What’s the cheapest layover airport for flights from Ottawa to Chicago O'Hare Intl Airport?

Toronto (YTZ) is the most affordable 1-stop option, with an average round-trip price of C$ 520.

Which airport typically offers the quickest layover for flights from Ottawa to Chicago O'Hare Intl Airport?

Flights via Toronto (YTZ) offer the fastest connection on this route, with an average layover time of 1h 27m.

What’s the top layover airport for flights from Ottawa to Chicago O'Hare Intl Airport?

Toronto (YYZ) – chosen by Cheapflights users on 57% of one-stop itineraries from Ottawa to Chicago O'Hare Intl Airport on Cheapflights.

What’s the fastest layover option from Ottawa to Chicago O'Hare Intl Airport?

Flights via Toronto (YTZ) have the shortest average one-way travel time for 1-stop routes: 4h 00m.

How long is the flight from Ottawa to Chicago O'Hare Intl Airport?

Airlines like Porter Airlines and Air Canada fly from Ottawa to Chicago O'Hare Intl Airport in about 5h 20m. The time it takes to get you to your destination can typically vary by up to 1h 52m. Airlines will cover a distance of 1051 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

What are the cheapest airlines flying from Ottawa to Chicago O'Hare Intl Airport round-trip?

Our cheapest airline available from Ottawa to Chicago O'Hare Intl Airport is Air Canada. Our recent data shows that you can find tickets from as low as C$ 414 on this airline. An additional option worth looking into is United Airlines, starting at C$ 470. Air Canada is 56% cheaper than the average price of flights available within the next 90 days to this destination.

Weekly flight availability from Ottawa to Chicago O'Hare Intl Airport

The most flights from YOW to ORD are scheduled on a Wednesday (13 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (8 on average).

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 43.0 - 125.0 mm per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 43.0 mm.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

What are the cheapest flights from Ottawa to Chicago O'Hare Intl Airport?

Looking for the cheapest flight from Ottawa to Chicago O'Hare Intl Airport? While on average our users pay C$ 1,617, our data indicates the cheapest price to be C$ 260. The most popular route (Ottawa - Chicago O'Hare Intl), is priced around C$ 478.

What are the most reliable airlines from Ottawa to Chicago O'Hare Intl Airport?

Before booking your flight to Chicago O'Hare Intl Airport from Ottawa, check out the most reliable airlines to get you to your destination on time: Avianca (82%), ANA (80%), Air Canada( 72%).

What airport do you fly from for flights from Ottawa to Chicago O'Hare Intl?

Ottawa (YOW), located 10.6 km from the city centre, is the airport you fly out of when you book flights from Ottawa to Chicago O'Hare Intl. 2 airlines have flights from Ottawa to Chicago O'Hare Intl on a regular basis. Booking flights from Ottawa to Chicago O'Hare Intl should not be difficult; the airport handles an average of 11 outbound flights to Chicago O'Hare Intl per day.

Can I find deals for flights from Ottawa to O'Hare Intl that include hotel bookings?

Yes. In addition to deals on Ottawa to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Ottawa to O'Hare Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ottawa to O'Hare Intl.

Can I find deals for business class flights from Ottawa to O'Hare Intl?

Yes. Cheapflights offers flight deals from Ottawa to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 264+ Cheap Flights from Ottawa to Chicago O'Hare Intl Airport

Cheap flight deals from Ottawa to O'Hare Intl

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Ottawa to O'Hare Intl
Explore the most affordable flight options available from Ottawa to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 September 2026.

