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Cheap flights from Northern Ireland to Los Angeles from $853

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Northern Ireland to Los Angeles departing on 4/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Northern Ireland to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
12:45 pm - 9:59 pm
BHD
-
ONT
17h 14m
2 stops
British Airways Logo
4:52 pm - 6:45 pm
ONT
-
BHD
17h 53m
2 stops
$853British Airways
Thu, Apr 23 - Mon, Apr 27
British Airways Logo
11:35 am - 9:59 pm
BHD
-
ONT
18h 24m
2 stops
British Airways Logo
4:52 pm - 6:45 pm
ONT
-
BHD
17h 53m
2 stops
$861British Airways
Mon, Apr 20 - Mon, Apr 27
British Airways Logo
6:35 am - 11:59 pm
BHD
-
ONT
24h 24m
2 stops
British Airways Logo
6:00 am - 10:40 am
ONT
-
BHD
21h 40m
2 stops
$871British Airways
Thu, Mar 19 - Mon, Mar 23
British Airways Logo
6:35 am - 11:59 pm
BHD
-
ONT
24h 24m
2 stops
British Airways Logo
10:56 am - 4:05 pm
ONT
-
BHD
22h 09m
2 stops
$945British Airways
Thu, Mar 19 - Mon, Mar 23
British Airways Logo
6:35 am - 9:24 pm
BHD
-
ONT
21h 49m
2 stops
British Airways Logo
2:39 pm - 4:05 pm
ONT
-
BHD
18h 26m
2 stops
$969British Airways
Thu, Mar 19 - Mon, Mar 23
British Airways Logo
12:45 pm - 9:59 pm
BHD
-
ONT
17h 14m
2 stops
British Airways Logo
4:52 pm - 6:10 pm
ONT
-
BHD
17h 18m
2 stops
$1,030British Airways
Thu, Apr 23 - Fri, May 1
American Airlines Logo
3:20 pm - 6:25 pm
BHD
-
ONT
35h 05m
2 stops
American Airlines Logo
2:31 pm - 6:55 pm
ONT
-
BHD
20h 24m
2 stops
$3,548American Airlines
Mon, Aug 17 - Tue, Sep 1
American Airlines Logo
3:20 pm - 4:24 pm
BHD
-
ONT
33h 04m
2 stops
American Airlines Logo
1:00 pm - 7:25 pm
ONT
-
BHD
22h 25m
2 stops
$3,683American Airlines
Mon, Aug 17 - Thu, Sep 3
British Airways Logo
6:30 am - 4:24 pm
BHD
-
ONT
17h 54m
2 stops
British Airways Logo
4:54 pm - 6:45 pm
ONT
-
BHD
17h 51m
2 stops
$3,691British Airways
Tue, Aug 18 - Thu, Sep 3
American Airlines Logo
3:50 pm - 4:24 pm
BHD
-
ONT
32h 34m
2 stops
American Airlines Logo
1:00 pm - 7:25 pm
ONT
-
BHD
22h 25m
2 stops
$3,819American Airlines
Sun, Aug 16 - Thu, Sep 3

British Airways flights from Northern Ireland to Ontario

Our best British Airways deals on Northern Ireland to Ontario flight tickets
British Airways
Apr 23
BHD12:45 pmBelfast City
17h 14m
2 stops
ONT9:59 pmOntario
Apr 27
ONT4:52 pmOntario
17h 53m
2 stops
BHD6:45 pmBelfast City
$853
British Airways
Apr 20
BHD11:35 amBelfast City
18h 24m
2 stops
ONT9:59 pmOntario
Apr 27
ONT4:52 pmOntario
17h 53m
2 stops
BHD6:45 pmBelfast City
$861
British Airways
Mar 19
BHD6:35 amBelfast City
24h 24m
2 stops
ONT11:59 pmOntario
Mar 23
ONT6:00 amOntario
21h 40m
2 stops
BHD10:40 amBelfast City
$871

