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Cheap flights from Sydney to Belfast from $642

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 27/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Sydney to Belfast

Cheap return flights

Logo
20:40 - 20:30SYD-BHD
34h 50m2 stops
Logo
10:40 - 15:30BHD-SYD
41h 50m2 stops
$1,601
Find Deal
Thu, 6 Nov - Sun, 16 Nov
Logo
21:30 - 20:20SYD-BFS
33h 50m2 stops
Logo
08:55 - 06:35BFS-SYD
34h 40m2 stops
$1,709
Find Deal
Thu, 6 Nov - Sun, 16 Nov
Logo
12:00 - 21:10SYD-BFS
44h 10m2 stops
Logo
06:30 - 13:35BFS-SYD
44h 05m2 stops
$1,714
Find Deal
Mon, 27 Oct - Mon, 3 Nov
Logo
14:20 - 20:30SYD-BHD
41h 10m3 stops
Logo
14:15 - 09:25BHD-SYD
32h 10m2 stops
$1,868
Find Deal
Thu, 6 Nov - Sun, 16 Nov
Logo
08:50 - 09:45SYD-BFS
35h 55m2 stops
Logo
11:00 - 09:25BFS-SYD
35h 25m3 stops
$1,920
Find Deal
Thu, 6 Nov - Sun, 16 Nov
Logo
20:05 - 16:15SYD-BFS
31h 10m3 stops
Logo
16:25 - 07:15BFS-SYD
27h 50m3 stops
$2,274
Find Deal
Mon, 27 Oct - Mon, 3 Nov
KLM Logo
06:35 - 16:50SYD-BHD
45h 15m3 stops
KLM Logo
06:30 - 07:25BHD-SYD
37h 55m3 stops
$2,509KLM
Find Deal
Thu, 6 Nov - Sun, 16 Nov
KLM Logo
14:50 - 21:15SYD-BHD
39h 25m2 stops
KLM Logo
06:30 - 07:25BHD-SYD
38h 55m2 stops
$3,919KLM
Find Deal
Thu, 25 Sep - Sat, 11 Oct
Malaysia Airlines Logo
13:05 - 15:30SYD-BHD
59h 25m2 stops
Malaysia Airlines Logo
19:00 - 07:35BHD-SYD
50h 35m2 stops
$4,101Malaysia Airlines
Find Deal
Thu, 25 Sep - Sat, 11 Oct
KLM Logo
14:50 - 21:15SYD-BHD
39h 25m2 stops
KLM Logo
17:25 - 10:45BHD-SYD
31h 20m3 stops
$4,228KLM
Find Deal
Thu, 25 Sep - Sat, 11 Oct

KLM flights from Sydney to Belfast

Our best KLM deals on Sydney to Belfast flight tickets
KLM
6 Nov
SYD06:35Sydney Kingsford Smith
45h 15m
3 stops
BHD16:50Belfast City
16 Nov
BHD06:30Belfast City
37h 55m
3 stops
SYD07:25Sydney Kingsford Smith
$2,509
Find similar
KLM
25 Sept
SYD14:50Sydney Kingsford Smith
39h 25m
2 stops
BHD21:15Belfast City
11 Oct
BHD06:30Belfast City
38h 55m
2 stops
SYD07:25Sydney Kingsford Smith
$3,919
Find similar
KLM
25 Sept
SYD14:50Sydney Kingsford Smith
39h 25m
2 stops
BHD21:15Belfast City
11 Oct
BHD17:25Belfast City
31h 20m
3 stops
SYD10:45Sydney Kingsford Smith
$4,228
Find similar

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 14 September 2025.
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 - BHD

SYDBHD

Sydney Kingsford Smith

Thu 6/11

20:40-20:30

2 stops34h 50m

Belfast City

Sun 16/11

10:40-15:30

2 stops41h 50m

$1,601

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Thu 6/11

21:30-20:20

2 stops33h 50m

Belfast Intl

Sun 16/11

08:55-06:35

2 stops34h 40m

$1,709

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Mon 27/10

12:00-21:10

2 stops44h 10m

Belfast Intl

Mon 3/11

06:30-13:35

2 stops44h 05m

$1,714

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Thu 6/11

14:20-20:30

3 stops41h 10m

Belfast City

Sun 16/11

14:15-09:25

2 stops32h 10m

$1,868

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Thu 6/11

08:50-09:45

2 stops35h 55m

Belfast Intl

Sun 16/11

11:00-09:25

3 stops35h 25m

$1,920

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Mon 27/10

20:05-16:15

3 stops31h 10m

Belfast Intl

Mon 3/11

16:25-07:15

3 stops27h 50m

$2,274

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Thu 6/11

06:35-16:50

3 stops45h 15m

Belfast City

Sun 16/11

06:30-07:25

3 stops37h 55m

$2,509

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Thu 25/9

14:50-21:15

2 stops39h 25m

Belfast City

Sat 11/10

06:30-07:25

2 stops38h 55m

$3,919

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Thu 25/9

13:05-15:30

2 stops59h 25m

Belfast City

Sat 11/10

19:00-07:35

2 stops50h 35m

$4,101

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Thu 25/9

14:50-21:15

2 stops39h 25m

Belfast City

Sat 11/10

17:25-10:45

3 stops31h 20m

$4,228

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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See travel insights to Belfast from

How to get the cheapest flight ticket from Sydney to Belfast

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 day to depart on your flight to Belfast?

According to our data, Wednesday is the cheapest day to fly to Belfast from Sydney. The lowest ticket price found for a Wednesday departure recently was $2,032. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Belfast on Sunday is $2,400.

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

Our data shows that the cheapest Sydney to Belfast flights are usually those with departure times in the afternoon. Our users have found flights to Belfast in the afternoon for as low as $2,161. Flights to Belfast are more costly in the evening, with an average ticket price of $3,439. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Cheap Sydney to Belfast flight deals and tips

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

Direct flights

None
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 15m 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 $1,734Free cancellationRating
6.6
7,361 reviews
Search British Airways flights

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

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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