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.

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).

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

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

What airport do you fly into for flights to Sydney from Belfast Intl?

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

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

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

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

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

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

Yes. Cheapflights offers flight deals from Belfast Intl 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.

$717+ Cheap Flights from Belfast Intl Airport to Sydney

Cheap flight deals from Belfast Intl to Sydney

Enter your travel dates to find the best prices.

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Best

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Cheapest flights from Belfast Intl to Sydney
Explore the most affordable flight options available from Belfast Intl to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 November 2026.

Wed 25/1106:25 -

2 stops40h 35m

Wed 2/1212:00 -

2 stops41h 00m

Deal found 27/10$1,736

Mon 23/1106:20 -

2 stops27h 05m

Sun 6/1215:10 -

2 stops30h 00m

Deal found 28/10$1,780

Thu 29/1020:05 -

2 stops50h 55m

Thu 5/1121:30 -

2 stops34h 00m

Deal found 28/10$2,033

Sun 13/1209:25 -

2 stops34h 55m

Sun 20/1221:30 -

2 stops35h 10m

Deal found 29/10$3,364

Fri 11/1221:10 -

2 stops35h 15m

Fri 18/1221:35 -

2 stops35h 35m

Deal found 27/10$4,004

Find flight deals from Belfast Intl to Sydney

Round-trip from	$1,447
One-way from	$717

17/1-31/1
4 total stops
90h 30m total
Belfast to Sydney

Search Deals

25/11-31/12
3 total stops
57h 45m total
Belfast to Sydney

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Belfast Intl Airport to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastSydney

BFS Belfast Intl - SYD Sydney Kingsford Smith

BFSSYD

Belfast Intl

Wed 25/11

22:05-18:50

3 stops57h 45m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$717

BelfastSydney

BFS Belfast Intl - SYD Sydney Kingsford Smith

BFSSYD

Belfast Intl

Mon 30/11

09:55-07:30

3 stops58h 35m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$786

BelfastSydney

BFS Belfast Intl - SYD Sydney Kingsford Smith

BFSSYD

Belfast Intl

Tue 16/2

08:25-07:20

3 stops59h 55m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$818

Fastest return journey

BelfastSydney

BFS Belfast Intl - SYD Sydney Kingsford Smith

BFSSYD

Belfast Intl

Tue 2/2

16:45-06:50

2 stops27h 05m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$1,412

BelfastSydney

BFS Belfast Intl - SYD Sydney Kingsford Smith

BFSSYD

Belfast Intl

Sun 17/1

21:15-08:05

2 stops47h 50m

Sydney Kingsford Smith

Sun 31/1

10:30-18:10

2 stops42h 40m

$1,447

BelfastSydney

BFS Belfast Intl - SYD Sydney Kingsford Smith

BFSSYD

Belfast Intl

Wed 25/11

06:25-10:00

2 stops40h 35m

Sydney Kingsford Smith

Wed 2/12

12:00-18:00

2 stops41h 00m

$1,736

BelfastSydney

BFS Belfast Intl - SYD Sydney Kingsford Smith

BFSSYD

Belfast Intl

Mon 23/11

08:40-13:20

3 stops41h 40m

Sydney Kingsford Smith

Sun 6/12

21:35-20:10

2 stops33h 35m

$1,939

BelfastSydney

BFS Belfast Intl - SYD Sydney Kingsford Smith

BFSSYD

Belfast Intl

Wed 24/3

14:25-06:50

2 stops29h 25m

Sydney Kingsford Smith

Wed 14/4

20:55-19:35

2 stops31h 40m

$2,069

BelfastSydney

BFS Belfast Intl - SYD Sydney Kingsford Smith

BFSSYD

Belfast Intl

Sun 13/12

09:25-07:20

2 stops34h 55m

Sydney Kingsford Smith

Sun 20/12

21:30-21:40

2 stops35h 10m

$3,364

BelfastSydney

BFS Belfast Intl - SYD Sydney Kingsford Smith

BFSSYD

Belfast Intl

Fri 11/12

21:10-19:25

2 stops35h 15m

Sydney Kingsford Smith

Fri 18/12

21:35-22:10

2 stops35h 35m

$4,004

Flights are sorted by cheapest return flights first.