American Airlines flights from Northern Ireland to Ontario

Our best American Airlines deals on Northern Ireland to Ontario flight tickets
American Airlines
Aug 17
BHD3:20 pmBelfast City
35h 05m
2 stops
ONT6:25 pmOntario
Sep 1
ONT2:31 pmOntario
20h 24m
2 stops
BHD6:55 pmBelfast City
$3,548
American Airlines
Aug 17
BHD3:20 pmBelfast City
33h 04m
2 stops
ONT4:24 pmOntario
Sep 3
ONT1:00 pmOntario
22h 25m
2 stops
BHD7:25 pmBelfast City
$3,683
American Airlines
Aug 16
BHD3:50 pmBelfast City
32h 34m
2 stops
ONT4:24 pmOntario
Sep 3
ONT1:00 pmOntario
22h 25m
2 stops
BHD7:25 pmBelfast City
$3,819

momondo Fare Finder

 
Customize your flight search to find flights from Northern Ireland to Ontario 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 832,500 searches. Data last updated March 1, 2026.
Use the filters below to find and compare flights from Northern Ireland to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Thu 4/23

12:45 pm-9:59 pm

2 stops17h 14m

Ontario

Mon 4/27

4:52 pm-6:45 pm

2 stops17h 53m

$853

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Mon 4/20

11:35 am-9:59 pm

2 stops18h 24m

Ontario

Mon 4/27

4:52 pm-6:45 pm

2 stops17h 53m

$861

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Thu 3/19

6:35 am-11:59 pm

2 stops24h 24m

Ontario

Mon 3/23

6:00 am-10:40 am

2 stops21h 40m

$871

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Thu 3/19

6:35 am-11:59 pm

2 stops24h 24m

Ontario

Mon 3/23

10:56 am-4:05 pm

2 stops22h 09m

$945

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Thu 3/19

6:35 am-9:24 pm

2 stops21h 49m

Ontario

Mon 3/23

2:39 pm-4:05 pm

2 stops18h 26m

$969

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Thu 4/23

12:45 pm-9:59 pm

2 stops17h 14m

Ontario

Fri 5/1

4:52 pm-6:10 pm

2 stops17h 18m

$1,030

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Mon 8/17

3:20 pm-6:25 pm

2 stops35h 05m

Ontario

Tue 9/1

2:31 pm-6:55 pm

2 stops20h 24m

$3,548

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Mon 8/17

3:20 pm-4:24 pm

2 stops33h 04m

Ontario

Thu 9/3

1:00 pm-7:25 pm

2 stops22h 25m

$3,683

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Tue 8/18

6:30 am-4:24 pm

2 stops17h 54m

Ontario

Thu 9/3

4:54 pm-6:45 pm

2 stops17h 51m

$3,691

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Sun 8/16

3:50 pm-4:24 pm

2 stops32h 34m

Ontario

Thu 9/3

1:00 pm-7:25 pm

2 stops22h 25m

$3,819

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 resultsSorted by cheapest first
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Cheap Northern Ireland to Ontario flight deals and tips

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

Fastest flight time

18h 24m

Direct flights

None
The fastest flight from Northern Ireland to Ontario takes 18h 24m
There are no direct flights from Northern Ireland to Ontario. There are no popular flight routes from Northern Ireland to Ontario.
Search flight deals

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

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

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

    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 Northern Ireland to Ontario Airport.

  • What documentation or ID do you need to fly to Ontario Airport?

    The necessary travel and health documents for your Ontario Airport 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.

  • How do I get Price Alerts for flights from Northern Ireland to Ontario?

    Price Alerts will notify you by email when the price for flights to Ontario from Northern Ireland decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Northern Ireland to Ontario with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Why use momondo?

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

It is quick and easy to find Northern Ireland to Ontario flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ontario that suits you.

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

momondo does allow users to show only those flights to Ontario from Northern Ireland which offer a flexible booking policy as well as other useful filters and features.

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

momondo helps you find the best flight between Northern Ireland and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Northern Ireland to Ontario flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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