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$745+ Cheap flights from Ontario (ONT) to Belfast

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BHD
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheap flight deals from Ontario to Belfast

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Belfast (BF1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 28, 2025.

Round-trip from

$799
(British Airways)

One-way from

$745
(oojo)

Popular in

June

Cheapest in

November

Average price

$769
From Ontario to Belfast
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One-way flight from Ontario to Belfast
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Highest demand for flights based on searches. 12% potential increase in price ($116 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Ontario to Belfast

Cheapest flights from Ontario to Belfast
Explore the most affordable flight options available from Ontario to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This British Airways deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/254:35 pmONT - BHD
2 stops20h 10mBritish Airways
Fri 5/211:55 amBHD - ONT
2 stops19h 55mBritish Airways
Deal found 3/26$799
This StudentUniverse deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1312:45 pmONT - BHD
2 stops20h 45mMultiple Airlines
Thu 5/224:20 pmBHD - ONT
3 stops37h 38mMultiple Airlines
Deal found 3/26$1,393

Cheapflights Fare Finder

Customize 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, Cheapflights users made 2,558,603 searches. Data last updated March 28, 2025.
Use the filters below to find and compare flights from Ontario to Belfast that are best for you.

Fly from

Ontario

Fly to

Belfast

Route

Depart

Return

Price

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Fri 4/25

4:35 pm-8:45 pm

2 stops20h 10m

Belfast City

Fri 5/2

11:55 am-11:50 pm

2 stops19h 55m

$799

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Tue 5/13

12:45 pm-5:30 pm

2 stops20h 45m

Belfast City

Thu 5/22

4:20 pm-9:58 pm

3 stops37h 38m

$1,393

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Wed 7/2

10:54 am-11:55 am

2 stops17h 01m

$745

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Thu 7/17

2:39 pm-8:45 pm

2 stops22h 06m

$5,483

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Best time to book a flight from Ontario to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Belfast

What is the cheapest month to book a flight from Ontario to Belfast?

Currently, February is the cheapest month in which you can book a flight from Ontario to Belfast (average of $657). Flying from Ontario to Belfast in June is currently the most expensive (average of $1,189). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in Belfast by month

Plan your trip to Belfast by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Belfast ranges from 2.0 - 3.5 inches per month. October is typically the wettest month, when rainfall can reach 3.5 in. April is typically the driest time to visit Belfast when rainfall is around 2.0 in.

Temperature in Belfast by month

Plan your trip to Belfast by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Belfast, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Belfast

Get insights into the airlines that provide service to Belfast. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Belfast. Reviews last updated March 28, 2025.
Iberia
7.0
Good
2,651 reviews

Crew

7.6

Boarding

7.1

Overall

7.0

Food

6.3

Comfort

6.7

Entertainment

6.6

Reviews

1 / 20
10.0
Excellent

Maxim,Feb 2025

BOS - MAD

All Iberia staff with whom we interacted, including the flight crew, were helpful, kind, and professional. The plane looked practically new and was very clean. The seats were comfortable, and there was a lot of legroom in our emergency row seats. Our vegan dinner was quite good (rice with vegetables and grilled tofu, a fresh salad, and fresh fruit), but the breakfast snack seemed unappealing. Overall, this flight from Boston to Madrid was a great value.
Iberia
7.0
Good
2,651 reviews
Iberia
7.0
Good
2,651 reviews

Crew

7.6

Boarding

7.1

Overall

7.0

Food

6.3

Comfort

6.7

Entertainment

6.6

Reviews

1 / 20
10.0
Excellent

Maxim,Feb 2025

BOS - MAD

All Iberia staff with whom we interacted, including the flight crew, were helpful, kind, and professional. The plane looked practically new and was very clean. The seats were comfortable, and there was a lot of legroom in our emergency row seats. Our vegan dinner was quite good (rice with vegetables and grilled tofu, a fresh salad, and fresh fruit), but the breakfast snack seemed unappealing. Overall, this flight from Boston to Madrid was a great value.
British Airways
6.6
Okay
6,712 reviews
Iberia
7.0
Good
2,651 reviews

Crew

7.6

Boarding

7.1

Overall

7.0

Food

6.3

Comfort

6.7

Entertainment

6.6

Reviews

1 / 20
10.0
Excellent

Maxim,Feb 2025

BOS - MAD

All Iberia staff with whom we interacted, including the flight crew, were helpful, kind, and professional. The plane looked practically new and was very clean. The seats were comfortable, and there was a lot of legroom in our emergency row seats. Our vegan dinner was quite good (rice with vegetables and grilled tofu, a fresh salad, and fresh fruit), but the breakfast snack seemed unappealing. Overall, this flight from Boston to Madrid was a great value.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Belfast. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Belfast?

    Ontario (ONT) is the airport you will fly out of if you book a flight from Ontario to Belfast. You should not have trouble finding flights to Belfast from Ontario; the airport handles an average of 0 outbound flights to Belfast per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Ontario airport to Belfast. It is only a 3.1 mi journey to Ontario (ONT) from Ontario’s city center.

  • Can I find deals for flights from Ontario to Belfast that include hotel bookings?

    Yes. In addition to deals on Ontario to Belfast flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Belfast?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Belfast.

  • Can I find deals for business class flights from Ontario to Belfast?

    Yes. Cheapflights offers flight deals from Ontario to Belfast by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Belfast?

    Currently, February is the cheapest month in which you can book a flight from Ontario to Belfast (average of $657). Flying from Ontario to Belfast in June is currently the most expensive (average of $1,189). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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