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Cheap flights from Sydney to Belfast from $529

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 25/1. 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

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Find the cheapest flights from Sydney to Belfast

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
21:15 - 21:10
SYD
-
BFS
34h 55m
3 stops
Multiple Airlines Logo
20:55 - 19:20
BFS
-
SYD
35h 25m
3 stops
$1,398Multiple Airlines
Mon, 2 Mar - Mon, 9 Mar
Multiple Airlines Logo
12:30 - 16:10
SYD
-
BFS
38h 40m
3 stops
Multiple Airlines Logo
06:30 - 10:05
BFS
-
SYD
40h 35m
3 stops
$1,654Multiple Airlines
Wed, 4 Mar - Wed, 11 Mar
Multiple Airlines Logo
16:35 - 20:20
SYD
-
BFS
38h 45m
2 stops
Multiple Airlines Logo
08:20 - 06:35
BFS
-
SYD
35h 15m
2 stops
$1,669Multiple Airlines
Wed, 4 Mar - Wed, 11 Mar
Multiple Airlines Logo
12:30 - 16:10
SYD
-
BFS
38h 40m
3 stops
Multiple Airlines Logo
07:55 - 06:35
BFS
-
SYD
35h 40m
2 stops
$1,779Multiple Airlines
Wed, 4 Mar - Wed, 11 Mar
Multiple Airlines Logo
16:35 - 08:55
SYD
-
BFS
27h 20m
2 stops
Multiple Airlines Logo
08:35 - 10:05
BFS
-
SYD
38h 30m
3 stops
$1,818Multiple Airlines
Mon, 2 Mar - Mon, 9 Mar
Multiple Airlines Logo
21:50 - 21:55
SYD
-
BFS
35h 05m
3 stops
Multiple Airlines Logo
14:45 - 13:35
BFS
-
SYD
35h 50m
2 stops
$1,823Multiple Airlines
Sun, 1 Mar - Sun, 8 Mar
Multiple Airlines Logo
16:35 - 09:45
SYD
-
BFS
28h 10m
2 stops
Multiple Airlines Logo
07:50 - 06:35
BFS
-
SYD
35h 45m
2 stops
$1,900Multiple Airlines
Mon, 2 Mar - Mon, 9 Mar
Multiple Airlines Logo
06:00 - 22:20
SYD
-
BFS
27h 20m
2 stops
Multiple Airlines Logo
05:45 - 22:30
BFS
-
SYD
29h 45m
2 stops
$1,903Multiple Airlines
Sun, 1 Mar - Sun, 8 Mar
British Airways Logo
07:40 - 12:00
SYD
-
BHD
37h 20m
2 stops
British Airways Logo
20:10 - 06:05
BHD
-
SYD
48h 55m
2 stops
$2,021British Airways
Wed, 6 May - Sun, 10 May
British Airways Logo
14:05 - 08:50
SYD
-
BHD
27h 45m
2 stops
British Airways Logo
19:10 - 06:05
BHD
-
SYD
49h 55m
2 stops
$2,068British Airways
Wed, 6 May - Sun, 10 May

KLM flights from Sydney to Belfast

Our best KLM deals on Sydney to Belfast flight tickets
KLM
28 May
SYD13:05Sydney Kingsford Smith
29h 15m
2 stops
BHD09:20Belfast City
24 June
BHD17:30Belfast City
31h 30m
2 stops
SYD10:00Sydney Kingsford Smith
$3,035
KLM
26 May
SYD13:05Sydney Kingsford Smith
29h 15m
2 stops
BHD09:20Belfast City
23 June
BHD17:30Belfast City
28h 00m
3 stops
SYD06:30Sydney Kingsford Smith
$3,123
KLM
24 May
SYD08:25Sydney Kingsford Smith
33h 55m
2 stops
BHD09:20Belfast City
24 June
BHD17:30Belfast City
28h 00m
3 stops
SYD06:30Sydney Kingsford Smith
$3,143

American Airlines flights from Sydney to Belfast

Our best American Airlines deals on Sydney to Belfast flight tickets
American Airlines
25 May
SYD09:10Sydney Kingsford Smith
36h 45m
2 stops
BHD12:55Belfast City
25 June
BHD06:35Belfast City
39h 30m
2 stops
SYD07:05Sydney Kingsford Smith
$3,835
American Airlines
29 May
SYD09:10Sydney Kingsford Smith
39h 20m
2 stops
BHD15:30Belfast City
25 June
BHD06:35Belfast City
39h 30m
2 stops
SYD07:05Sydney Kingsford Smith
$3,884
American Airlines
25 May
SYD09:10Sydney Kingsford Smith
36h 45m
3 stops
BHD12:55Belfast City
24 June
BHD10:00Belfast City
60h 05m
2 stops
SYD07:05Sydney Kingsford Smith
$3,896

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 18 January 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

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Mon 2/3

21:15-21:10

3 stops34h 55m

Belfast Intl

Mon 9/3

20:55-19:20

3 stops35h 25m

$1,398

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Wed 4/3

12:30-16:10

3 stops38h 40m

Belfast Intl

Wed 11/3

06:30-10:05

3 stops40h 35m

$1,654

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Wed 4/3

16:35-20:20

2 stops38h 45m

Belfast Intl

Wed 11/3

08:20-06:35

2 stops35h 15m

$1,669

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Wed 4/3

12:30-16:10

3 stops38h 40m

Belfast Intl

Wed 11/3

07:55-06:35

2 stops35h 40m

$1,779

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Mon 2/3

16:35-08:55

2 stops27h 20m

Belfast Intl

Mon 9/3

08:35-10:05

3 stops38h 30m

$1,818

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Sun 1/3

21:50-21:55

3 stops35h 05m

Belfast Intl

Sun 8/3

14:45-13:35

2 stops35h 50m

$1,823

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Mon 2/3

16:35-09:45

2 stops28h 10m

Belfast Intl

Mon 9/3

07:50-06:35

2 stops35h 45m

$1,900

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Sun 1/3

06:00-22:20

2 stops27h 20m

Belfast Intl

Sun 8/3

05:45-22:30

2 stops29h 45m

$1,903

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Wed 6/5

07:40-12:00

2 stops37h 20m

Belfast City

Sun 10/5

20:10-06:05

2 stops48h 55m

$2,021

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Wed 6/5

14:05-08:50

2 stops27h 45m

Belfast City

Sun 10/5

19:10-06:05

2 stops49h 55m

$2,068

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

27h 45m

Direct flights

None
The fastest flight from Sydney to Belfast takes 27h 45m
There are no direct flights from Sydney to Belfast. There are no popular flight routes from Sydney to Belfast.
Search flight deals

  • 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 27h 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 $1,853Free cancellationRating
6.7
7,687 reviews
Search British Airways flights

  • 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