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Cheap flights from Ottawa to Chicago O'Hare Intl Airport from C$ 312

YOW — ORD
18 Nov — 25 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ottawa to O'Hare Intl

Enter your travel dates to find the best prices.

Cheapest flights from Ottawa to O'Hare Intl

Wed 11/114:46 p.m. -
Nonstop2h 44m
Thu 12/115:55 a.m. -
1 stop6h 16m
Deal found 16/10C$ 466
Wed 11/118:25 a.m. -
1 stop4h 10m
Thu 12/1112:15 p.m. -
1 stop4h 57m
Deal found 16/10C$ 539
Fri 6/1112:15 p.m. -
1 stop6h 25m
Sun 8/1112:15 p.m. -
1 stop4h 57m
Deal found 16/10C$ 540
Wed 4/118:25 a.m. -
1 stop4h 10m
Mon 9/1112:15 p.m. -
1 stop4h 57m
Deal found 14/10C$ 548
Sun 15/1112:15 p.m. -
1 stop6h 25m
Mon 16/1112:15 p.m. -
1 stop4h 57m
Deal found 18/10C$ 550
Sat 21/1112:40 p.m. -
1 stop6h 00m
Mon 23/1112:15 p.m. -
1 stop4h 57m
Deal found 18/10C$ 553
Thu 19/118:25 a.m. -
1 stop4h 10m
Sun 22/1112:15 p.m. -
1 stop4h 57m
Deal found 19/10C$ 567
Fri 20/118:25 a.m. -
1 stop4h 10m
Sun 22/1112:15 p.m. -
1 stop4h 57m
Deal found 15/10C$ 571
Fri 13/118:25 a.m. -
1 stop4h 10m
Fri 20/1112:15 p.m. -
1 stop4h 57m
Deal found 16/10C$ 572
Sun 15/118:25 a.m. -
1 stop4h 10m
Wed 18/1112:15 p.m. -
1 stop4h 57m
Deal found 14/10C$ 574
Sun 15/1112:15 p.m. -
1 stop6h 25m
Sun 22/1112:15 p.m. -
1 stop4h 57m
Deal found 18/10C$ 575

Find flight deals from Ottawa to O'Hare Intl

Round-trip from

C$ 466

One-way from

C$ 312

Popular in

March

Cheapest in

December

Average price

C$ 1,057

Good round-trip deal

C$ 836 or less

Good one-way deal

C$ 484 or less
Air Canada
  • Air Canada
  • 11/11-12/11
  • 1 total stop
  • 9h 00m total
  • Ottawa to Chicago
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8/12-31/12
  • 8/12-31/12
  • 3 total stops
  • 34h 33m total
  • Ottawa to Chicago
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Highest demand for flights based on searches. 10% potential increase in price (C$ 161 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 33 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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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

Tue 1/12

8:25 a.m.-11:35 a.m.

1 stop4h 10m

Chicago O'Hare Intl

Wed 31/12

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

Nonstop0h 00m

C$ 315

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Tue 8/12

4:40 p.m.-2:30 p.m.

2 stops22h 50m

Chicago O'Hare Intl

Wed 31/12

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

Nonstop0h 00m

C$ 315

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Sat 16/1

1:50 p.m.-7:44 p.m.

1 stop6h 54m

Chicago O'Hare Intl

Wed 31/12

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

Nonstop0h 00m

C$ 321

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Mon 30/11

8:25 a.m.-11:35 a.m.

1 stop4h 10m

Chicago O'Hare Intl

Wed 31/12

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

Nonstop0h 00m

C$ 362

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Mon 30/11

10:30 a.m.-1:51 p.m.

2 stops28h 21m

Chicago O'Hare Intl

Wed 31/12

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

Nonstop0h 00m

C$ 382

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Thu 29/10

7:05 a.m.-3:37 p.m.

1 stop9h 32m

Chicago O'Hare Intl

Wed 31/12

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

Nonstop0h 00m

C$ 418

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Tue 10/11

12:15 p.m.-6:30 p.m.

