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$115+ Cheap flights from Chicago (CHI) to Ottawa (YOW)

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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — YOW
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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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 August 14, 2025.

Round-trip from

$281
(Kiwi.com)

One-way from

$115
(Kiwi.com)

Popular in

November

Cheapest in

May

Average price

$579

Good round-trip deal

$499 or less

Good one-way deal

$263 or less
From Chicago (CHI) to Ottawa
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One-way flight from Chicago (CHI) to Ottawa
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Highest demand for flights based on searches. 7% potential increase in price ($38 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Chicago (CHI) to Ottawa.
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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 August 14, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/49:35 amMDW - YOW
1 stop6h 29mMultiple Airlines
Mon 9/85:55 amYOW - MDW
1 stop11h 29mMultiple Airlines
Deal found 8/14$281
This Kiwi.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/59:35 amMDW - YOW
1 stop6h 29mMultiple Airlines
Mon 9/85:55 amYOW - MDW
1 stop11h 29mMultiple Airlines
Deal found 8/14$283
This oojo deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/175:30 pmORD - YOW
1 stop30h 10mWestJet
Mon 10/207:50 amYOW - ORD
1 stop9h 53mWestJet
Deal found 8/13$297
This oojo deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/125:30 pmORD - YOW
1 stop30h 10mWestJet
Sat 10/186:00 amYOW - ORD
1 stop11h 43mWestJet
Deal found 8/14$307
This oojo deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/115:30 pmORD - YOW
1 stop23h 50mWestJet
Sun 10/196:00 amYOW - ORD
1 stop11h 43mWestJet
Deal found 8/14$309
This oojo deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/155:30 pmORD - YOW
1 stop30h 10mWestJet
Fri 9/195:15 pmYOW - ORD
1 stop20h 24mWestJet
Deal found 8/13$311
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/209:35 amMDW - YOW
1 stop7h 34mMultiple Airlines
Sun 9/284:25 pmYOW - MDW
1 stop15h 58mMultiple Airlines
Deal found 8/13$317
This oojo deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/125:30 pmORD - YOW
1 stop20h 26mWestJet
Fri 9/195:15 pmYOW - ORD
1 stop20h 24mWestJet
Deal found 8/13$320
This oojo deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/271:40 pmORD - YOW
1 stop25h 39mWestJet
Tue 9/306:00 amYOW - ORD
1 stop11h 43mWestJet
Deal found 8/14$321
This Kiwi.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/129:35 amMDW - YOW
1 stop13h 47mMultiple Airlines
Mon 9/155:55 amYOW - MDW
1 stop11h 29mMultiple Airlines
Deal found 8/14$323
This Kiwi.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/139:35 amMDW - YOW
1 stop13h 47mMultiple Airlines
Mon 9/151:25 pmYOW - MDW
1 stop3h 59mMultiple Airlines
Deal found 8/14$327
This Booking.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/59:35 amMDW - YOW
1 stop6h 29mPorter Airlines
Mon 9/811:00 amYOW - MDW
1 stop6h 24mPorter Airlines
Deal found 8/14$332

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 2,558,603 searches. Data last updated August 14, 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 9/4

