How long is the flight from Region of Ontario to Northern Ireland?

For as low as £603, British Airways can have you in Northern Ireland from Region of Ontario in 12h 30m. The distance between Region of Ontario and Northern Ireland is about 2953 mi.

In terms of precipitation, rainfall in Northern Ireland ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Northern Ireland when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Northern Ireland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

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

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

Can I find deals for flights from Ontario to Northern Ireland that include hotel bookings?

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

How can I find direct flights from Ontario to Northern Ireland?

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

Can I find deals for business class flights from Ontario to Northern Ireland?

Yes. Cheapflights offers flight deals from Ontario to Northern Ireland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£144+ Cheap Flights from Ontario to Northern Ireland

Cheap flight deals from Ontario to Northern Ireland

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Ontario to Northern Ireland
Explore the most affordable flight options available from Ontario to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 August 2026.

Tue 15/921:55 -

1 stop13h 25m

Sun 20/922:10 -

1 stop19h 35m

Deal found 17/8£418

Thu 15/1021:35 -

2 stops42h 40m

Thu 22/1006:40 -

1 stop12h 30m

Deal found 15/8£432

Tue 15/921:55 -

1 stop14h 55m

Sun 20/907:00 -

2 stops30h 09m

Deal found 17/8£435

Tue 15/919:40 -

1 stop31h 00m

Mon 21/908:15 -

1 stop33h 25m

Deal found 18/8£438

Tue 15/919:40 -

1 stop13h 00m

Mon 21/908:45 -

1 stop32h 55m

Deal found 18/8£443

Sun 11/1022:15 -

1 stop28h 50m

Sun 25/1020:40 -

1 stop23h 20m

Deal found 17/8£450

Fri 2/1022:15 -

1 stop17h 35m

Fri 9/1007:00 -

2 stops30h 13m

Deal found 17/8£453

Sat 17/1021:35 -

2 stops18h 05m

Wed 21/1017:40 -

1 stop25h 30m

Deal found 17/8£457

Sat 3/1007:00 -

2 stops32h 40m

Sat 10/1006:20 -

2 stops30h 45m

Deal found 19/8£464

Tue 15/906:45 -

2 stops31h 55m

Sat 26/906:20 -

2 stops18h 12m

Deal found 17/8£465

Sat 10/1023:55 -

2 stops37h 30m

Mon 26/1017:30 -

1 stop26h 30m

Deal found 16/8£468

Tue 15/919:40 -

1 stop20h 25m

Tue 22/920:55 -

2 stops32h 30m

Deal found 18/8£472

Best flights from Ontario to Northern Ireland
Discover carefully curated flight deals from Ontario to Northern Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 20 August 2026.

