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Cheap flights from Sydney to Belfast from $800

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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BHD
14 Sep — 21 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sydney to Belfast

Enter your travel dates to find the best prices.

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 15 August 2026.

Thu 17/911:00 -
2 stops55h 00m
Sun 27/917:15 -
2 stops30h 45m
Deal found 11/8$1,754
Sat 5/911:00 -
2 stops44h 40m
Sat 19/906:20 -
2 stops41h 40m
Deal found 14/8$1,905
Tue 8/911:00 -
2 stops36h 00m
Tue 22/916:00 -
2 stops32h 00m
Deal found 13/8$1,913
Wed 11/1116:20 -
2 stops28h 45m
Sun 15/1120:30 -
2 stops47h 25m
Deal found 13/8$1,922
Sun 8/1116:20 -
2 stops29h 25m
Wed 11/1106:35 -
2 stops37h 20m
Deal found 11/8$1,923
Fri 23/1015:35 -
2 stops39h 00m
Tue 27/1015:05 -
2 stops28h 50m
Deal found 11/8$1,937
Mon 7/911:00 -
2 stops37h 30m
Mon 21/906:10 -
2 stops41h 50m
Deal found 12/8$1,954
Mon 7/911:00 -
2 stops35h 40m
Mon 21/907:00 -
2 stops41h 00m
Deal found 12/8$1,959
Thu 10/911:00 -
2 stops42h 35m
Thu 17/906:10 -
2 stops41h 50m
Deal found 11/8$1,977
Wed 23/920:30 -
2 stops32h 10m
Wed 30/906:10 -
2 stops45h 25m
Deal found 12/8$2,261
Mon 28/914:35 -
2 stops31h 20m
Mon 29/319:35 -
2 stops49h 30m
Deal found 14/8$2,381
Mon 7/910:05 -
2 stops67h 30m
Mon 28/909:40 -
2 stops48h 45m
Deal found 11/8$2,495

Find 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 15 August 2026.

Round-trip from

$1,754

One-way from

$800
17/9-27/9
  • 17/9-27/9
  • 4 total stops
  • 85h 45m total
  • Sydney to Belfast
Search Deals
9/9
  • 9/9
  • 2 total stops
  • 53h 45m total
  • Sydney to Belfast
Search Deals

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 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

Fri 23/10

15:35-20:35

2 stops39h 00m

Belfast City

Tue 27/10

15:05-06:55

2 stops28h 50m

$1,937

SydneyBelfast

SYD Sydney Kingsford Smith - BFS Belfast Intl

SYDBFS

Sydney Kingsford Smith

Mon 7/9

11:00-15:30

2 stops37h 30m

Belfast Intl

Mon 21/9

06:10-09:00

2 stops41h 50m

$1,954

SydneyBelfast

SYD Sydney Kingsford Smith - BHD Belfast City

SYDBHD

Sydney Kingsford Smith

Mon 7/9

11:00-13:40

2 stops35h 40m

Belfast City

Mon 21/9

07:00-09:00

2 stops41h 00m

$1,959

SydneyBelfast

SYD Sydney Kingsford Smith - BFS Belfast Intl

SYDBFS

Sydney Kingsford Smith

Thu 10/9

11:00-20:35

2 stops42h 35m

Belfast Intl

Thu 17/9

06:10-09:00

2 stops41h 50m

$1,977

Flights are sorted by cheapest return flights first.

Deals found on 11/8

Showing 1-10 of 15 resultsSorted by cheapest first
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

No data available for this route at this time. Please check back soon.

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 15 August 2026.
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.
British Airways
6.7
Okay
8,163 reviews
Check prices

Crew

7.7

Comfort

6.8

Entertainment

6.5

Food

6.4

Overall

6.7

Boarding

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2026

BUD - LHR

We had an absolute nightmare experience with British Airways. Check in was bad. They “lost” our business class seats that I selected a long time ago. Our luggage almost didn’t make it on the plane in London to LAX. Flight attendant was rude!! Not that it should matter but she thought bc of the seat assignment issue we were “upgraded” and that’s we had no choice in meals. Not that the meals were any good anyway.
British Airways
6.7
Okay
8,163 reviews
British Airways
6.7
Okay
8,163 reviews
Check prices

Crew

7.7

Comfort

6.8

Entertainment

6.5

Food

6.4

Overall

6.7

Boarding

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2026

BUD - LHR

We had an absolute nightmare experience with British Airways. Check in was bad. They “lost” our business class seats that I selected a long time ago. Our luggage almost didn’t make it on the plane in London to LAX. Flight attendant was rude!! Not that it should matter but she thought bc of the seat assignment issue we were “upgraded” and that’s we had no choice in meals. Not that the meals were any good anyway.

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 29h 35m. 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 $1,725, was found to be the cheapest airline from Sydney to Belfast..

  • 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

Browse thousands of different options on Cheapflights for your next trip

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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.
Sydney to Belfast Intl flights
Sydney to Belfast City flights

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 15 August 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$1,725Average$2,180FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Sydney to Belfast. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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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