Sat 3/106:01 p.m. -

1 stop6h 20m

Sun 4/1010:40 a.m. -

Nonstop2h 19m

Deal found 3/9C$ 478

Fri 23/107:20 a.m. -

1 stop10h 20m

Tue 27/106:20 p.m. -

1 stop17h 54m

Deal found 1/9C$ 485

Thu 1/106:55 a.m. -

1 stop7h 30m

Sun 4/107:25 a.m. -

1 stop9h 10m

Deal found 31/8C$ 494

Sat 3/106:55 a.m. -

1 stop7h 28m

Sun 4/109:55 a.m. -

1 stop13h 25m

Deal found 3/9C$ 500

Fri 23/107:20 a.m. -

1 stop10h 20m

Sun 25/106:20 p.m. -

1 stop12h 39m

Deal found 1/9C$ 511

Mon 21/98:15 p.m. -

1 stop21h 25m

Tue 29/95:30 p.m. -

1 stop11h 05m

Deal found 31/8C$ 527

Wed 21/107:00 a.m. -

1 stop6h 45m

Sun 25/1011:45 a.m. -

1 stop5h 13m

Deal found 1/9C$ 540

Sat 26/97:00 a.m. -

1 stop9h 20m

Sun 27/95:30 p.m. -

1 stop11h 05m

Deal found 3/9C$ 551

Thu 15/107:20 a.m. -

1 stop10h 20m

Wed 21/108:04 a.m. -

2 stops34h 56m

Deal found 3/9C$ 569

Find flight deals from Ottawa to O'Hare Intl

Round-trip from	C$ 478
One-way from	C$ 264
Popular in	March
Cheapest in	October
Average price	C$ 991
Good round-trip deal	C$ 757 or less
Good one-way deal	C$ 385 or less

Lufthansa
3/10-4/10
1 total stop
8h 39m total
Ottawa to Chicago

Search Deals

WestJet
23/10-31/12
1 total stop
10h 20m total
Ottawa to Chicago

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (C$ 176 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (C$ 35 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Price to beat on a round-trip flight from Ottawa to Chicago O'Hare Intl.

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Price to beat on a one-way flight from Ottawa to Chicago O'Hare Intl.

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Ottawa to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Fri 20/11

12:15 p.m.-5:40 p.m.

1 stop6h 25m

Chicago O'Hare Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 337

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Thu 10/9

1:20 p.m.-5:38 a.m.

2 stops17h 18m

Chicago O'Hare Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 374

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Sat 28/11

12:40 p.m.-5:40 p.m.

1 stop6h 00m

Chicago O'Hare Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 385

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Wed 6/1

5:30 a.m.-5:40 p.m.

1 stop13h 10m

Chicago O'Hare Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 398

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Thu 24/9

7:00 a.m.-12:45 p.m.

1 stop6h 45m

Chicago O'Hare Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 407

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Fri 20/11

5:40 p.m.-12:16 a.m.

2 stops31h 36m

Chicago O'Hare Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 414

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Thu 24/9

2:10 p.m.-10:59 p.m.

2 stops33h 49m

Chicago O'Hare Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 450

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Mon 14/9

2:10 p.m.-6:23 p.m.

2 stops29h 13m

Chicago O'Hare Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 460

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Wed 6/1

6:55 p.m.-4:35 p.m.

2 stops22h 40m

Chicago O'Hare Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 490

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Sat 3/10

6:55 a.m.-7:48 p.m.

1 stop13h 53m

Chicago O'Hare Intl

Sun 4/10

9:55 a.m.-12:20 a.m.

1 stop13h 25m

C$ 508

Flights are sorted by cheapest round-trip flights first.

Deals found on 31/8

Showing 1-10 of 23 resultsSorted by cheapest first

Best time to book a flight from Ottawa to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Ottawa with our price prediction graph.

YOW-ORD

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ottawa to Chicago O'Hare Intl Airport

Prices

Airlines

Currently, October is the cheapest month in which you can book a flight from Ottawa to Chicago O'Hare Intl Airport (average of C$ 643). Flying from Ottawa to Chicago O'Hare Intl Airport in March is currently the most expensive (average of C$ 1,222). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from YOW to ORD?

When flying from Ottawa to Chicago O'Hare Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing O'Hare Intl

Read through reviews of airlines operating flights from Ottawa to Chicago O'Hare Intl Airport, such as United Airlines and Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

10,160 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Chris,Aug 2026

MIA - ORD

Had to go through TSA again, already purchased bottle drink. TSA would not let through, United changed gates last minute. This experience bad for everyone. Staff rude, not our fault. Staff from Chicago to Wichita excellent!

