$640 Find Cheap Flights from Ontario to Belfast

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Belfast departing on 3/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Belfast

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Belfast, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Belfast, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$816
British Airways
Tue 3/17Sun 4/5
ONT - BHD • 2 stops
Cheapest one-way
$414
British Airways
Wed 3/4
ONT - BHD • 2 stops
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Belfast!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Belfast (ONT-BHD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Belfast that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Belfast

Tue, Mar 17 - Sun, Apr 5
British Airways Logo
3:19 pm - 4:45 pm
ONT
-
BHD
18h 26m
2 stops
British Airways Logo
1:10 pm - 11:59 pm
BHD
-
ONT
18h 49m
2 stops
$816British Airways
Tue, Mar 17 - Wed, Apr 8
British Airways Logo
10:56 am - 11:30 am
ONT
-
BHD
17h 34m
2 stops
British Airways Logo
4:50 pm - 9:59 pm
BHD
-
ONT
37h 09m
2 stops
$831British Airways
Wed, Mar 18 - Sun, Apr 5
British Airways Logo
2:39 pm - 4:30 pm
ONT
-
BHD
18h 51m
2 stops
British Airways Logo
1:10 pm - 11:59 pm
BHD
-
ONT
18h 49m
2 stops
$909British Airways
Wed, Mar 25 - Wed, Apr 1
British Airways Logo
2:39 pm - 7:10 pm
ONT
-
BHD
21h 31m
2 stops
British Airways Logo
10:05 am - 11:59 pm
BHD
-
ONT
21h 54m
2 stops
$1,050British Airways
Thu, Mar 12 - Wed, Apr 8
KLM Logo
1:20 pm - 4:40 pm
ONT
-
BHD
20h 20m
2 stops
KLM Logo
9:50 am - 10:34 pm
BHD
-
ONT
20h 44m
2 stops
$1,156KLM
Mon, Mar 16 - Wed, Apr 8
KLM Logo
1:20 pm - 4:40 pm
ONT
-
BHD
20h 20m
2 stops
KLM Logo
9:50 am - 10:34 pm
BHD
-
ONT
20h 44m
2 stops
$1,193KLM
Thu, Mar 12 - Fri, Apr 10
KLM Logo
1:20 pm - 4:40 pm
ONT
-
BHD
20h 20m
2 stops
KLM Logo
9:50 am - 11:51 pm
BHD
-
ONT
22h 01m
2 stops
$1,207KLM
Wed, Mar 11 - Thu, Apr 9
Multiple Airlines Logo
10:56 am - 10:15 am
ONT
-
BHD
16h 19m
2 stops
Multiple Airlines Logo
12:45 pm - 9:59 pm
BHD
-
ONT
17h 14m
2 stops
$1,212Multiple Airlines
Mon, Mar 16 - Sun, Apr 5
KLM Logo
1:20 pm - 4:40 pm
ONT
-
BHD
20h 20m
2 stops
KLM Logo
9:50 am - 10:34 pm
BHD
-
ONT
20h 44m
2 stops
$1,223KLM
Tue, May 12 - Tue, May 26
British Airways Logo
4:52 pm - 6:55 pm
ONT
-
BHD
18h 03m
2 stops
British Airways Logo
6:30 am - 11:59 pm
BHD
-
ONT
25h 29m
2 stops
$1,232British Airways
Booking Insights

KAYAK's insights & trends for Ontario to Belfast flights

Get data-powered insights and trends into flights from Ontario to Belfast to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Ontario to Belfast?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Ontario to Belfast were found on British Airways ($816) and KLM ($1,156).

Find deals

When to book flights from Ontario to Belfast

Are your dates flexible? Find out the best times to travel from Ontario to Belfast based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Belfast

  • What is the cheapest flight from Ontario to Belfast?

    In the last 3 days, the lowest price for a flight from Ontario to Belfast was $414 for a one-way ticket and $816 for a round-trip.

  • Do I need a passport to fly between Ontario and Belfast?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Ontario and on arrival in Belfast.

  • Which aircraft models fly most regularly from Ontario to Belfast?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Ontario to Belfast?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Belfast.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Belfast?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Belfast?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Belfast with an airline and back to Ontario with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Belfast?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Belfast from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Ontario to Belfast

Information on your arrival and departure airports

Ontario (ONT)