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

According to our current data, United Airlines ($422), WestJet ($425), and Air Canada ($428) offers the cheapest pricing from Ottawa to Chicago O'Hare Intl Airport. These flights start at 21% lower than the current average price 3 months from now.

What is the cheapest day to fly from Ottawa to Chicago O'Hare Intl Airport?

Travelers seeking maximum savings on their Ottawa to Chicago O'Hare Intl Airport flight should consider departing on Friday mornings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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

On average you can expect to pay $776 for a flight from Ottawa to Chicago O'Hare Intl Airport. The cheapest flight overall is $227 while the most popular route, (Ottawa - Chicago O'Hare Intl) is currently priced at $282.

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

The top 3 most reliable airlines when flying from Ottawa to Chicago O'Hare Intl Airport are Avianca (80%), ANA (72%) and Republic Airways (71%).

What is the cheapest day to fly round-trip from Ottawa to Chicago O'Hare Intl Airport?

Sunday flights are found to be more expensive to fly from Ottawa to Chicago O'Hare Intl Airport. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Chicago O'Hare Intl Airport.

How far in advance should I book a flight from Ottawa to Chicago O'Hare Intl Airport?

To save on the cost of your flight from Ottawa to Chicago O'Hare Intl Airport, book at least 50 days before your planned departure. Booking around this time can save you about 107% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $426 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $577.

What is the cheapest month to fly from Ottawa to Chicago O'Hare Intl Airport?

Due to multiple factors, expect to potentially pay more when booking in November. For low rates, April can be a great choice for travel to Chicago O'Hare Intl Airport. Flights to Chicago O'Hare Intl Airport from Ottawa in April are about $410 on average during April, but can be found for as low as $244.

Most accurate provider : When it comes to deals on Ottawa-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ottawa-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ottawa-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Ottawa-Chicago O'Hare Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ottawa-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Ottawa (YOW), located 6.6 mi from the city center, 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 8 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.

$154+ Flights from Ottawa to Chicago O'Hare Intl Airport

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Find cheap flights from Ottawa to O'Hare Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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The best prices from Ottawa to Chicago O'Hare Intl are usually found in December or April, booked 52 days in advance, depart on a Tuesday or Friday and return on a Monday

Cheap flight deals from Ottawa to O'Hare Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$282 (Kiwi.com)
One-way from	$154 (Mytrip)
Popular in	May
Cheapest in	December
Average price	$595

Provider with most accurate pricing for Ottawa-Chicago O'Hare Intl flight deals.

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Provider most trusted by Cheapflights users for Ottawa-Chicago O'Hare Intl flights.

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From Ottawa to Chicago O'Hare Intl

Search Deals

One-way flight from Ottawa to Chicago O'Hare Intl

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High demand for flights, 1% potential price rise

Search Deals

Best time to find cheap flights, 1% potential price drop

Search Deals

Average for round-trip flights in January 2025

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Find flight deals from Ottawa to O'Hare Intl

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 January 21, 2025.

Tue 2/44:15 pmYOW - ORD

1 stop21h 42mMultiple Airlines

Tue 2/115:35 amORD - YOW

1 stop8h 22mMultiple Airlines

Deal found 1/20

$282

Thu 3/611:25 amYOW - ORD

Nonstop2h 31mUnited Airlines

Thu 3/131:58 pmORD - YOW

Nonstop2h 08mUnited Airlines

Deal found 1/20

$422

Fri 6/65:15 pmYOW - ORD

1 stop20h 24mWestJet

Mon 6/95:30 pmORD - YOW

1 stop20h 26mWestJet

Deal found 1/20

$425

Tue 4/86:33 amYOW - ORD

Nonstop2h 29mAir Canada

Sat 4/123:35 pmORD - YOW

1 stop5h 37mAir Canada

Deal found 1/20

$428

Tue 2/45:55 amYOW - ORD

2 stops15h 00mDelta

Tue 2/117:40 pmORD - YOW

2 stops27h 29mDelta

Deal found 1/20

$717

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 January 21, 2025.