United Airlines

7.4

Good

10,160 reviews

United Airlines

7.4

Good

10,160 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Chris,Aug 2026

MIA - ORD

Air Canada

7.1

Good

11,579 reviews

United Airlines

7.4

Good

10,160 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Chris,Aug 2026

MIA - ORD

Related info for your journey

What airport do you fly from for flights from Ottawa to Chicago O'Hare Intl?
Ottawa (YOW), located 10.6 km from the city centre, is the airport you fly out of when you book flights from Ottawa to Chicago O'Hare Intl. 2 airlines have flights from Ottawa to Chicago O'Hare Intl on a regular basis. Booking flights from Ottawa to Chicago O'Hare Intl should not be difficult; the airport handles an average of 11 outbound flights to Chicago O'Hare Intl per day.
How long is the flight from Ottawa to Chicago O'Hare Intl Airport?
Airlines like Porter Airlines and Air Canada fly from Ottawa to Chicago O'Hare Intl Airport in about 5h 20m. The time it takes to get you to your destination can typically vary by up to 1h 52m. Airlines will cover a distance of 1051 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines flying from Ottawa to Chicago O'Hare Intl Airport round-trip?
Our cheapest airline available from Ottawa to Chicago O'Hare Intl Airport is Air Canada. Our recent data shows that you can find tickets from as low as C$ 414 on this airline. An additional option worth looking into is United Airlines, starting at C$ 470. Air Canada is 56% cheaper than the average price of flights available within the next 90 days to this destination.
What are the most reliable airlines from Ottawa to Chicago O'Hare Intl Airport?
Before booking your flight to Chicago O'Hare Intl Airport from Ottawa, check out the most reliable airlines to get you to your destination on time: Avianca (82%), ANA (80%), Air Canada( 72%).
What are the cheapest flights from Ottawa to Chicago O'Hare Intl Airport?
Looking for the cheapest flight from Ottawa to Chicago O'Hare Intl Airport? While on average our users pay C$ 1,617, our data indicates the cheapest price to be C$ 260. The most popular route (Ottawa - Chicago O'Hare Intl), is priced around C$ 478.
Can I find deals for flights from Ottawa to O'Hare Intl that include hotel bookings?
Yes. In addition to deals on Ottawa to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ottawa to O'Hare Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ottawa to O'Hare Intl.
Can I find deals for business class flights from Ottawa to O'Hare Intl?
Yes. Cheapflights offers flight deals from Ottawa to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Ottawa to Chicago O'Hare Intl Airport?
Currently, October is the cheapest month in which you can book a flight from Ottawa to Chicago O'Hare Intl Airport (average of C$ 643). Flying from Ottawa to Chicago O'Hare Intl Airport in March is currently the most expensive (average of C$ 1,222). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 2 airlines flying from Ottawa to O'Hare Intl

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 414	AverageC$ 979	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	CheapestC$ 470	AverageC$ 766	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

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How does Cheapflights help users find flights from Ottawa to O'Hare Intl?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ottawa to O'Hare Intl. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Ottawa to O'Hare Intl?

Millions of users choose and trust Cheapflights to book the best flight deals from Ottawa to O'Hare Intl for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Ottawa to O'Hare Intl with no change fees?

Yes! Cheapflights helps users easily find flights from Ottawa to O'Hare Intl with no change fees.

Can Cheapflights notify me if prices for flights from Ottawa to O'Hare Intl become cheaper?

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Cheap flights from Ottawa to Chicago O'Hare Intl Airport from C$ 264

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ottawa to O'Hare Intl

Cheapest flights from Ottawa to O'Hare IntlExplore the most affordable flight options available from Ottawa to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 September 2026.

Explore the most affordable flight options available from Ottawa to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 September 2026.

Best flights from Ottawa to O'Hare IntlDiscover carefully curated flight deals from Ottawa to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 4 September 2026.

Discover carefully curated flight deals from Ottawa to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 4 September 2026.

Direct flights from Ottawa to O'Hare IntlExplore direct flight options from Ottawa to O'Hare Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 4 September 2026.

Explore direct flight options from Ottawa to O'Hare Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 4 September 2026.

Last-minute flights from Ottawa to O'Hare IntlDiscover last-minute flight deals from Ottawa to O'Hare Intl. Data last updated 4 September 2026 and is based on user searches.

