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$164+ 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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — YOW
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
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 January 27, 2026.

This United Airlines deal was found by Cheapflights users on 1/26. 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 7/291:00 pm
ONT
-
YOW
2 stops17h 11m
United Airlines
Wed 8/55:25 pm
YOW
-
ONT
1 stop8h 01m
United Airlines
Deal found 1/26$739
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Thu 3/1211:59 pm
ONT
-
YOW
1 stop7h 27m
United Airlines
Thu 3/195:11 pm
YOW
-
ONT
1 stop8h 07m
United Airlines
Deal found 1/26$740
This United Airlines deal was found by Cheapflights users on 1/27. 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 3/1511:59 pm
ONT
-
YOW
1 stop7h 27m
United Airlines
Thu 3/195:11 pm
YOW
-
ONT
1 stop8h 07m
United Airlines
Deal found 1/27$779
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Thu 7/301:00 pm
ONT
-
YOW
2 stops17h 11m
United Airlines
Wed 8/55:25 pm
YOW
-
ONT
1 stop8h 01m
United Airlines
Deal found 1/26$782
This United Airlines deal was found by Cheapflights users on 1/26. 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 7/291:00 pm
ONT
-
YOW
2 stops17h 11m
United Airlines
Tue 8/46:52 am
YOW
-
ONT
2 stops17h 29m
United Airlines
Deal found 1/26$830
This United Airlines deal was found by Cheapflights users on 1/25. 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.
Sat 4/47:00 am
ONT
-
YOW
1 stop7h 07m
United Airlines
Sat 4/115:20 pm
YOW
-
ONT
1 stop8h 06m
United Airlines
Deal found 1/25$847
This United Airlines deal was found by Cheapflights users on 1/25. 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.
Thu 7/306:30 pm
ONT
-
YOW
2 stops11h 41m
United Airlines
Sun 8/1610:35 am
YOW
-
ONT
1 stop14h 51m
United Airlines
Deal found 1/25$857
This United Airlines deal was found by Cheapflights users on 1/26. 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 7/291:00 pm
ONT
-
YOW
2 stops17h 11m
United Airlines
Mon 8/35:25 pm
YOW
-
ONT
2 stops21h 55m
United Airlines
Deal found 1/26$862

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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$740
(United Airlines)

One-way from

$164
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$517
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. 26% potential increase in price ($140 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 27, 2026.
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 3/12

11:59 pm-10:26 am

1 stop7h 27m

Ottawa

Thu 3/19

5:11 pm-10:18 pm

1 stop8h 07m

$740

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Sun 3/15

11:59 pm-10:26 am

1 stop7h 27m

Ottawa

Thu 3/19

5:11 pm-10:18 pm

1 stop8h 07m

$779

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Sat 4/4

7:00 am-5:07 pm

1 stop7h 07m

Ottawa

Sat 4/11

5:20 pm-10:26 pm

1 stop8h 06m

$847

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Thu 2/5

6:00 am-9:18 pm

2 stops12h 18m

Ottawa

Sun 2/8

9:45 am-8:58 pm

2 stops14h 13m

$929

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Wed 2/4

6:00 am-9:18 pm

2 stops12h 18m

Ottawa

Mon 2/9

6:20 am-10:53 pm

2 stops19h 33m

$940

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Sat 1/31

6:00 am-9:18 pm

2 stops12h 18m

Ottawa

Mon 2/9

10:30 am-8:58 pm

2 stops13h 28m

$1,100

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Sat 1/31

6:00 am-9:18 pm

2 stops12h 18m

Ottawa

Tue 2/10

10:30 am-8:58 pm

2 stops13h 28m

$1,100

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Thu 3/12

2:06 pm-12:39 am

3 stops31h 33m

$164

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Thu 3/12

11:59 pm-10:26 am

1 stop7h 27m

$327

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Tue 3/31

7:00 am-5:07 pm

1 stop7h 07m

$343

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 14 results
1
2
  • Most accurate provider: When it comes to deals on Ontario-Ottawa flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Ottawa flight deals on Cheapflights vs. FlightHub >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 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 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 January is currently the most expensive (average of $236). 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 7h 27m. United Airlines provides one of the quickest options available for as low as $740. 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 January is currently the most expensive (average of $236). 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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