Cheap Flights From Macdonald-Cartier Intl. (YOW) To O'Hare Intl. (ORD)

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Cheapest Flights from Ottawa (YOW) to Chicago (ORD)

The cheapest flights to O'Hare Intl. found within the past 7 days were CA $611 round trip and CA $343 one way. Prices and availability subject to change. Additional terms may apply.

Sat, Jan 17 - Tue, Jan 20
YOW
Ottawa
ORD
Chicago
CA $611 Roundtrip, found 1 day ago
CA $611
Roundtrip
found 1 day ago
Select Porter Airlines flight, departing Sat, Jan 17 from Ottawa to Chicago, returning Tue, Jan 20, priced at CA $611 found 1 day ago
Mon, Jan 26 - Thu, Feb 26
YOW
Ottawa
ORD
Chicago
CA $618 Roundtrip, found 4 days ago
CA $618
Roundtrip
found 4 days ago
Select Porter Airlines flight, departing Mon, Jan 26 from Ottawa to Chicago, returning Thu, Feb 26, priced at CA $618 found 4 days ago
Wed, Jan 21 - Tue, Jan 27
YOW
Ottawa
ORD
Chicago
CA $630 Roundtrip, found 1 day ago
CA $630
Roundtrip
found 1 day ago
Select Air Canada flight, departing Wed, Jan 21 from Ottawa to Chicago, returning Tue, Jan 27, priced at CA $630 found 1 day ago
Sat, Jan 24 - Thu, Jan 29
YOW
Ottawa
ORD
Chicago
CA $660 Roundtrip, found 1 day ago
CA $660
Roundtrip
found 1 day ago
Select Porter Airlines flight, departing Sat, Jan 24 from Ottawa to Chicago, returning Thu, Jan 29, priced at CA $660 found 1 day ago
Mon, Jan 26 - Thu, Feb 26
YOW
Ottawa
ORD
Chicago
CA $668 Roundtrip, found 4 days ago
CA $668
Roundtrip
found 4 days ago
Select Porter Airlines flight, departing Mon, Jan 26 from Ottawa to Chicago, returning Thu, Feb 26, priced at CA $668 found 4 days ago
Wed, Jan 21 - Sun, Feb 1
YOW
Ottawa
ORD
Chicago
CA $671 Roundtrip, found 1 day ago
CA $671
Roundtrip
found 1 day ago
Select Air Canada flight, departing Wed, Jan 21 from Ottawa to Chicago, returning Sun, Feb 1, priced at CA $671 found 1 day ago
Sat, Jan 24 - Thu, Jan 29
YOW
Ottawa
ORD
Chicago
CA $677 Roundtrip, found 1 day ago
CA $677
Roundtrip
found 1 day ago
Select Porter Airlines flight, departing Sat, Jan 24 from Ottawa to Chicago, returning Thu, Jan 29, priced at CA $677 found 1 day ago
Sat, Jan 24 - Thu, Jan 29
YOW
Ottawa
ORD
Chicago
CA $680 Roundtrip, found 1 day ago
CA $680
Roundtrip
found 1 day ago
Select Porter Airlines flight, departing Sat, Jan 24 from Ottawa to Chicago, returning Thu, Jan 29, priced at CA $680 found 1 day ago
Thu, Dec 11 - Mon, Dec 15
YOW
Ottawa
ORD
Chicago
CA $684 Roundtrip, found 6 days ago
CA $684
Roundtrip
found 6 days ago
Select Porter Airlines flight, departing Thu, Dec 11 from Ottawa to Chicago, returning Mon, Dec 15, priced at CA $684 found 6 days ago
Wed, Dec 3 - Mon, Dec 8
YOW
Ottawa
ORD
Chicago
CA $686 Roundtrip, found 6 days ago
CA $686
Roundtrip
found 6 days ago
Select Porter Airlines flight, departing Wed, Dec 3 from Ottawa to Chicago, returning Mon, Dec 8, priced at CA $686 found 6 days ago

Frequently asked questions

What airlines fly from Macdonald-Cartier Intl. Airport (YOW) to ORD?
Unfortunately, there are no airlines currently offering direct flights between Ottawa International Airport and O'Hare Airport. For the sake of saving time, book well in advance to find the ideal price and route.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.

Popular Flight Routes from Ottawa (YOW)

Travelers at YOW love to visit these top cities. Roam to the top destinations from Ottawa (YOW) today with the cheap prices from Travelocity!

Popular Flight Routes from Chicago (ORD)

Travelers at ORD love to visit these top cities. Roam to the top destinations from Chicago(ORD) today with the cheap prices from Travelocity!

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.