $290 round-trip via Atlanta Hartsfield-Jackson (ATL), compared to $365 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.

One-stop flights from Allentown to Chicago O'Hare Intl Airport most commonly connect through:

• Philadelphia (PHL) - 66% of one-stop connections
• Charlotte Douglas (CLT) - 25% of one-stop connections
• Atlanta Hartsfield-Jackson (ATL) - 8% of one-stop connections

Philadelphia (PHL) handles the largest share of one-stop connections on this route.

On the Allentown to Chicago O'Hare Intl Airport route, being flexible with your departure day can save you up to 36%. Saturday is the cheapest day at $331 round-trip on average, while Sunday is the most expensive at $511: a $180 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

Morning is the busiest departure period on Allentown to Chicago O'Hare Intl Airport flights, with 60% of flights leaving in that window. Evening departures account for 40%, afternoon flights for 0%, and night flights for 0%.

Some of the most popular sights in Chicago O'Hare Intl Airport are Magnificent Mile, Grant Park and River North. These are among the most viewed places in Chicago O'Hare Intl Airport on KAYAK.

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

• Earliest: departs at 5:37 am and lands at 8:10 am
• Latest: departs at 6:47 pm and lands at 9:20 pm.

The flight takes about 2h 33m.

Last-minute fares on this route - booked within 2 weeks of departure - run 31% above the route average of $363. Book 25 weeks before departure for the lowest fares.

A nonstop flight from Allentown to Chicago O'Hare Intl Airport takes 2h 33m, 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 $268 to $1,780. That means the highest observed fare was about 7x higher than the lowest one.

One-way fares from Allentown to Chicago O'Hare Intl Airport are currently lower than usual. Average one-way flight prices are about $206, which is 30% below the typical average for this route.

Flying via Philadelphia (PHL) gives the shortest average 1-stop total travel time at 5h 16m, compared with 5h 46m via Charlotte Douglas (CLT) and 6h 24m via Atlanta Hartsfield-Jackson (ATL).

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

Chicago O'Hare Intl Airport (ORD) hosts 5 major car rental companies, with daily rates starting from around $17 for economy cars. Top options include:
• Routes Car & Truck Rentals
• Europcar
• Hertz
• Dollar
• Ace

Round-trip flights from Allentown to Chicago O'Hare Intl Airport range from $286 to $467, with an average of $363 over the past 12 months. Anything below $286 counts as a good deal.