Find flights
When to book
FAQs

Cheap flights from Belfast to Ontario from £497

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — ONT
18 May — 25 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Belfast to Ontario
Explore the most affordable flight options available from Belfast to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 April 2026.

Wed 7/1010:05
BHD
-
ONT
2 stops21h 01m
British Airways
Sun 11/1023:59
ONT
-
BHD
2 stops28h 56m
British Airways
Deal found 12/4£664
Wed 14/1006:30
BHD
-
ONT
2 stops22h 38m
British Airways
Sun 18/1023:59
ONT
-
BHD
2 stops34h 46m
British Airways
Deal found 12/4£724
Fri 17/412:00
BHD
-
ONT
2 stops17h 59m
British Airways
Fri 24/416:52
ONT
-
BHD
2 stops17h 18m
British Airways
Deal found 12/4£2,252

Find flight deals from Belfast to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Belfast (BF1) to Ontario (ONT). 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 18 April 2026.

Round-trip from

£664

One-way from

£497

Popular in

December

Cheapest in

June

Average price

£747
British Airways
  • British Airways
  • 7/10-11/10
  • 4 total stops
  • 49h 57m total
  • Belfast to Ontario
Search Deals
British Airways
  • British Airways
  • 4/9
  • 2 total stops
  • 19h 45m total
  • Belfast to Ontario
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£96 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£27 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast to Ontario 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 858,174 searches. Data last updated 18 April 2026.
Use the filters below to find and compare flights from Belfast to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Wed 7/10

10:05-23:06

2 stops21h 01m

Ontario

Sun 11/10

23:59-12:55

2 stops28h 56m

£664
Cheapest one-way

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Fri 4/9

06:30-18:15

2 stops19h 45m

£497

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Thu 9/7

14:35-19:59

2 stops37h 24m

£618

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Thu 2/7

09:35-22:33

2 stops20h 58m

£621

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Thu 16/7

06:30-22:33

2 stops24h 03m

£861

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Thu 20/8

09:35-21:12

2 stops19h 37m

£861
Fastest single journey

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Tue 1/9

13:45-23:24

2 stops17h 39m

£1,180

Flights are sorted by cheapest return flights first.

Deals found on 16/4

Sorted by cheapest first

Best time to book a flight from Belfast to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Belfast with our price prediction graph.
Estimated return 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 Belfast to Ontario
No data available for this route at this time. Please check back soon.

Related info for your journey

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

  • What airport do you fly into for flights to Ontario from Belfast?

    For a flight from Belfast to Ontario, you will be flying into Ontario. Ontario (ONT) is just 3.1 mi from the center of the city. Ontario is the only Ontario airport and it handles 0 inbound flights from Belfast per day. 0 airlines have flights to Ontario from Belfast on a regular basis.

  • How long is the flight from Belfast to Ontario?

    For as low as £664, British Airways can have you in Ontario from Belfast in 21h 01m. The distance between Belfast and Ontario is about 5095 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Belfast to Ontario 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Belfast to Ontario?

Cheapflights helps you search for flights from Belfast to Ontario via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Belfast to Ontario?

Cheapflights simply makes it quick and affordable to book flights from Belfast to Ontario by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Belfast to Ontario with no change fees?

Yes, we can. To see specific flights from Belfast to Ontario with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Belfast to Ontario become cheaper?

Of course! You can now track prices for flights from Belfast to Ontario and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.