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

Prices for flights from Ontario Airport to Northern Ireland are updated daily.

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

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 Northern Ireland.

What documentation or ID do you need to fly to Northern Ireland?

The travel and health documents you'll need for your trip to Northern Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Northern Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$320 Cheap Flights from Ontario to Northern Ireland in 2026/27

Find the cheapest flights from Ontario to Northern Ireland

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:59 pm - 4:55 pmONT Ontario-BHD Belfast City

15h 56m2 stops Phoenix Sky Harbor Intl London Heathrow

11:40 am - 11:45 pmBHD Belfast City-ONT Ontario

20h 05m2 stops London Heathrow Dallas/Fort Worth

$904British Airways

Wed, Mar 3 - Mon, Mar 8

2:22 pm - 4:45 pmONT Ontario-BHD Belfast City

18h 23m2 stops Dallas/Fort Worth London Heathrow

6:45 am - 9:28 pmBHD Belfast City-ONT Ontario

22h 43m2 stops London Heathrow Dallas/Fort Worth

$1,130British Airways

Tue, Mar 2 - Fri, Mar 5

2:22 pm - 4:45 pmONT Ontario-BHD Belfast City

18h 23m2 stops Dallas/Fort Worth London Heathrow

6:45 am - 9:28 pmBHD Belfast City-ONT Ontario

22h 43m2 stops London Heathrow Dallas/Fort Worth

$1,131British Airways

Tue, Mar 2 - Fri, Mar 5

12:26 pm - 8:10 pmONT Ontario-BHD Belfast City

23h 44m2 stops Phoenix Sky Harbor Intl London Heathrow

8:35 am - 10:07 pmBHD Belfast City-ONT Ontario

21h 32m2 stops London Heathrow Phoenix Sky Harbor Intl

$1,152British Airways

Tue, Mar 2 - Fri, Mar 5

2:22 pm - 4:45 pmONT Ontario-BHD Belfast City

18h 23m2 stops Dallas/Fort Worth London Heathrow

6:45 am - 9:28 pmBHD Belfast City-ONT Ontario

22h 43m2 stops London Heathrow Dallas/Fort Worth

$1,154British Airways

Tue, Mar 2 - Fri, Mar 5

10:34 am - 4:05 pmONT Ontario-BHD Belfast City

21h 31m2 stops Dallas/Fort Worth London Heathrow

7:30 pm - 11:17 pmBHD Belfast City-ONT Ontario

35h 47m2 stops London Heathrow Dallas/Fort Worth

$1,171British Airways

Mon, Dec 28 - Tue, Jan 5

2:22 pm - 5:25 pmONT Ontario-BHD Belfast City

19h 03m2 stops Dallas/Fort Worth London Heathrow

4:55 pm - 9:59 pmBHD Belfast City-ONT Ontario

37h 04m2 stops London Heathrow Phoenix Sky Harbor Intl

$1,172British Airways

Mon, Dec 28 - Tue, Jan 5

7:00 am - 5:25 pmONT Ontario-BHD Belfast City

26h 25m2 stops Dallas/Fort Worth London Heathrow

6:15 pm - 11:08 pmBHD Belfast City-ONT Ontario

36h 53m2 stops London Heathrow Dallas/Fort Worth

$1,257British Airways

Mon, Dec 28 - Tue, Jan 5

11:59 pm - 10:50 amONT Ontario-BHD Belfast City

26h 51m2 stops Dallas/Fort Worth London Heathrow

6:15 pm - 11:08 pmBHD Belfast City-ONT Ontario

36h 53m2 stops London Heathrow Dallas/Fort Worth

$1,309British Airways

Mon, Dec 28 - Tue, Jan 5

2:22 pm - 4:05 pmONT Ontario-BHD Belfast City

17h 43m2 stops Dallas/Fort Worth London Heathrow

7:00 am - 9:57 pmBHD Belfast City-ONT Ontario

22h 57m3 stops Edinburgh Turnhouse Philadelphia Phoenix Sky Harbor Intl

$1,395Multiple Airlines

Mon, Dec 28 - Tue, Jan 5

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British Airways flights from Ontario to Northern Ireland

