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Cheap flights from Belfast Intl Airport to Sydney from £466

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Belfast Intl Airport to Sydney departing on 22/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Belfast Intl Airport to Sydney

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
06:30 - 10:15BFS-SYD
40h 45m3 stops
Multiple Airlines Logo
16:30 - 21:50SYD-BFS
40h 20m3 stops
£954Multiple Airlines
Find Deal
Tue, 2 Dec - Tue, 9 Dec
Multiple Airlines Logo
06:30 - 10:00BFS-SYD
40h 30m2 stops
Multiple Airlines Logo
21:30 - 21:50SYD-BFS
35h 20m2 stops
£973Multiple Airlines
Find Deal
Tue, 2 Dec - Tue, 9 Dec
Multiple Airlines Logo
10:35 - 10:00BFS-SYD
36h 25m2 stops
Multiple Airlines Logo
21:30 - 08:00SYD-BFS
45h 30m2 stops
£1,142Multiple Airlines
Find Deal
Sat, 6 Dec - Sat, 13 Dec
Multiple Airlines Logo
13:55 - 07:00BFS-SYD
30h 05m2 stops
Multiple Airlines Logo
16:30 - 21:50SYD-BFS
40h 20m3 stops
£1,151Multiple Airlines
Find Deal
Tue, 2 Dec - Tue, 9 Dec
Multiple Airlines Logo
06:00 - 15:30BFS-SYD
46h 30m3 stops
Multiple Airlines Logo
17:35 - 17:40SYD-BFS
35h 05m3 stops
£1,228Multiple Airlines
Find Deal
Sat, 6 Dec - Sat, 13 Dec
Multiple Airlines Logo
10:35 - 22:30BFS-SYD
24h 55m2 stops
Multiple Airlines Logo
17:35 - 17:40SYD-BFS
35h 05m3 stops
£1,564Multiple Airlines
Find Deal
Sat, 6 Dec - Sat, 13 Dec

momondo Fare Finder

 
Customise your flight search to find flights from Belfast Intl Airport 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, momondo users made 279,928 searches. Data last updated 22 October 2025.
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

Tue 2/12

06:30-10:15

3 stops40h 45m

Sydney Kingsford Smith

Tue 9/12

16:30-21:50

3 stops40h 20m

£954

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Tue 2/12

06:30-10:00

2 stops40h 30m

Sydney Kingsford Smith

Tue 9/12

21:30-21:50

2 stops35h 20m

£973

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Sat 6/12

10:35-10:00

2 stops36h 25m

Sydney Kingsford Smith

Sat 13/12

21:30-08:00

2 stops45h 30m

£1,142

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Tue 2/12

13:55-07:00

2 stops30h 05m

Sydney Kingsford Smith

Tue 9/12

16:30-21:50

3 stops40h 20m

£1,151

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Sat 6/12

06:00-15:30

3 stops46h 30m

Sydney Kingsford Smith

Sat 13/12

17:35-17:40

3 stops35h 05m

£1,228

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Sat 6/12

10:35-22:30

2 stops24h 55m

Sydney Kingsford Smith

Sat 13/12

17:35-17:40

3 stops35h 05m

£1,564

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Sat 22/11

10:35-10:00

2 stops60h 25m

£466

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Sat 22/11

08:10-20:20

3 stops49h 10m

£505

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to Sydney from

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 typical price of a round-trip flight between Belfast Intl Airport and Sydney?

What is the cheapest month to fly to Sydney?

In general, October 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 £1,070. If you don’t want to visit Sydney in October, then you should wait until November to fly from Belfast Intl Airport, when ticket prices are also cheap, with an average price of £1,075.

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 £1,109. 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 £1,402.

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 £1,192. 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 £1,527 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 24h 55m, 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?

  • 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?

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 AirwaysPriceFrom £1,024Free CancellationRating
6.7
7,466 reviews
Search British Airways flights

Travelling to a place near Sydney?

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

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Belfast to Sydney . Millions of users trust and use momondo every year so you are in good hands.

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.

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