3 stops31h 15m

Chicago O'Hare Intl

Wed 31/12

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

Nonstop0h 00m

C$ 452

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Mon 28/12

10:25 a.m.-12:00 p.m.

2 stops26h 35m

Chicago O'Hare Intl

Wed 31/12

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

Nonstop0h 00m

C$ 483

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Tue 1/12

8:25 a.m.-11:35 a.m.

1 stop4h 10m

Chicago O'Hare Intl

Mon 7/12

12:15 p.m.-6:13 p.m.

1 stop4h 58m

C$ 539

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Thu 3/12

8:25 a.m.-11:35 a.m.

1 stop4h 10m

Chicago O'Hare Intl

Fri 4/12

12:15 p.m.-6:13 p.m.

1 stop4h 58m

C$ 591

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/10

Showing 1-10 of 23 resultsSorted by cheapest first
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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.
Estimated round-trip price

Cheapflights Insights

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

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

Currently, December is the cheapest month in which you can book a flight from Ottawa to Chicago O'Hare Intl Airport (average of C$ 745). Flying from Ottawa to Chicago O'Hare Intl Airport in March is currently the most expensive (average of C$ 1,251). 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.

How much does it cost to fly round-trip from Ottawa to Chicago O'Hare Intl Airport?

Airfare is below average for this route at the moment.

Ottawa to Chicago O'Hare Intl Airport flights typically cost between C$ 946 and C$ 1,124 in November.
The cheapest round-trip price found within the last 5 days was C$ 466 on Air Canada (11 Nov-12 Nov).

Reviews of airlines servicing O'Hare Intl

Read through reviews of airlines operating flights from Ottawa to Chicago O'Hare Intl Airport, such as Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
11,784 reviews
Check prices

Boarding

7.3

Overall

7.1

Crew

7.8

Entertainment

6.8

Comfort

7.1

Food

6.3

Reviews

1 / 20
2.0
Mediocre

Sylvia,Aug 2026

YYZ - PHL

Our flight from Kelowna was 5 hours delayed. We missed our connection. We were able to get to a hotel by 3:00 a.m. but the breakfast cost us $40. The hotel was good. We were rescheduled for the flight the next night when it was canceled. There were no hotel vouchers available which didn't matter because there were no hotel rooms available. We decided to just drive which was not easy doing a one-way rental to the United States. Worst possible trip I've ever had
Air Canada
7.1
Good
11,784 reviews
Air Canada
7.1
Good
11,784 reviews
Check prices

Boarding

7.3

Overall

7.1

Crew

7.8

Entertainment

6.8

Comfort

7.1

Food

6.3

Reviews

1 / 20
2.0
Mediocre

Sylvia,Aug 2026

YYZ - PHL

Our flight from Kelowna was 5 hours delayed. We missed our connection. We were able to get to a hotel by 3:00 a.m. but the breakfast cost us $40. The hotel was good. We were rescheduled for the flight the next night when it was canceled. There were no hotel vouchers available which didn't matter because there were no hotel rooms available. We decided to just drive which was not easy doing a one-way rental to the United States. Worst possible trip I've ever had

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. 1 airline 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 12 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 fly from Ottawa to Chicago O'Hare Intl Airport in about 4h 10m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 1051 km.

  • What is the cheapest airline to fly 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$ 834 on this airline. Air Canada is 17% 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: ANA (85%), United Airlines (84%), Air Canada( 82%).

  • 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$ 1,753, our data indicates the cheapest price to be C$ 335. The most popular route (Ottawa - Chicago O'Hare Intl), is priced around C$ 539.

  • 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, December is the cheapest month in which you can book a flight from Ottawa to Chicago O'Hare Intl Airport (average of C$ 745). Flying from Ottawa to Chicago O'Hare Intl Airport in March is currently the most expensive (average of C$ 1,251). 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.

See more FAQs

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

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Schaumburg
Northbrook
Des Plaines
Racine
Rockford
Naperville
Elk Grove Village
Skokie

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Ottawa to O'Hare Intl

AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 834AverageC$ 1,034FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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