Our best British Airways deals on Ontario to Northern Ireland flight tickets

British Airways

Mar 3

ONT4:59 pmOntario

15h 56m

2 stops

BHD4:55 pmBelfast City

Mar 8

BHD11:40 amBelfast City

20h 05m

2 stops

ONT11:45 pmOntario

$904

British Airways

Sep 30

ONT12:37 pmOntario

16h 58m

2 stops

BHD1:35 pmBelfast City

Oct 13

BHD8:25 pmBelfast City

34h 28m

2 stops

ONT10:53 pmOntario

$1,057

British Airways

Mar 2

ONT2:22 pmOntario

18h 23m

2 stops

BHD4:45 pmBelfast City

Mar 5

BHD6:45 amBelfast City

22h 43m

2 stops

ONT9:28 pmOntario

$1,130

momondo Fare Finder

Use the filters below to find and compare flights from Ontario to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

OntarioBelfast

ONT Ontario - BHD Belfast City

ONTBHD

Ontario

Wed 3/3

4:59 pm-4:55 pm

2 stops15h 56m

Belfast City

Mon 3/8

11:40 am-11:45 pm

2 stops20h 05m

$904

OntarioBelfast

ONT Ontario - BHD Belfast City

ONTBHD

Ontario

Tue 3/2

2:22 pm-4:45 pm

2 stops18h 23m

Belfast City

Fri 3/5

6:45 am-9:28 pm

2 stops22h 43m

$1,130

OntarioBelfast

ONT Ontario - BHD Belfast City

ONTBHD

Ontario

Tue 3/2

2:22 pm-4:45 pm

2 stops18h 23m

Belfast City

Fri 3/5

6:45 am-9:28 pm

2 stops22h 43m

$1,131

OntarioBelfast

ONT Ontario - BHD Belfast City

ONTBHD

Ontario

Tue 3/2

12:26 pm-8:10 pm

2 stops23h 44m

Belfast City

Fri 3/5

8:35 am-10:07 pm

2 stops21h 32m

$1,152

OntarioBelfast

ONT Ontario - BHD Belfast City

ONTBHD

Ontario

Tue 3/2

2:22 pm-4:45 pm

2 stops18h 23m

Belfast City

Fri 3/5

6:45 am-9:28 pm

2 stops22h 43m

$1,154

OntarioBelfast

ONT Ontario - BHD Belfast City

ONTBHD

Ontario

Mon 12/28

10:34 am-4:05 pm

2 stops21h 31m

Belfast City

Tue 1/5

7:30 pm-11:17 pm

2 stops35h 47m

$1,171

OntarioBelfast

ONT Ontario - BHD Belfast City

ONTBHD

Ontario

Mon 12/28

2:22 pm-5:25 pm

2 stops19h 03m

Belfast City

Tue 1/5

4:55 pm-9:59 pm

2 stops37h 04m

$1,172

OntarioBelfast

ONT Ontario - BHD Belfast City

ONTBHD

Ontario

Mon 12/28

7:00 am-5:25 pm

2 stops26h 25m

Belfast City

Tue 1/5

6:15 pm-11:08 pm

2 stops36h 53m

$1,257

OntarioBelfast

ONT Ontario - BHD Belfast City

ONTBHD

Ontario

Mon 12/28

11:59 pm-10:50 am

2 stops26h 51m

Belfast City

Tue 1/5

6:15 pm-11:08 pm

2 stops36h 53m

$1,309

OntarioBelfast

ONT Ontario - BHD Belfast City

ONTBHD

Ontario

Mon 12/28

2:22 pm-4:05 pm

2 stops17h 43m

Belfast City

Tue 1/5

7:00 am-9:57 pm

3 stops22h 57m

$1,395

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Northern Ireland

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 Northern Ireland?

Delta is the most popular carrier operating from Ontario to Northern Ireland

Cheap Ontario to Northern Ireland flight deals and tips

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

Best Price Found	$320
Fastest flight time	15h 56m
Direct flights	None

The best one-way flight to Northern Ireland from Ontario in the past 72 hours is $320. The best round-trip flight deal from Ontario to Northern Ireland found on momondo in the last 72 hours is $904.

The fastest flight from Ontario to Northern Ireland takes 15h 56m

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

Search flight deals

Frequently asked questions about flying from Ontario to Northern Ireland

When did momondo last update prices for flights from Ontario Airport to Northern Ireland?
Prices for flights from Ontario Airport to Northern Ireland are updated daily.
How old do you have to be to fly from Ontario Airport to Northern Ireland?
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 Northern Ireland.
What documentation or ID do you need to fly to Northern Ireland?
The travel and health documents you'll need for your trip to Northern Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Northern Ireland. It is always advisable to seek 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 Northern Ireland?

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 Northern Ireland from Ontario.

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

All flight searches from Ontario to Northern Ireland on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Northern Ireland?

momondo provides multiple filters to help you find the best flight to Northern Ireland from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Ontario to Northern Ireland flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.