C$ 316 Find Cheap Flights from Ottawa to Chicago – Compare and Save

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

• Earliest: departs at 6:15 am and lands at 8:54 am
• Latest: departs at 5:20 pm and lands at 7:59 pm.

The flight takes about 2h 39m.

Only Economy Class is available on flights from Ottawa to Chicago.

A direct flight from Ottawa to Chicago takes 2h 39m, covering 1,665 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.

Round-trip flights from Ottawa to Chicago range from C$ 607 to C$ 1,097, with an average of C$ 894 over the past 12 months. Anything below C$ 607 counts as a good deal.

On this route, layover flights are cheaper than direct options on average. Layover fares average C$ 501 round-trip via Fort Lauderdale (FLL), compared to C$ 1,018 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge C$ 36–C$ 98 for the first checked bag in economy. Premium fares and elite status bookings typically include a free checked bag.

Morning is the busiest departure period on Ottawa to Chicago flights, with 50% leaving in that window. Afternoon departures account for 50%, 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 C$ 540 to C$ 2,360. That means the highest observed fare was about 4x higher than the lowest one.

One-way fares from Ottawa to Chicago are currently lower than usual. Average one-way flight prices are about C$ 451, which is 14% below the typical average for this route.

Since Chicago is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
Near Chicago O'Hare Intl Airport (ORD) – daily rates from around C$ 24:

• Routes Car & Truck Rentals
• Europcar
• Hertz
• Ace
• Dollar

Near Chicago Midway Airport (MDW) – daily rates from around C$ 46:

• Hertz
• Dollar
• Budget
• Alamo
• Rent-A-Wreck

Near Chicago Greater Rockford Airport (RFD) – daily rates from around C$ 40:

• Alamo
• Enterprise Rent-A-Car
• Budget
• Avis
• National

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

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

• Toronto Island (YTZ) – 82% of one-stop connections
• Toronto Pearson Intl (YYZ) – 17% of one-stop connections
• Fort Lauderdale (FLL) – 1% of one-stop connections
• Calgary (YYC) – 1% of one-stop connections

Yes. Flexible dates can save you up to 27% on flights from Ottawa to Chicago. Thursday is the cheapest departure day at C$ 779 round-trip on average, while Monday is the most expensive at C$ 1,065, a difference of C$ 286.

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

Only United Airlines operates flights between Ottawa and Chicago.

Flying via Toronto Island (YTZ) gives the shortest average 1-stop total travel time at 4h 55m, compared with 6h 10m via Toronto Pearson Intl (YYZ) and 10h 42m via Calgary (YYC).

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

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

Among airlines operating Ottawa to Chicago 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.

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

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

Yes. To assist you throughout O'Hare, each airline offers wheelchair assistance to passengers with mobility issues. You have to make earlier reservations to get these services. All terminals provide easier access with elevators. All elevator panel buttons feature braille and raised numerals. All restrooms located throughout the airport have wheelchair-accessible facilities. In addition, ORD features an adult changing room with restrooms, showers, and emergency pull cords.

ORD features four terminals, including 1, 2, 3, and 5. Terminals 1-3 are referred to as the domestic terminals, and these three terminals are connected to each via pedestrian walkways. Terminal 5 is the leading international terminal and serves some domestic flights. The ATS offers train service rides to get to the terminals. You can also take the terminal transfer bus, which transports domestic arrival passengers between Terminals 1-3 and Terminal 5.

Yes. Terminal 5 features an AirFrance Lounge on the Airside near Gate M7. Concourses G, H, and L Feature American Admirals Clubs. Terminal 5 also features the Swissport Lounge in the airside of Terminal 5. Concourses B, C, and F feature a United Club lounge. ORD also features a SAS Lounge, a British Airways Lounge, and USO Lounge.

ORD features several bus services, including CTA, PACE, and regional buses. You can also get on car rentals with several agencies outside the baggage claim levels. Several hotel shuttles depart from the "Bus/Shuttle Center," located on the main level of the parking garage between elevator centers 3 and 4. You can also get on taxi rides or rent a car and drive to your location.