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$170+ 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 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — YOW
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap 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 September 11, 2025.

Round-trip from

$681
(United Airlines)

One-way from

$170
(Trip.com)

Popular in

December

Cheapest in

May

Average price

$381
From Ontario to Ottawa
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One-way flight from Ontario to Ottawa
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Highest demand for flights based on searches. 25% potential increase in price ($130 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/10. 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.
Sat 10/255:05 amONT - YOW
2 stops14h 00mUnited Airlines
Sat 11/16:20 amYOW - ONT
2 stops14h 14mUnited Airlines
Deal found 9/10$681
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Tue 10/74:15 pmONT - YOW
2 stops14h 43mUnited Airlines
Tue 10/145:50 pmYOW - ONT
2 stops22h 01mUnited Airlines
Deal found 9/9$699
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 10/296:38 pmONT - YOW
2 stops19h 34mUnited Airlines
Mon 11/35:15 amYOW - ONT
2 stops15h 19mUnited Airlines
Deal found 9/10$786
This Expedia deal was found by Cheapflights users on 9/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/257:10 amONT - YOW
3 stops14h 11mMultiple Airlines
Sat 11/19:25 amYOW - ONT
2 stops17h 31mMultiple Airlines
Deal found 9/10$796
This Mytrip deal was found by Cheapflights users on 9/9. 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.
Tue 10/77:35 amONT - YOW
3 stops26h 28mMultiple Airlines
Tue 10/145:55 amYOW - ONT
3 stops19h 46mMultiple Airlines
Deal found 9/9$823
This Mytrip deal was found by Cheapflights users on 9/9. 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.
Tue 10/77:35 amONT - YOW
2 stops20h 10mWestJet
Tue 10/145:55 amYOW - ONT
3 stops19h 46mWestJet
Deal found 9/9$844
This United Airlines deal was found by Cheapflights users on 9/10. 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 9/304:15 pmONT - YOW
2 stops18h 49mUnited Airlines
Sun 10/56:33 amYOW - ONT
2 stops13h 50mUnited Airlines
Deal found 9/10$862
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 10/297:00 amONT - YOW
1 stop7h 12mUnited Airlines
Tue 11/411:10 amYOW - ONT
1 stop10h 26mUnited Airlines
Deal found 9/10$879

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 September 11, 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

Tue 10/7

4:15 pm-9:58 am

2 stops14h 43m

Ottawa

Tue 10/14

5:50 pm-12:51 pm

2 stops22h 01m

$699

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Wed 10/29

6:38 pm-5:12 pm

2 stops19h 34m

Ottawa

Mon 11/3

5:15 am-5:34 pm

2 stops15h 19m

$786

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Sun 1/25

6:55 pm-2:44 pm

2 stops16h 49m

Ottawa

Thu 1/29

8:50 am-6:17 pm

2 stops12h 27m

$791

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Sat 10/25

7:10 am-12:21 am

3 stops14h 11m

Ottawa

Sat 11/1

9:25 am-11:56 pm

2 stops17h 31m

$796

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Thu 10/30

7:00 am-5:12 pm

1 stop7h 12m

Ottawa

Mon 11/3

11:10 am-6:36 pm

1 stop10h 26m

$879

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Sun 1/25

7:00 am-9:18 pm

1 stop11h 18m

Ottawa

Thu 1/29

5:11 pm-10:26 pm

1 stop8h 15m

$879

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Sat 10/25

7:02 am-5:06 pm

1 stop7h 04m

Ottawa

Sat 11/1

5:14 pm-10:31 pm

1 stop8h 17m

$879

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Thu 10/30

5:05 am-9:56 pm

2 stops13h 51m

Ottawa

Tue 11/4

11:10 am-6:36 pm

1 stop10h 26m

$888

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Thu 9/25

9:16 am-12:22 am

2 stops12h 06m

$183

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Thu 1/8

3:26 pm-12:40 am

2 stops30h 14m

$215

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 17 results
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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, January is the cheapest month in which you can book a flight from Ontario to Ottawa (average of $294). Flying from Ontario to Ottawa in September is currently the most expensive (average of $419). 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 14h 43m. United Airlines provides one of the quickest options available for as low as $699. 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, January is the cheapest month in which you can book a flight from Ontario to Ottawa (average of $294). Flying from Ontario to Ottawa in September is currently the most expensive (average of $419). 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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