$365+ 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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BHD
Sep 3 — Sep 101
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
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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
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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 4, 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 4, 2026.
This British Airways deal was found by Cheapflights users on 7/30. 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 11/291:27 pm -
2 stops19h 23m
Wed 12/25:40 pm -
2 stops32h 38m
Deal found 7/30![British Airways logo]()
$1,118
This British Airways deal was found by Cheapflights users on 7/30. 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.
Mon 12/2812:55 pm -
2 stops19h 10m
Tue 1/57:25 pm -
2 stops34h 36m
Deal found 7/30![British Airways logo]()
$1,152
This FlightHub deal was found by Cheapflights users on 8/3. 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.
Mon 8/1712:33 pm -
2 stops18h 57m
Thu 9/36:30 am -
2 stops20h 17m
Deal found 8/3![British Airways logo]()
$1,167
This Ovago deal was found by Cheapflights users on 8/3. 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 12/282:42 pm -
2 stops18h 43m
Tue 1/59:50 am -
3 stops20h 49m
Deal found 8/3![Multiple Airlines logo]()
$1,423
This FlightHub deal was found by Cheapflights users on 8/2. 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.
Tue 12/222:42 pm -
2 stops19h 58m
Fri 1/111:30 am -
2 stops20h 16m
Deal found 8/2![British Airways logo]()
$1,453
This KAYAK deal was found by Cheapflights users on 8/1. 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 12/281:18 pm -
3 stops20h 02m
Tue 1/56:35 am -
3 stops37h 45m
Deal found 8/1![Aer Lingus logo]()
$1,904
This FlightHub deal was found by Cheapflights users on 7/31. 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 9/42:27 pm -
2 stops19h 43m
Fri 9/116:30 am -
2 stops24h 07m
Deal found 7/31![British Airways logo]()
$1,921
This Arangrant deal was found by Cheapflights users on 8/2. 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 Arangrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/32:15 pm -
2 stops20h 30m
Wed 8/1210:05 am -
2 stops20h 54m
Deal found 8/2![British Airways logo]()
$1,928
This KLM deal was found by Cheapflights users on 8/3. 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.
Tue 8/187:05 am -
2 stops18h 15m
Thu 9/39:50 am -
2 stops20h 02m
Deal found 8/3![KLM logo]()
$3,368
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 4, 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 4, 2026.
This British Airways deal was found by Cheapflights users on 7/30. 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 11/291:27 pm -
2 stops19h 23m
Wed 12/25:40 pm -
2 stops32h 38m
Deal found 7/30![British Airways logo]()
$1,118
This British Airways deal was found by Cheapflights users on 7/31. 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 1/2412:57 pm -
2 stops19h 53m
Thu 1/286:35 am -
2 stops20h 10m
Deal found 7/31![British Airways logo]()
$1,127
This British Airways deal was found by Cheapflights users on 7/30. 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.
Mon 12/2812:55 pm -
2 stops19h 10m
Tue 1/57:25 pm -
2 stops34h 36m
Deal found 7/30![British Airways logo]()
$1,152
This KLM deal was found by Cheapflights users on 8/3. 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.
Tue 8/187:05 am -
2 stops18h 15m
Wed 9/29:50 am -
2 stops20h 33m
Deal found 8/3![KLM logo]()
$3,369
This FlightHub deal was found by Cheapflights users on 7/31. 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 9/42:27 pm -
2 stops19h 43m
Fri 9/116:30 am -
2 stops24h 07m
Deal found 7/31![British Airways logo]()
$1,921
This KLM deal was found by Cheapflights users on 8/3. 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 8/165:05 pm -
2 stops15h 50m
Wed 9/29:50 am -
2 stops20h 33m
Deal found 8/3![KLM logo]()
$4,475
This KLM deal was found by Cheapflights users on 8/3. 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 8/177:05 am -
2 stops18h 15m
Wed 9/29:50 am -
2 stops20h 33m
Deal found 8/3![KLM logo]()
$9,776
Last-minute flights from Ontario to BelfastDiscover last-minute flight deals from Ontario to Belfast. Data last updated August 4, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Belfast. Data last updated August 4, 2026 and is based on user searches.
This Arangrant deal was found by Cheapflights users on 8/2. 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 Arangrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/32:15 pm -
2 stops20h 30m
Wed 8/1210:05 am -
2 stops20h 54m
Deal found 8/2![British Airways logo]()
$1,928
This KLM deal was found by Cheapflights users on 8/3. 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 8/165:05 pm -
2 stops15h 50m
Thu 9/39:50 am -
2 stops20h 02m
Deal found 8/3![KLM logo]()
$4,474
This KLM deal was found by Cheapflights users on 8/3. 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 8/165:05 pm -
2 stops15h 50m
Wed 9/29:50 am -
2 stops20h 33m
Deal found 8/3![KLM logo]()
$4,475
This KLM deal was found by Cheapflights users on 8/3. 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 8/165:05 pm -
2 stops15h 50m
Fri 9/49:50 am -
2 stops20h 02m
Deal found 8/3![KLM logo]()
$5,312
This FlightHub deal was found by Cheapflights users on 8/3. 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.
Mon 8/1712:33 pm -
2 stops18h 57m
Thu 9/36:30 am -
2 stops20h 17m
Deal found 8/3![British Airways logo]()
$1,167
This KLM deal was found by Cheapflights users on 8/3. 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.
Tue 8/187:05 am -
2 stops18h 15m
Thu 9/39:50 am -
2 stops20h 02m
Deal found 8/3![KLM logo]()
$3,368
This KLM deal was found by Cheapflights users on 8/3. 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.
