$861 Find Cheap Flights from Belfast to Ontario

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Belfast to Ontario departing on 4/20. 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 Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Belfast to Ontario, 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 Belfast to Ontario, 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
$861
British Airways
Mon 4/20Mon 4/27
BHD - ONT • 2 stops
Cheapest one-way
$11,330
KLM
Mon 6/15
BHD - ONT • 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 Ontario!
Flight Deals
Useful Info
Flight Deals

Cheap Flights from Belfast to Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Belfast to Ontario 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 Belfast to Ontario

Mon, Apr 20 - Mon, Apr 27
British Airways Logo
11:35 am - 9:59 pm
BHD
-
ONT
18h 24m
2 stops
British Airways Logo
4:52 pm - 6:45 pm
ONT
-
BHD
17h 53m
2 stops
$861British Airways
Thu, Mar 19 - Mon, Mar 23
British Airways Logo
6:35 am - 9:24 pm
BHD
-
ONT
21h 49m
2 stops
British Airways Logo
6:00 am - 10:40 am
ONT
-
BHD
21h 40m
2 stops
$869British Airways
Thu, Mar 19 - Mon, Mar 23
British Airways Logo
6:35 am - 9:24 pm
BHD
-
ONT
21h 49m
2 stops
British Airways Logo
6:00 am - 10:40 am
ONT
-
BHD
21h 40m
2 stops
$870British Airways
Thu, Mar 19 - Mon, Mar 23
British Airways Logo
6:35 am - 11:59 pm
BHD
-
ONT
24h 24m
2 stops
British Airways Logo
6:00 am - 10:40 am
ONT
-
BHD
21h 40m
2 stops
$871British Airways
Thu, Mar 19 - Mon, Mar 23
British Airways Logo
6:35 am - 11:59 pm
BHD
-
ONT
24h 24m
2 stops
British Airways Logo
10:56 am - 4:05 pm
ONT
-
BHD
22h 09m
2 stops
$945British Airways
Mon, Aug 17 - Tue, Sep 1
American Airlines Logo
3:20 pm - 6:25 pm
BHD
-
ONT
35h 05m
2 stops
American Airlines Logo
2:31 pm - 6:55 pm
ONT
-
BHD
20h 24m
2 stops
$3,548American Airlines
Mon, Aug 17 - Thu, Sep 3
American Airlines Logo
3:20 pm - 4:24 pm
BHD
-
ONT
33h 04m
2 stops
American Airlines Logo
1:00 pm - 7:25 pm
ONT
-
BHD
22h 25m
2 stops
$3,683American Airlines
Tue, Aug 18 - Thu, Sep 3
British Airways Logo
6:30 am - 4:24 pm
BHD
-
ONT
17h 54m
2 stops
British Airways Logo
4:54 pm - 6:45 pm
ONT
-
BHD
17h 51m
2 stops
$3,691British Airways
Sun, Aug 16 - Sat, Sep 5
American Airlines Logo
6:30 am - 6:25 pm
BHD
-
ONT
19h 55m
2 stops
American Airlines Logo
10:50 am - 6:15 pm
ONT
-
BHD
23h 25m
2 stops
$3,819American Airlines
Sat, Aug 15 - Fri, Sep 4
British Airways Logo
7:05 am - 6:25 pm
BHD
-
ONT
19h 20m
2 stops
British Airways Logo
11:59 pm - 6:15 pm
ONT
-
BHD
34h 16m
2 stops
$3,827British Airways
Useful Info

When to book flights from Belfast to Ontario

Are your dates flexible? Find out the best times to travel from Belfast to Ontario 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 Belfast to Ontario

  • What is the cheapest flight from Belfast to Ontario?

    In the last 3 days, the lowest price for a flight from Belfast to Ontario was $11,330 for a one-way ticket and $861 for a round-trip.

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

    Yes

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

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

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

    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 Belfast to Ontario.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Belfast 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 Belfast to Ontario?

    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 Ontario with an airline and back to Belfast with another airline.

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

    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 Ontario from Belfast 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 Belfast to Ontario

Information on your arrival and departure airports

Ontario (ONT)