Thu 15/1021:35 -

2 stops42h 40m

Thu 22/1006:40 -

1 stop12h 30m

Deal found 15/8£432

Fri 2/1022:00 -

1 stop12h 30m

Thu 8/1014:20 -

1 stop10h 55m

Deal found 18/8£603

Tue 15/919:40 -

1 stop31h 00m

Mon 21/908:15 -

1 stop33h 25m

Deal found 18/8£438

Tue 15/919:40 -

1 stop13h 00m

Mon 21/908:45 -

1 stop32h 55m

Deal found 18/8£443

Sun 11/1022:15 -

1 stop28h 50m

Sun 25/1020:40 -

1 stop23h 20m

Deal found 17/8£450

Sat 3/1007:00 -

2 stops32h 40m

Sat 10/1006:20 -

2 stops30h 45m

Deal found 19/8£464

Sat 3/1010:30 -

2 stops18h 35m

Fri 9/1012:00 -

2 stops26h 56m

Deal found 18/8£619

Sat 10/1023:55 -

2 stops37h 30m

Mon 26/1017:30 -

1 stop26h 30m

Deal found 16/8£468

Sat 17/1022:00 -

1 stop12h 05m

Wed 21/1011:35 -

1 stop13h 35m

Deal found 18/8£623

Tue 15/918:25 -

2 stops20h 15m

Tue 22/908:20 -

2 stops35h 35m

Deal found 18/8£477

Mon 28/922:00 -

1 stop9h 55m

Sun 11/1020:10 -

1 stop29h 05m

Deal found 18/8£672

Tue 15/921:55 -

2 stops20h 25m

Sun 20/920:45 -

3 stops26h 39m

Deal found 17/8£485

Wed 9/922:00 -

1 stop12h 40m

Thu 24/906:30 -

1 stop18h 45m

Deal found 15/8£681

Fri 2/1017:45 -

2 stops17h 45m

Sat 10/1020:15 -

1 stop23h 00m

Deal found 18/8£485

Thu 15/1010:00 -

2 stops28h 20m

Thu 22/1021:10 -

2 stops26h 45m

Deal found 15/8£486

Tue 6/1008:40 -

2 stops21h 05m

Tue 20/1013:45 -

2 stops15h 40m

Deal found 15/8£726

Tue 3/1121:35 -

1 stop17h 35m

Mon 9/1106:30 -

1 stop13h 30m

Deal found 16/8£486

Mon 7/922:00 -

1 stop9h 55m

Sun 13/906:30 -

2 stops32h 19m

Deal found 17/8£740

Mon 14/919:15 -

1 stop16h 00m

Sat 19/906:20 -

1 stop14h 20m

Deal found 18/8£487

Mon 14/919:15 -

1 stop12h 15m

Tue 22/908:20 -

1 stop12h 20m

Deal found 18/8£487

Wed 30/917:00 -

2 stops15h 35m

Thu 8/1014:20 -

2 stops15h 17m

Deal found 18/8£826

Mon 14/919:15 -

2 stops23h 05m

Sun 20/922:10 -

1 stop19h 35m

Deal found 18/8£490

Thu 15/1022:05 -

1 stop16h 15m

Thu 22/1021:10 -

1 stop22h 05m

Deal found 15/8£492

Thu 5/1121:35 -

1 stop29h 05m

Wed 18/1106:25 -

1 stop13h 35m

Deal found 18/8£494

Sun 11/1008:40 -

2 stops24h 55m

Thu 15/1020:35 -

2 stops28h 25m

Deal found 18/8£997

Sat 17/1015:40 -

2 stops17h 00m

Wed 21/1007:00 -

2 stops20h 00m

Deal found 17/8£501

Thu 3/911:00 -

2 stops23h 05m

Tue 8/920:15 -

1 stop21h 30m

Deal found 17/8£502

Mon 21/1210:20 -

2 stops24h 45m

Sat 2/109:20 -

2 stops37h 38m

Deal found 17/8£1,092

Mon 14/916:00 -

2 stops20h 30m

Wed 16/918:20 -

2 stops35h 05m

Deal found 15/8£1,096

Tue 6/1016:00 -

3 stops22h 50m

Tue 20/1017:10 -

3 stops36h 15m

Deal found 15/8£519

Find flight deals from Ontario to Northern Ireland

Round-trip from	£418
One-way from	£144

15/9-20/9
2 total stops
33h 00m total
Ontario to Northern Ireland

Search Deals

15/9
1 total stop
13h 25m total
Ontario to Northern Ireland

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

TorontoBelfast

YYZ Toronto Pearson Intl - BFS Belfast Intl

YYZBFS

Toronto Pearson Intl

Thu 15/10

