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Cheap flights from Chicago to Ottawa from C$ 157

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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — YOW
17 Jun — 24 Jun1
1 adult

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 12 June 2025.

Round-trip from

C$ 349

One-way from

C$ 157

Popular in

November

Cheapest in

May

Average price

C$ 648

Good one-way deal

C$ 1,004 or less
Porter Airlines
  • Porter Airlines
  • 24/7-29/7
  • 2 total stops
  • 16h 02m total
  • Chicago to Ottawa
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Porter Airlines
  • Porter Airlines
  • 12/8
  • 1 total stop
  • 6h 23m total
  • Chicago to Ottawa
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Highest demand for flights based on searches. 6% potential increase in price (C$ 62 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease (C$ 18 potential savings vs. average RT price).
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Average for round-trip flights in June 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 12 June 2025.

Thu 24/79:40 a.m.MDW - YOW
1 stop8h 13mPorter Airlines
Tue 29/79:35 a.m.YOW - MDW
1 stop7h 49mPorter Airlines
Deal found 12/6C$ 349
Wed 9/79:55 a.m.ORD - YOW
1 stop13h 27mMultiple Airlines
Wed 16/75:55 a.m.YOW - ORD
1 stop10h 09mMultiple Airlines
Deal found 12/6C$ 468
Sun 27/79:40 a.m.MDW - YOW
1 stop8h 13mMultiple Airlines
Sun 3/88:35 a.m.YOW - MDW
1 stop25h 10mMultiple Airlines
Deal found 12/6C$ 558
Sat 26/78:40 a.m.ORD - YOW
1 stop4h 04mAir Canada
Sat 2/85:15 a.m.YOW - ORD
1 stop4h 54mAir Canada
Deal found 11/6C$ 570
Fri 25/71:56 p.m.ORD - YOW
Nonstop2h 10mUnited Airlines
Fri 1/85:25 p.m.YOW - ORD
Nonstop2h 28mUnited Airlines
Deal found 10/6C$ 638
Thu 14/85:30 p.m.ORD - YOW
1 stop12h 15mWestJet
Sun 17/86:00 a.m.YOW - ORD
1 stop11h 44mWestJet
Deal found 11/6C$ 656
Tue 8/76:00 a.m.MDW - YOW
2 stops17h 22mDelta
Sat 12/75:55 a.m.YOW - MDW
2 stops7h 34mDelta
Deal found 10/6C$ 1,016
Fri 17/101:05 p.m.MDW - YOW
2 stops15h 18mWestJet
Mon 20/106:00 a.m.YOW - MDW
2 stops16h 44mWestJet
Deal found 9/6C$ 1,447

Cheapflights Fare Finder

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 12 June 2025.
Use the filters below to find and compare flights from Chicago to Ottawa that are best for you.

Fly from

Chicago

Fly to

Ottawa

Route

Depart

Return

Price

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Thu 24/7

9:40 a.m.-6:53 p.m.

1 stop8h 13m

Ottawa

Tue 29/7

9:35 a.m.-4:24 p.m.

1 stop7h 49m

C$ 349

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Fri 29/8

5:30 p.m.-6:21 p.m.

1 stop23h 51m

Ottawa

Mon 1/9

7:50 a.m.-4:43 p.m.

1 stop9h 53m

C$ 442

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Wed 9/7

9:55 a.m.-12:22 a.m.

1 stop13h 27m

Ottawa

Wed 16/7

5:55 a.m.-3:04 p.m.

1 stop10h 09m

C$ 468

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Sun 27/7

9:40 a.m.-6:53 p.m.

1 stop8h 13m

Ottawa

Sun 3/8

8:35 a.m.-8:45 a.m.

1 stop25h 10m

C$ 558

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Sat 26/7

8:40 a.m.-1:44 p.m.

1 stop4h 04m

Ottawa

Sat 2/8

5:15 a.m.-9:09 a.m.

1 stop4h 54m

C$ 570

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Fri 25/7

6:15 p.m.-9:35 p.m.

Nonstop2h 20m

Ottawa

Fri 1/8

5:25 p.m.-6:53 p.m.

Nonstop2h 28m

C$ 638

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Mon 30/6

6:00 a.m.-12:22 a.m.

2 stops17h 22m

Ottawa

Tue 29/7

5:55 a.m.-4:33 p.m.

2 stops11h 38m

C$ 1,004

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Tue 8/7

6:00 a.m.-12:22 a.m.

2 stops17h 22m

Ottawa

Sat 12/7

5:55 a.m.-12:29 p.m.

2 stops7h 34m

C$ 1,016

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Fri 17/10

1:05 p.m.-5:23 a.m.

2 stops15h 18m

Ottawa

Mon 20/10

6:00 a.m.-9:44 p.m.

2 stops16h 44m

C$ 1,447

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Tue 12/8

9:40 a.m.-5:03 p.m.

1 stop6h 23m

C$ 157

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/6

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.

Cheapflights Insights

Everything you need to know about your flight from Chicago to Ottawa

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 12 June 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 40% versus a flight in the morning.

Weekly flight availability from Chicago to Ottawa

Explore weekly flight availability from Chicago 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 12 June 2025.

The most flights from CHI to YOW are scheduled on a Monday (13 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (10 on average).

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 12 June 2025.
Read reviews from past customers who have flown Porter Airlines, Delta 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.
Porter Airlines
8.0
Very good
288 reviews
Check prices

Food

7.6

Overall

8.0

Comfort

8.1

Entertainment

7.0

Boarding

8.2

Crew

8.7

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
Porter Airlines
8.0
Very good
288 reviews
Porter Airlines
8.0
Very good
288 reviews
Check prices

Food

7.6

Overall

8.0

Comfort

8.1

Entertainment

7.0

Boarding

8.2

Crew

8.7

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
Delta
8.0
Very good
7,950 reviews
Porter Airlines
8.0
Very good
288 reviews
Check prices

Food

7.6

Overall

8.0

Comfort

8.1

Entertainment

7.0

Boarding

8.2

Crew

8.7

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
United Airlines
7.4
Good
8,790 reviews
Porter Airlines
8.0
Very good
288 reviews
Check prices

Food

7.6

Overall

8.0

Comfort

8.1

Entertainment

7.0

Boarding

8.2

Crew

8.7

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
WestJet
7.2
Good
2,868 reviews
Porter Airlines
8.0
Very good
288 reviews
Check prices

Food

7.6

Overall

8.0

Comfort

8.1

Entertainment

7.0

Boarding

8.2

Crew

8.7

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
Air Canada
7.1
Good
9,531 reviews
Porter Airlines
8.0
Very good
288 reviews
Check prices

Food

7.6

Overall

8.0

Comfort

8.1

Entertainment

7.0

Boarding

8.2

Crew

8.7

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!

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 12 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, Porter Airlines (C$ 349), WestJet (C$ 442), and Air Canada (C$ 570) offers the cheapest pricing from Chicago to Ottawa. Porter Airlines is priced at 47% 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$ 157. WestJet flights start at C$ 235 while deals on United Airlines start at C$ 286 one-way.

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

    Consider GoJet (92%), ANA (88%) or Air Canada (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$ 1,050 for a flight from Chicago to Ottawa. The cheapest flight overall is C$ 142 while the most popular route, (Chicago O'Hare Intl - Ottawa) is currently priced at C$ 521.

  • 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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