Cheap Flights from Ontario International Airport to Northern Ireland from 890 € Return

Flight deals from Ontario International Airport to Northern Ireland

Looking for cheap tickets from Ontario International Airport to Northern Ireland, or a last-minute trip? Find the lowest prices on one-way and return tickets right here.

Belfast.890 € per passenger.Departing Fri, 27 Feb, returning Sun, 8 Mar.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Ontario International on Fri, 27 Feb, arriving in Belfast City.Inbound indirect flight with British Airways, departs from Belfast City on Sun, 8 Mar, arriving in Ontario International.Price includes taxes and charges.From 890 €, select.

Derry.1.121 € per passenger.Departing Sat, 1 Aug, returning Sun, 16 Aug.Return flight with Alaska Airlines and British Airways.Outbound indirect flight with Alaska Airlines, departs from Ontario International on Sat, 1 Aug, arriving in Derry.Inbound indirect flight with British Airways, departs from Derry on Sun, 16 Aug, arriving in Ontario International.Price includes taxes and charges.From 1.121 €, select.

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Flying from Ontario International Airport to Northern Ireland

Arm yourself with these facts on the fly.

Cheapest flight found	890 €
Cheapest month to fly	February

How to find cheap flights from Ontario International Airport to Northern Ireland

We've compared the best online travel agents and flight providers on the internet to find the cheapest plane tickets from Ontario International Airport to Northern Ireland. Other savvy travellers recently found return flights from 890 € and one-way tickets from 344 €. Ready to join them? Here are a few tips to help you do it the smart way.

Fly in February

The cheapest time to fly from Ontario International Airport to Northern Ireland is currently February.

Flex your dates for the best rates

If you’re flexible on your departure dates, you can use Skyscanner's whole month tool to find the cheapest day of the year to fly from Ontario International Airport to anywhere you choose in Northern Ireland.

Watch as fares rise and fall

With Price Alerts, we'll let you know when flight prices from Ontario International Airport to your chosen airport in Northern Ireland go up or down so you can book when the time is just right.

Relax – these are fee-free flight tickets

With us, there are no added fees – the Northern Ireland Airport to Northern Ireland flight price you see when you search with us is what you pay to the provider.

Frequently asked questions

What is the average price of a flight from Ontario International Airport to Northern Ireland?

We looked at all of the upcoming return flights from Ontario International Airport to Northern Ireland we could find over the next 12 months. It looks like 890 € is the best price. This is good, compared to the average Northern Ireland ticket price of 1.006 €.

What is the cheapest month to fly from Ontario International Airport to Northern Ireland?

The cheapest month to fly from Ontario International Airport to Belfast City Airport is currently February.
The cheapest month to fly from Ontario International Airport to Derry Airport is usually August.

Which upcoming date is cheapest to fly from Ontario International Airport to Northern Ireland on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Ontario International Airport to Northern Ireland on Friday, 27 February 2026.

If I'm flying from Ontario International Airport, where in Northern Ireland is cheapest to fly into?

If you're flying from Ontario International, the cheapest city in Northern Ireland to fly into is Belfast. The cheapest airport serving Belfast at the moment is Belfast City.