YOW - ORD

C$ 295 Find Cheap Flights from Ottawa to Chicago O'Hare Airport – Compare and Save

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Everything you should know

Cheapest round-trip
C$ 513
Typical prices: C$ 805-C$ 1,124
Porter Airlines
Wed 21/11Fri 23/11
YOW - ORD • 1 stop
Cheapest direct flights
C$ 1,007
Typical prices: C$ 883-C$ 1,129
Air Canada
Mon 26/11Thu 29/11
YOW - ORD • Direct
Direct flights
Every day
You can fly direct with United Airlines. Average duration is 2h 46m
Direct flights
+1
Direct flights
+1
When to travel
December
Cheapest • 21% price drop
September
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Fort Lauderdale (FLL)
Cheapest • Avg C$ 492 (round-trip)
Toronto Island (YTZ)
Shortest trip • 4h 28m (one-way)
Insights
Insights
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We hope you enjoy your trip to Chicago O'Hare Intl Airport!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Ottawa to O'Hare Intl (YOW-ORD)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ottawa to O'Hare Intl

Sat, 21 Nov - Mon, 23 Nov
Porter Airlines Logo
12:40 p.m. - 5:40 p.m.YOW  Ottawa-ORD Chicago O'Hare Intl
6h 00m1 stop Toronto Island
Porter Airlines Logo
12:15 p.m. - 6:12 p.m.ORD  Chicago O'Hare Intl-YOW Ottawa
4h 57m1 stop Toronto Island
C$ 513Porter Airlines
Fri, 20 Nov - Mon, 23 Nov
Porter Airlines Logo
12:15 p.m. - 5:40 p.m.YOW  Ottawa-ORD Chicago O'Hare Intl
6h 25m1 stop Toronto Island
Porter Airlines Logo
12:15 p.m. - 6:12 p.m.ORD  Chicago O'Hare Intl-YOW Ottawa
4h 57m1 stop Toronto Island
C$ 533Porter Airlines
Mon, 23 Nov - Wed, 2 Dec
Multiple Airlines Logo
7:05 a.m. - 11:34 p.m.YOW  Ottawa-ORD Chicago O'Hare Intl
17h 29m1 stop Fort Lauderdale
Multiple Airlines Logo
8:15 a.m. - 11:20 p.m.ORD  Chicago O'Hare Intl-YOW Ottawa
14h 05m2 stops Atlanta Hartsfield-Jackson Fort Lauderdale
C$ 534Multiple Airlines
Mon, 23 Nov - Wed, 2 Dec
Porter Airlines Logo
12:15 p.m. - 5:40 p.m.YOW  Ottawa-ORD Chicago O'Hare Intl
6h 25m1 stop Toronto Island
Porter Airlines Logo
12:15 p.m. - 6:13 p.m.ORD  Chicago O'Hare Intl-YOW Ottawa
4h 58m1 stop Toronto Island
C$ 536Porter Airlines
Fri, 20 Nov - Tue, 24 Nov
Porter Airlines Logo
12:15 p.m. - 5:40 p.m.YOW  Ottawa-ORD Chicago O'Hare Intl
6h 25m1 stop Toronto Island
Porter Airlines Logo
12:15 p.m. - 6:12 p.m.ORD  Chicago O'Hare Intl-YOW Ottawa
4h 57m1 stop Toronto Island
C$ 536Porter Airlines
Wed, 25 Nov - Wed, 2 Dec
Porter Airlines Logo
12:15 p.m. - 5:40 p.m.YOW  Ottawa-ORD Chicago O'Hare Intl
6h 25m1 stop Toronto Island
Porter Airlines Logo
12:15 p.m. - 6:13 p.m.ORD  Chicago O'Hare Intl-YOW Ottawa
4h 58m1 stop Toronto Island
C$ 538Porter Airlines
Mon, 23 Nov - Wed, 2 Dec
Multiple Airlines Logo
7:05 a.m. - 11:34 p.m.YOW  Ottawa-ORD Chicago O'Hare Intl
17h 29m1 stop Fort Lauderdale
Multiple Airlines Logo
9:13 a.m. - 5:15 p.m.ORD  Chicago O'Hare Intl-YOW Ottawa
31h 02m3 stops Dallas/Fort Worth Fort Lauderdale Hamilton
C$ 540Multiple Airlines
Wed, 9 Dec - Fri, 11 Dec
Porter Airlines Logo
12:15 p.m. - 5:40 p.m.YOW  Ottawa-ORD Chicago O'Hare Intl
6h 25m1 stop Toronto Island
Porter Airlines Logo
12:15 p.m. - 6:13 p.m.ORD  Chicago O'Hare Intl-YOW Ottawa
4h 58m1 stop Toronto Island
C$ 550Porter Airlines
Sat, 5 Dec - Tue, 8 Dec
Air Canada Logo
9:00 a.m. - 3:38 p.m.YOW  Ottawa-ORD Chicago O'Hare Intl
7h 38m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
Air Canada Logo
7:05 a.m. - 2:12 p.m.ORD  Chicago O'Hare Intl-YOW Ottawa
6h 07m1 stop Montreal Pierre Elliott Trudeau Intl
C$ 895Air Canada
Thu, 26 Nov - Sun, 29 Nov
Air Canada Logo
5:10 a.m. - 9:23 a.m.YOW  Ottawa-ORD Chicago O'Hare Intl
5h 13m1 stop Toronto Pearson Intl
Air Canada Logo
10:57 a.m. - 2:09 p.m.ORD  Chicago O'Hare Intl-YOW Ottawa
2h 12mdirect
C$ 958Air Canada
Booking Insights

