Cheap flights from Sydney to Belfast from $710

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BHD
24 Aug — 31 Aug1
1 adult

Cheap flight deals from Sydney to Belfast

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Belfast (BF1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 19 August 2025.

Round-trip from

$2,070

One-way from

$710

Popular in

December

Cheapest in

June

Average price

$2,186
30/11-23/12
  • 30/11-23/12
  • 4 total stops
  • 83h 10m total
  • Sydney to Belfast
15/10
  • 15/10
  • 3 total stops
  • 42h 10m total
  • Sydney to Belfast
Highest demand for flights based on searches. 23% potential increase in price ($1,132 potential increase over avg. return price).
Cheapest flight prices on average. 7% potential price decrease ($264 potential savings vs. average return price).
Average for round-trip flights in August 2025

Find flight deals from Sydney to Belfast

Cheapest flights from Sydney to Belfast
Explore the most affordable flight options available from Sydney to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 August 2025.

Sun 30/1112:00SYD - BFS
2 stops33h 05mMultiple Airlines
Tue 23/1220:55BFS - SYD
2 stops50h 05mMultiple Airlines
Deal found 19/8$2,070
Sun 30/1116:20SYD - BHD
2 stops27h 05mBritish Airways
Tue 23/1215:05BHD - SYD
2 stops28h 50mBritish Airways
Deal found 19/8$2,075
Wed 10/912:50SYD - BFS
3 stops42h 10mMultiple Airlines
Wed 17/908:15BFS - SYD
3 stops38h 05mMultiple Airlines
Deal found 17/8$2,095
Sat 29/1115:15SYD - BFS
2 stops30h 40mMultiple Airlines
Tue 23/1217:30BFS - SYD
2 stops53h 20mMultiple Airlines
Deal found 19/8$2,241
Sun 30/1116:20SYD - BHD
3 stops39h 40mMultiple Airlines
Tue 23/1211:25BHD - SYD
2 stops32h 30mMultiple Airlines
Deal found 19/8$2,293
Fri 3/1011:00SYD - BFS
2 stops42h 05mMultiple Airlines
Fri 10/1006:05BFS - SYD
2 stops41h 55mMultiple Airlines
Deal found 19/8$2,301
Tue 30/1216:20SYD - BHD
2 stops30h 10mBritish Airways
Tue 20/111:25BHD - SYD
2 stops32h 30mBritish Airways
Deal found 19/8$2,515
Thu 2/1020:10SYD - BFS
2 stops34h 30mMultiple Airlines
Thu 9/1008:10BFS - SYD
2 stops48h 10mMultiple Airlines
Deal found 17/8$2,522
Tue 30/1216:20SYD - BHD
2 stops30h 10mMultiple Airlines
Tue 20/111:05BHD - SYD
3 stops32h 50mMultiple Airlines
Deal found 19/8$2,754
Thu 25/914:40SYD - BHD
2 stops29h 30mBritish Airways
Sat 11/1016:15BHD - SYD
2 stops28h 55mBritish Airways
Deal found 17/8$2,950
Sun 30/1106:35SYD - BHD
3 stops45h 15mKLM
Tue 23/1206:30BHD - SYD
3 stops37h 55mKLM
Deal found 19/8$3,085
Thu 25/914:40SYD - BHD
2 stops29h 30mMultiple Airlines
Sat 11/1010:15BHD - SYD
3 stops34h 05mMultiple Airlines
Deal found 17/8$3,574

Cheapflights 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, Cheapflights users made 647,157 searches. Data last updated 19 August 2025.
Use the filters below to find and compare flights from Sydney to Belfast that are best for you.

