C$ 278 Find Cheap Flights from Ottawa to Chicago O'Hare Airport – Compare and Save

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

• Air Canada: 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.

Only United Airlines operates flights between Ottawa and Chicago O'Hare Intl Airport.

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

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

• Air Canada: a carry-on bag and a checked bag in Economy Class
• United Airlines: a carry-on bag and a checked bag in Economy Class
• ANA: a carry-on bag and a checked bag in First Class

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

Only Economy Class is available on flights from Ottawa to Chicago O'Hare Intl Airport.

On this route, layover flights are cheaper than direct options on average. Layover fares average C$ 489 round-trip via Fort Lauderdale (FLL), compared to C$ 900 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge C$ 34–C$ 96 for the first checked bag in economy. Premium fares and elite status bookings typically include a free checked bag.

The Embraer 175 (Enhanced Winglets) family is used most often on this route, operated mainly by Air Canada and United Airlines. Other aircraft seen on the route include Airbus A319 variants.

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

• Toronto Pearson Intl (YYZ) – 58% of one-stop connections
• Toronto Island (YTZ) – 35% of one-stop connections
• Fort Lauderdale (FLL) – 3% of one-stop connections
• Calgary (YYC) – 3% of one-stop connections

Toronto Pearson Intl (YYZ) handles the largest share of one-stop connections on this route.

On the Ottawa to Chicago O'Hare Intl Airport route, being flexible with your departure day can save you up to 22%. Sunday is the cheapest day at C$ 749 round-trip on average, while Tuesday is the most expensive at C$ 956 – a C$ 207 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

Morning is the busiest departure period on Ottawa to Chicago O'Hare Intl Airport flights, with 50% leaving in that window. Afternoon departures account for 50%, Evening flights for 0%, and Night flights for 0%.

Some of the most popular sights in Chicago O'Hare Intl Airport are Magnificent Mile, River North, and Grant Park. 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 Ottawa to Chicago O'Hare Intl Airport:

• Earliest: departs at 6:15 am and lands at 8:48 am
• Latest: departs at 5:20 pm and lands at 7:53 pm.

The flight takes about 2h 33m.

A direct flight from Ottawa to Chicago O'Hare Intl Airport takes 2h 33m, covering 1,690 km.

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.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about C$ 476 to C$ 1,692. That means the highest observed fare was about 4x higher than the lowest one.

One-way fares from Ottawa to Chicago O'Hare Intl Airport are currently lower than usual. Average one-way flight prices are about C$ 463, which is 6% below the typical average for this route.

Flying via Toronto Island (YTZ) gives the shortest average 1-stop total travel time at 4h 18m, compared with 6h 07m via Toronto Pearson Intl (YYZ) and 10h 42m via Calgary (YYC).

Chicago O'Hare Intl Airport is 1 hour behind Ottawa (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 C$ 24 for economy cars. Top options include:
• Routes Car & Truck Rentals
• Europcar
• Hertz
• Dollar
• Ace

Round-trip flights from Ottawa to Chicago O'Hare Intl Airport range from C$ 708 to C$ 1,030, with an average of C$ 838 over the past 12 months. Anything below C$ 708 counts as a good deal.