Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Chicago O'Hare Intl Airport to Ottawa from C$ 188

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 30/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YOW
3 Aug — 10 Aug1
1 adult

Cheap flight deals from O'Hare Intl to Ottawa

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Ottawa (YOW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 29 July 2025.

Round-trip from

C$ 436

One-way from

C$ 188

Popular in

October

Cheapest in

March

Average price

C$ 492
WestJet
  • WestJet
  • 18/9-28/9
  • 2 total stops
  • 41h 53m total
  • Chicago to Ottawa
Search Deals
WestJet
  • WestJet
  • 30/10
  • 1 total stop
  • 9h 25m total
  • Chicago to Ottawa
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (C$ 236 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from O'Hare Intl to Ottawa

Cheapest flights from O'Hare Intl to Ottawa
Explore the most affordable flight options available from O'Hare Intl to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 July 2025.

Thu 18/95:30 p.m.ORD - YOW
1 stop30h 10mWestJet
Sun 28/96:00 a.m.YOW - ORD
1 stop11h 43mWestJet
Deal found 28/7C$ 436
Wed 10/93:50 p.m.ORD - YOW
1 stop7h 32mMultiple Airlines
Wed 17/95:55 a.m.YOW - ORD
1 stop5h 58mMultiple Airlines
Deal found 27/7C$ 438
Fri 12/98:40 a.m.ORD - YOW
1 stop4h 11mAir Canada
Fri 19/911:05 a.m.YOW - ORD
1 stop4h 50mAir Canada
Deal found 28/7C$ 472
Wed 10/98:45 a.m.ORD - YOW
1 stop6h 58mUnited Airlines
Wed 17/95:25 p.m.YOW - ORD
Nonstop2h 29mUnited Airlines
Deal found 28/7C$ 521

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl to Ottawa that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 29 July 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Ottawa that are best for you.

Fly from

O'Hare Intl

Fly to

Ottawa

Route

Depart

Return

Price

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 18/9

5:30 p.m.-12:40 a.m.

1 stop30h 10m

Ottawa

Sun 28/9

6:00 a.m.-4:43 p.m.

1 stop11h 43m

C$ 436

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Wed 10/9

3:50 p.m.-12:22 a.m.

1 stop7h 32m

Ottawa

Wed 17/9

5:55 a.m.-10:53 a.m.

1 stop5h 58m

C$ 438

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Fri 12/9

8:40 a.m.-1:51 p.m.

1 stop4h 11m

Ottawa

Fri 19/9

11:05 a.m.-2:55 p.m.

1 stop4h 50m

C$ 472

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Wed 10/9

8:45 a.m.-4:43 p.m.

1 stop6h 58m

Ottawa

Wed 17/9

5:25 p.m.-6:54 p.m.

Nonstop2h 29m

C$ 521

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 30/10

2:20 p.m.-12:45 a.m.

1 stop9h 25m

C$ 188

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Wed 20/8

8:12 p.m.-2:56 p.m.

2 stops17h 44m

C$ 221

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Sat 20/9

1:55 p.m.-5:06 p.m.

Nonstop2h 11m

C$ 241

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 30/10

8:00 a.m.-3:23 p.m.

1 stop6h 23m

C$ 364

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/7

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

Have a flexible travel schedule? Discover the best time to fly to Ottawa from O'Hare Intl 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.

Cheapflights Insights

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

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

Currently, October is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Ottawa (average of C$ 224). Flying from Chicago O'Hare Intl Airport to Ottawa in December is currently the most expensive (average of C$ 326). 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 ORD to YOW?

Find hourly flight availability from O'Hare Intl to Ottawa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 July 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 40% on flights from Chicago O'Hare Intl Airport to Ottawa by exploring options for tickets in the afternoon.

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

Explore weekly flight availability from O'Hare Intl to Ottawa. 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 29 July 2025.

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

Reviews of airlines servicing Ottawa

Get insights into the airlines that provide service to Ottawa. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ottawa. Reviews last updated 29 July 2025.
Read through reviews of airlines operating flights from Chicago O'Hare Intl Airport to Ottawa, such as United Airlines,WestJet, andAir Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,899 reviews
Check prices

Crew

8.1

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,899 reviews
United Airlines
7.4
Good
8,899 reviews
Check prices

Crew

8.1

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
WestJet
7.2
Good
2,973 reviews
United Airlines
7.4
Good
8,899 reviews
Check prices

Crew

8.1

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.1
Good
9,822 reviews
United Airlines
7.4
Good
8,899 reviews
Check prices

Crew

8.1

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Ottawa. 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 into for flights to Ottawa from Chicago O'Hare Intl?

    Located just 10.6 km from the city centre, Ottawa is the airport most travellers will use when flying to Ottawa from Chicago O'Hare Intl. Booking flights from Chicago O'Hare Intl to Ottawa (YOW) should be relatively easy as there are 13 daily inbound flights from Chicago O'Hare Intl from 0 different airlines.

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

    WestJet, at C$ 436, was found to be the cheapest airline from Chicago O'Hare Intl Airport to Ottawa.Alternate airlines to your destination round-trip include Air Canada and United Airlines. WestJet is currently priced 38% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to Ottawa one-way?

    For one-way options, check prices for WestJet. According to our data, you can fly for as low as C$ 188. Users have also found prices from C$ 241 and C$ 364 on United Airlines and Air Canada, respectively.

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

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from O'Hare Intl to Ottawa 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 Chicago O'Hare Intl Airport to Ottawa?

    Currently, October is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Ottawa (average of C$ 224). Flying from Chicago O'Hare Intl Airport to Ottawa in December is currently the most expensive (average of C$ 326). 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 Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Brockville
Smiths Falls
Perth
Prescott
Pembroke
Wakefield

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Deals for O'Hare Intl to Ottawa flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from O'Hare Intl to Ottawa.

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

Need flexible booking options for your flight to Ottawa from O'Hare Intl? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes! Start tracking prices for O'Hare Intl to Ottawa flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.