$146 Find Cheap Flights from Chicago to Ottawa - Compare and Save

The carry-on and checked luggage allowance depends on your airline. Porter Airlines allow you to bring carry-on luggage not exceeding 22 x 16 x 9 inches and an additional bag weighing no more than 50 lbs. If you book Delta, your carry-on dimensions limit is 22 x 14 x 9 inches, and another bag not exceeding 50 lbs. Your luggage should fit underneath your seat or in the upper cabin for the comfort of other passengers.

Chicago O’Hare International Airport is a hub for American Airlines and United Airlines, linking many domestic and international cities. At the same time, Ottawa Macdonlad-Cartier International Airport (YOW) is a hub for Air Canada. This airport serves millions of passengers annually to major American and European destinations.

Ottawa Macdonald-Cartier International Airport serves several cities. After arriving, you can go to Gatineau to the north, Kanata to the west, Kemptville to the south, Winchester to the southeast, and Almonte to the southwest. You can rent a car and drive to these cities at your own pace or take public transport at the airport terminal, depending on your destination.

Upgrading to first class on Chicago to Ottawa route depends on your airline. Most airlines email passengers to make them know about available seats and amenities to enjoy while flying first class. Though the upgrading fee depends on your class fare, it's more cost-effective than booking first class originally. In addition, you need to book at least 24 hours before departure to avoid inconveniences and last-minute stress.

Among airlines operating Chicago to Ottawa flights:

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

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

Only United Airlines operates flights between Chicago and Ottawa.

Flights from Chicago to Ottawa may depart from several airports in Chicago area, including Chicago Midway (MDW), Chicago O'Hare Intl (ORD) and Chicago Greater Rockford (RFD). Flights usually arrive at Ottawa (YOW).

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
• Air Canada: a cabin bag and a checked bag in Economy Class
• Emirates: a cabin bag and a checked bag in Economy 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 Chicago to Ottawa:

• Economy Class
• Business Class
• First Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $364 round-trip via Fort Lauderdale (FLL), compared to $727 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$69 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

One-stop flights from Chicago to Ottawa most commonly connect through:

• Toronto Island (YTZ) - 79% of one-stop connections
• Toronto Pearson Intl (YYZ) - 17% of one-stop connections
• Calgary (YYC) - 3% of one-stop connections
• Fort Lauderdale (FLL) - 1% of one-stop connections

Toronto Island (YTZ) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 38% on the Chicago to Ottawa route. Thursday is the cheapest departure day at $475 round-trip on average, while Monday is the most expensive at $761, a difference of $286. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Chicago to Ottawa route, 17% of flights were delayed in the past 3 months, with delays averaging 2 hours 22 minutes.

Morning is the busiest departure period on Chicago to Ottawa flights, with 34% of flights leaving in that window. Afternoon departures account for 33%, evening flights for 33%, and night flights for 0%.

Some of the most popular sights in Ottawa are Downtown Ottawa, Parliament Hill and Garden of the Provinces and Territories. These are among the most viewed places in Ottawa on KAYAK.

These are the earliest and latest flight times available from Chicago to Ottawa:

• Earliest: departs at 10:40 am and lands at 12:57 pm
• Latest: departs at 6:21 pm and lands at 8:38 pm.

The flight takes about 2h 17m.

A nonstop flight from Chicago to Ottawa takes 2h 17m, covering 643 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.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $343 to $1,853. That means the highest observed fare was about 5x higher than the lowest one.

One-way fares from Chicago to Ottawa are currently lower than usual. Average one-way flight prices are about $274, which is 23% below the typical average for this route.

United Airlines is the only airline operating Chicago to Ottawa flights. 83% of its flights are on time.

Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

Flying via Toronto Island (YTZ) gives the shortest average 1-stop total travel time at 5h 05m, compared with 6h 14m via Toronto Pearson Intl (YYZ) and 15h 11m via Calgary (YYC).

Ottawa is 1 hour ahead of Chicago (Eastern Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Ottawa Airport (YOW) hosts 5 major car rental companies, with daily rates starting from around $13 for economy cars. Top options include:
· Routes Car & Truck Rentals
· Europcar
· Alamo
· Budget
· Enterprise Rent-A-Car

Round-trip flights from Chicago to Ottawa range from $466 to $834, with an average of $674 over the past 12 months. Anything below $466 counts as a good deal.