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Cheap flights from Ontario to Belfast from £238

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Belfast departing on 9/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from Ontario to Belfast

Cheap return flights

Enter your travel dates to find the best prices.
Delta Logo
09:55 - 16:55
ONT
-
BHD
23h 00m
2 stops
Delta Logo
09:50 - 23:44
BHD
-
ONT
21h 54m
2 stops
£700Delta
ב', 17 אוג' - ו', 4 ספט'
British Airways Logo
16:59 - 18:45
ONT
-
BHD
17h 46m
2 stops
British Airways Logo
06:30 - 23:06
BHD
-
ONT
24h 36m
2 stops
£773British Airways
א', 13 ספט' - ה', 17 ספט'
British Airways Logo
16:59 - 18:45
ONT
-
BHD
17h 46m
2 stops
British Airways Logo
09:35 - 21:08
BHD
-
ONT
19h 33m
2 stops
£811British Airways
א', 13 ספט' - ה', 17 ספט'
British Airways Logo
12:59 - 20:35
ONT
-
BHD
23h 36m
2 stops
British Airways Logo
09:35 - 22:58
BHD
-
ONT
21h 23m
2 stops
£813British Airways
א', 16 אוג' - ה', 20 אוג'
British Airways Logo
12:33 - 17:40
ONT
-
BHD
21h 07m
2 stops
British Airways Logo
09:35 - 22:58
BHD
-
ONT
21h 23m
2 stops
£814British Airways
א', 16 אוג' - ה', 20 אוג'
British Airways Logo
12:33 - 15:20
ONT
-
BHD
18h 47m
2 stops
British Airways Logo
14:35 - 18:15
BHD
-
ONT
35h 40m
2 stops
£820British Airways
ג', 18 אוג' - ג', 1 ספט'
British Airways Logo
16:59 - 18:45
ONT
-
BHD
17h 46m
2 stops
British Airways Logo
20:35 - 17:48
BHD
-
ONT
29h 13m
2 stops
£827British Airways
א', 13 ספט' - ה', 17 ספט'
British Airways Logo
12:19 - 15:20
ONT
-
BHD
19h 01m
2 stops
British Airways Logo
09:40 - 22:38
BHD
-
ONT
20h 58m
2 stops
£989British Airways
ג', 12 מאי - ג', 26 מאי
British Airways Logo
23:59 - 10:30
ONT
-
BHD
26h 31m
2 stops
British Airways Logo
19:05 - 19:15
BHD
-
ONT
32h 10m
2 stops
£995British Airways
ש', 29 אוג' - ש', 5 ספט'
British Airways Logo
16:52 - 18:55
ONT
-
BHD
18h 03m
2 stops
British Airways Logo
09:40 - 19:56
BHD
-
ONT
18h 16m
2 stops
£1,004British Airways
ג', 12 מאי - ג', 26 מאי

British Airways flights from Ontario to Belfast

Our best British Airways deals on Ontario to Belfast flight tickets
British Airways
13 Sept
ONT16:59Ontario
17h 46m
2 stops
BHD18:45Belfast City
17 Sept
BHD06:30Belfast City
24h 36m
2 stops
ONT23:06Ontario
£773
British Airways
13 Sept
ONT16:59Ontario
17h 46m
2 stops
BHD18:45Belfast City
17 Sept
BHD09:35Belfast City
19h 33m
2 stops
ONT21:08Ontario
£811
British Airways
16 Aug
ONT12:59Ontario
21h 46m
2 stops
BHD18:45Belfast City
20 Aug
BHD06:30Belfast City
22h 42m
2 stops
ONT21:12Ontario
£813

momondo Fare Finder

 
Customise 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, momondo users made 279,928 searches. Data last updated 27 אפריל 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

Price

Cheapest return flight

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

ב' 17/8

09:55-16:55

2 stops23h 00m

Belfast City

ו' 4/9

09:50-23:44

2 stops21h 54m

£700

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

א' 13/9

16:59-18:45

2 stops17h 46m

Belfast City

ה' 17/9

06:30-23:06

2 stops24h 36m

£773

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

א' 13/9

16:59-18:45

2 stops17h 46m

Belfast City

ה' 17/9

09:35-21:08

2 stops19h 33m

£811

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

א' 16/8

12:59-20:35

2 stops23h 36m

Belfast City

ה' 20/8

09:35-22:58

2 stops21h 23m

£813

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

א' 16/8

12:33-17:40

2 stops21h 07m

Belfast City

ה' 20/8

09:35-22:58

2 stops21h 23m

£814

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

ג' 18/8

12:33-15:20

2 stops18h 47m

Belfast City

ג' 1/9

14:35-18:15

2 stops35h 40m

£820

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

א' 13/9

16:59-18:45

2 stops17h 46m

Belfast City

ה' 17/9

20:35-17:48

2 stops29h 13m

£827

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

ג' 12/5

12:19-15:20

2 stops19h 01m

Belfast City

ג' 26/5

09:40-22:38

2 stops20h 58m

£989

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

ש' 29/8

23:59-10:30

2 stops26h 31m

Belfast City

ש' 5/9

19:05-19:15

2 stops32h 10m

£995
Fastest return journey

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

ג' 12/5

16:52-18:55

2 stops18h 03m

Belfast City

ג' 26/5

09:40-19:56

2 stops18h 16m

£1,004

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Belfast from

How to get the cheapest flight ticket from Ontario to Belfast

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Ontario to Belfast?

KLM, Delta, and British Airways are the most popular carriers operating from Ontario to Belfast

Cheap Ontario to Belfast flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Belfast

Fastest flight time

17h 46m

Direct flights

None
The fastest flight from Ontario to Belfast takes 17h 46m
There are no direct flights from Ontario to Belfast. There are no popular flight routes from Ontario to Belfast.
Search flight deals

Frequently asked questions about flying from Ontario to Belfast

  • How far is Ontario to Belfast by plane?

    The straight-line distance from Ontario to Belfast is 5095.8 mi. Flights usually cover this in 17h 46m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Ontario Airport to Belfast?

    Prices for flights from Ontario Airport to Belfast refresh daily.

  • How old do you have to be to fly from Ontario Airport to Belfast?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Belfast.

  • What documentation or ID do you need to fly to Belfast?

    The necessary travel and health documents for your Belfast trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Belfast?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Belfast from Ontario.

Can I find flights from Ontario to Belfast with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Belfast from Ontario with this policy.

How can momondo help me find flights from Ontario to Belfast?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Belfast.

I’m not ready to book a flight from Ontario to Belfast right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Belfast, momondo offers a useful price alert feature which will track prices for flights to Belfast from Ontario and alert you when they change.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 12.2 mi from Belfast
Belfast Intl Airport
Belfast City Airport