Find flights
When to book
Airlines
FAQs

Cheap flights from Ontario to Northern Ireland from £577

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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BFS
1 Apr — 8 Apr1
1 adult

Cheap flight deals from Ontario to Northern Ireland

Keep the following information in mind while searching for Ontario to Northern Ireland flight deals. Data was last updated 27 March 2025.

Round-trip from

£619

One-way from

£577

Popular in

June

Cheapest in

November

Average price

£596
British Airways
  • British Airways
  • 25/4-2/5
  • 4 total stops
  • 40h 05m total
  • Ontario to Northern Ireland
Search Deals
British Airways
  • British Airways
  • 2/7
  • 2 total stops
  • 17h 01m total
  • Ontario to Northern Ireland
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£69 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

Find flight deals from Ontario to Northern Ireland

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 27 March 2025.

Fri 25/416:35ONT - BHD
2 stops20h 10mBritish Airways
Fri 2/511:55BHD - ONT
2 stops19h 55mBritish Airways
Deal found 26/3£619
Tue 13/512:45ONT - BHD
2 stops20h 45mMultiple Airlines
Thu 22/516:20BHD - ONT
3 stops37h 38mMultiple Airlines
Deal found 26/3£1,079

Cheapflights Fare Finder

Customise your flight search to find flights from Ontario to Northern Ireland 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 27 March 2025.
Use the filters below to find and compare flights from Ontario to Northern Ireland that are best for you.

Fly from

Ontario

Fly to

Northern Ireland

Route

Depart

Return

Price

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Fri 25/4

16:35-20:45

2 stops20h 10m

Belfast City

Fri 2/5

11:55-23:50

2 stops19h 55m

£619

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Tue 13/5

12:45-17:30

2 stops20h 45m

Belfast City

Thu 22/5

16:20-21:58

3 stops37h 38m

£1,079

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Wed 2/7

10:54-11:55

2 stops17h 01m

£577

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Thu 17/7

14:39-20:45

2 stops22h 06m

£4,248

Flights are sorted by cheapest return flights first.

Deals found on 26/3

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.
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

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

Currently, January is the cheapest month in which you can book a flight from Ontario to Northern Ireland (average of £67). Flying from Ontario to Northern Ireland in July is currently the most expensive (average of £90). 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.

Rainfall in Northern Ireland by month

Plan your trip to Northern Ireland by taking into account the average rainfall totals by month.

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.

Temperature in Northern Ireland by month

Plan your trip to Northern Ireland by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Northern Ireland

Get insights into the airlines that provide service to Northern Ireland. 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 Northern Ireland. Reviews last updated 27 March 2025.
Iberia
7.0
Good
2,648 reviews
Check prices

Entertainment

6.6

Crew

7.6

Overall

7.0

Comfort

6.7

Boarding

7.1

Food

6.3

Reviews

1 / 20
10.0
Excellent

Maxim,Feb 2025

BOS - MAD

All Iberia staff with whom we interacted, including the flight crew, were helpful, kind, and professional. The plane looked practically new and was very clean. The seats were comfortable, and there was a lot of legroom in our emergency row seats. Our vegan dinner was quite good (rice with vegetables and grilled tofu, a fresh salad, and fresh fruit), but the breakfast snack seemed unappealing. Overall, this flight from Boston to Madrid was a great value.
Iberia
7.0
Good
2,648 reviews
Iberia
7.0
Good
2,648 reviews
Check prices

Entertainment

6.6

Crew

7.6

Overall

7.0

Comfort

6.7

Boarding

7.1

Food

6.3

Reviews

1 / 20
10.0
Excellent

Maxim,Feb 2025

BOS - MAD

All Iberia staff with whom we interacted, including the flight crew, were helpful, kind, and professional. The plane looked practically new and was very clean. The seats were comfortable, and there was a lot of legroom in our emergency row seats. Our vegan dinner was quite good (rice with vegetables and grilled tofu, a fresh salad, and fresh fruit), but the breakfast snack seemed unappealing. Overall, this flight from Boston to Madrid was a great value.
British Airways
6.6
Okay
6,712 reviews
Iberia
7.0
Good
2,648 reviews
Check prices

Entertainment

6.6

Crew

7.6

Overall

7.0

Comfort

6.7

Boarding

7.1

Food

6.3

Reviews

1 / 20
10.0
Excellent

Maxim,Feb 2025

BOS - MAD

All Iberia staff with whom we interacted, including the flight crew, were helpful, kind, and professional. The plane looked practically new and was very clean. The seats were comfortable, and there was a lot of legroom in our emergency row seats. Our vegan dinner was quite good (rice with vegetables and grilled tofu, a fresh salad, and fresh fruit), but the breakfast snack seemed unappealing. Overall, this flight from Boston to Madrid was a great value.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Northern Ireland. 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 from for flights from Ontario to Northern Ireland?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Northern Ireland.

  • 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.

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

    Currently, January is the cheapest month in which you can book a flight from Ontario to Northern Ireland (average of £67). Flying from Ontario to Northern Ireland in July is currently the most expensive (average of £90). 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

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.
Los Angeles to Heathrow flights
San Francisco to Heathrow flights
Los Angeles to London City flights
Los Angeles to Gatwick flights
San Francisco to Gatwick flights
San Francisco to London City flights
San Diego to Heathrow flights
Ontario to Heathrow flights
Los Angeles to Luton flights
Las Vegas to Heathrow flights
Los Angeles to Stansted flights
San Diego to Gatwick flights
San Francisco to Stansted flights
San Jose to Heathrow flights
San Francisco to Edinburgh flights
Las Vegas to Gatwick flights
Los Angeles to Edinburgh flights
San Jose to Gatwick flights
Las Vegas to London City flights
Santa Ana to Heathrow flights
San Francisco to Luton flights
Sacramento to Heathrow flights
Oakland to Heathrow flights
Burbank to Heathrow flights
Los Angeles to Manchester flights
Los Angeles to Southend flights
San Francisco to Manchester flights
Ontario to Edinburgh flights
Sacramento to Gatwick flights
Los Angeles to Glasgow Intl flights
San Francisco to Glasgow Intl flights
San Diego to Edinburgh flights
Los Angeles to Southampton flights
Oakland to Gatwick flights
San Diego to Manchester flights
Santa Ana to Gatwick flights
Reno to Heathrow flights
Palm Springs to Heathrow flights
San Jose to Edinburgh flights
San Francisco to Birmingham flights
Ontario to Manchester flights
Reno to Gatwick flights

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 Ontario to Northern Ireland?

Deals for Ontario to Northern Ireland flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

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 Ontario to Northern Ireland.

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

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

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Northern Ireland from Ontario today and book when prices fit your budget.

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.