Deals found on 27/10

Sorted by cheapest first

Best time to book a flight from Belfast Intl to Sydney

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

BFS-SYD

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.

Related info for your journey

What airport do you fly into for flights to Sydney from Belfast Intl?
Most people fly into Sydney Kingsford Smith (SYD) if they book a flight to Sydney from Belfast Intl. On average, Kingsford Smith has 0 inbound flights from Belfast Intl per day from 0 airlines. Sydney Kingsford Smith is conveniently located just 7.5 km from Sydney’s city centre.
Can I find deals for flights from Belfast Intl to Sydney that include hotel bookings?
Yes. In addition to deals on Belfast Intl to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Belfast Intl to Sydney?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast Intl to Sydney.
Can I find deals for business class flights from Belfast Intl to Sydney?
Yes. Cheapflights offers flight deals from Belfast Intl 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.

See more FAQs

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Cheapflights makes it easy to find Belfast Intl to Sydney flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Belfast Intl to Sydney for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Need flexible booking options for your flight to Sydney from Belfast Intl? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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Not ready to book yet? You can track prices for flights from Belfast Intl to Sydney on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from Belfast Intl Airport to Sydney from $717

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Belfast Intl to Sydney

Cheapest flights from Belfast Intl to SydneyExplore the most affordable flight options available from Belfast Intl to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 November 2026.

Explore the most affordable flight options available from Belfast Intl to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 November 2026.

Best flights from Belfast Intl to SydneyDiscover carefully curated flight deals from Belfast Intl to Sydney that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 November 2026.

Discover carefully curated flight deals from Belfast Intl to Sydney that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 November 2026.

Last-minute flights from Belfast Intl to SydneyDiscover last-minute flight deals from Belfast Intl to Sydney. Data last updated 1 November 2026 and is based on user searches.

Discover last-minute flight deals from Belfast Intl to Sydney. Data last updated 1 November 2026 and is based on user searches.

One-way flights from Belfast Intl to SydneySearch for one-way flight options from Belfast Intl to Sydney. Find affordable one-way fares based on user searches. Data last updated 1 November 2026.

Search for one-way flight options from Belfast Intl to Sydney. Find affordable one-way fares based on user searches. Data last updated 1 November 2026.

Find flight deals from Belfast Intl to Sydney

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Belfast Intl Airport to Sydney that are best for you.

Best time to book a flight from Belfast Intl to Sydney

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

Related info for your journey

What airport do you fly into for flights to Sydney from Belfast Intl?

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

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

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

Travelling to a place near Sydney?

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 Intl to Sydney

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Sydney by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to New South Wales

Book a non-stop flight to one of these other cities located in New South Wales.

Search flights from Belfast Intl to Sydney by cabin class

Find flights from Belfast Intl to Sydney, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Belfast Intl and Sydney flights

Browse other Belfast Intl and Sydney flight options. Last updated on 1 November 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Other flights to Sydney

Explore flights to Sydney departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 1 November 2026.

Fly with Cheapflights

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

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

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

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

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Book with flexibility

Travel Smart

Cheapest flights from Belfast Intl to Sydney
Explore the most affordable flight options available from Belfast Intl to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 November 2026.

Best flights from Belfast Intl to Sydney
Discover carefully curated flight deals from Belfast Intl to Sydney that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 November 2026.

Last-minute flights from Belfast Intl to Sydney
Discover last-minute flight deals from Belfast Intl to Sydney. Data last updated 1 November 2026 and is based on user searches.

One-way flights from Belfast Intl to Sydney
Search for one-way flight options from Belfast Intl to Sydney. Find affordable one-way fares based on user searches. Data last updated 1 November 2026.