$453+ Cheap flights from Ontario (ONT) to Belfast
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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BHD
Sep 29 — Oct 61
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Belfast with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to Belfast
Cheapest
Best
Last-minute
One-way
Cheapest flights from Ontario to BelfastExplore the most affordable flight options available from Ontario to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 30, 2026.
Explore the most affordable flight options available from Ontario to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 30, 2026.
This Priceline deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1912:43 pm -
2 stops18h 47m
Mon 10/2611:40 am -
2 stops19h 12m
Deal found 8/26![British Airways logo]()
$1,024
This Priceline deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2112:43 pm -
2 stops16h 52m
Sat 10/2410:05 am -
2 stops20h 54m
Deal found 8/27![British Airways logo]()
$1,158
This British Airways deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/281:25 pm -
2 stops20h 00m
Tue 1/57:30 pm -
2 stops34h 31m
Deal found 8/28![British Airways logo]()
$1,166
This Ovago deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2812:41 pm -
2 stops19h 24m
Tue 1/56:35 am -
3 stops21h 51m
Deal found 8/28![Multiple Airlines logo]()
$1,350
This KAYAK deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/281:05 pm -
3 stops20h 15m
Tue 1/56:35 am -
3 stops21h 51m
Deal found 8/29![Aer Lingus logo]()
$1,425
This British Airways deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/272:22 pm -
2 stops18h 28m
Fri 1/111:50 am -
2 stops18h 12m
Deal found 8/30![British Airways logo]()
$1,878
This Orbitz deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/74:07 pm -
2 stops18h 38m
Thu 9/249:35 am -
2 stops19h 34m
Deal found 8/30![British Airways logo]()
$5,436
Best flights from Ontario to BelfastDiscover carefully curated flight deals from Ontario to Belfast that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 30, 2026.
Discover carefully curated flight deals from Ontario to Belfast that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 30, 2026.
This British Airways deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/281:25 pm -
2 stops20h 00m
Tue 1/57:30 pm -
2 stops34h 31m
Deal found 8/29![British Airways logo]()
$1,166
This Ovago deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2812:41 pm -
2 stops19h 24m
Tue 1/56:35 am -
3 stops21h 51m
Deal found 8/28![Multiple Airlines logo]()
$1,350
This British Airways deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/272:22 pm -
2 stops18h 28m
Fri 1/111:50 am -
2 stops18h 12m
Deal found 8/30![British Airways logo]()
$1,878
This KLM deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/227:05 am -
2 stops18h 05m
Thu 12/39:40 am -
2 stops20h 16m
Deal found 8/26![KLM logo]()
$8,403
This KLM deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/227:05 am -
2 stops18h 05m
Wed 12/29:40 am -
2 stops19h 19m
Deal found 8/26![KLM logo]()
$8,403
Last-minute flights from Ontario to BelfastDiscover last-minute flight deals from Ontario to Belfast. Data last updated August 30, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Belfast. Data last updated August 30, 2026 and is based on user searches.
This Orbitz deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/74:07 pm -
2 stops18h 38m
Thu 9/249:35 am -
2 stops19h 34m
Deal found 8/30![British Airways logo]()
$5,436
This Orbitz deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/74:07 pm -
2 stops18h 38m
Sun 9/2711:00 am -
2 stops19h 43m
Deal found 8/28![British Airways logo]()
$5,442
This KLM deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:05 am -
2 stops18h 15m
Thu 9/249:50 am -
2 stops20h 34m
Deal found 8/30![KLM logo]()
$14,971
This KLM deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:05 am -
2 stops18h 15m
Sun 9/279:45 am -
2 stops20h 39m
Deal found 8/28![KLM logo]()
$15,172
One-way flights from Ontario to BelfastSearch for one-way flight options from Ontario to Belfast. Find affordable one-way fares based on user searches. Data last updated August 30, 2026.
Search for one-way flight options from Ontario to Belfast. Find affordable one-way fares based on user searches. Data last updated August 30, 2026.
This British Airways deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2712:37 pm -
2 stops17h 58m
Deal found 8/27![British Airways logo]()
$453
This FlightHub deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/161:05 pm -
2 stops21h 05m
Deal found 8/26![British Airways logo]()
$490
This Delta deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/271:04 pm -
2 stops19h 51m
Deal found 8/27![Delta logo]()
$820
This BusinessClass deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/122:22 pm -
2 stops20h 58m
Deal found 8/27![British Airways logo]()
$7,714
Find flight deals from Ontario to Belfast
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Belfast (BF1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 30, 2026.
Round-trip from | $1,024 (Priceline) |
|---|---|
One-way from | $453 (British Airways) |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Belfast 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 7,457,451 searches. Data last updated August 30, 2026.
Use the filters below to find and compare flights from Ontario to Belfast that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioBelfast
ONT Ontario - BHD Belfast City
ONTBHD
Ontario
Mon 12/28
1:25 pm-5:25 pm
2 stops20h 00m
Belfast City
Tue 1/5
7:30 pm-10:01 pm
2 stops34h 31m
$1,166
OntarioBelfast
ONT Ontario - BHD Belfast City
ONTBHD
Ontario
Mon 12/28
12:41 pm-4:05 pm
2 stops19h 24m
Belfast City
Tue 1/5
6:35 am-8:26 pm
3 stops21h 51m
$1,350
Quickest round-trip
OntarioBelfast
ONT Ontario - BHD Belfast City
ONTBHD
Ontario
Sun 12/27
2:22 pm-4:50 pm
2 stops18h 28m
Belfast City
Fri 1/1
11:50 am-10:02 pm
2 stops18h 12m
$1,878
OntarioBelfast
ONT Ontario - BHD Belfast City
ONTBHD
Ontario
Sun 11/22
7:05 am-9:10 am
2 stops18h 05m
Belfast City
Thu 12/3
9:40 am-9:56 pm
2 stops20h 16m
$8,403
OntarioBelfast
ONT Ontario - BHD Belfast City
ONTBHD
Ontario
Sun 11/22
7:05 am-9:10 am
2 stops18h 05m
Belfast City
Wed 12/2
9:40 am-8:59 pm
2 stops19h 19m
$8,403
Cheapest one-way
Quickest one-way
OntarioBelfast
ONT Ontario - BHD Belfast City
ONTBHD
Ontario
Sun 9/27
12:37 pm-2:35 pm
2 stops17h 58m
$453
OntarioBelfast
ONT Ontario - BHD Belfast City
ONTBHD
Ontario
Sun 10/4
12:37 pm-2:35 pm
2 stops17h 58m
$453
OntarioBelfast
ONT Ontario - BHD Belfast City
ONTBHD
Ontario
Fri 10/16
1:05 pm-6:10 pm
2 stops21h 05m
$490
OntarioBelfast
ONT Ontario - BHD Belfast City
ONTBHD
Ontario
Sun 9/27
1:04 pm-4:55 pm
2 stops19h 51m
$820
Sorted by cheapest first
Best time to book a flight from Ontario to Belfast
Have a flexible travel schedule? Discover the best time to fly to Belfast from Ontario with our price prediction graph.
ONT-BF1
ONT-BHD
Estimated round-trip 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 Belfast
ONT-BF1
ONT-BHD
No data available for this route at this time. Please check back soon.
Related info for your journey
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