What are the cheapest airlines flying from Belfast Intl Airport to Sydney round-trip?

Qatar Airways, at £496, was found to be the cheapest airline from Belfast Intl Airport to Sydney. An alternate airline flying to your destination would be British Airways.

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?

When flying from Belfast Intl Airport to Sydney, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Sydney Kingsford Smith (SYD), located 4.6 mi from the city center, is the airport you fly into when you book flights from Belfast Intl to Sydney. 2 airlines have flights to Kingsford Smith from Belfast Intl on a regular basis. Booking flights from Belfast Intl to Sydney Kingsford Smith should not be difficult; the airport handles an average of 0 inbound flights from Belfast Intl per day.

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.

£528+ 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.

Cheapest

Best

Last-minute

One-way

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 12 September 2026.

Thu 22/1006:10 -

2 stops28h 15m

Thu 29/1015:15 -

2 stops29h 55m

Deal found 7/9£854

Wed 4/1106:25 -

2 stops26h 55m

Tue 17/1121:30 -

2 stops34h 25m

Deal found 7/9£925

Tue 13/1006:15 -

2 stops41h 45m

Mon 26/1012:00 -

2 stops33h 40m

Deal found 9/9£973

Tue 13/1006:15 -

2 stops41h 45m

Wed 11/1112:00 -

2 stops42h 35m

Deal found 10/9£976

Mon 28/1220:50 -

2 stops47h 30m

Thu 31/1212:00 -

2 stops33h 10m

Deal found 10/9£1,030

Mon 28/1209:55 -

2 stops34h 25m

Mon 18/121:30 -

2 stops32h 40m

Deal found 11/9£1,120

Thu 15/1006:10 -

2 stops41h 50m

Sat 24/1012:00 -

2 stops40h 50m

Deal found 8/9£1,209

Fri 23/1006:05 -

2 stops28h 20m

Fri 30/1015:15 -

2 stops36h 55m

Deal found 8/9£1,248

Tue 29/1222:30 -

2 stops33h 50m

Mon 18/121:30 -

2 stops32h 40m

Deal found 8/9£1,303

Sun 25/1017:10 -

2 stops26h 50m

Sun 1/1121:35 -

2 stops35h 05m

Deal found 10/9£1,334

Find flight deals from Belfast Intl to Sydney

Round-trip from	£854
One-way from	£528

22/10-29/10
4 total stops
58h 10m total
Belfast to Sydney

Search Deals

24/10-31/12
2 total stops
45h 15m 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

