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Cheap flights from Belfast Intl Airport to Ontario from £411

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — YYZ
19 Jul — 26 Jul1
1 adult

Cheap flight deals from Belfast Intl to Ontario

Keep the following information in mind while searching for Belfast Intl to Ontario flight deals. Data was last updated 14 July 2025.

Round-trip from

£411

Popular in

August

Cheapest in

May

Average price

£632
5/9-9/9
  • 5/9-9/9
  • 2 total stops
  • 33h 15m total
  • Belfast to Ontario
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£68 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
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Find flight deals from Belfast Intl to Ontario

Cheapest flights from Belfast Intl to Ontario
Explore the most affordable flight options available from Belfast Intl to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 July 2025.

Fri 5/906:05BFS - YUL
1 stop13h 10mMultiple Airlines
Tue 9/922:05YUL - BFS
1 stop20h 05mMultiple Airlines
Deal found 14/7£411
Thu 28/806:10BFS - YYZ
1 stop11h 55mMultiple Airlines
Thu 4/918:00YYZ - BFS
2 stops21h 35mMultiple Airlines
Deal found 14/7£437
Thu 28/807:30BFS - YTZ
2 stops15h 51mMultiple Airlines
Thu 4/908:50YTZ - BFS
2 stops24h 15mMultiple Airlines
Deal found 14/7£487

Cheapflights Fare Finder

Customise your flight search to find flights from Belfast Intl 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 14 July 2025.
Use the filters below to find and compare flights from Belfast Intl Airport to Ontario that are best for you.

Fly from

Belfast Intl

Fly to

Ontario

Route

Depart

Return

Price

BelfastMontreal

BFS - YUL

BFSYUL

Belfast Intl

Fri 5/9

06:05-14:15

1 stop13h 10m

Montreal Pierre Elliott Trudeau Intl

Tue 9/9

22:05-23:10

1 stop20h 05m

£411

BelfastToronto

BFS - YYZ

BFSYYZ

Belfast Intl

Thu 28/8

06:10-13:05

1 stop11h 55m

Toronto Pearson Intl

Thu 4/9

18:00-20:35

2 stops21h 35m

£437

BelfastToronto

BFS - YTZ

BFSYTZ

Belfast Intl

Thu 28/8

07:30-18:21

2 stops15h 51m

Toronto Island

Thu 4/9

08:50-14:05

2 stops24h 15m

£487

Flights are sorted by cheapest return flights first.

Deals found on 14/7

Best time to book a flight from Belfast Intl to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Belfast Intl 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 Intl Airport to Ontario

What is the cheapest time of day to fly from BFS to ON?

Find hourly flight availability from Belfast Intl to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 July 2025.

When flying from Belfast Intl Airport to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

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

  • What are the most popular routes from Belfast Intl Airport to Region of Ontario?

    The most popular route from Belfast Intl Airport to Region of Ontario is Belfast Intl - Toronto Pearson Intl. You may also consider Belfast Intl - Montreal Pierre Elliott Trudeau Intl or Belfast Intl - Toronto Island.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Belfast Intl 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.

  • What is the cheapest month to book a flight from Belfast Intl Airport to Region of Ontario?

    Currently, January is the cheapest month in which you can book a flight from Belfast Intl Airport to Region of Ontario (average of £490). Flying from Belfast Intl Airport to Region of Ontario in July is currently the most expensive (average of £708). 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Belfast Intl to Ontario

Discover the top airline that operate flights from Belfast Intl to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 14 July 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£419Average£577FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Belfast Intl to Ontario.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Belfast Intl to Ontario flexibly with Cheapflights today.

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

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