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$193+ 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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — YOW
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
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 March 10, 2026.

This United Airlines deal was found by Cheapflights users on 3/5. 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 4/27:00 am
ONT
-
YOW
1 stop7h 07m
United Airlines
Thu 4/95:25 pm
YOW
-
ONT
1 stop8h 06m
United Airlines
Deal found 3/5$626
This United Airlines deal was found by Cheapflights users on 3/5. 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 4/297:00 am
ONT
-
YOW
1 stop11h 35m
United Airlines
Sun 5/36:25 am
YOW
-
ONT
2 stops18h 33m
United Airlines
Deal found 3/5$647
This United Airlines deal was found by Cheapflights users on 3/5. 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 5/87:00 am
ONT
-
YOW
1 stop11h 35m
United Airlines
Sun 5/2410:44 am
YOW
-
ONT
1 stop15h 02m
United Airlines
Deal found 3/5$648
This United Airlines deal was found by Cheapflights users on 3/5. 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 5/95:00 am
ONT
-
YOW
2 stops13h 35m
United Airlines
Wed 5/206:25 am
YOW
-
ONT
2 stops14h 27m
United Airlines
Deal found 3/5$663
This United Airlines deal was found by Cheapflights users on 3/5. 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 3/2711:59 pm
ONT
-
YOW
1 stop14h 13m
United Airlines
Fri 4/35:25 pm
YOW
-
ONT
1 stop8h 06m
United Airlines
Deal found 3/5$664
This United Airlines deal was found by Cheapflights users on 3/5. 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 5/207:00 am
ONT
-
YOW
1 stop11h 35m
United Airlines
Wed 5/275:20 pm
YOW
-
ONT
1 stop8h 26m
United Airlines
Deal found 3/5$675

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 March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$626
(United Airlines)

One-way from

$193
(Kiwi.com)
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

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 March 10, 2026.
Use the filters below to find and compare flights from Ontario to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Thu 4/2

7:00 am-5:07 pm

1 stop7h 07m

Ottawa

Thu 4/9

5:25 pm-10:31 pm

1 stop8h 06m

$626

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Wed 4/29

7:00 am-9:35 pm

1 stop11h 35m

Ottawa

Sun 5/3

5:25 pm-10:35 pm

1 stop8h 10m

$637

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Fri 5/8

7:00 am-9:35 pm

1 stop11h 35m

Ottawa

Mon 5/25

10:44 am-10:46 pm

1 stop15h 02m

$648

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Sun 5/10

7:00 am-9:35 pm

1 stop11h 35m

Ottawa

Thu 5/21

6:25 am-8:42 pm

2 stops17h 17m

$657

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Fri 3/27

11:59 pm-5:12 pm

1 stop14h 13m

Ottawa

Fri 4/3

5:25 pm-10:31 pm

1 stop8h 06m

$664

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Sat 6/6

6:30 am-9:35 pm

1 stop12h 05m

Ottawa

Fri 6/19

10:44 am-10:46 pm

1 stop15h 02m

$696
Cheapest one-way
Quickest one-way

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Wed 4/1

7:00 am-5:07 pm

1 stop7h 07m

$322

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Sun 4/5

5:10 am-10:05 pm

2 stops13h 55m

$333

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Sat 7/25

6:30 am-9:35 pm

1 stop12h 05m

$343

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Sat 4/4

7:00 am-5:07 pm

1 stop7h 07m

$364

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 14 resultsSorted by cheapest first
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 $281). 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 07m. United Airlines provides one of the quickest options available for as low as $626. 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 $281). 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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