HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ottawa

$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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — YOW
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Chicago to Ottawa with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 June 12, 2025.

Round-trip from

$255
(FlightHub)

One-way from

$115
(FlightHub)

Popular in

November

Cheapest in

May

Average price

$474

Good round-trip deal

$279 or less

Good one-way deal

$283 or less
From Chicago (CHI) to Ottawa
Search Deals
One-way flight from Chicago (CHI) to Ottawa
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($33 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals
Price to beat on a round-trip flight from Chicago (CHI) to Ottawa.
Search Deals
Price to beat on a one-way flight from Chicago (CHI) to Ottawa.
Search Deals

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 June 12, 2025.

This FlightHub deal was found by Cheapflights users on 6/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/249:40 amMDW - YOW
1 stop8h 13mPorter Airlines
Tue 7/299:35 amYOW - MDW
1 stop7h 49mPorter Airlines
Deal found 6/12$255
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Mon 8/255:30 pmORD - YOW
1 stop11h 28mMultiple Airlines
Tue 8/264:10 pmYOW - ORD
1 stop8h 00mMultiple Airlines
Deal found 6/10$381
This Flightnetwork deal was found by Cheapflights users on 6/11. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/268:40 amORD - YOW
1 stop4h 04mAir Canada
Sat 8/28:35 amYOW - ORD
1 stop5h 38mAir Canada
Deal found 6/11$407
This Mytrip deal was found by Cheapflights users on 6/12. 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.
Sun 7/279:40 amMDW - YOW
1 stop8h 13mMultiple Airlines
Sun 8/38:35 amYOW - MDW
1 stop25h 10mMultiple Airlines
Deal found 6/12$408
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Fri 7/256:15 pmORD - YOW
Nonstop2h 20mUnited Airlines
Fri 8/15:25 pmYOW - ORD
Nonstop2h 28mUnited Airlines
Deal found 6/10$467
This oojo deal was found by Cheapflights users on 6/11. 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.
Thu 8/145:30 pmORD - YOW
1 stop12h 15mWestJet
Sun 8/176:00 amYOW - ORD
1 stop11h 44mWestJet
Deal found 6/11$480
This Delta deal was found by Cheapflights users on 6/10. 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.
Tue 7/811:05 amORD - YOW
2 stops12h 17mDelta
Sat 7/125:55 amYOW - ORD
2 stops7h 55mDelta
Deal found 6/10$743
This Delta deal was found by Cheapflights users on 6/10. 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.
Tue 7/86:00 amMDW - YOW
2 stops17h 22mDelta
Sat 7/125:55 amYOW - MDW
2 stops7h 34mDelta
Deal found 6/10$743
This oojo deal was found by Cheapflights users on 6/9. 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 10/171:05 pmMDW - YOW
2 stops15h 18mWestJet
Mon 10/206:00 amYOW - MDW
2 stops16h 44mWestJet
Deal found 6/9$1,058

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 June 12, 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 7/24