Price, demand, and travel trends for Ottawa to Chicago O'Hare Intl Airport flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Ottawa to Chicago O'Hare Intl Airport?

Round-trip flights from Ottawa to Chicago O'Hare Intl Airport typically range from C$ 805 to C$ 1,124. The lowest price found in the past 5 days was C$ 513, on Porter Airlines.

What's the cheapest day of the week to fly from Ottawa to Chicago O'Hare Intl Airport?

Based on deals KAYAK users found in the last 12 months, Sunday is the cheapest day of the week to fly from Ottawa to Chicago O'Hare Intl Airport. It's 9% cheaper than the average day, while Monday is the most expensive, with prices 22% higher.

What is the cheapest month to fly from Ottawa to Chicago O'Hare Intl Airport?

•December is the cheapest month to fly from Ottawa to Chicago O'Hare Intl Airport at C$ 743 round-trip.
•March (C$ 1,238) and January (C$ 1,127) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 66% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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Expert advice

Expert advice for your flight from Ottawa to O'Hare Intl

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines, Air Canada and ORD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Mark Stachiew

Mark Stachiew

Expert on YOW

Mark Stachiew has been exploring the world and writing about it for more than 30 years. His travel stories have appeared in numerous newspapers, magazines and online publications in Canada, the United States and beyond.

Read more

Key details for Ottawa to Chicago O'Hare Intl Airport flights

Low season

March

Cheapest flight

C$ 295
Beat the crowds with an average 63% drop in traveller numbers.
The most popular month to fly with an average 64% increase in traveller numbers.
One-way flight from Ottawa to Chicago O'Hare Intl Airport

When to book flights from Ottawa to O'Hare Intl

Are your dates flexible? Find out the best times to travel from Ottawa to O'Hare Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Ottawa to Chicago O'Hare Intl Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • What are the earliest and latest flights from Ottawa to Chicago O'Hare Intl Airport?

    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 9:01 am
    • Latest: departs at 4:46 pm and lands at 7:32 pm.

    The flight takes about 2h 46m.

  • Which cabin classes can I book on flights from Ottawa to Chicago O'Hare Intl Airport?

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

  • How long does a flight from Ottawa to Chicago O'Hare Intl Airport take?

    A direct flight from Ottawa to Chicago O'Hare Intl Airport takes 2h 46m, covering 1,690 km.

  • Do I need a passport to fly from Ottawa to Chicago O'Hare Intl Airport?

    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.

  • How much should I expect to pay for a Ottawa to Chicago O'Hare Intl Airport flight?

