$176 Cheap Flights from Chicago (ORD) to Ottawa (YOW)

View $176 flight on Mon, Oct 20, 2025Opens in a new window

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to Ottawa International Airport (YOW)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Chicago to Ottawa (ORD-YOW)

Prices were available within the past 7 days and start at $176 for one-way flights and $259 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Mon, Oct 6 - Tue, Oct 7
ORD
Chicago
YOW
Ottawa
$259 Roundtrip, found 3 days ago
$259
Roundtrip
found 3 days ago
Select Air Canada flight, departing Mon, Oct 6 from Chicago to Ottawa, returning Tue, Oct 7, priced at $259 found 3 days ago
Air Canada
Mon, Oct 6 - Tue, Oct 7
ORD
Chicago
YOW
Ottawa
$283 Roundtrip, found 3 days ago
$283
Roundtrip
found 3 days ago
Select Air Canada flight, departing Mon, Oct 6 from Chicago to Ottawa, returning Tue, Oct 7, priced at $283 found 3 days ago
Air Canada
Mon, Oct 6 - Tue, Oct 7
ORD
Chicago
YOW
Ottawa
$292 Roundtrip, found 3 days ago
$292
Roundtrip
found 3 days ago
Select Air Canada flight, departing Mon, Oct 6 from Chicago to Ottawa, returning Tue, Oct 7, priced at $292 found 3 days ago
Air Canada
Mon, Oct 6 - Tue, Oct 7
ORD
Chicago
YOW
Ottawa
$325 Roundtrip, found 3 days ago
$325
Roundtrip
found 3 days ago
Select Air Canada flight, departing Mon, Oct 6 from Chicago to Ottawa, returning Tue, Oct 7, priced at $325 found 3 days ago
Air Canada
Wed, Aug 20 - Thu, Aug 21
ORD
Chicago
YOW
Ottawa
$330 Roundtrip, found 3 days ago
$330
Roundtrip
found 3 days ago
Select Air Canada flight, departing Wed, Aug 20 from Chicago to Ottawa, returning Thu, Aug 21, priced at $330 found 3 days ago
Air Canada
Fri, Oct 10 - Sat, Oct 11
ORD
Chicago
YOW
Ottawa
$333 Roundtrip, found 2 days ago
$333
Roundtrip
found 2 days ago
Select Air Canada flight, departing Fri, Oct 10 from Chicago to Ottawa, returning Sat, Oct 11, priced at $333 found 2 days ago
United
Thu, Oct 2 - Fri, Oct 3
ORD
Chicago
YOW
Ottawa
$350 Roundtrip, found 1 hour ago
$350
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Oct 2 from Chicago to Ottawa, returning Fri, Oct 3, priced at $350 found 1 hour ago
Air Canada
Thu, Aug 21 - Fri, Aug 22
ORD
Chicago
YOW
Ottawa
$350 Roundtrip, found 3 days ago
$350
Roundtrip
found 3 days ago
Select Air Canada flight, departing Thu, Aug 21 from Chicago to Ottawa, returning Fri, Aug 22, priced at $350 found 3 days ago
Air Canada
Mon, Oct 6 - Tue, Oct 7
ORD
Chicago
YOW
Ottawa
$354 Roundtrip, found 3 days ago
$354
Roundtrip
found 3 days ago
Select Air Canada flight, departing Mon, Oct 6 from Chicago to Ottawa, returning Tue, Oct 7, priced at $354 found 3 days ago
WestJet
Thu, Oct 2 - Mon, Oct 6
ORD
Chicago
YOW
Ottawa
$1,060 Roundtrip, found 5 hours ago
$1,060
Roundtrip
found 5 hours ago
Select WestJet flight, departing Thu, Oct 2 from Chicago to Ottawa, returning Mon, Oct 6, priced at $1,060 found 5 hours ago

Find the cheapest month to fly from Chicago (ORD) to Ottawa (YOW)

May is typically the cheapest month to fly

From $291 - $893 per traveler.