9:40 am-6:53 pm

1 stop8h 13m

Ottawa

Tue 7/29

9:35 am-4:24 pm

1 stop7h 49m

$255

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Mon 8/25

5:30 pm-5:58 am

1 stop11h 28m

Ottawa

Tue 8/26

4:10 pm-11:10 pm

1 stop8h 00m

$381

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Sat 7/26

8:40 am-1:44 pm

1 stop4h 04m

Ottawa

Sat 8/2

8:35 am-1:13 pm

1 stop5h 38m

$407

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Sun 7/27

9:40 am-6:53 pm

1 stop8h 13m

Ottawa

Sun 8/3

8:35 am-8:45 am

1 stop25h 10m

$408

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Fri 7/25

6:15 pm-9:35 pm

Nonstop2h 20m

Ottawa

Fri 8/1

5:25 pm-6:53 pm

Nonstop2h 28m

$467

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 8/14

5:30 pm-6:45 am

1 stop12h 15m

Ottawa

Sun 8/17

6:00 am-4:44 pm

1 stop11h 44m

$480

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Tue 7/8

11:05 am-12:22 am

2 stops12h 17m

Ottawa

Sat 7/12

5:55 am-12:50 pm

2 stops7h 55m

$743

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Tue 7/8

6:00 am-12:22 am

2 stops17h 22m

Ottawa

Sat 7/12

5:55 am-12:29 pm

2 stops7h 34m

$743

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Fri 10/17

1:05 pm-5:23 am

2 stops15h 18m

Ottawa

Mon 10/20

6:00 am-9:44 pm

2 stops16h 44m

$1,058

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Tue 8/12

9:40 am-5:03 pm

1 stop6h 23m

$115

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 16 results
1
2

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 June 12, 2025.

It’s typically best to fly out from Chicago to Ottawa in the morning. Doing so could potentially save you 25% on the flight price compared to flying in the afternoon, which is usually more expensive.

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 June 12, 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 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 June 12, 2025.
Read through reviews of airlines operating flights from Chicago to Ottawa, such as Porter Airlines, Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
288 reviews

Entertainment

7.0

Crew

8.7

Overall

8.0

Comfort

8.1

Boarding

8.2

Food

7.6

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

Entertainment

7.0

Crew

8.7

Overall

8.0

Comfort

8.1

Boarding

8.2

Food

7.6

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

Entertainment

7.0

Crew

8.7

Overall

8.0

Comfort

8.1

Boarding

8.2

Food

7.6

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

Entertainment

7.0

Crew

8.7

Overall

8.0

Comfort

8.1

Boarding

8.2

Food

7.6

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

Entertainment

7.0

Crew

8.7

Overall

8.0

Comfort

8.1

Boarding

8.2

Food

7.6

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

Entertainment

7.0

Crew

8.7

Overall

8.0

Comfort

8.1

Boarding

8.2

Food

7.6

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?

    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 12 inbound flights from Chicago per day.

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

    Flying on Porter Airlines is currently your cheapest option to Ottawa, with prices starting at $255. Additional round-trip tickets that might be worth considering are offered by Air Canada and United Airlines, with the lowest prices starting at $407 and $467, respectively. Porter Airlines is 47% 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 $115. However, be on the lookout for offers from WestJet and United Airlines, 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 GoJet (92%), ANA (88%) and Air Canada (87%).

  • What are the cheapest flights from Chicago to Ottawa?

    While on average a flight from Chicago to Ottawa is generally $423, our data shows the cheapest flight currently is $181. When looking at the most popular route, (Chicago O'Hare Intl - Ottawa), you can expect to pay $381 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 Chicago?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 Pierre Elliott Trudeau Intl flights
O'Hare Intl to Pearson Intl flights
Midway to Toronto Island flights
O'Hare Intl to Toronto Island flights
Midway to Pearson Intl flights
Midway to Pierre Elliott Trudeau Intl flights
St. Louis to Pearson Intl flights
St. Louis to Pierre Elliott Trudeau Intl flights
O'Hare Intl to Ottawa flights
Midway to Ottawa flights
O'Hare Intl to Hamilton flights
O'Hare Intl to London flights
St. Louis to Ottawa flights
Evansville to Pearson Intl flights
Moline to Pearson Intl flights
Peoria to Pierre Elliott Trudeau Intl flights
O'Hare Intl to Thunder Bay flights
Midway to Thunder Bay flights
Evansville to Pierre Elliott Trudeau Intl flights
Champaign to Pearson Intl flights
O'Hare Intl to Kingston flights
Bloomington to Ottawa flights
Dubuque to Pearson Intl flights
Springfield 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$231Average$368FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$236Average$639FlexibilityNo cancel feeOn-time69%
Porter AirlinesCheapest$250Average$430FlexibilityNo cancel feeOn-time52%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.