$729 Find Cheap Flights from Sydney to Belfast – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sydney to Belfast departing on 26/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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1 adult, Economy, 0 bags

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Everything you should know

Cheapest return fare
$1,749
Multiple Airlines
Mon 21/9Mon 28/9
SYD - BFS • 2 stops
Cheapest one-way flight
$729
Multiple Airlines
Mon 26/10
SYD - BFS • 3 stops
Top airlines
Cheapest • from $1,919 (return)
Best reviews • 6.7 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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Booking Insights
Flight Deals

Cheap Flights from Sydney to Belfast (SYD-BHD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Sydney to Belfast that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Sydney to Belfast

Mon, 21 Sep - Mon, 28 Sep
Multiple Airlines Logo
11:00 - 20:25SYD  Sydney Kingsford Smith-BFS Belfast Intl
42h 25m2 stops Shanghai Pu Dong London Gatwick
Multiple Airlines Logo
06:10 - 09:00BFS  Belfast Intl-SYD Sydney Kingsford Smith
41h 50m2 stops London Gatwick Shanghai Pu Dong
$1,749Multiple Airlines
Thu, 10 Sep - Thu, 17 Sep
Multiple Airlines Logo
11:00 - 19:20SYD  Sydney Kingsford Smith-BFS Belfast Intl
41h 20m2 stops Shanghai Pu Dong London Gatwick
Multiple Airlines Logo
06:10 - 09:00BFS  Belfast Intl-SYD Sydney Kingsford Smith
41h 50m2 stops London Gatwick Shanghai Pu Dong
$1,891Multiple Airlines
Thu, 5 Nov - Mon, 9 Nov
British Airways Logo
16:20 - 10:20SYD  Sydney Kingsford Smith-BHD Belfast City
29h 00m2 stops Singapore Changi London Heathrow
British Airways Logo
09:15 - 06:55BHD  Belfast City-SYD Sydney Kingsford Smith
34h 40m2 stops London Heathrow Singapore Changi
$1,919British Airways
Wed, 4 Nov - Sun, 8 Nov
British Airways Logo
16:20 - 08:15SYD  Sydney Kingsford Smith-BHD Belfast City
26h 55m2 stops Singapore Changi London Heathrow
British Airways Logo
15:10 - 06:55BHD  Belfast City-SYD Sydney Kingsford Smith
28h 45m2 stops London Heathrow Singapore Changi
$1,919British Airways
Thu, 5 Nov - Mon, 9 Nov
British Airways Logo
16:20 - 10:20SYD  Sydney Kingsford Smith-BHD Belfast City
29h 00m2 stops Singapore Changi London Heathrow
British Airways Logo
09:15 - 06:55BHD  Belfast City-SYD Sydney Kingsford Smith
34h 40m2 stops London Heathrow Singapore Changi
$1,925British Airways
Wed, 4 Nov - Sun, 8 Nov
British Airways Logo
16:20 - 08:15SYD  Sydney Kingsford Smith-BHD Belfast City
26h 55m2 stops Singapore Changi London Heathrow
British Airways Logo
15:10 - 06:55BHD  Belfast City-SYD Sydney Kingsford Smith
28h 45m2 stops London Heathrow Singapore Changi
$1,925British Airways
Thu, 5 Nov - Mon, 9 Nov
British Airways Logo
16:20 - 10:20SYD  Sydney Kingsford Smith-BHD Belfast City
29h 00m2 stops Singapore Changi London Heathrow
British Airways Logo
09:15 - 06:55BHD  Belfast City-SYD Sydney Kingsford Smith
34h 40m2 stops London Heathrow Singapore Changi
$1,926British Airways
Wed, 4 Nov - Sun, 8 Nov
British Airways Logo
16:20 - 08:15SYD  Sydney Kingsford Smith-BHD Belfast City
26h 55m2 stops Singapore Changi London Heathrow
British Airways Logo
15:10 - 06:55BHD  Belfast City-SYD Sydney Kingsford Smith
28h 45m2 stops London Heathrow Singapore Changi
$1,926British Airways
Wed, 2 Sep - Wed, 30 Sep
Multiple Airlines Logo
11:00 - 19:40SYD  Sydney Kingsford Smith-BHD Belfast City
41h 40m2 stops Shanghai Pu Dong London Gatwick
Multiple Airlines Logo
14:20 - 09:00BHD  Belfast City-SYD Sydney Kingsford Smith
33h 40m2 stops London Gatwick Shanghai Pu Dong
$1,980Multiple Airlines
Wed, 2 Sep - Wed, 30 Sep
Multiple Airlines Logo
20:30 - 19:40SYD  Sydney Kingsford Smith-BFS Belfast Intl
32h 10m2 stops Shanghai Pu Dong London Gatwick
Multiple Airlines Logo
08:15 - 09:00BFS  Belfast Intl-SYD Sydney Kingsford Smith
39h 45m2 stops London Gatwick Shanghai Pu Dong
$1,983Multiple Airlines
Booking Insights

KAYAK's insights & trends for Sydney to Belfast flights

Get data-powered insights and trends into flights from Sydney to Belfast to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Sydney to Belfast?

