$171 Find Cheap Flights from Calgary to Chicago - Compare and Save

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

• Earliest: departs at 12:00 pm and lands at 3:38 pm
• Latest: departs at 3:18 pm and lands at 6:56 pm.

The flight takes about 3h 38m.

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

• Economy Class
• Business Class
• First Class

A nonstop flight from Calgary to Chicago O'Hare Intl Airport takes 3h 38m, covering 1,381 miles.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Round-trip flights from Calgary to Chicago O'Hare Intl Airport range from $263 to $432, with an average of $345 over the past 12 months. Anything below $263 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 18% above the $345 route average. Book 21 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $223 round-trip via Dallas/Fort Worth (DFW), compared to $347 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $21–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Boeing 737-800 family is used most often on this route, operated mainly by United Airlines and Air Canada. Other aircraft seen on the route include Boeing 737-700 Passenger/BBJ1 (winglets) variants.

Afternoon is the busiest departure period on Calgary to Chicago O'Hare Intl Airport flights, with 100% of flights leaving in that window. Morning departures account for 0%, evening flights for 0%, and night flights for 0%.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $301 to $1,044. That means the highest observed fare was about 3x higher than the lowest one.

Two airlines offer in-flight Wi-Fi on Calgary to Chicago O'Hare Intl Airport flights:

• American Airlines
• WestJet

Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

One-way fares from Calgary to Chicago O'Hare Intl Airport are currently lower than usual. Average one-way flight prices are about $178, which is 17% below the typical average for this route.

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
• Ace
• Dollar

Flights from Calgary to Chicago O'Hare Intl Airport usually depart from Calgary (YYC) and arrive at Chicago O'Hare Intl (ORD).

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

• Toronto Pearson Intl (YYZ) - 62% of one-stop connections
• Salt Lake City (SLC) - 11% of one-stop connections
• Ottawa (YOW) - 11% of one-stop connections
• Minneapolis St Paul (MSP) - 9% of one-stop connections

Yes. Flexible dates can save you up to 17% on flights from Calgary to Chicago O'Hare Intl Airport. Monday is the cheapest departure day at $303 round-trip on average, while Thursday is the most expensive at $362, a difference of $59.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

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

• United Airlines
• American Airlines
• WestJet

Flying via Toronto Pearson Intl (YYZ) gives the shortest average 1-stop total travel time at 8h 09m, compared with 8h 25m via Minneapolis St Paul (MSP) and 9h 30m via Ottawa (YOW).

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

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

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

• American Airlines: offers extra legroom; offers free seat selection
• United Airlines: offers free seat selection
• WestJet: offers free seat selection
• Air Canada: offers free seat selection
• Delta: offers extra legroom; offers free seat selection

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

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

• American Airlines: a cabin bag and a checked bag in Economy Class
• WestJet: a cabin bag and a checked bag in Economy Class
• Air Canada: a cabin bag and a checked bag in Economy Class

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