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

Prices for flights from Ontario Airport to Belfast are refreshed on a daily basis.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Belfast.

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

The required travel and health documents for your Belfast trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Belfast. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$369 Cheap Flights from Ontario to Belfast in 2026

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Ontario to Belfast

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 4:35 pm

ONT

BHD

26h 35m

2 stops

9:10 am - 10:29 pm

BHD

ONT

21h 19m

2 stops

$641British Airways

Wed, Feb 25 - Sun, Mar 1

10:58 am - 2:15 pm

ONT

BHD

19h 17m

2 stops

12:25 pm - 10:08 am

BHD

ONT

29h 43m

2 stops

$1,024American Airlines

Sat, Jan 31 - Wed, Feb 4

5:02 pm - 4:45 pm

ONT

BHD

15h 43m

2 stops

11:25 am - 10:49 pm

BHD

ONT

19h 24m

2 stops

$1,235British Airways

Sat, Feb 21 - Wed, Feb 25

2:22 pm - 3:30 pm

ONT

BHD

17h 08m

2 stops

11:00 am - 9:26 pm

BHD

ONT

18h 26m

2 stops

$2,830British Airways

Thu, Jun 11 - Fri, Jun 19

12:26 pm - 8:30 pm

ONT

BHD

24h 04m

2 stops

7:05 am - 10:35 pm

BHD

ONT

23h 30m

2 stops

$4,872British Airways

Sat, Apr 4 - Sat, Apr 11

British Airways flights from Ontario to Belfast

Our best British Airways deals on Ontario to Belfast flight tickets

British Airways

Feb 25

ONT6:00 amOntario

26h 35m

2 stops

BHD4:35 pmBelfast City

Mar 1

BHD9:10 amBelfast City

21h 19m

2 stops

ONT10:29 pmOntario

$641

British Airways

Jan 23

ONT10:58 amOntario

19h 17m

2 stops

BHD2:15 pmBelfast City

Feb 3

BHD11:25 amBelfast City

19h 23m

2 stops

ONT10:48 pmOntario

$757

British Airways

Feb 21

ONT5:02 pmOntario

15h 43m

2 stops

BHD4:45 pmBelfast City

Feb 25

BHD11:25 amBelfast City

18h 54m

2 stops

ONT10:19 pmOntario

$1,235

Fly from

Fly to

Route

Depart

Return

Price

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Wed 2/25

6:00 am-4:35 pm

2 stops26h 35m

Belfast City

Sun 3/1

9:10 am-10:29 pm

2 stops21h 19m

$641

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Sat 1/31

10:58 am-2:15 pm

2 stops19h 17m

Belfast City

Wed 2/4

12:25 pm-10:08 am

2 stops29h 43m

$1,024

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Sat 2/21

5:02 pm-4:45 pm

2 stops15h 43m

Belfast City

Wed 2/25

11:25 am-10:49 pm

2 stops19h 24m

$1,235

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Thu 6/11

2:22 pm-3:30 pm

2 stops17h 08m

Belfast City

Fri 6/19

11:00 am-9:26 pm

2 stops18h 26m

$2,830

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Sat 4/4

12:26 pm-8:30 pm

2 stops24h 04m

Belfast City

Sat 4/11

7:05 am-10:35 pm

2 stops23h 30m

$4,872

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Sun 3/1

2:39 pm-4:50 pm

2 stops18h 11m

$369

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Tue 4/21

10:59 am-5:35 pm

2 stops22h 36m

$374

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Mon 3/2

1:15 pm-4:45 pm

2 stops19h 30m

$411

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Fri 2/27

5:02 pm-5:15 pm

2 stops16h 13m

$414

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Thu 2/26

5:02 pm-4:40 pm

2 stops15h 38m

$419

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

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?

British Airways and KLM 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 55m
Direct flights	None

The fastest flight from Ontario to Belfast takes 17h 55m

There are no direct flights from Ontario to Belfast. There are no popular flight routes from Ontario to Belfast.

Search flight deals

How far is Ontario to Belfast by plane?
The straight-line distance from Ontario to Belfast is 5095.8 mi. By plane, this route typically takes 17h 55m.
When did momondo last update prices for flights from Ontario Airport to Belfast?
Prices for flights from Ontario Airport to Belfast are refreshed on a daily basis.
How old do you have to be to fly from Ontario Airport to Belfast?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Belfast.
What documentation or ID do you need to fly to Belfast?
The required travel and health documents for your Belfast trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Belfast. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

Finding the right flight to Belfast from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Belfast quick and easy, saving you time and money.

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?

Once all potential Ontario to Belfast flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to Belfast from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.