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 $618 round trip and CA $343 one way. Prices and availability subject to change. Additional terms may apply.

Mon, Jan 26 - Thu, Feb 26
YOW
Ottawa
ORD
Chicago
CA $618 Roundtrip, found 1 day ago
CA $618
Roundtrip
found 1 day ago
Select Porter Airlines flight, departing Mon, Jan 26 from Ottawa to Chicago, returning Thu, Feb 26, priced at CA $618 found 1 day ago
Fri, Apr 10 - Tue, Apr 14
YOW
Ottawa
ORD
Chicago
CA $642 Roundtrip, found 5 days ago
CA $642
Roundtrip
found 5 days ago
Select Porter Airlines flight, departing Fri, Apr 10 from Ottawa to Chicago, returning Tue, Apr 14, priced at CA $642 found 5 days ago
Mon, Jan 26 - Thu, Feb 26
YOW
Ottawa
ORD
Chicago
CA $668 Roundtrip, found 1 day ago
CA $668
Roundtrip
found 1 day ago
Select Porter Airlines flight, departing Mon, Jan 26 from Ottawa to Chicago, returning Thu, Feb 26, priced at CA $668 found 1 day ago
Thu, Dec 11 - Mon, Dec 15
YOW
Ottawa
ORD
Chicago
CA $684 Roundtrip, found 3 days ago
CA $684
Roundtrip
found 3 days ago
Select Porter Airlines flight, departing Thu, Dec 11 from Ottawa to Chicago, returning Mon, Dec 15, priced at CA $684 found 3 days ago
Wed, Dec 3 - Mon, Dec 8
YOW
Ottawa
ORD
Chicago
CA $686 Roundtrip, found 3 days ago
CA $686
Roundtrip
found 3 days ago
Select Porter Airlines flight, departing Wed, Dec 3 from Ottawa to Chicago, returning Mon, Dec 8, priced at CA $686 found 3 days ago
Mon, Jan 26 - Thu, Feb 26
YOW
Ottawa
ORD
Chicago
CA $687 Roundtrip, found 1 day ago
CA $687
Roundtrip
found 1 day ago
Select Porter Airlines flight, departing Mon, Jan 26 from Ottawa to Chicago, returning Thu, Feb 26, priced at CA $687 found 1 day ago
Fri, Apr 10 - Tue, Apr 14
YOW
Ottawa
ORD
Chicago
CA $692 Roundtrip, found 5 days ago
CA $692
Roundtrip
found 5 days ago
Select Porter Airlines flight, departing Fri, Apr 10 from Ottawa to Chicago, returning Tue, Apr 14, priced at CA $692 found 5 days ago
Mon, Jan 26 - Thu, Feb 26
YOW
Ottawa
ORD
Chicago
CA $700 Roundtrip, found 1 day ago
CA $700
Roundtrip
found 1 day ago
Select Porter Airlines flight, departing Mon, Jan 26 from Ottawa to Chicago, returning Thu, Feb 26, priced at CA $700 found 1 day ago
Thu, Dec 11 - Mon, Dec 15
YOW
Ottawa
ORD
Chicago
CA $702 Roundtrip, found 3 days ago
CA $702
Roundtrip
found 3 days ago
Select Porter Airlines flight, departing Thu, Dec 11 from Ottawa to Chicago, returning Mon, Dec 15, priced at CA $702 found 3 days ago
Thu, Dec 11 - Mon, Dec 15
YOW
Ottawa
ORD
Chicago
CA $712 Roundtrip, found 3 days ago
CA $712
Roundtrip
found 3 days ago
Select Porter Airlines flight, departing Thu, Dec 11 from Ottawa to Chicago, returning Mon, Dec 15, priced at CA $712 found 3 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.