Tue 8/187:05 am -
2 stops18h 15m
Wed 9/29:50 am -
2 stops20h 33m
Deal found 8/3![KLM logo]()
$3,369
This KLM deal was found by Cheapflights users on 8/3. 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.
Tue 8/187:05 am -
2 stops18h 15m
Fri 9/49:50 am -
2 stops20h 02m
Deal found 8/3![KLM logo]()
$4,206
This BusinessClass deal was found by Cheapflights users on 8/3. 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.
Sun 8/2312:33 pm -
2 stops18h 02m
Sun 9/131:10 pm -
2 stops18h 26m
Deal found 8/3![British Airways logo]()
$6,326
This FlightHub deal was found by Cheapflights users on 7/31. 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 9/42:27 pm -
2 stops19h 43m
Fri 9/116:30 am -
2 stops24h 07m
Deal found 7/31![British Airways logo]()
$1,921
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 4, 2026.
Search for one-way flight options from Ontario to Belfast. Find affordable one-way fares based on user searches. Data last updated August 4, 2026.
This oojo deal was found by Cheapflights users on 8/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/52:22 pm -
2 stops18h 18m
Deal found 8/3![British Airways logo]()
$365
This British Airways deal was found by Cheapflights users on 8/1. 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.
Tue 9/112:59 pm -
2 stops23h 36m
Deal found 8/1![British Airways logo]()
$625
This American Airlines deal was found by Cheapflights users on 8/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:00 am -
2 stops23h 35m
Deal found 8/1![American Airlines logo]()
$734
This American Airlines deal was found by Cheapflights users on 8/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3112:33 pm -
2 stops22h 12m
Deal found 8/1![American Airlines logo]()
$808
This FlightHub deal was found by Cheapflights users on 8/3. 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.
Tue 8/182:27 pm -
2 stops19h 08m
Deal found 8/3![British Airways logo]()
$848
This British Airways deal was found by Cheapflights users on 8/3. 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 8/162:27 pm -
2 stops20h 18m
Deal found 8/3![British Airways logo]()
$903
This American Airlines deal was found by Cheapflights users on 8/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/152:43 pm -
2 stops20h 37m
Deal found 8/3![American Airlines logo]()
$1,292
This KLM deal was found by Cheapflights users on 8/3. 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.
Fri 8/145:05 pm -
2 stops15h 50m
Deal found 8/3![KLM logo]()
$1,371
This American Airlines deal was found by Cheapflights users on 8/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/204:07 pm -
2 stops19h 18m
Deal found 8/3![American Airlines logo]()
$1,442
This British Airways deal was found by Cheapflights users on 7/30. 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 9/138:25 am -
2 stops18h 05m
Deal found 7/30![British Airways logo]()
$3,201
This BusinessClass deal was found by Cheapflights users on 8/3. 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.
Mon 8/1712:59 pm -
2 stops18h 31m
Deal found 8/3![British Airways logo]()
$7,521
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 4, 2026.
Round-trip from | $1,118 (British Airways) |
|---|---|
One-way from | $365 (oojo) |
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 2,558,603 searches. Data last updated August 4, 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 - BHD
ONTBHD
Ontario
Sun 11/29
1:27 pm-4:50 pm
2 stops19h 23m
Belfast City
Wed 12/2
5:40 pm-6:18 pm
2 stops32h 38m
$1,118
OntarioBelfast
ONT - BHD
ONTBHD
Ontario
Sun 1/24
12:57 pm-4:50 pm
2 stops19h 53m
Belfast City
Thu 1/28
6:35 am-6:45 pm
2 stops20h 10m
$1,127
OntarioBelfast
ONT - BHD
ONTBHD
Ontario
Mon 12/28
12:55 pm-4:05 pm
2 stops19h 10m
Belfast City
Tue 1/5
7:25 pm-10:01 pm
2 stops34h 36m
$1,152
OntarioBelfast
ONT - BHD
ONTBHD
Ontario
Fri 9/4
2:27 pm-6:10 pm
2 stops19h 43m
Belfast City
Fri 9/11
6:30 am-10:37 pm
2 stops24h 07m
$1,921
OntarioBelfast
ONT - BHD
ONTBHD
Ontario
Tue 8/18
7:05 am-9:20 am
2 stops18h 15m
Belfast City
Wed 9/2
9:50 am-10:23 pm
2 stops20h 33m
$3,369
Quickest round-trip
OntarioBelfast
ONT - BHD
ONTBHD
Ontario
Sun 8/16
5:05 pm-4:55 pm
2 stops15h 50m
Belfast City
Wed 9/2
9:50 am-10:23 pm
2 stops20h 33m
$4,475
OntarioBelfast
ONT - BHD
ONTBHD
Ontario
Mon 8/17
7:05 am-9:20 am
2 stops18h 15m
Belfast City
Wed 9/2
9:50 am-10:23 pm
2 stops20h 33m
$9,776
Cheapest one-way
OntarioBelfast
ONT - BHD
ONTBHD
Ontario
Thu 11/5
2:22 pm-4:40 pm
2 stops18h 18m
$365
OntarioBelfast
ONT - BHD
ONTBHD
Ontario
Tue 9/1
12:59 pm-8:35 pm
2 stops23h 36m
$625
OntarioBelfast
ONT - BHD
ONTBHD
Ontario
Mon 8/31
12:33 pm-6:45 pm
2 stops22h 12m
$808
Showing 1-10 of 16 resultsSorted 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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