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$371+ Cheap flights from Ontario (ONT) 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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — YOW
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Ontario to Ottawa

Cheapest flights from Ontario to Ottawa
Explore the most affordable flight options available from Ontario to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/10. 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.
Tue 12/305:05 amONT - YOW
2 stops9h 13mUnited Airlines
Thu 1/15:09 pmYOW - ONT
1 stop8h 16mUnited Airlines
Deal found 12/10$1,050
This United Airlines deal was found by Cheapflights users on 12/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2811:59 pmONT - YOW
1 stop14h 19mUnited Airlines
Mon 12/297:27 pmYOW - ONT
2 stops29h 25mUnited Airlines
Deal found 12/11$1,075
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Sun 12/2111:59 pmONT - YOW
1 stop14h 19mUnited Airlines
Thu 1/15:09 pmYOW - ONT
1 stop8h 16mUnited Airlines
Deal found 12/10$1,132
This United Airlines deal was found by Cheapflights users on 12/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2411:59 pmONT - YOW
1 stop14h 19mUnited Airlines
Sun 1/45:09 pmYOW - ONT
1 stop8h 16mUnited Airlines
Deal found 12/9$1,293
This United Airlines deal was found by Cheapflights users on 12/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2111:59 pmONT - YOW
1 stop14h 19mUnited Airlines
Sun 1/45:09 pmYOW - ONT
1 stop8h 16mUnited Airlines
Deal found 12/9$1,379
This American Airlines deal was found by Cheapflights users on 12/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/286:20 amONT - YOW
3 stops15h 21mAmerican Airlines
Mon 12/299:10 amYOW - ONT
3 stops17h 36mAmerican Airlines
Deal found 12/11$1,602
This United Airlines deal was found by Cheapflights users on 12/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2411:59 pmONT - YOW
1 stop14h 19mUnited Airlines
Mon 1/55:09 pmYOW - ONT
1 stop8h 16mUnited Airlines
Deal found 12/9$2,083

Find flight deals from Ontario to Ottawa

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) 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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$790
(Flightnetwork)

One-way from

$371
(United Airlines)

Popular in

December

Cheapest in

May

Average price

$749
Provider with most accurate pricing for Ontario-Ottawa flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Ottawa flights.
Search Deals
From Ontario to Ottawa
Search Deals
One-way flight from Ontario to Ottawa
Search Deals
Highest demand for flights based on searches. 35% potential increase in price ($230 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario 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 December 12, 2025.
Use the filters below to find and compare flights from Ontario to Ottawa that are best for you.

Fly from

Ontario

Fly to

Ottawa

Route

Depart

Return

Price

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Thu 1/15

5:05 am-9:18 pm

2 stops13h 13m

Ottawa

Sun 1/18

6:20 am-5:43 pm

2 stops14h 23m

$894

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Wed 12/24

12:42 am-8:25 am

3 stops28h 43m

Ottawa

Wed 12/31

7:00 am-10:52 pm

2 stops18h 52m

$1,012

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Thu 12/25

5:05 am-9:18 pm

2 stops13h 13m

Ottawa

Wed 12/31

10:20 am-9:07 pm

2 stops13h 47m

$1,046

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Tue 12/30

5:05 am-5:18 pm

2 stops9h 13m

Ottawa

Thu 1/1

5:09 pm-10:25 pm

1 stop8h 16m

$1,050

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Sun 12/28

11:59 pm-5:18 pm

1 stop14h 19m

Ottawa

Mon 12/29

7:27 pm-9:52 pm

2 stops29h 25m

$1,075

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Thu 12/25

2:42 pm-4:51 pm

3 stops23h 09m

Ottawa

Wed 12/31

9:10 am-9:38 am

3 stops27h 28m

$1,103

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Thu 12/25

11:59 pm-5:18 pm

1 stop14h 19m

Ottawa

Wed 12/31

9:45 am-9:07 pm

2 stops14h 22m

$1,104

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Sun 12/21

11:59 pm-5:18 pm

1 stop14h 19m

Ottawa

Thu 1/1

5:09 pm-10:25 pm

1 stop8h 16m

$1,132

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Mon 4/13

7:00 am-9:14 pm

1 stop11h 14m

Ottawa

Fri 4/17

10:35 am-10:26 pm

1 stop14h 51m

$1,581

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Thu 1/8

5:05 am-11:54 pm

2 stops15h 49m

$371

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 18 results
1
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Compare providers for flights from Ontario 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 Ontario to Ottawa in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 Ontario-Ottawa flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Ottawa flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Ontario-Ottawa flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Ottawa flights, Cheapflights users trust eDreams the most. eDreams 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 Ontario-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 Ontario to Ottawa

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

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

Currently, May is the cheapest month in which you can book a flight from Ontario to Ottawa (average of $106). Flying from Ontario to Ottawa in September is currently the most expensive (average of $224). 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.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Ottawa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ontario to Ottawa?

    A quick flight from Ontario to Ottawa can take about 13h 13m. United Airlines provides one of the quickest options available for as low as $894. Airlines will cover a distance of 2329 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario 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 Ontario to Ottawa?

    Currently, May is the cheapest month in which you can book a flight from Ontario to Ottawa (average of $106). Flying from Ontario to Ottawa in September is currently the most expensive (average of $224). 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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