Discover last-minute flight deals from Ottawa to O'Hare Intl. Data last updated 4 September 2026 and is based on user searches.

One-way flights from Ottawa to O'Hare IntlSearch for one-way flight options from Ottawa to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 4 September 2026.

Search for one-way flight options from Ottawa to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 4 September 2026.

Find flight deals from Ottawa to O'Hare Intl

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One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ottawa to Chicago O'Hare Intl Airport that are best for you.

Best time to book a flight from Ottawa to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Ottawa with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Ottawa to Chicago O'Hare Intl Airport?

What is the cheapest time of day to fly from YOW to ORD?

When flying from Ottawa to Chicago O'Hare Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Ottawa to Chicago O'Hare Intl Airport

The most flights from YOW to ORD are scheduled on a Wednesday (13 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (8 on average).

What’s the top layover airport for flights from Ottawa to Chicago O'Hare Intl Airport?

Toronto (YYZ) – chosen by Cheapflights users on 57% of one-stop itineraries from Ottawa to Chicago O'Hare Intl Airport on Cheapflights.

What’s the cheapest layover airport for flights from Ottawa to Chicago O'Hare Intl Airport?

Toronto (YTZ) is the most affordable 1-stop option, with an average round-trip price of C$ 520.

What’s the fastest layover option from Ottawa to Chicago O'Hare Intl Airport?

Flights via Toronto (YTZ) have the shortest average one-way travel time for 1-stop routes: 4h 00m.

Which airport typically offers the quickest layover for flights from Ottawa to Chicago O'Hare Intl Airport?

Flights via Toronto (YTZ) offer the fastest connection on this route, with an average layover time of 1h 27m.

Reviews of airlines servicing O'Hare Intl

Read through reviews of airlines operating flights from Ottawa to Chicago O'Hare Intl Airport, such as United Airlines and Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly from for flights from Ottawa to Chicago O'Hare Intl?

How long is the flight from Ottawa to Chicago O'Hare Intl Airport?

What are the cheapest airlines flying from Ottawa to Chicago O'Hare Intl Airport round-trip?

What are the most reliable airlines from Ottawa to Chicago O'Hare Intl Airport?

What are the cheapest flights from Ottawa to Chicago O'Hare Intl Airport?

Can I find deals for flights from Ottawa to O'Hare Intl that include hotel bookings?

How can I find direct flights from Ottawa to O'Hare Intl?

Can I find deals for business class flights from Ottawa to O'Hare Intl?

What is the cheapest month to book a flight from Ottawa to Chicago O'Hare Intl Airport?

Travelling to a place near Chicago O'Hare Intl Airport?

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Alternative routes for Ottawa to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

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Direct flights to Illinois

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Search flights from Ottawa to O'Hare Intl by cabin class

Find flights from Ottawa to O'Hare Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to O'Hare Intl

Explore flights to O'Hare Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 4 September 2026.

Ottawa and O'Hare Intl flights

Browse other Ottawa and O'Hare Intl flight options. Last updated on 4 September 2026.

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Browse through other flights departing from Ottawa. Flights are based on user searches made on Cheapflights and were last updated on 4 September 2026.

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Top 2 airlines flying from Ottawa to O'Hare Intl

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Why should you use Cheapflights to find cheap flight tickets from Ottawa to O'Hare Intl?

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Can Cheapflights notify me if prices for flights from Ottawa to O'Hare Intl become cheaper?

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Cheapest flights from Ottawa to O'Hare Intl
Explore the most affordable flight options available from Ottawa to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 September 2026.

Best flights from Ottawa to O'Hare Intl
Discover carefully curated flight deals from Ottawa to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 4 September 2026.

Direct flights from Ottawa to O'Hare Intl
Explore direct flight options from Ottawa to O'Hare Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 4 September 2026.

Last-minute flights from Ottawa to O'Hare Intl
Discover last-minute flight deals from Ottawa to O'Hare Intl. Data last updated 4 September 2026 and is based on user searches.

One-way flights from Ottawa to O'Hare Intl
Search for one-way flight options from Ottawa to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 4 September 2026.