Fly from

Sydney

Fly to

Belfast

Route

Depart

Return

Price

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Sun 30/11

12:00-10:05

2 stops33h 05m

Belfast Intl

Tue 23/12

20:55-10:00

2 stops50h 05m

$2,070

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Sun 30/11

16:20-08:25

2 stops27h 05m

Belfast City

Tue 23/12

15:05-06:55

2 stops28h 50m

$2,075

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Wed 10/9

12:50-22:00

3 stops42h 10m

Belfast Intl

Wed 17/9

08:15-07:20

3 stops38h 05m

$2,095

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Sat 29/11

15:15-10:55

2 stops30h 40m

Belfast Intl

Tue 23/12

17:30-09:50

2 stops53h 20m

$2,241

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Sun 30/11

16:20-21:00

3 stops39h 40m

Belfast City

Tue 23/12

11:25-06:55

2 stops32h 30m

$2,293

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Fri 3/10

11:00-20:05

2 stops42h 05m

Belfast Intl

Fri 10/10

06:05-10:00

2 stops41h 55m

$2,301

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Tue 30/12

16:20-11:30

2 stops30h 10m

Belfast City

Tue 20/1

11:25-06:55

2 stops32h 30m

$2,515

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Thu 2/10

20:10-21:40

2 stops34h 30m

Belfast Intl

Thu 9/10

08:10-18:20

2 stops48h 10m

$2,522

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Tue 30/12

16:20-10:30

2 stops29h 10m

Belfast City

Tue 20/1

11:05-06:55

3 stops32h 50m

$2,754

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Thu 25/9

14:40-11:10

2 stops29h 30m

Belfast City

Sat 11/10

16:15-07:10

2 stops28h 55m

$2,950

Flights are sorted by cheapest return flights first.

Deals found on 18/8

Showing 1-10 of 18 results
1
2

Best time to book a flight from Sydney to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from Sydney with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Sydney to Belfast

What is the cheapest time of day to fly from SYD to BFS?

Find hourly flight availability from Sydney to Belfast. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 August 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 43% on flights from Sydney to Belfast by exploring options for tickets at midday.

How much does it cost for a return flight from Sydney to Belfast?

Reviews of airlines servicing Belfast

Get insights into the airlines that provide service to Belfast. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Belfast. Reviews last updated 19 August 2025.
Read through reviews of airlines operating flights from Sydney to Belfast, such as British Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Overall

6.7

Boarding

6.9

Comfort

6.7

Entertainment

6.4

Food

6.3

Crew

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,May 2025

ACC - LGW

The flight was excellent , the crew were friendly and efficient , the entertainment on screen made a long (although not a long haul flight) very pleasing the meals and wine and fruit juice were very satisfying all in all a great experience

Overall

6.7

Boarding

6.9

Comfort

6.7

Entertainment

6.4

Food

6.3

Crew

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,May 2025

ACC - LGW

The flight was excellent , the crew were friendly and efficient , the entertainment on screen made a long (although not a long haul flight) very pleasing the meals and wine and fruit juice were very satisfying all in all a great experience

Related info for your journey

Find useful and relevant information for your journey from Sydney to Belfast. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from Sydney to Belfast?

    Sydney Kingsford Smith (SYD), located 7.5 km from the city centre, is the airport you fly out of when you book flights from Sydney to Belfast. 1 airline have flights from Kingsford Smith to Belfast on a regular basis. Booking flights from Sydney Kingsford Smith to Belfast should not be difficult; the airport handles an average of 0 outbound flights to Belfast per day.

  • How long is the flight from Sydney to Belfast?

    Departing from Sydney to Belfast will take you 27h 05m. The distance between Sydney and Belfast is about 17094 km.

  • What is the cheapest airline to fly from Sydney to Belfast round-trip?

    British Airways, at $1,773, was found to be the cheapest airline from Sydney to Belfast.. British Airways is 26% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Sydney to Belfast that include hotel bookings?

    Yes. In addition to deals on Sydney to Belfast flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sydney to Belfast?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to Belfast.

  • Can I find deals for business class flights from Sydney to Belfast?

    Yes. Cheapflights offers flight deals from Sydney to Belfast by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Sydney to Belfast

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Sydney to Belfast

Discover the top airline that operate flights from Sydney to Belfast. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 19 August 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$1,773Average$2,212FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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How does Cheapflights help users find flights from Sydney to Belfast?

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Why should you use Cheapflights to find cheap flight tickets from Sydney to Belfast?

Cheapflights helps you find that perfect flight to Belfast from Sydney by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Sydney to Belfast with no change fees?

Yes! Cheapflights helps users easily find flights from Sydney to Belfast with no change fees.

Can Cheapflights notify me if prices for flights from Sydney to Belfast become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Belfast from Sydney today and book when prices fit your budget.

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