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$346+ 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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — YOW
Jul 13 — Jul 201
Mon 7/13
Mon 7/20
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 June 13, 2026.

This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:00 am
ONT
-
YOW
1 stop11h 35m
United Airlines
Sat 10/2410:37 am
YOW
-
ONT
1 stop15h 12m
United Airlines
Deal found 6/9$778
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.
Mon 6/229:36 pm
ONT
-
YOW
3 stops23h 44m
Multiple Airlines
Mon 7/208:15 pm
YOW
-
ONT
2 stops24h 06m
Multiple Airlines
Deal found 6/12$796
This United Airlines deal was found by Cheapflights users on 6/13. 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.
Mon 6/296:10 am
ONT
-
YOW
1 stop7h 57m
United Airlines
Thu 7/25:20 pm
YOW
-
ONT
1 stop8h 31m
United Airlines
Deal found 6/13$816
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/101:50 pm
ONT
-
YOW
2 stops21h 09m
United Airlines
Fri 7/175:20 pm
YOW
-
ONT
1 stop8h 31m
United Airlines
Deal found 6/12$822
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/265:00 am
ONT
-
YOW
2 stops15h 54m
United Airlines
Thu 7/2310:44 am
YOW
-
ONT
1 stop15h 07m
United Airlines
Deal found 6/12$826
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/157:00 am
ONT
-
YOW
1 stop11h 35m
United Airlines
Fri 8/216:00 am
YOW
-
ONT
3 stops19h 35m
United Airlines
Deal found 6/11$827
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 6/266:39 pm
ONT
-
YOW
2 stops16h 20m
United Airlines
Tue 6/3010:44 am
YOW
-
ONT
2 stops14h 53m
United Airlines
Deal found 6/10$832
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:00 am
ONT
-
YOW
1 stop11h 35m
United Airlines
Mon 10/510:37 am
YOW
-
ONT
1 stop15h 12m
United Airlines
Deal found 6/9$836
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/189:36 pm
ONT
-
YOW
2 stops24h 14m
Multiple Airlines
Sun 6/216:35 pm
YOW
-
ONT
3 stops31h 06m
Multiple Airlines
Deal found 6/9$856

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 June 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$778
(United Airlines)

One-way from

$346
(Kiwi.com)

Popular in

December

Cheapest in

June

Average price

$399
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. 7% potential increase in price ($41 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 13, 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

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Wed 10/21

7:00 am-9:35 pm

1 stop11h 35m

Ottawa

Sat 10/24

10:37 am-10:49 pm

1 stop15h 12m

$778
Quickest round-trip

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Wed 8/12

7:00 am-5:16 pm

1 stop7h 16m

Ottawa

Mon 8/24

5:20 pm-10:35 pm

1 stop8h 15m

$816

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Mon 8/31

7:00 am-9:35 pm

1 stop11h 35m

Ottawa

Wed 9/2

5:20 pm-10:35 pm

1 stop8h 15m

$816

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Fri 7/10

1:50 pm-1:59 pm

2 stops21h 09m

Ottawa

Fri 7/17

5:20 pm-10:51 pm

1 stop8h 31m

$822

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Thu 6/25

5:45 am-9:35 pm

2 stops12h 50m

Ottawa

Sun 6/28

5:20 pm-10:51 pm

1 stop8h 31m

$826

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Sat 8/15

7:00 am-9:35 pm

1 stop11h 35m

Ottawa

Fri 8/21

6:00 am-10:35 pm

3 stops19h 35m

$827
Cheapest one-way

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Sun 9/6

1:18 pm-1:59 pm

2 stops21h 41m

$365

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Thu 8/6

6:10 am-9:35 pm

1 stop12h 25m

$370

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Tue 7/21

6:10 am-9:35 pm

1 stop12h 25m

$379
Quickest one-way

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Wed 7/8

6:10 am-5:07 pm

1 stop7h 57m

$379

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 16 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.

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 11h 35m. United Airlines provides one of the quickest options available for as low as $778. 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.

See more FAQs

Traveling to a place near Ottawa?

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

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