Graph displaying average flight prices per month

Alternative airports near Ottawa

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Macdonald-Cartier Intl. YOW. Cheapest option available. Average driving time to city center is 15 minutes. Flights from $509
YOW
Macdonald-Cartier Intl.
Cheapest
Average driving time to city center15 min
Flights from $509
Flights from Chicago (ORD) to Ottawa (YOW)
Origin airport
O'Hare Intl.
Destination airport
Macdonald-Cartier Intl.
Airlines serving
Air Canada, United, WestJet
Roundtrip price
$258
Distance
653 mi
Average flight time
3 hours 12 mins

Chicago to Ottawa Flights

The cheapest times to fly from Chicago to Ottawa

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Chicago to Ottawa are during the month of October. You can find some of the cheapest flights from Chicago to Ottawa with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Chicago to Ottawa

Sunday is one of the best days to book for cheap flights from Chicago to Ottawa: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Chicago to Ottawa

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Chicago to Ottawa in 2025. You can also book with separate airlines for your outbound and return journeys, from $176 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Chicago to Ottawa flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Chicago to Ottawa airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from O'Hare Intl. Airport (ORD) to Macdonald-Cartier Intl. Airport (YOW) cost?
You can pick up cheap return fares starting at $397 from O'Hare Intl. Airport (ORD) to Macdonald-Cartier Intl. Airport (YOW). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a United and Air Canada flight leaving ORD on August 17 2025 and touching down at YOW. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from ORD to YOW?
The cheapest flights from ORD to YOW are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from O'Hare Intl. Airport (ORD) to Macdonald-Cartier Intl. Airport (YOW)?
Fly nonstop from O'Hare Intl. Airport (ORD) to Macdonald-Cartier Intl. Airport (YOW) on a United Airlines flight.
What is the cheapest airline that flies from ORD to YOW?
Travel from ORD to YOW with United. This airline currently offers the lowest one-way fare for this route, starting at $225. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from ORD on August 21 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from O'Hare Intl. Airport (ORD) to Macdonald-Cartier Intl. Airport (YOW)?
With, on average, 2 nonstop flights that operate from O'Hare Intl. Airport (ORD) to Macdonald-Cartier Intl. Airport (YOW) every day, you'll be off on your next adventure in no time.
What are the most popular departure times for flights from O'Hare Intl. Airport (ORD) to Macdonald-Cartier Intl. Airport (YOW)?
More passengers fly between ORD and YOW at 1 PM than at any other time. Rather skip the crowds? Consider flying outside peak hours and there's a chance you'll save on your fare as well.
What day of the week has the most flights from ORD to YOW?
Travel on a Friday if you're searching for the best selection of flights from O'Hare Intl. Airport (ORD) to Macdonald-Cartier Intl. Airport (YOW).
What is the earliest flight from O'Hare Intl. Airport (ORD) to Macdonald-Cartier Intl. Airport (YOW)?
O'Hare Intl. Airport (ORD)'s first flight to Macdonald-Cartier Intl. Airport (YOW) is at approximately 1:55PM UTC-6. With a total journey time of 2h 11m, you'll arrive at around 5:06PM UTC-5.
How long does it take to fly from O'Hare Intl. Airport (ORD) to Macdonald-Cartier Intl. Airport (YOW)?
The average flight duration from ORD to YOW is 2 hours and 13 minutes, covering a total distance of 650 mi.
What airline has the least delays from ORD to YOW?
AVIANCA has the strongest track record for on-time direct flights from O'Hare Intl. Airport (ORD) to Macdonald-Cartier Intl. Airport (YOW), with an on-time rating of 95%. Use the Expedia App to see your journey status before you take off and get immediate updates about any trip changes.
What is the best time to fly from O'Hare Intl. Airport (ORD) to Macdonald-Cartier Intl. Airport (YOW)?
To avoid possible delays on the O'Hare Intl. Airport (ORD) to Macdonald-Cartier Intl. Airport (YOW) route, aim to travel before 3 PM. Flights after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Ottawa from O'Hare Intl. Airport (ORD)?
If you're flying on a direct flight from O'Hare Intl. Airport (ORD) to Ottawa, Macdonald-Cartier Intl. Airport (YOW) is the only airport you can land at.
Is it cheaper to buy a plane ticket from O'Hare Intl. Airport (ORD) to Macdonald-Cartier Intl. Airport (YOW) last-minute?
Booking your plane ticket from ORD to YOW right before your trip is generally more expensive. However, if you're flexible with your schedule, you could bag a cheap last-minute fare.
Is it cheaper to book an ORD to YOW flight and hotel package?
Opting for an ORD to YOW flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Pick from our impressive range of hotels and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from O'Hare Intl. Airport (ORD) to Macdonald-Cartier Intl. Airport (YOW)?
It's generally possible to cancel or reschedule your ORD to YOW flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.