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Cheap flights from Belfast to Los Angeles from $759

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Belfast to Los Angeles departing on 12/2. 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
1 adult, Economy, 0 bags

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Find the cheapest flights from Belfast to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
6:35 am - 10:19 pm
BHD
-
ONT
23h 44m
2 stops
British Airways Logo
6:00 am - 1:55 pm
ONT
-
BHD
23h 55m
2 stops
$759British Airways
Wed, Dec 2 - Sun, Dec 6
British Airways Logo
9:15 am - 10:19 pm
BHD
-
ONT
21h 04m
2 stops
British Airways Logo
2:56 pm - 6:40 pm
ONT
-
BHD
19h 44m
2 stops
$763British Airways
Wed, Dec 2 - Sun, Dec 6
British Airways Logo
11:25 am - 10:00 pm
BHD
-
ONT
18h 35m
2 stops
British Airways Logo
12:46 pm - 4:50 pm
ONT
-
BHD
20h 04m
2 stops
$765British Airways
Wed, Dec 2 - Sun, Dec 6
British Airways Logo
11:25 am - 10:00 pm
BHD
-
ONT
18h 35m
2 stops
British Airways Logo
12:46 pm - 4:50 pm
ONT
-
BHD
20h 04m
2 stops
$882British Airways
Wed, Dec 2 - Sun, Dec 6
British Airways Logo
11:05 am - 9:59 pm
BHD
-
ONT
18h 54m
2 stops
British Airways Logo
4:47 pm - 4:45 pm
ONT
-
BHD
15h 58m
2 stops
$899British Airways
Thu, Nov 5 - Sat, Nov 21
Virgin Atlantic Logo
9:50 am - 10:40 pm
BHD
-
ONT
20h 50m
2 stops
Virgin Atlantic Logo
11:44 am - 4:55 pm
ONT
-
BHD
21h 11m
2 stops
$1,244Virgin Atlantic
Tue, Sep 15 - Thu, Oct 1
KLM Logo
10:05 am - 11:49 pm
BHD
-
ONT
21h 44m
2 stops
KLM Logo
7:05 am - 4:55 pm
ONT
-
BHD
25h 50m
2 stops
$8,423KLM
Mon, Jun 22 - Sun, Jun 28

British Airways flights from Belfast to Ontario

Our best British Airways deals on Belfast to Ontario flight tickets
British Airways
Dec 2
BHD6:35 amBelfast City
23h 44m
2 stops
ONT10:19 pmOntario
Dec 6
ONT6:00 amOntario
23h 55m
2 stops
BHD1:55 pmBelfast City
$759
British Airways
Dec 2
BHD9:15 amBelfast City
21h 04m
2 stops
ONT10:19 pmOntario
Dec 6
ONT2:56 pmOntario
19h 44m
2 stops
BHD6:40 pmBelfast City
$763
British Airways
Dec 2
BHD11:25 amBelfast City
18h 35m
2 stops
ONT10:00 pmOntario
Dec 6
ONT12:46 pmOntario
20h 04m
2 stops
BHD4:50 pmBelfast City
$765

momondo Fare Finder

 
Customize your flight search to find flights from Belfast 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 June 7, 2026.
Use the filters below to find and compare flights from Belfast to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Wed 12/2

6:35 am-10:19 pm

2 stops23h 44m

Ontario

Sun 12/6

6:00 am-1:55 pm

2 stops23h 55m

$759

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Wed 12/2

9:15 am-10:19 pm

2 stops21h 04m

Ontario

Sun 12/6

2:56 pm-6:40 pm

2 stops19h 44m

$763

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Wed 12/2

11:25 am-10:00 pm

2 stops18h 35m

Ontario

Sun 12/6

12:46 pm-4:50 pm

2 stops20h 04m

$765

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Wed 12/2

11:25 am-10:00 pm

2 stops18h 35m

Ontario

Sun 12/6

12:46 pm-4:50 pm

2 stops20h 04m

$882
Quickest round-trip

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Thu 11/5

11:05 am-9:59 pm

2 stops18h 54m

Ontario

Sat 11/21

4:47 pm-4:45 pm

2 stops15h 58m

$899

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Tue 9/15

9:50 am-10:40 pm

2 stops20h 50m

Ontario

Thu 10/1

11:44 am-4:55 pm

2 stops21h 11m

$1,244

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Mon 6/22

10:05 am-11:49 pm

2 stops21h 44m

Ontario

Sun 6/28

7:05 am-4:55 pm

2 stops25h 50m

$8,423
Cheapest one-way

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Sun 8/9

6:30 am-10:59 pm

2 stops24h 29m

$764
Quickest one-way

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Mon 7/27

9:40 am-7:59 pm

2 stops18h 19m

$1,553

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Los Angeles from

How to get the cheapest flight ticket from Belfast to Ontario

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 Belfast to Ontario?

British Airways is the most popular carrier operating from Belfast to Ontario

Cheap Belfast to Ontario flight deals and tips

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

Fastest flight time

23h 44m

Direct flights

None
The fastest flight from Belfast to Ontario takes 23h 44m
There are no direct flights from Belfast to Ontario. There are no popular flight routes from Belfast to Ontario.
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Frequently asked questions about flying from Belfast to Ontario

  • How far is Belfast to Ontario by plane?

    A flight from Belfast to Ontario will travel around 5095.8 mi. By plane, this route typically takes 23h 44m.

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

    Prices for flights from Belfast to Ontario Airport are updated daily.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Belfast to Ontario Airport.

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

    The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Belfast to Ontario. Millions of users trust and use momondo every year so you are in good hands.

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

Flights from Belfast to Ontario with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ontario from Belfast.

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

Of course. momondo tracks the price of Belfast 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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