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$129+ 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 4/11. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — YOW
mar. 13 — mar. 201
jue. 3/13
jue. 3/20
1 adult, Economy
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The best prices from Chicago to Ottawa are usually found in July or January, booked 58 days in advance, depart on a Friday or Wednesday and return on a Saturday

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 marzo 8, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$133
(123 Milhas)

One-way from

$129
(oojo)

Popular in

November

Cheapest in

July

Average price

$552

Good round-trip deal

$521 or less

Good one-way deal

$252 or less
Provider with most accurate pricing for Chicago (CHI)-Ottawa flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Ottawa flights.
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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. 4% potential increase in price ($20 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 March 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 marzo 8, 2025.

This 123 Milhas deal was found by Cheapflights users on 3/7. 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 123 Milhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/258:25 pmORD - YOW
1 stop4h 09mAir Canada
jue. 5/19:20 amYOW - ORD
1 stop4h 35mAir Canada
Deal found 3/7$136
This Trip.com deal was found by Cheapflights users on 3/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/95:35 pmMDW - YOW
1 stop3h 54mPorter Airlines
sáb. 4/199:20 amYOW - MDW
1 stop3h 40mPorter Airlines
Deal found 3/7$267
This Mytrip deal was found by Cheapflights users on 3/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/12:45 pmORD - YOW
1 stop8h 32mMultiple Airlines
lun. 4/79:25 amYOW - ORD
1 stop25h 34mMultiple Airlines
Deal found 3/7$287
This Kiwi.com deal was found by Cheapflights users on 3/7. 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.
vie. 4/115:35 pmMDW - YOW
1 stop3h 54mMultiple Airlines
dom. 4/137:00 amYOW - MDW
1 stop4h 20mMultiple Airlines
Deal found 3/7$383
This Justfly.com deal was found by Cheapflights users on 3/6. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 6/151:40 pmORD - YOW
1 stop25h 40mWestJet
vie. 6/205:15 pmYOW - ORD
1 stop20h 24mWestJet
Deal found 3/6$507
This United Airlines deal was found by Cheapflights users on 3/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/1112:55 pmORD - YOW
1 stop8h 10mUnited Airlines
mar. 4/1510:37 amYOW - ORD
Nonstop2h 26mUnited Airlines
Deal found 3/7$561
This Delta deal was found by Cheapflights users on 3/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/208:55 amORD - YOW
2 stops14h 27mDelta
mié. 6/255:55 amYOW - ORD
2 stops13h 45mDelta
Deal found 3/6$863
This Delta deal was found by Cheapflights users on 3/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/189:20 amMDW - YOW
2 stops13h 49mDelta
sáb. 4/265:55 amYOW - MDW
2 stops13h 25mDelta
Deal found 3/7$957
This Justfly.com deal was found by Cheapflights users on 3/7. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/412:48 pmMDW - YOW
2 stops10h 21mWestJet
mar. 4/85:55 amYOW - MDW
2 stops28h 12mWestJet
Deal found 3/7$1,029

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 2,558,603 searches. Data last updated marzo 8, 2025.

Fly from

Chicago

Fly to

Ottawa

Route

Depart

Return

Price

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

vie. 4/25

8:25 pm-1:34 am

1 stop4h 09m

Ottawa

jue. 5/1

9:20 am-12:55 pm

1 stop4h 35m

$133

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

mié. 4/9

5:35 pm-10:29 pm

1 stop3h 54m

Ottawa

sáb. 4/19

9:20 am-12:00 pm

1 stop3h 40m

$267

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

mié. 4/9

11:54 am-3:19 pm

1 stop26h 25m

Ottawa

dom. 4/27

7:00 am-8:04 am

1 stop26h 04m

$290

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

vie. 4/11

5:35 pm-10:29 pm

1 stop3h 54m

Ottawa

dom. 4/13

7:00 am-10:20 am

1 stop4h 20m

$383

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

dom. 6/15

1:40 pm-4:20 pm

1 stop25h 40m

Ottawa

vie. 6/20

5:15 pm-12:39 pm

1 stop20h 24m

$507

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

jue. 4/10

6:19 pm-9:35 pm

Nonstop2h 16m

Ottawa

dom. 4/13

6:33 am-8:02 am

Nonstop2h 29m

$551

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

jue. 5/8

9:00 am-12:22 am

2 stops14h 22m

Ottawa

dom. 5/11

5:55 am-12:41 pm

2 stops7h 46m

$594

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

vie. 4/18

9:20 am-12:09 am

2 stops13h 49m

Ottawa

sáb. 4/26

5:55 am-6:20 pm

2 stops13h 25m

$957

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

vie. 4/4

12:48 pm-12:09 am

2 stops10h 21m

Ottawa

mar. 4/8

5:55 am-9:07 am

2 stops28h 12m

$1,029

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

vie. 4/11

11:15 am-6:34 pm

1 stop6h 19m

$129

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

Showing 1-10 of 17 results
1
2

Compare providers for flights from Chicago to Ottawa

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Ottawa in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago-Ottawa flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-Ottawa flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-Ottawa flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-Ottawa flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Ottawa flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 February 28, 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, 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 May is currently the most expensive (average of $474). 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 marzo 8, 2025.

It’s typically best to fly out from Chicago to Ottawa in the morning. Doing so could potentially save you 30% on the flight price compared to flying in the afternoon, which is usually more expensive.

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 2.0 - 3.7 inches per month. June is typically the wettest month, when rainfall can reach 3.7 in. February is typically the driest time to visit Ottawa when rainfall is around 2.0 in.

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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 F).

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 marzo 8, 2025.
Read through reviews of airlines operating flights from Chicago to Ottawa, such as Delta, Porter Airlines and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,024 reviews

Boarding

8.2

Comfort

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

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

Boarding

8.2

Comfort

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

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

Boarding

8.2

Comfort

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

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

Boarding

8.2

Comfort

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

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
2,786 reviews
Delta
8.0
Very good
8,024 reviews

Boarding

8.2

Comfort

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

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

Boarding

8.2

Comfort

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

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?

    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 $133. Additional round-trip tickets that might be worth considering are offered by Porter Airlines and United Airlines, with the lowest prices starting at $267 and $551, respectively. Air Canada is 73% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airline one-way is Porter Airlines, with whom users have recently found tickets for as low as $129. However, be on the lookout for offers from Air Canada and Delta, as they are both options that can get you from Chicago to Ottawa for a low price.

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

    The top 3 most reliable airlines when flying from Chicago to Ottawa are Air Canada (88%), Air New Zealand (88%) and Avianca (87%).

  • What are the cheapest flights from Chicago to Ottawa?

    While on average a flight from Chicago to Ottawa is generally $506, our data shows the cheapest flight currently is $170. When looking at the most popular route, (Chicago O'Hare Intl - Ottawa), you can expect to pay $379 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 May is currently the most expensive (average of $474). 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 Chicago?

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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.
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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 marzo 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$236Average$707FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$236Average$551FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$364Average$501FlexibilityNo cancel feeOn-time52%
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