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Cheap flights from Chicago to Ottawa from C$ 185

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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — YOW
13 Mar — 20 Mar1
1 adult

The best prices from Chicago to Ottawa are usually found in July or January, booked 58 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Chicago to Ottawa

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) 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 8 March 2025.

Round-trip from

C$ 191

One-way from

C$ 185

Popular in

November

Cheapest in

July

Average price

C$ 791

Good one-way deal

C$ 365 or less
Air Canada
  • Air Canada
  • 25/4-1/5
  • 2 total stops
  • 8h 44m total
  • Chicago to Ottawa
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Porter Airlines
  • Porter Airlines
  • 11/4
  • 1 total stop
  • 6h 19m total
  • Chicago to Ottawa
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 42 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 19 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a one-way flight from Chicago (CHI) to Ottawa.
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Find flight deals from Chicago to Ottawa

Cheapest flights from Chicago to Ottawa
Explore the most affordable flight options available from Chicago to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 March 2025.

Fri 25/48:25 p.m.ORD - YOW
1 stop4h 09mAir Canada
Thu 1/59:20 a.m.YOW - ORD
1 stop4h 35mAir Canada
Deal found 6/3C$ 191
Wed 9/45:35 p.m.MDW - YOW
1 stop3h 54mPorter Airlines
Sat 19/49:20 a.m.YOW - MDW
1 stop3h 40mPorter Airlines
Deal found 7/3C$ 383
Wed 9/411:54 a.m.ORD - YOW
1 stop26h 25mMultiple Airlines
Sun 27/47:00 a.m.YOW - ORD
1 stop26h 04mMultiple Airlines
Deal found 5/3C$ 416
Wed 9/411:15 a.m.MDW - YOW
1 stop4h 54mMultiple Airlines
Sat 19/49:20 a.m.YOW - MDW
1 stop3h 40mMultiple Airlines
Deal found 6/3C$ 542
Sun 15/61:40 p.m.ORD - YOW
1 stop25h 40mWestJet
Fri 20/65:15 p.m.YOW - ORD
1 stop20h 24mWestJet
Deal found 6/3C$ 727
Thu 10/46:19 p.m.ORD - YOW
Nonstop2h 16mUnited Airlines
Sun 13/46:33 a.m.YOW - ORD
Nonstop2h 29mUnited Airlines
Deal found 6/3C$ 790
Thu 8/59:00 a.m.ORD - YOW
2 stops14h 22mDelta
Sun 11/55:55 a.m.YOW - ORD
2 stops7h 46mDelta
Deal found 6/3C$ 851
Thu 8/59:15 a.m.MDW - YOW
2 stops14h 07mDelta
Sun 11/55:55 a.m.YOW - MDW
2 stops7h 33mDelta
Deal found 6/3C$ 851
Fri 4/412:48 p.m.MDW - YOW
2 stops10h 21mWestJet
Wed 9/45:55 a.m.YOW - MDW
2 stops28h 12mWestJet
Deal found 7/3C$ 1,475

Find flights from Chicago to Ottawa within your budget

Customize your flight search to find flights from Chicago 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 8 March 2025.

Fly from

Chicago

Fly to

Ottawa

Route

Depart

Return

Price

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Fri 25/4

8:25 p.m.-1:34 a.m.

1 stop4h 09m

Ottawa

Thu 1/5

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

1 stop4h 35m

C$ 191

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Wed 9/4

5:35 p.m.-10:29 p.m.

1 stop3h 54m

Ottawa

Sat 19/4

9:20 a.m.-12:00 p.m.

1 stop3h 40m

C$ 383

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Wed 9/4

11:54 a.m.-3:19 p.m.

1 stop26h 25m

Ottawa

Sun 27/4

7:00 a.m.-8:04 a.m.

1 stop26h 04m

C$ 416

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Wed 9/4

11:15 a.m.-5:09 p.m.

1 stop4h 54m

Ottawa

Sat 19/4

9:20 a.m.-12:00 p.m.

1 stop3h 40m

C$ 542

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Sun 15/6

1:40 p.m.-4:20 p.m.

1 stop25h 40m

Ottawa

Fri 20/6

5:15 p.m.-12:39 p.m.

1 stop20h 24m

C$ 727

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 10/4

6:19 p.m.-9:35 p.m.

Nonstop2h 16m

Ottawa

Mon 14/4

6:33 a.m.-8:02 a.m.

