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Cheap flights from Chicago O'Hare Intl Airport to Ottawa from C$ 177

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 16/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YOW
11 Oct — 18 Oct1
1 adult
1 adult, Economy

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 11 September 2025.

Round-trip from

C$ 414

One-way from

C$ 177

Popular in

October

Cheapest in

July

Average price

C$ 658

Good one-way deal

C$ 243 or less
WestJet
  • WestJet
  • 16/10-18/10
  • 2 total stops
  • 23h 58m total
  • Chicago to Ottawa
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WestJet
  • WestJet
  • 16/10
  • 3 total stops
  • 29h 52m total
  • Chicago to Ottawa
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Highest demand for flights based on searches. 20% potential increase in price (C$ 237 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 35 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a one-way flight from Chicago O'Hare Intl to Ottawa.
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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 11 September 2025.

Sat 11/105:30 p.m.ORD - YOW
2 stops23h 28mMultiple Airlines
Wed 22/104:25 p.m.YOW - ORD
1 stop16h 49mMultiple Airlines
Deal found 9/9C$ 381
Sat 11/105:30 p.m.ORD - YOW
2 stops23h 28mMultiple Airlines
Mon 20/107:50 a.m.YOW - ORD
1 stop9h 53mMultiple Airlines
Deal found 9/9C$ 385
Sat 11/105:30 p.m.ORD - YOW
2 stops23h 28mMultiple Airlines
Sat 18/103:50 p.m.YOW - ORD
1 stop8h 55mMultiple Airlines
Deal found 9/9C$ 387
Sat 11/105:30 p.m.ORD - YOW
2 stops23h 28mMultiple Airlines
Tue 21/103:50 p.m.YOW - ORD
1 stop8h 55mMultiple Airlines
Deal found 9/9C$ 392
Wed 1/105:17 p.m.ORD - YOW
1 stop22h 40mMultiple Airlines
Mon 6/103:50 p.m.YOW - ORD
1 stop8h 55mMultiple Airlines
Deal found 9/9C$ 402
Fri 10/107:43 p.m.ORD - YOW
1 stop20h 37mMultiple Airlines
Thu 23/106:00 a.m.YOW - ORD
1 stop11h 43mMultiple Airlines
Deal found 9/9C$ 412
Fri 10/105:30 p.m.ORD - YOW
1 stop23h 50mWestJet
Sun 12/107:50 a.m.YOW - ORD
1 stop9h 53mWestJet
Deal found 9/9C$ 416
Thu 16/105:30 p.m.ORD - YOW
2 stops18h 33mMultiple Airlines
Sat 18/103:50 p.m.YOW - ORD
1 stop8h 55mMultiple Airlines
Deal found 9/9C$ 418
Fri 10/107:43 p.m.ORD - YOW
1 stop20h 37mMultiple Airlines
Wed 22/104:25 p.m.YOW - ORD
1 stop16h 49mMultiple Airlines
Deal found 9/9C$ 420
Fri 10/107:43 p.m.ORD - YOW
1 stop20h 37mMultiple Airlines
Mon 20/107:50 a.m.YOW - ORD
1 stop9h 53mMultiple Airlines
Deal found 9/9C$ 421
Sun 12/105:30 p.m.ORD - YOW
1 stop12h 15mWestJet
Sat 18/106:00 a.m.YOW - ORD
1 stop11h 43mWestJet
Deal found 9/9C$ 424

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 11 September 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 16/10

1:26 p.m.-12:22 a.m.

2 stops9h 56m

Ottawa

Fri 17/10

3:50 p.m.-11:45 p.m.

1 stop8h 55m

C$ 442

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Tue 2/12

6:05 a.m.-5:13 p.m.

1 stop10h 08m

Ottawa

Mon 8/12

9:30 a.m.-6:44 p.m.

1 stop10h 14m

C$ 502

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Sun 12/10

5:30 p.m.-6:45 a.m.

1 stop12h 15m

Ottawa

Sat 18/10

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

1 stop11h 43m

C$ 503

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Mon 3/11

6:00 a.m.-5:25 p.m.

2 stops10h 25m

Ottawa

Wed 19/11

7:25 p.m.-9:00 p.m.

3 stops26h 35m

C$ 522

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 9/10

4:59 p.m.-5:20 p.m.

1 stop23h 21m

Ottawa

Sat 11/10

3:50 p.m.-11:45 p.m.

1 stop8h 55m

C$ 524

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Mon 3/11

6:40 a.m.-5:25 p.m.

1 stop9h 45m

Ottawa

Tue 18/11

9:30 a.m.-5:04 p.m.

1 stop8h 34m

C$ 532

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Sat 10/1

10:15 a.m.-5:25 p.m.

1 stop6h 10m

Ottawa

Mon 12/1

4:15 p.m.-9:23 a.m.

1 stop18h 08m

C$ 552

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Sat 11/10

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

Nonstop2h 11m

Ottawa

Sun 19/10

6:33 a.m.-8:00 a.m.

Nonstop2h 27m

C$ 554

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 16/10

6:06 p.m.-9:35 p.m.

Nonstop2h 29m

Ottawa

Sat 18/10

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

Nonstop2h 29m

C$ 554

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Sun 12/10

6:06 p.m.-9:35 p.m.

Nonstop2h 29m

Ottawa

Sat 18/10

6:33 a.m.-8:00 a.m.

Nonstop2h 27m

C$ 554

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 21 results
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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 11 September 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.

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 11 daily inbound flights from Chicago O'Hare Intl from 0 different airlines.

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

    For as low as C$ 503, WestJet can have you in Ottawa from Chicago O'Hare Intl Airport in 12h 15m. The distance between Chicago O'Hare Intl Airport and Ottawa is about 1051 km.

  • 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%), United Airlines (80%), Republic Airways( 80%).

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

    Looking for the cheapest flight from Chicago O'Hare Intl Airport to Ottawa? While on average our users pay C$ 243, our data indicates the cheapest price to be C$ 243. The most popular route (Chicago O'Hare Intl - Ottawa), is priced around C$ 424.

  • 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

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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.

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