9:35 am-5:04 pm

1 stop6h 29m

Ottawa

Mon 9/8

5:55 am-4:24 pm

1 stop11h 29m

$281

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Fri 9/5

9:35 am-5:04 pm

1 stop6h 29m

Ottawa

Mon 9/8

5:55 am-4:24 pm

1 stop11h 29m

$283

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Fri 10/17

5:30 pm-12:40 am

1 stop30h 10m

Ottawa

Mon 10/20

7:50 am-4:43 pm

1 stop9h 53m

$297

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Sun 10/12

5:30 pm-6:45 am

1 stop12h 15m

Ottawa

Sat 10/18

6:00 am-4:43 pm

1 stop11h 43m

$307

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Sat 10/11

5:30 pm-2:56 pm

1 stop20h 26m

Ottawa

Sun 10/19

6:00 am-4:43 pm

1 stop11h 43m

$309

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Mon 9/15

5:30 pm-12:40 am

1 stop30h 10m

Ottawa

Fri 9/19

5:15 pm-12:39 pm

1 stop20h 24m

$311

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Sat 9/20

9:35 am-6:09 pm

1 stop7h 34m

Ottawa

Sun 9/28

4:25 pm-7:23 am

1 stop15h 58m

$317

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Sun 9/21

9:35 am-12:22 am

1 stop13h 47m

Ottawa

Sun 9/28

1:15 pm-4:24 pm

1 stop4h 09m

$318

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Fri 9/12

5:30 pm-2:56 pm

1 stop20h 26m

Ottawa

Fri 9/19

5:15 pm-12:39 pm

1 stop20h 24m

$320

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Fri 10/10

5:30 pm-2:56 pm

1 stop20h 26m

Ottawa

Sun 10/12

7:50 am-4:43 pm

1 stop9h 53m

$320

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 38 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, January is the cheapest month in which you can book a flight from Chicago to Ottawa (average of $294). Flying from Chicago to Ottawa in September is currently the most expensive (average of $428). 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 August 14, 2025.

It’s typically best to fly out from Chicago to Ottawa in the morning. Doing so could potentially save you 22% on the flight price compared to flying in the afternoon, which is usually more expensive.

How much does it cost to fly round-trip from Chicago to Ottawa?

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 August 14, 2025.
Peruse reviews from past customers who have flown with Porter Airlines, United Airlines, and Air Canada from Chicago to Ottawa to help guide your decision. 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
332 reviews

Crew

8.7

Boarding

8.2

Food

7.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Porter Airlines
8.0
Very good
332 reviews
Porter Airlines
8.0
Very good
332 reviews

Crew

8.7

Boarding

8.2

Food

7.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
United Airlines
7.4
Good
8,916 reviews
Porter Airlines
8.0
Very good
332 reviews

Crew

8.7

Boarding

8.2

Food

7.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Air Canada
7.1
Good
9,949 reviews
Porter Airlines
8.0
Very good
332 reviews

Crew

8.7

Boarding

8.2

Food

7.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good 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?

    Ottawa (YOW), located 6.6 mi from the city center, is the airport you fly into when you book flights from Chicago to Ottawa. 3 airlines have flights to Ottawa from Chicago on a regular basis. Booking flights from Chicago to Ottawa should not be difficult; the airport handles an average of 10 inbound flights from Chicago per day.

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

    Flying on Air Canada is currently your cheapest option to Ottawa, with prices starting at $189. Additional round-trip tickets that might be worth considering are offered by Porter Airlines and United Airlines, with the lowest prices starting at $189 and $236, respectively. Air Canada is 61% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The top 3 most reliable airlines when flying from Chicago to Ottawa are GoJet (79%), ANA (78%) and Air Canada (77%).

  • What are the cheapest flights from Chicago to Ottawa?

    While on average a flight from Chicago to Ottawa is generally $485, our data shows the cheapest flight currently is $225. When looking at the most popular route, (Chicago O'Hare Intl - Ottawa), you can expect to pay $339 for that flight.

  • 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, January is the cheapest month in which you can book a flight from Chicago to Ottawa (average of $294). Flying from Chicago to Ottawa in September is currently the most expensive (average of $428). 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

Traveling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Petawawa

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Alternative routes for Chicago to Ottawa

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Pearson Intl flights
O'Hare Intl to Pierre Elliott Trudeau Intl flights
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Midway to Ottawa flights
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O'Hare Intl to Kingston flights
Bloomington to Ottawa flights
Evansville to Pearson Intl flights
Evansville to Pierre Elliott Trudeau Intl flights
Dubuque to Pearson Intl flights
Bloomington to Pierre Elliott Trudeau Intl flights

Top 3 airlines flying from Chicago to Ottawa

Discover the top 3 airlines that operate flights from Chicago to Ottawa. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$189Average$367FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$189Average$400FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$236Average$614FlexibilityNo cancel feeOn-time69%

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