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Cheap flights from Belfast Intl Airport to Sydney from £815

This is the cheapest return 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 1/6. 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
06:10 - 12:35
BFS
-
SYD
45h 25m
2 stops
Multiple Airlines Logo
11:00 - 20:15
SYD
-
BFS
42h 15m
2 stops
£815Multiple Airlines
Mon, 1 Jun - Sun, 7 Jun
Multiple Airlines Logo
14:35 - 09:00
BFS
-
SYD
33h 25m
2 stops
Multiple Airlines Logo
20:30 - 20:15
SYD
-
BFS
32h 45m
2 stops
£1,028Multiple Airlines
Wed, 20 May - Mon, 8 Jun
Multiple Airlines Logo
06:15 - 09:00
BFS
-
SYD
41h 45m
2 stops
Multiple Airlines Logo
20:30 - 22:25
SYD
-
BFS
34h 55m
2 stops
£1,038Multiple Airlines
Tue, 9 Jun - Tue, 30 Jun
Multiple Airlines Logo
06:20 - 12:35
BFS
-
SYD
45h 15m
2 stops
Multiple Airlines Logo
11:00 - 23:25
SYD
-
BFS
45h 25m
2 stops
£1,095Multiple Airlines
Sat, 6 Jun - Sat, 13 Jun
Multiple Airlines Logo
16:00 - 06:05
BFS
-
SYD
29h 05m
2 stops
Multiple Airlines Logo
06:00 - 07:30
SYD
-
BFS
34h 30m
2 stops
£1,250Multiple Airlines
Tue, 9 Jun - Tue, 30 Jun
Multiple Airlines Logo
15:35 - 16:00
BFS
-
SYD
39h 25m
2 stops
Multiple Airlines Logo
11:00 - 20:15
SYD
-
BFS
42h 15m
2 stops
£1,376Multiple Airlines
Mon, 1 Jun - Sun, 7 Jun
Multiple Airlines Logo
14:45 - 16:00
BFS
-
SYD
40h 15m
2 stops
Multiple Airlines Logo
09:15 - 22:25
SYD
-
BFS
46h 10m
3 stops
£1,719Multiple Airlines
Tue, 9 Jun - Tue, 30 Jun
Multiple Airlines Logo
18:35 - 16:00
BFS
-
SYD
36h 25m
2 stops
Multiple Airlines Logo
20:30 - 07:40
SYD
-
BFS
44h 10m
2 stops
£1,748Multiple Airlines
Fri, 12 Jun - Sun, 21 Jun
Multiple Airlines Logo
22:30 - 19:10
BFS
-
SYD
35h 40m
3 stops
Multiple Airlines Logo
14:00 - 10:40
SYD
-
BFS
29h 40m
2 stops
£2,037Multiple Airlines
Tue, 9 Jun - Tue, 30 Jun

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 13 May 2026.
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 - SYD

BFSSYD

Belfast Intl

Mon 1/6

06:10-12:35

2 stops45h 25m

Sydney Kingsford Smith

Sun 7/6

11:00-20:15

2 stops42h 15m

£815

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Wed 20/5

14:35-09:00

2 stops33h 25m

Sydney Kingsford Smith

Mon 8/6

20:30-20:15

2 stops32h 45m

£1,028

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Tue 9/6

06:15-09:00

2 stops41h 45m

Sydney Kingsford Smith

Tue 30/6

20:30-22:25

2 stops34h 55m

£1,038

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Sat 6/6

06:20-12:35

2 stops45h 15m

Sydney Kingsford Smith

Sat 13/6

11:00-23:25

2 stops45h 25m

£1,095
Fastest return journey

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Tue 9/6

16:00-06:05

2 stops29h 05m

Sydney Kingsford Smith

Tue 30/6

06:00-07:30

2 stops34h 30m

£1,250

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Mon 1/6

15:35-16:00

2 stops39h 25m

Sydney Kingsford Smith

Sun 7/6

11:00-20:15

2 stops42h 15m

£1,376

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Tue 9/6

14:45-16:00

2 stops40h 15m

Sydney Kingsford Smith

Tue 30/6

09:15-22:25

3 stops46h 10m

£1,719

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Fri 12/6

18:35-16:00

2 stops36h 25m

Sydney Kingsford Smith

Sun 21/6

20:30-07:40

2 stops44h 10m

£1,748

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Tue 9/6

22:30-19:10

3 stops35h 40m

Sydney Kingsford Smith

Tue 30/6

14:00-10:40

2 stops29h 40m

£2,037

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 £0. If you don’t want to visit Sydney in October, then you should wait until April to fly from Belfast Intl Airport, when ticket prices are also cheap, with an average price of £0.

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

Fastest flight time

33h 25m

Direct flights

None
The fastest flight from Belfast Intl Airport to Sydney takes 33h 25m
There are no direct flights from Belfast Intl Airport to Sydney. There are no popular flight routes from Belfast Intl Airport to Sydney.
Search flight deals

Frequently asked questions about flying from Belfast Intl Airport to Sydney

  • 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 33h 25m, 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
Qatar AirwaysPriceFrom £495Free CancellationRating
7.4
3,728 reviews
Search Qatar Airways flights
British AirwaysPriceFrom £918Free CancellationRating
6.7
7,979 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
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Katoomba
Penrith
Cronulla
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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