Nonstop2h 29m

C$ 790

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 8/5

9:00 a.m.-12:22 a.m.

2 stops14h 22m

Ottawa

Sun 11/5

5:55 a.m.-12:41 p.m.

2 stops7h 46m

C$ 851

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Thu 8/5

9:15 a.m.-12:22 a.m.

2 stops14h 07m

Ottawa

Sun 11/5

5:55 a.m.-12:28 p.m.

2 stops7h 33m

C$ 851

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Fri 4/4

12:48 p.m.-12:09 a.m.

2 stops10h 21m

Ottawa

Wed 9/4

5:55 a.m.-9:07 a.m.

2 stops28h 12m

C$ 1,475

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Fri 11/4

11:15 a.m.-6:34 p.m.

1 stop6h 19m

C$ 185

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 17 results
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Best time to book a flight from Chicago to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from Chicago 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 Chicago to Ottawa

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

How far ahead should I book a flight from Chicago to Ottawa?

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Ottawa. Price data was last updated on 28 February 2025.

To ensure you get the cheapest price possible for a flight from Chicago to Ottawa, you should look to book at least 58 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Chicago to Ottawa?

Currently, October is the cheapest month in which you can book a flight from Chicago to Ottawa (average of C$ 224). Flying from Chicago 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 CHI to YOW?

Find hourly flight availability from Chicago 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 8 March 2025.

When flying from Chicago to Ottawa, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 45% versus a flight at noon.

Rainfall in Ottawa by month

Plan your trip to Ottawa by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ottawa ranges from 50.0 - 93.0 mm per month. June is typically the wettest month, when rainfall can reach 93.0 mm. February is typically the driest time to visit Ottawa when rainfall is around 50.0 mm.

Temperature in Ottawa by month

Plan your trip to Ottawa by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ottawa, 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 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -10.0 C).

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 8 March 2025.
Read reviews from past customers who have flown Delta, Porter Airlines and United Airlines from Chicago to Ottawa. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,024 reviews
Check prices

Crew

8.5

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,024 reviews
Delta
8.0
Very good
8,024 reviews
Check prices

Crew

8.5

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Porter Airlines
7.9
Good
281 reviews
Delta
8.0
Very good
8,024 reviews
Check prices

Crew

8.5

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,649 reviews
Delta
8.0
Very good
8,024 reviews
Check prices

Crew

8.5

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

WestJet
7.2
Good
2,783 reviews
Delta
8.0
Very good
8,024 reviews
Check prices

Crew

8.5

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Canada
7.0
Good
8,851 reviews
Delta
8.0
Very good
8,024 reviews
Check prices

Crew

8.5

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Chicago 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?

    If you book a flight to Ottawa from Chicago, you will be flying to Ottawa, which is the city’s only airport. Ottawa (YOW) is located 10.6 km from the centre of Ottawa. There are 9 flights from Chicago to Ottawa per day from 0 different airlines.

  • What are the cheapest airlines flying from Chicago to Ottawa round-trip?

    According to our current data, Air Canada (C$ 191), Porter Airlines (C$ 383), and WestJet (C$ 727) offers the cheapest pricing from Chicago to Ottawa. Air Canada is priced at 73% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Chicago to Ottawa one-way?

    To fly one-way, consider booking your trip with Porter Airlines, which is currently one of the cheapest options available, starting at C$ 185. WestJet flights start at C$ 221 while deals on Air Canada start at C$ 361 one-way.

  • What are the most reliable airlines from Chicago to Ottawa?

    Consider Air Canada (88%), Air New Zealand (88%) or Avianca (87%) when booking your flight. These represent the most reliable airlines when flying from Chicago to Ottawa.

  • What are the cheapest flights from Chicago to Ottawa?

    On average you can expect to pay C$ 454 for a flight from Chicago to Ottawa. The cheapest flight overall is C$ 364 while the most popular route, (Chicago O'Hare Intl - Ottawa) is currently priced at C$ 411.

  • Can I find deals for flights from Chicago to Ottawa that include hotel bookings?

    Yes. In addition to deals on Chicago to Ottawa flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Ottawa?

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

  • Can I find deals for business class flights from Chicago to Ottawa?

    Yes. Cheapflights offers flight deals from Chicago 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 to Ottawa?

    Currently, October is the cheapest month in which you can book a flight from Chicago to Ottawa (average of C$ 224). Flying from Chicago 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

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