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Cheap flights from Sydney to Belfast from $800

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sydney to Belfast departing on 9/9. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Sydney to Belfast

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:00 - 09:00SYD  Sydney Kingsford Smith-BFS Belfast Intl
55h 00m2 stops Shanghai Pu Dong London Gatwick
Multiple Airlines Logo
17:15 - 09:00BFS  Belfast Intl-SYD Sydney Kingsford Smith
30h 45m2 stops London Gatwick Shanghai Pu Dong
$1,754Multiple Airlines
Thu, 17 Sep - Sun, 27 Sep
Multiple Airlines Logo
11:00 - 22:40SYD  Sydney Kingsford Smith-BFS Belfast Intl
44h 40m2 stops Shanghai Pu Dong London Gatwick
Multiple Airlines Logo
06:20 - 09:00BFS  Belfast Intl-SYD Sydney Kingsford Smith
41h 40m2 stops London Gatwick Shanghai Pu Dong
$1,905Multiple Airlines
Sat, 5 Sep - Sat, 19 Sep
Multiple Airlines Logo
11:00 - 14:00SYD  Sydney Kingsford Smith-BFS Belfast Intl
36h 00m2 stops Shanghai Pu Dong London Gatwick
Multiple Airlines Logo
16:00 - 09:00BFS  Belfast Intl-SYD Sydney Kingsford Smith
32h 00m2 stops London Gatwick Shanghai Pu Dong
$1,913Multiple Airlines
Tue, 8 Sep - Tue, 22 Sep
British Airways Logo
16:20 - 10:55SYD  Sydney Kingsford Smith-BHD Belfast City
29h 35m2 stops Singapore Changi London Heathrow
British Airways Logo
11:40 - 06:55BHD  Belfast City-SYD Sydney Kingsford Smith
32h 15m2 stops London Heathrow Singapore Changi
$1,922British Airways
Thu, 12 Nov - Mon, 16 Nov
British Airways Logo
16:20 - 10:05SYD  Sydney Kingsford Smith-BHD Belfast City
28h 45m2 stops Singapore Changi London Heathrow
British Airways Logo
20:30 - 06:55BHD  Belfast City-SYD Sydney Kingsford Smith
47h 25m2 stops London Heathrow Singapore Changi
$1,922British Airways
Wed, 11 Nov - Sun, 15 Nov
British Airways Logo
16:20 - 10:45SYD  Sydney Kingsford Smith-BHD Belfast City
29h 25m2 stops Singapore Changi London Heathrow
British Airways Logo
06:35 - 06:55BHD  Belfast City-SYD Sydney Kingsford Smith
37h 20m2 stops London Heathrow Singapore Changi
$1,923British Airways
Sun, 8 Nov - Wed, 11 Nov
British Airways Logo
16:20 - 10:05SYD  Sydney Kingsford Smith-BHD Belfast City
28h 45m2 stops Singapore Changi London Heathrow
British Airways Logo
20:30 - 06:55BHD  Belfast City-SYD Sydney Kingsford Smith
47h 25m2 stops London Heathrow Singapore Changi
$1,925British Airways
Wed, 11 Nov - Sun, 15 Nov
British Airways Logo
16:20 - 10:55SYD  Sydney Kingsford Smith-BHD Belfast City
29h 35m2 stops Singapore Changi London Heathrow
British Airways Logo
11:40 - 06:55BHD  Belfast City-SYD Sydney Kingsford Smith
32h 15m2 stops London Heathrow Singapore Changi
$1,925British Airways
Thu, 12 Nov - Mon, 16 Nov
British Airways Logo
16:20 - 10:55SYD  Sydney Kingsford Smith-BHD Belfast City
29h 35m2 stops Singapore Changi London Heathrow
British Airways Logo
11:40 - 06:55BHD  Belfast City-SYD Sydney Kingsford Smith
32h 15m2 stops London Heathrow Singapore Changi
$1,927British Airways
Thu, 12 Nov - Mon, 16 Nov
British Airways Logo
16:20 - 10:05SYD  Sydney Kingsford Smith-BHD Belfast City
28h 45m2 stops Singapore Changi London Heathrow
British Airways Logo
20:30 - 06:55BHD  Belfast City-SYD Sydney Kingsford Smith
47h 25m2 stops London Heathrow Singapore Changi
$1,927British Airways
Wed, 11 Nov - Sun, 15 Nov

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British Airways flights from Sydney to Belfast

Our best British Airways deals on Sydney to Belfast flight tickets
British Airways
11 Nov
SYD16:20Sydney Kingsford Smith
28h 45m
2 stops
BHD10:05Belfast City
15 Nov
BHD20:30Belfast City
47h 25m
2 stops
SYD06:55Sydney Kingsford Smith
$1,922
British Airways
8 Nov
SYD16:20Sydney Kingsford Smith
29h 25m
2 stops
BHD10:45Belfast City
11 Nov
BHD06:35Belfast City
37h 20m
2 stops
SYD06:55Sydney Kingsford Smith
$1,923
British Airways
11 Nov
SYD16:20Sydney Kingsford Smith
28h 45m
2 stops
BHD10:05Belfast City
15 Nov
BHD20:30Belfast City
47h 25m
2 stops
SYD06:55Sydney Kingsford Smith
$1,925