Tue 2/44:15 pmYOW - ORD

1 stop21h 42mMultiple Airlines

Tue 2/115:35 amORD - YOW

1 stop8h 22mMultiple Airlines

Deal found 1/20

$282

Thu 3/611:25 amYOW - ORD

Nonstop2h 31mUnited Airlines

Thu 3/131:58 pmORD - YOW

Nonstop2h 08mUnited Airlines

Deal found 1/20

$422

Fri 6/65:15 pmYOW - ORD

1 stop20h 24mWestJet

Mon 6/95:30 pmORD - YOW

1 stop20h 26mWestJet

Deal found 1/20

$425

Tue 4/86:33 amYOW - ORD

Nonstop2h 29mAir Canada

Sat 4/123:35 pmORD - YOW

1 stop5h 37mAir Canada

Deal found 1/20

$428

Tue 2/45:55 amYOW - ORD

2 stops15h 00mDelta

Tue 2/117:40 pmORD - YOW

2 stops27h 29mDelta

Deal found 1/20

$717

Last-minute flights from Ottawa to O'Hare Intl
Discover last-minute flight deals from Ottawa to O'Hare Intl. Data last updated January 21, 2025 and is based on user searches.

Sat 1/256:30 amYOW - ORD

2 stops40h 57mMultiple Airlines

Mon 1/275:35 amORD - YOW

1 stop8h 41mMultiple Airlines

Deal found 1/20

$460

Sat 1/256:20 amYOW - ORD

Nonstop2h 40mAir Canada

Mon 1/277:20 amORD - YOW

1 stop6h 43mAir Canada

Deal found 1/20

$845

Tue 2/44:15 pmYOW - ORD

1 stop21h 42mMultiple Airlines

Tue 2/115:35 amORD - YOW

1 stop8h 22mMultiple Airlines

Deal found 1/20

$282

Tue 2/45:55 amYOW - ORD

2 stops15h 00mDelta

Tue 2/117:40 pmORD - YOW

2 stops27h 29mDelta

Deal found 1/20

$717

Fri 2/75:55 amYOW - ORD

2 stops11h 14mWestJet

Mon 2/101:40 pmORD - YOW

2 stops9h 29mWestJet

Deal found 1/20

$579

Mon 2/176:20 amYOW - ORD

Nonstop2h 40mAir Canada

Mon 2/246:13 pmORD - YOW

Nonstop2h 11mAir Canada

Deal found 1/20

$454

Thu 2/2011:25 amYOW - ORD

Nonstop2h 34mUnited Airlines

Sun 2/236:30 amORD - YOW

1 stop7h 05mUnited Airlines

Deal found 1/20

$435

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 January 21, 2025.

Wed 2/199:20 amYOW - ORD

1 stop15h 38mMultiple Airlines

Deal found 1/20

$154

Wed 2/195:00 pmYOW - ORD

Nonstop2h 34mUnited Airlines

Deal found 1/20

$235

Sat 7/56:40 pmYOW - ORD

Nonstop2h 08mAir Canada

Deal found 1/20

$240

Find flights from Ottawa to O'Hare Intl within your budget

Fly from

Fly to

Route

Depart

Return

Price

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Tue 2/4

4:15 pm-12:57 pm

1 stop21h 42m

Chicago O'Hare Intl

Tue 2/11

5:35 am-2:57 pm

1 stop8h 22m

$282

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Thu 3/6

11:25 am-12:56 pm

Nonstop2h 31m

Chicago O'Hare Intl

Thu 3/13

1:58 pm-5:06 pm

Nonstop2h 08m

$422

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Fri 6/6

5:15 pm-12:39 pm

1 stop20h 24m

Chicago O'Hare Intl

Mon 6/9

5:30 pm-2:56 pm

1 stop20h 26m

$425

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Tue 4/8

6:33 am-8:02 am

Nonstop2h 29m

Chicago O'Hare Intl

Sat 4/12

3:35 pm-10:12 pm

1 stop5h 37m

$428

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Tue 2/4

5:55 am-7:55 pm

2 stops15h 00m

Chicago O'Hare Intl

Tue 2/11

7:40 pm-12:09 am

2 stops27h 29m

$717

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Wed 2/19

9:20 am-11:58 pm

1 stop15h 38m

$154

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Wed 2/19

5:00 pm-6:34 pm

Nonstop2h 34m

$235

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Sat 7/5

6:40 pm-7:48 pm

Nonstop2h 08m

$240

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Compare providers for flights from Ottawa to O'Hare Intl

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ottawa to O'Hare Intl in January.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Expedia	Price Accuracy1 star	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Ottawa-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ottawa-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ottawa-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Ottawa-Chicago O'Hare Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ottawa-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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.

