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Cheap flights from Belfast to Ontario from £618

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — ONT
7 Jul — 14 Jul1
1 adult

Cheap 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 2 July 2025.

Round-trip from

£1,993

One-way from

£618

Popular in

August

Cheapest in

March

Average price

£566
Virgin Atlantic
  • Virgin Atlantic
  • 23/7-31/7
  • 4 total stops
  • 43h 53m total
  • Belfast to Ontario
British Airways
  • British Airways
  • 1/9
  • 2 total stops
  • 17h 55m total
  • Belfast to Ontario
Highest demand for flights based on searches. 11% potential increase in price (£58 potential increase over avg. return price).
Cheapest flight prices on average. 6% potential price decrease (£29 potential savings vs. average return price).
Average for round-trip flights in July 2025

Find flight deals from Belfast to Ontario

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 2 July 2025.

Wed 23/706:30BHD - ONT
2 stops25h 12mVirgin Atlantic
Thu 31/714:14ONT - BHD
2 stops18h 41mVirgin Atlantic
Deal found 1/7£1,993
Wed 2/706:30BHD - ONT
2 stops17h 58mKLM
Wed 9/717:09ONT - BHD
2 stops15h 46mKLM
Deal found 1/7£8,916

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 2 July 2025.
Use the filters below to find and compare flights from Belfast to Ontario that are best for you.

Fly from

Belfast

Fly to

Ontario

Route

Depart

Return

Price

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Wed 23/7

06:30-23:42

2 stops25h 12m

Ontario

Thu 31/7

14:14-16:55

2 stops18h 41m

£1,993

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Mon 1/9

12:15-22:10

2 stops17h 55m

£618

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Mon 8/9

06:30-17:11

2 stops18h 41m

£1,134

Flights are sorted by cheapest return flights first.

Deals found on 29/6

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

What is the cheapest month to book a flight from Belfast to Ontario?

Currently, March is the cheapest month in which you can book a flight from Belfast to Ontario (average of £516). Flying from Belfast to Ontario in August is currently the most expensive (average of £827). 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.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated 2 July 2025.
Check out reviews from past customers who have flown with KLM, Virgin Atlantic, andBritish Airways from Belfast to Ontario to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

7.8

Comfort

7.7

Crew

8.4

Food

7.2

Entertainment

7.1

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Overall

7.8

Comfort

7.7

Crew

8.4

Food

7.2

Entertainment

7.1

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Overall

7.8

Comfort

7.7

Crew

8.4

Food

7.2

Entertainment

7.1

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Overall

7.8

Comfort

7.7

Crew

8.4

Food

7.2

Entertainment

7.1

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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.

  • 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.

  • What is the cheapest month to book a flight from Belfast to Ontario?

    Currently, March is the cheapest month in which you can book a flight from Belfast to Ontario (average of £516). Flying from Belfast to Ontario in August is currently the most expensive (average of £827). 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

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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.

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