Qatar Airways flights from Sydney to Belfast

Our best Qatar Airways deals on Sydney to Belfast flight tickets
Qatar Airways
7 Sept
SYD14:50Sydney Kingsford Smith
27h 30m
2 stops
BHD09:20Belfast City
28 Sept
BHD19:35Belfast City
50h 00m
2 stops
SYD06:35Sydney Kingsford Smith
$2,634
Qatar Airways
7 Sept
SYD14:50Sydney Kingsford Smith
27h 30m
2 stops
BHD09:20Belfast City
28 Sept
BHD19:35Belfast City
50h 00m
2 stops
SYD06:35Sydney Kingsford Smith
$2,641
Qatar Airways
7 Sept
SYD14:50Sydney Kingsford Smith
27h 30m
2 stops
BHD09:20Belfast City
28 Sept
BHD14:25Belfast City
31h 05m
2 stops
SYD06:30Sydney Kingsford Smith
$2,647

momondo Fare Finder

 
Customise your flight search to find flights from Sydney to Belfast 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 78,305 searches. Data last updated 15 August 2026.
Use the filters below to find and compare flights from Sydney to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneyBelfast

SYD Sydney Kingsford Smith - BFS Belfast Intl

SYDBFS

Sydney Kingsford Smith

Thu 17/9

11:00-09:00

2 stops55h 00m

Belfast Intl

Sun 27/9

17:15-09:00

2 stops30h 45m

$1,754

SydneyBelfast

SYD Sydney Kingsford Smith - BFS Belfast Intl

SYDBFS

Sydney Kingsford Smith

Sat 5/9

11:00-22:40

2 stops44h 40m

Belfast Intl

Sat 19/9

06:20-09:00

2 stops41h 40m

$1,905

SydneyBelfast

SYD Sydney Kingsford Smith - BFS Belfast Intl

SYDBFS

Sydney Kingsford Smith

Tue 8/9

11:00-14:00

2 stops36h 00m

Belfast Intl

Tue 22/9

16:00-09:00

2 stops32h 00m

$1,913
Fastest return journey

SydneyBelfast

SYD Sydney Kingsford Smith - BHD Belfast City

SYDBHD

Sydney Kingsford Smith

Thu 12/11

16:20-10:55

2 stops29h 35m

Belfast City

Mon 16/11

11:40-06:55

2 stops32h 15m

$1,922

SydneyBelfast

SYD Sydney Kingsford Smith - BHD Belfast City

SYDBHD

Sydney Kingsford Smith

Wed 11/11

16:20-10:05

2 stops28h 45m

Belfast City

Sun 15/11

20:30-06:55

2 stops47h 25m

$1,922

SydneyBelfast

SYD Sydney Kingsford Smith - BHD Belfast City

SYDBHD

Sydney Kingsford Smith

Sun 8/11

16:20-10:45

2 stops29h 25m

Belfast City

Wed 11/11

06:35-06:55

2 stops37h 20m

$1,923

SydneyBelfast

SYD Sydney Kingsford Smith - BHD Belfast City

SYDBHD

Sydney Kingsford Smith

Wed 11/11

16:20-10:05

2 stops28h 45m

Belfast City

Sun 15/11

20:30-06:55

2 stops47h 25m

$1,925

SydneyBelfast

SYD Sydney Kingsford Smith - BHD Belfast City

SYDBHD

Sydney Kingsford Smith

Thu 12/11

16:20-10:55

2 stops29h 35m

Belfast City

Mon 16/11

11:40-06:55

2 stops32h 15m

$1,925

SydneyBelfast

SYD Sydney Kingsford Smith - BHD Belfast City

SYDBHD

Sydney Kingsford Smith

Thu 12/11

16:20-10:55

2 stops29h 35m

Belfast City

Mon 16/11

11:40-06:55

2 stops32h 15m

$1,927

SydneyBelfast

SYD Sydney Kingsford Smith - BHD Belfast City

SYDBHD

Sydney Kingsford Smith

Wed 11/11

16:20-10:05

2 stops28h 45m

Belfast City

Sun 15/11

20:30-06:55

2 stops47h 25m

$1,927

Flights are sorted by cheapest return flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

Cheap Sydney to Belfast flight deals and tips

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

Fastest flight time

28h 45m

Direct flights

None
The fastest flight from Sydney to Belfast takes 28h 45m
There are no direct flights from Sydney to Belfast. There are no popular flight routes from Sydney to Belfast.
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Frequently asked questions about flying from Sydney to Belfast

  • How far is Sydney Kingsford Smith to Belfast by plane?

    A flight from Sydney Kingsford Smith to Belfast will travel around 17093.9 km. Typically, this will take 28h 45m by plane in normal conditions.

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

    Prices for flights from Sydney Kingsford Smith Airport to Belfast were last updated today.

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

  • How old do you have to be to fly from Sydney Kingsford Smith Airport to Belfast?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Sydney Kingsford Smith Airport to Belfast.

  • What documentation or ID do you need to fly to Belfast?

    The required travel and health documents for your Belfast trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Belfast. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Sydney to Belfast

Compare and see reviews for airlines that fly from Sydney to Belfast with momondo
Airline
Rating
Free cancellation
Price
British AirwaysPriceFrom $1,725Free cancellationRating
6.7
8,163 reviews
Search British Airways flights

Frequently asked questions about flying from Sydney to Belfast

  • How do I get Price Alerts for flights from Sydney to Belfast?

    Search flight deals from Sydney to Belfast. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Sydney to Belfast with momondo?

    By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Belfast from Sydney.

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

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

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

Once all potential Sydney to Belfast flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

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

An easier way to manage your Belfast trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 19.6 km from Belfast
Belfast Intl Airport
Belfast City Airport