Sat 24/10

06:20-13:35

2 stops45h 15m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

£528

Fastest return journey

BelfastSydney

BFS Belfast Intl - SYD Sydney Kingsford Smith

BFSSYD

Belfast Intl

Sun 27/12

06:15-07:20

3 stops38h 05m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

£574

BelfastSydney

BFS Belfast Intl - SYD Sydney Kingsford Smith

BFSSYD

Belfast Intl

Thu 22/10

06:10-20:25

2 stops28h 15m

Sydney Kingsford Smith

Thu 29/10

15:15-10:10

2 stops29h 55m

£854

BelfastSydney

BFS Belfast Intl - SYD Sydney Kingsford Smith

BFSSYD

Belfast Intl

Wed 4/11

06:25-20:20

2 stops26h 55m

Sydney Kingsford Smith

Tue 17/11

21:30-20:55

2 stops34h 25m

£925

BelfastSydney

BFS Belfast Intl - SYD Sydney Kingsford Smith

BFSSYD

Belfast Intl

Tue 13/10

06:15-10:00

2 stops41h 45m

Sydney Kingsford Smith

Mon 26/10

12:00-10:40

2 stops33h 40m

£973

BelfastSydney

BFS Belfast Intl - SYD Sydney Kingsford Smith

BFSSYD

Belfast Intl

Mon 28/12

20:50-07:20

2 stops47h 30m

Sydney Kingsford Smith

Thu 31/12

12:00-10:10

2 stops33h 10m

£1,030

BelfastSydney

BFS Belfast Intl - SYD Sydney Kingsford Smith

BFSSYD

Belfast Intl

Tue 16/2

18:25-22:30

2 stops41h 05m

Sydney Kingsford Smith

Tue 2/3

06:00-10:05

2 stops39h 05m

£1,045

BelfastSydney

BFS Belfast Intl - SYD Sydney Kingsford Smith

BFSSYD

Belfast Intl

Tue 13/10

16:00-13:25

3 stops35h 25m

Sydney Kingsford Smith

Wed 11/11

11:10-18:00

3 stops41h 50m

£1,110

BelfastSydney

BFS Belfast Intl - SYD Sydney Kingsford Smith

BFSSYD

Belfast Intl

Mon 28/12

09:55-07:20

2 stops34h 25m

Sydney Kingsford Smith

Mon 18/1

21:30-19:10

2 stops32h 40m

£1,120

BelfastSydney

BFS Belfast Intl - SYD Sydney Kingsford Smith

BFSSYD

Belfast Intl

Thu 15/10

06:10-10:00

2 stops41h 50m

Sydney Kingsford Smith

Sat 24/10

12:00-18:50

2 stops40h 50m

£1,209

Flights are sorted by cheapest return flights first.

Deals found on 9/9

Showing 1-10 of 13 resultsSorted 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.

Reviews of airlines servicing Sydney

Check out reviews from past customers who have flown with Qatar Airways and British Airways from Belfast Intl Airport to Sydney to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Qatar Airways

7.4

Good

3,733 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Steven,Aug 2026

DOH - BNE

It would be nice if the vegetarian meal option wasn't always tomato pasta. There are great middle eastern and Asian dishes.

Qatar Airways

7.4

Good

3,733 reviews

Qatar Airways

7.4

Good

3,733 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Steven,Aug 2026

DOH - BNE

It would be nice if the vegetarian meal option wasn't always tomato pasta. There are great middle eastern and Asian dishes.

British Airways

6.7

Okay

8,212 reviews

Qatar Airways

7.4

Good

3,733 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Steven,Aug 2026

DOH - BNE

It would be nice if the vegetarian meal option wasn't always tomato pasta. There are great middle eastern and Asian dishes.

Related info for your journey

What airport do you fly into for flights to Sydney from Belfast Intl?
Sydney Kingsford Smith (SYD), located 4.6 mi from the city center, is the airport you fly into when you book flights from Belfast Intl to Sydney. 2 airlines have flights to Kingsford Smith from Belfast Intl on a regular basis. Booking flights from Belfast Intl to Sydney Kingsford Smith should not be difficult; the airport handles an average of 0 inbound flights from Belfast Intl per day.
What are the cheapest airlines flying from Belfast Intl Airport to Sydney round-trip?
Qatar Airways, at £496, was found to be the cheapest airline from Belfast Intl Airport to Sydney. An alternate airline flying to your destination would be British Airways.
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

Wollongong

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Bondi Beach

Coogee

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Alternative routes for Belfast Intl to Sydney

Belfast City to Sydney flights

Belfast City to Coolangatta flights

Top 2 airlines flying from Belfast Intl to Sydney

Airline	Cheapest	Average	Flexibility	On-time
Qatar Airways	Cheapest£496	Average£1,280	FlexibilityNo cancel fee	On-time68%	Search Qatar Airways flights
British Airways	Cheapest£913	Average£1,264	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

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When you search for this flight from Belfast Intl to Sydney, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Belfast Intl to Sydney.

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 £528

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/10. 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 12 September 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 12 September 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 12 September 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 12 September 2026.

Last-minute flights from Belfast Intl to SydneyDiscover last-minute flight deals from Belfast Intl to Sydney. Data last updated 12 September 2026 and is based on user searches.

Discover last-minute flight deals from Belfast Intl to Sydney. Data last updated 12 September 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 12 September 2026.

Search for one-way flight options from Belfast Intl to Sydney. Find affordable one-way fares based on user searches. Data last updated 12 September 2026.

Find flight deals from Belfast Intl to Sydney

Round-trip from

One-way from

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.

Reviews of airlines servicing Sydney

Check out reviews from past customers who have flown with Qatar Airways and British Airways from Belfast Intl Airport to Sydney to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What are the cheapest airlines flying from Belfast Intl Airport to Sydney round-trip?

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

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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 12 September 2026.

Other flights from Belfast Intl

Browse through other flights departing from Belfast Intl. Flights are based on user searches made on Cheapflights and were last updated on 12 September 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 12 September 2026.

Top 2 airlines flying from Belfast Intl to Sydney

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?

100% Free

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 12 September 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 12 September 2026.

Last-minute flights from Belfast Intl to Sydney
Discover last-minute flight deals from Belfast Intl to Sydney. Data last updated 12 September 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 12 September 2026.