21:35-21:15

2 stops42h 40m

Belfast Intl

Thu 22/10

06:40-14:10

1 stop12h 30m

£432

OttawaBelfast

YOW Ottawa - BFS Belfast Intl

YOWBFS

Ottawa

Tue 15/9

19:40-07:40

1 stop31h 00m

Belfast Intl

Mon 21/9

08:15-12:40

1 stop33h 25m

£438

OttawaBelfast

YOW Ottawa - BHD Belfast City

YOWBHD

Ottawa

Tue 15/9

19:40-13:40

1 stop13h 00m

Belfast City

Mon 21/9

08:45-12:40

1 stop32h 55m

£443

TorontoBelfast

YYZ Toronto Pearson Intl - BFS Belfast Intl

YYZBFS

Toronto Pearson Intl

Sun 11/10

22:15-08:05

1 stop28h 50m

Belfast Intl

Sun 25/10

20:40-16:00

1 stop23h 20m

£450

OttawaBelfast

YOW Ottawa - BFS Belfast Intl

YOWBFS

Ottawa

Sat 3/10

07:00-20:40

2 stops32h 40m

Belfast Intl

Sat 10/10

06:20-08:05

2 stops30h 45m

£464

TorontoBelfast

YYZ Toronto Pearson Intl - BFS Belfast Intl

YYZBFS

Toronto Pearson Intl

Sat 10/10

23:55-18:25

2 stops37h 30m

Belfast Intl

Mon 26/10

17:30-16:00

1 stop26h 30m

£468

OttawaBelfast

YOW Ottawa - BFS Belfast Intl

YOWBFS

Ottawa

Tue 15/9

18:25-19:40

2 stops20h 15m

Belfast Intl

Tue 22/9

08:20-14:55

2 stops35h 35m

£477

TorontoBelfast

YYZ Toronto Pearson Intl - BFS Belfast Intl

YYZBFS

Toronto Pearson Intl

Tue 15/9

21:55-23:20

2 stops20h 25m

Belfast Intl

Sun 20/9

20:45-18:24

3 stops26h 39m

£485

MontrealBelfast

YUL Montreal Pierre Elliott Trudeau Intl - BFS Belfast Intl

YULBFS

Montreal Pierre Elliott Trudeau Intl

Fri 2/10

17:45-16:30

2 stops17h 45m

Belfast Intl

Sat 10/10

20:15-14:15

1 stop23h 00m

£485

TorontoBelfast

YTZ Toronto Island - BFS Belfast Intl

YTZBFS

Toronto Island

Thu 15/10

10:00-19:20

2 stops28h 20m

Belfast Intl

Thu 22/10

21:10-18:55

2 stops26h 45m

£486

Flights are sorted by cheapest return flights first.

Deals found on 16/8

Showing 1-10 of 59 resultsSorted by cheapest first

...

Best time to book a flight from Ontario to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from Ontario with our price prediction graph.

YYZ-BFS

YYZ-BHD

YUL-BFS

YOW-BFS

YUL-BHD

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 Ontario to Northern Ireland

CAON-GBNIR

YYZ-BFS

YYZ-BHD

YUL-BFS

YOW-BFS

No data available for this route at this time. Please check back soon.

Related info for your journey

How long is the flight from Region of Ontario to Northern Ireland?
For as low as £603, British Airways can have you in Northern Ireland from Region of Ontario in 12h 30m. The distance between Region of Ontario and Northern Ireland is about 2953 mi.
Can I find deals for flights from Ontario to Northern Ireland that include hotel bookings?
Yes. In addition to deals on Ontario to Northern Ireland flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Ontario to Northern Ireland?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Northern Ireland.
Can I find deals for business class flights from Ontario to Northern Ireland?
Yes. Cheapflights offers flight deals from Ontario to Northern Ireland 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