Travel insights for flights from Ottawa to O'Hare Intl

Get recent, data-driven insights about flights from Ottawa to O'Hare Intl including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Ottawa to Chicago O'Hare Intl Airport?

Booking 52 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ottawa to Chicago O'Hare Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, August is the cheapest month in which you can book a flight from Ottawa to Chicago O'Hare Intl Airport (average of $245). Flying from Ottawa to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $320). 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 fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 4% versus a flight at noon.

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

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

Rainfall in O'Hare Intl by month

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 1.7 in.

Temperature in O'Hare Intl by month

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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing O'Hare Intl

Delta

8.0

Very good

8,521 reviews

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

8,521 reviews

Delta

8.0

Very good

8,521 reviews

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

8,982 reviews

Delta

8.0

Very good

8,521 reviews

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

WestJet

7.2

Good

2,828 reviews

Delta

8.0

Very good

8,521 reviews

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air Canada

7.0

Good

8,627 reviews

Delta

8.0

Very good

8,521 reviews

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What airport do you fly from for flights from Ottawa to Chicago O'Hare Intl?
Ottawa (YOW), located 6.6 mi from the city center, 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 8 outbound flights to Chicago O'Hare Intl per day.
What are the cheapest airlines flying from Ottawa to Chicago O'Hare Intl Airport round-trip?
According to our current data, United Airlines ($422), WestJet ($425), and Air Canada ($428) offers the cheapest pricing from Ottawa to Chicago O'Hare Intl Airport. These flights start at 21% lower than the current average price 3 months from now.
What are the most reliable airlines from Ottawa to Chicago O'Hare Intl Airport?
The top 3 most reliable airlines when flying from Ottawa to Chicago O'Hare Intl Airport are Avianca (80%), ANA (72%) and Republic Airways (71%).
What are the cheapest flights from Ottawa to Chicago O'Hare Intl Airport?
On average you can expect to pay $776 for a flight from Ottawa to Chicago O'Hare Intl Airport. The cheapest flight overall is $227 while the most popular route, (Ottawa - Chicago O'Hare Intl) is currently priced at $282.
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, August is the cheapest month in which you can book a flight from Ottawa to Chicago O'Hare Intl Airport (average of $245). Flying from Ottawa to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $320). 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
United Airlines	Cheapest$406	Average$547	FlexibilityNo cancel fee	On-time69%
Air Canada	Cheapest$423	Average$554	FlexibilityNo cancel fee	On-time67%

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$154+ Cheap flights from Ottawa (YOW) to O'Hare Intl (ORD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/19. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ottawa to O'Hare Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

The best prices from Ottawa to Chicago O'Hare Intl are usually found in December or April, booked 52 days in advance, depart on a Tuesday or Friday and return on a Monday

Cheap flight deals from Ottawa to O'Hare Intl

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find 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 January 21, 2025.

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 January 21, 2025.

Find flights from Ottawa to O'Hare Intl within your budget

Compare providers for flights from Ottawa to O'Hare Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ottawa to O'Hare Intl in January.

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.

Travel insights for flights from Ottawa to O'Hare Intl

Get recent, data-driven insights about flights from Ottawa to O'Hare Intl including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Ottawa to Chicago O'Hare Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Ottawa to O'Hare Intl. Price data was last updated on January 17, 2025.

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?

Find hourly flight availability from Ottawa to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

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

Explore weekly flight availability from Ottawa to O'Hare Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated January 21, 2025.

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing O'Hare Intl

Related info for your journey

Find useful and relevant information for your journey from Ottawa to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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?

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Alternative routes for Ottawa to O'Hare Intl

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Top 2 airlines flying from Ottawa to O'Hare Intl

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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 January 21, 2025.