When did momondo last update prices for flights from Belfast Intl Airport to Sydney Kingsford Smith Airport?

Prices for flights from Belfast Intl Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Belfast Intl Airport to Sydney Kingsford Smith Airport?

The number of operators available for flights from Belfast Intl Airport to Sydney Kingsford Smith Airport is 1 as of August 2025.

How old do you have to be to fly from Belfast Intl Airport to Sydney Kingsford Smith 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 Intl Airport to Sydney Kingsford Smith Airport.

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

The necessary travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

£436 Cheap Flights from Belfast Intl Airport to Sydney (BFS-SYD) in 2025

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Find the cheapest flights from Belfast Intl Airport to Sydney (BFS-SYD)

Round-trip

One-way

Cheap return flights

09:55 - 10:00BFS-SYD

37h 05m2 stops

12:00 - 13:40SYD-BFS

36h 40m2 stops

£1,401

Find Deal

Thu, 18 Dec - Thu, 1 Jan

06:00 - 07:00BFS-SYD

38h 00m2 stops

06:00 - 21:35SYD-BFS

26h 35m2 stops

£1,663

Find Deal

Thu, 4 Dec - Fri, 19 Dec

momondo 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

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Thu 18/12

09:55-10:00

2 stops37h 05m

Sydney Kingsford Smith

Thu 1/1

12:00-13:40

2 stops36h 40m

£1,401

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Thu 4/12

06:00-07:00

2 stops38h 00m

Sydney Kingsford Smith

Fri 19/12

06:00-21:35

2 stops26h 35m

£1,663

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Mon 15/9

12:35-06:10

3 stops56h 35m

£436

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Mon 15/9

10:05-19:25

2 stops48h 20m

£444

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Belfast Intl Airport to Sydney

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 month to fly to Sydney?

In general, November is the cheapest month to fly from Belfast Intl Airport to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £1,090. If you don’t want to visit Sydney in November, then you should wait until April to fly from Belfast Intl Airport, when ticket prices are also cheap, with an average price of £1,095.

What is the cheapest day to depart on your flight to Sydney?

The cheapest day to depart on your flight to Sydney is on a Monday when prices can be found for as low as £1,104. This is often the case because there is less demand to fly during this day of the week. On the other hand, Friday is the most expensive day to depart from Belfast Intl Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £1,395.

What is the cheapest time of day to depart on your flight to Sydney?

According to our data, the cheapest time of day to fly to Sydney is in the afternoon. momondo users have found flights departing from Belfast Intl Airport to Sydney in the afternoon for as low as £1,187. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. At midday is when there is more demand to fly to Sydney, so prices are often more expensive at around £1,520 per ticket.

When to book flights from Belfast Intl Airport to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Belfast Intl Airport to Sydney according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Belfast Intl Airport to Sydney (BFS to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Belfast Intl Airport to Sydney

Direct flights	None

There are no direct flights from Belfast Intl Airport to Sydney. There are no popular flight routes from Belfast Intl Airport to Sydney.

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How far is Belfast Intl to Sydney Kingsford Smith by plane?
The distance between Belfast Intl and Sydney Kingsford Smith is about 10627.1 mi. Flights usually cover this in 37h 05m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Belfast Intl Airport to Sydney Kingsford Smith Airport?
Prices for flights from Belfast Intl Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Belfast Intl Airport to Sydney Kingsford Smith Airport?
The number of operators available for flights from Belfast Intl Airport to Sydney Kingsford Smith Airport is 1 as of August 2025.
How old do you have to be to fly from Belfast Intl Airport to Sydney Kingsford Smith 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 Intl Airport to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The necessary travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Belfast Intl Airport to Sydney?
Based on momondo bookings for flights between Belfast Intl Airport and Sydney, the leading airline is British Airways, making up 100% of the total bookings.

Best airlines flying from Belfast Intl Airport to Sydney

Compare and see reviews for airlines that fly from Belfast Intl Airport to Sydney with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom £1,027	Free Cancellation	Rating 6.7 7,292 reviews		Search British Airways flights

Bondi Beach

Wollongong

Coogee

Manly

Randwick

Penrith

Cronulla

Katoomba

Swansea

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

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

All flight searches from Belfast to Sydney on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Belfast to Sydney.

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

If you are simply researching potential flights to Sydney, momondo offers a useful price alert feature which will track prices for flights to Sydney from Belfast and alert you when they change.