Alternative routes

Complete your trip

Direct flights to United Kingdom

Flights by cabin class

Other flight options

Popular flights

Return Flight Options

Top destinations

Alternative routes for Ontario to Northern Ireland

Pearson Intl to Heathrow flights

Vancouver Intl to Heathrow flights

Pearson Intl to Gatwick flights

Pearson Intl to London City flights

Pearson Intl to Stansted flights

Pierre Elliott Trudeau Intl to Heathrow flights

Toronto Island to Heathrow flights

Pearson Intl to Luton flights

Vancouver Intl to Gatwick flights

Vancouver Intl to Stansted flights

Calgary to Heathrow flights

Pierre Elliott Trudeau Intl to Gatwick flights

Halifax to Heathrow flights

Pierre Elliott Trudeau Intl to Stansted flights

Abbotsford to Heathrow flights

Pearson Intl to Edinburgh flights

Ottawa to Heathrow flights

Calgary to Gatwick flights

Vancouver Intl to Luton flights

Calgary to London City flights

Pearson Intl to Glasgow Intl flights

Pearson Intl to Manchester flights

Calgary to Stansted flights

Halifax to Gatwick flights

Pierre Elliott Trudeau Intl to Edinburgh flights

Ottawa to Gatwick flights

Edmonton to Heathrow flights

Winnipeg to Heathrow flights

Edmonton to Gatwick flights

Winnipeg to Gatwick flights

Kelowna to Heathrow flights

Ottawa to Stansted flights

Fly with Cheapflights

How does Cheapflights help users find flights from Ontario to Northern Ireland?

Cheapflights makes it easy to find Ontario to Northern Ireland flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Ontario to Northern Ireland for you. Better yet — we are completely free to use.

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

Need flexible booking options for your flight to Northern Ireland from Ontario? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Not ready to book yet? You can track prices for flights from Ontario to Northern Ireland on Cheapflights with our Price Alert feature and get notified when better prices are available.

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.

Cheap flights from Ontario to Northern Ireland from £144

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ontario to Northern Ireland

Cheapest flights from Ontario to Northern IrelandExplore the most affordable flight options available from Ontario to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 August 2026.

Explore the most affordable flight options available from Ontario to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 August 2026.

Best flights from Ontario to Northern IrelandDiscover carefully curated flight deals from Ontario to Northern Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 20 August 2026.

Discover carefully curated flight deals from Ontario to Northern Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 20 August 2026.

Last-minute flights from Ontario to Northern IrelandDiscover last-minute flight deals from Ontario to Northern Ireland. Data last updated 20 August 2026 and is based on user searches.

Discover last-minute flight deals from Ontario to Northern Ireland. Data last updated 20 August 2026 and is based on user searches.

One-way flights from Ontario to Northern IrelandSearch for one-way flight options from Ontario to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated 20 August 2026.

Search for one-way flight options from Ontario to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated 20 August 2026.

Find flight deals from Ontario to Northern Ireland

Round-trip from

One-way from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Northern Ireland that are best for you.

Best time to book a flight from Ontario to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from Ontario with our price prediction graph.

Cheapflights Insights

Related info for your journey

How long is the flight from Region of Ontario to Northern Ireland?

Can I find deals for flights from Ontario to Northern Ireland that include hotel bookings?

How can I find direct flights from Ontario to Northern Ireland?

Can I find deals for business class flights from Ontario to Northern Ireland?

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.

Alternative routes for Ontario to Northern Ireland

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Northern Ireland by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to United Kingdom

Book a non-stop flight to one of these other cities located in United Kingdom.

Search flights from Ontario to Northern Ireland by cabin class

Find flights from Ontario to Northern Ireland, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Ontario and Northern Ireland flights

Browse other Ontario and Northern Ireland flight options. Last updated on 20 August 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Find a return flight route from Northern Ireland

Find the right flight back to Ontario after your stay in Northern Ireland

Ontario to Northern Ireland flights

Consider these flights travelling from Ontario to Northern Ireland.

Fly with Cheapflights

How does Cheapflights help users find flights from Ontario to Northern Ireland?

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

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

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

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Ontario to Northern Ireland
Explore the most affordable flight options available from Ontario to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 August 2026.

Best flights from Ontario to Northern Ireland
Discover carefully curated flight deals from Ontario to Northern Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 20 August 2026.

Last-minute flights from Ontario to Northern Ireland
Discover last-minute flight deals from Ontario to Northern Ireland. Data last updated 20 August 2026 and is based on user searches.

One-way flights from Ontario to Northern Ireland
Search for one-way flight options from Ontario to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated 20 August 2026.