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 $700 round trip and CA $329 one way. Prices and availability subject to change. Additional terms may apply.

Tue, Feb 10 - Tue, Feb 17
YOW
Ottawa
ORD
Chicago
CA $700 Roundtrip, found 3 days ago
CA $700
Roundtrip
found 3 days ago
Select Porter Airlines flight, departing Tue, Feb 10 from Ottawa to Chicago, returning Tue, Feb 17, priced at CA $700 found 3 days ago
Fri, Feb 6 - Sun, Feb 8
YOW
Ottawa
ORD
Chicago
CA $704 Roundtrip, found 3 hours ago
CA $704
Roundtrip
found 3 hours ago
Select WestJet flight, departing Fri, Feb 6 from Ottawa to Chicago, returning Sun, Feb 8, priced at CA $704 found 3 hours ago
Tue, Feb 10 - Tue, Feb 17
YOW
Ottawa
ORD
Chicago
CA $709 Roundtrip, found 3 days ago
CA $709
Roundtrip
found 3 days ago
Select Porter Airlines flight, departing Tue, Feb 10 from Ottawa to Chicago, returning Tue, Feb 17, priced at CA $709 found 3 days ago
Tue, Feb 10 - Tue, Feb 17
YOW
Ottawa
ORD
Chicago
CA $717 Roundtrip, found 3 days ago
CA $717
Roundtrip
found 3 days ago
Select Porter Airlines flight, departing Tue, Feb 10 from Ottawa to Chicago, returning Tue, Feb 17, priced at CA $717 found 3 days ago
Thu, Feb 5 - Wed, Feb 11
YOW
Ottawa
ORD
Chicago
CA $727 Roundtrip, found 2 days ago
CA $727
Roundtrip
found 2 days ago
Select Porter Airlines flight, departing Thu, Feb 5 from Ottawa to Chicago, returning Wed, Feb 11, priced at CA $727 found 2 days ago
Fri, Feb 6 - Sun, Feb 8
YOW
Ottawa
ORD
Chicago
CA $730 Roundtrip, found 3 hours ago
CA $730
Roundtrip
found 3 hours ago
Select WestJet flight, departing Fri, Feb 6 from Ottawa to Chicago, returning Sun, Feb 8, priced at CA $730 found 3 hours ago
Tue, Feb 10 - Tue, Feb 17
YOW
Ottawa
ORD
Chicago
CA $733 Roundtrip, found 3 days ago
CA $733
Roundtrip
found 3 days ago
Select Porter Airlines flight, departing Tue, Feb 10 from Ottawa to Chicago, returning Tue, Feb 17, priced at CA $733 found 3 days ago
Wed, Jan 14 - Sat, Jan 17
YOW
Ottawa
ORD
Chicago
CA $735 Roundtrip, found 2 days ago
CA $735
Roundtrip
found 2 days ago
Select Porter Airlines flight, departing Wed, Jan 14 from Ottawa to Chicago, returning Sat, Jan 17, priced at CA $735 found 2 days ago
Tue, Feb 10 - Tue, Feb 17
YOW
Ottawa
ORD
Chicago
CA $737 Roundtrip, found 3 days ago
CA $737
Roundtrip
found 3 days ago
Select Porter Airlines flight, departing Tue, Feb 10 from Ottawa to Chicago, returning Tue, Feb 17, priced at CA $737 found 3 days ago
Sat, Feb 14 - Thu, Feb 19
YOW
Ottawa
ORD
Chicago
CA $739 Roundtrip, found 6 days ago
CA $739
Roundtrip
found 6 days ago
Select Porter Airlines flight, departing Sat, Feb 14 from Ottawa to Chicago, returning Thu, Feb 19, priced at CA $739 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.