The cheapest return price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest return tickets from Sydney to Belfast were found on British Airways ($1,919) and Qatar Airways ($2,572).

Good to know

Cheapest flight

$729
Flight from Sydney to Belfast Intl Airport

When to book flights from Sydney to Belfast

Are your dates flexible? Find out the best times to travel from Sydney to Belfast based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Sydney to Belfast

  • What is the cheapest flight from Sydney to Belfast?

    In the last 5 days, the lowest price for a flight from Sydney to Belfast was $729 for a one-way ticket and $1,712 for a return.

  • Which aircraft models fly most regularly from Sydney to Belfast?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Sydney to Belfast?

    oneworld is the only airline alliance operating flights between Sydney and Belfast.

  • How does KAYAK find such low prices on flights from Sydney to Belfast?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sydney to Belfast.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sydney to Belfast?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast from Sydney is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sydney to Belfast?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Belfast with an airline and back to Sydney with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sydney to Belfast?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Belfast from Sydney up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Sydney to Belfast

 
See real verified KAYAK customer reviews for airlines flying from Sydney to Belfast. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sydney to Belfast? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.7
British AirwaysOverall score based on 8150 reviews
6.8Comfort
7.7Crew
7.0Boarding
6.4Food
6.5Entertainment
Airline reviews

I am very disappointed with the way my seat reservation was handled. My husband and I purchased Business Class tickets and also paid extra to reserve our seats. However, our reserved seats were changed without our consent, and we were assigned different seats, separating us. Since we paid specifically for reserved seats, the airline did not provide the service we purchased. I would therefore like to request a full refund of the seat reservation fees. I would appreciate your prompt response and resolution to this matter. Thank you.

10.0 ExcellentAnonymous, Aug 2026
Read more British Airways reviews

I am very disappointed with the way my seat reservation was handled. My husband and I purchased Business Class tickets and also paid extra to reserve our seats. However, our reserved seats were changed without our consent, and we were assigned different seats, separating us. Since we paid specifically for reserved seats, the airline did not provide the service we purchased. I would therefore like to request a full refund of the seat reservation fees. I would appreciate your prompt response and resolution to this matter. Thank you.

I can't believe you have to pay L 3.20 for a Cup of British tea on an airlines with the name British on the plane.

Long haul flight and was really good. Comfortable plane and seats. Really great service all round and always willing to help. Lovely food and drinks (Tanqueray is my favourite Gin). Media was great and helped for the long journey.

Flight was good but couldn’t sleep because bed was so uncomfortable.

This was the return leg of my trip. Tried to do online check in several times, both on BA App and online but it kept saying " it was not possible, check in at the airport". Got to Airport 3 hours before the flight to be told the flight was overbooked and I was on standby because I hadn't checked in online!!! Was told I could go and wait at the gate in case of a no show but would actually be booked on the next flight in 4 hours. At the gate I did actually get in to the original plane... And had 2 empty seats next to me.. So much for overbooked. To add insult to injury, my baggage did not arrive in LHR and was finally delivered over 24 hours later. I don't travel with BA very often.. This experience will make it even less likely, particularly as my wife had exactly the same issue 2 days later.

The flight was very delayed in taking off - which was out of control of the crew, but then the pilot worked hard so we only arrived about 30 minutes late. Everyone was very friendly and accommodating!

Plane is old. Toilet did not work. Once in Singapore the continuation to London was cancelled.

Flight was canceled with little notice or explanation. There were no other flights to Belfast from Heathrow, so I had to travel across town to London City (or wait until the next day).

In the "old" configuration Club class, in an aisle seat you are literally sleeping in the aisle with no privacy at all. In addition, there is hardly any storage space, and it is hard to make sense of the seat controls.

Everything was excellent, although flight delayed however can’t control that, but what I don’t understand is why the smallest portion of food ie: bit of rice & bit of chicken (no exaggeration) no salad, no veges, nothing else, but cake & icecream later…this is just not a great reflection on the quality of airlines. People spend $1,500 on a flight surely airlines can spend an extra $1 on their passengers meals…even bread & butter can do the trick. ESP on a 8 hour flight! Cutting costs is one thing, but this is just not ok.

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

Information on your arrival and departure airports