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Cheap flights from Belfast to Sydney from $1,821

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 19/7. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — SYD
18 Jun — 25 Jun1
1 adult

Cheap flight deals from Belfast to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Belfast (BF1) to Sydney (SYD). 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 13 June 2025.

Round-trip from

$1,888

One-way from

$1,821

Popular in

July

Cheapest in

October

Average price

$2,369
British Airways
  • British Airways
  • 28/10-2/12
  • 4 total stops
  • 53h 50m total
  • Belfast to Sydney
Search Deals
19/7
  • 19/7
  • 3 total stops
  • 55h 05m total
  • Belfast to Sydney
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($363 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($101 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

Find flight deals from Belfast to Sydney

Cheapest flights from Belfast to Sydney
Explore the most affordable flight options available from Belfast to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Tue 28/1017:10BHD - SYD
2 stops26h 45mBritish Airways
Tue 2/1216:20SYD - BHD
2 stops27h 05mBritish Airways
Deal found 11/6$1,888
Sun 6/717:30BFS - SYD
3 stops31h 40mMultiple Airlines
Sun 13/712:50SYD - BFS
3 stops42h 30mMultiple Airlines
Deal found 10/6$2,100
Tue 28/1011:05BHD - SYD
3 stops32h 50mMultiple Airlines
Tue 2/1216:20SYD - BHD
2 stops27h 05mMultiple Airlines
Deal found 11/6$2,134

Cheapflights Fare Finder

Customise your flight search to find flights from Belfast to Sydney 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 647,157 searches. Data last updated 13 June 2025.
Use the filters below to find and compare flights from Belfast to Sydney that are best for you.

Fly from

Belfast

Fly to

Sydney

Route

Depart

Return

Price

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Tue 28/10

17:10-06:55

2 stops26h 45m

Sydney Kingsford Smith

Tue 2/12

16:20-08:25

2 stops27h 05m

$1,888

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Sun 6/7

17:30-10:10

3 stops31h 40m

Sydney Kingsford Smith

Sun 13/7

12:50-22:20

3 stops42h 30m

$2,100

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Tue 28/10

11:05-06:55

3 stops32h 50m

Sydney Kingsford Smith

Tue 2/12

16:20-08:25

2 stops27h 05m

$2,134

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Sat 19/7

15:15-07:20

3 stops55h 05m

$1,821

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Sat 19/7

15:35-14:55

2 stops38h 20m

$2,659

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Best time to book a flight from Belfast to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Belfast with our price prediction graph.
Estimated return 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 Belfast to Sydney

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

Currently, May is the cheapest month in which you can book a flight from Belfast to Sydney (average of $129). Flying from Belfast to Sydney in October is currently the most expensive (average of $171). 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.

What is the cheapest time of day to fly from BFS to SYD?

Find hourly flight availability from Belfast to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 June 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Belfast to Sydney as you normally would.

Rainfall in Sydney by month

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

In terms of precipitation, rainfall in Sydney ranges from 50.0 - 130.0 inches per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Sydney when rainfall is around 50.0 mm.

Temperature in Sydney by month

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

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 11.0 C).

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated 13 June 2025.
British Airways
6.6
Okay
7,011 reviews
Check prices

Boarding

6.8

Comfort

6.7

Entertainment

6.4

Overall

6.6

Food

6.3

Crew

7.6

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.
British Airways
6.6
Okay
7,011 reviews
British Airways
6.6
Okay
7,011 reviews
Check prices

Boarding

6.8

Comfort

6.7

Entertainment

6.4

Overall

6.6

Food

6.3

Crew

7.6

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.

Related info for your journey

Find useful and relevant information for your journey from Belfast to Sydney. 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 into for flights to Sydney from Belfast?

    Most people fly into Sydney Kingsford Smith (SYD) if they book a flight to Sydney from Belfast. On average, Kingsford Smith has 0 inbound flights from Belfast per day from 1 airline. Sydney Kingsford Smith is conveniently located just 7.5 km from Sydney’s city centre.

  • What is the cheapest airline to fly from Belfast to Sydney round-trip?

    Currently priced at $1,888, British Airways will fly you from Belfast to Sydney and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. British Airways is currently priced 27% below the average price you’ll pay for this route.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Belfast to Sydney 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 Belfast to Sydney?

    Currently, May is the cheapest month in which you can book a flight from Belfast to Sydney (average of $129). Flying from Belfast to Sydney in October is currently the most expensive (average of $171). 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.

See more FAQs

Travelling to a place near Belfast?

Book flights to Belfast if you plan to visit one of these locations
Parramatta
Wollongong
Katoomba
Manly
Penrith
Coogee
Randwick
Cronulla
Terrigal
Lithgow
Bondi Beach
Leura
Swansea

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Belfast to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
Belfast Intl to Sydney flights
Belfast City to Sydney flights

Top airline flying from Belfast to Sydney

Discover the top airline that operate flights from Belfast to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$1,902Average$2,874FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Belfast to Sydney?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Sydney from Belfast today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Belfast to Sydney?

Cheapflights simply makes it quick and affordable to book flights from Belfast to Sydney by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Belfast to Sydney with no change fees?

Yes, we can. To see specific flights from Belfast to Sydney with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Belfast to Sydney become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Sydney from Belfast today and book when prices fit your budget.

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