    Round-trip flights from Ottawa to Chicago O'Hare Intl Airport range from C$ 805 to C$ 1,124, with an average of C$ 942 over the past 12 months. Anything below C$ 805 counts as a good deal.

  • How much can I save by taking a layover when flying from Ottawa to Chicago O'Hare Intl Airport?

    On this route, layover flights are cheaper than direct options on average. Layover fares average C$ 492 round-trip via Fort Lauderdale (FLL), compared to C$ 1,000 for direct.

  • What is the standard checked bag allowance on flights from Ottawa to Chicago O'Hare Intl Airport?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge C$ 34–C$ 97 for the first checked bag in economy. Premium fares and elite status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Ottawa to Chicago O'Hare Intl Airport?

    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.

  • How are flight departures from Ottawa to Chicago O'Hare Intl Airport spread across the day?

    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%.

  • Have flight prices from Ottawa to Chicago O'Hare Intl Airport changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about C$ 513 to C$ 2,147. That means the highest observed fare was about 4x higher than the lowest one.

  • How are flight prices from Ottawa to Chicago O'Hare Intl Airport looking right now?

    One-way fares from Ottawa to Chicago O'Hare Intl Airport are currently lower than usual. Average one-way flight prices are about C$ 355, which is 32% below the typical average for this route.

  • What car rental options are available at Chicago O'Hare Intl Airport (ORD)?

    Chicago O'Hare Intl Airport (ORD) hosts 5 major car rental companies, with daily rates averaging C$ 89 for economy cars. Top options include:

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

  • Which airports can I use when flying from Ottawa to 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).

  • Which airports do connecting flights from Ottawa to Chicago O'Hare Intl Airport pass through?

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

    • Toronto Pearson Intl (YYZ) – 54% of one-stop connections
    • Toronto Island (YTZ) – 41% of one-stop connections
    • Fort Lauderdale (FLL) – 3% of one-stop connections
    • Calgary (YYC) – 3% of one-stop connections

  • Can I save money by using flexible dates for flights from Ottawa to Chicago O'Hare Intl Airport?

    Yes. Flexible dates can save you up to 26% on flights from Ottawa to Chicago O'Hare Intl Airport. Sunday is the cheapest departure day at C$ 860 round-trip on average, while Monday is the most expensive at C$ 1,150, a difference of C$ 290.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • Which airlines fly from Ottawa to Chicago O'Hare Intl Airport?

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

  • How much time can I save by choosing a different layover airport when travelling from Ottawa to Chicago O'Hare Intl Airport?

    Flying via Toronto Island (YTZ) gives the shortest average 1-stop total travel time at 4h 28m, compared with 6h 10m via Toronto Pearson Intl (YYZ) and 10h 42m via Calgary (YYC).

  • What is the time difference between Ottawa and Chicago O'Hare Intl Airport?

    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.

  • Which popular places can I visit in Chicago O'Hare Intl Airport?

    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.

  • Which airlines offer extra legroom and free seat selection on Ottawa to Chicago O'Hare Intl Airport flights?

    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.

  • Which airlines include bags at no extra cost on Ottawa to Chicago O'Hare Intl Airport flights?

    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.

Your guide to booking Ottawa to Chicago O'Hare Intl Airport flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Sunday departure and avoid flying on Monday. On this route, Sunday flights average C$ 860, about C$ 290 less than Monday fares (25% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Ottawa to Chicago O'Hare Intl Airport trip for December. Fares historically average C$ 743 round-trip in that month – typically C$ 495 less than the most expensive month, which is March (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Fort Lauderdale Airport (FLL) can be cheaper than flying direct. The cheapest layover option averages C$ 492 round-trip on this route – about C$ 507 less than direct flights (based on the last 12 months).

Prefer to fly direct from Ottawa to Chicago O'Hare Airport?

 
Find which airlines fly direct from Ottawa Airport to Chicago O'Hare Intl Airport, which days they fly and book direct flights.

Direct departures

Ottawa to Chicago O'Hare Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more nonstop flights

Direct returns

Chicago O'Hare Intl to Ottawa

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more nonstop flights

More options for your flight from Ottawa to O'Hare Intl

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