SYD

£340 Find Cheap Flights from Belfast to Sydney

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Belfast to Sydney departing on 21/3. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Sydney

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Belfast to Sydney, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Belfast to Sydney, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
£782
Typical prices: £1,184-£1,330
China Southern
Wed 11/3Sun 15/3
BHD - SYD • 2 stops
Cheapest one-way flight
£340
Multiple Airlines
Sat 21/3
BFS - SYD • 3 stops
Top airlines
China Southern
Cheapest • from £782 (return)
Qatar Airways
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Sydney!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Belfast to Sydney

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Belfast to Sydney 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 Belfast to Sydney

Wed, 11 Mar - Sun, 15 Mar
China Southern Logo
11:25 - 09:25
BHD
-
SYD
35h 00m
2 stops
China Southern Logo
22:00 - 18:35
SYD
-
BHD
55h 35m
2 stops
£782China Southern
Wed, 11 Mar - Sun, 15 Mar
China Southern Logo
11:25 - 20:20
BHD
-
SYD
45h 55m
2 stops
China Southern Logo
22:00 - 18:35
SYD
-
BHD
55h 35m
2 stops
£785China Southern
Sat, 7 Mar - Thu, 19 Mar
Multiple Airlines Logo
22:25 - 17:55
BFS
-
SYD
32h 30m
2 stops
Multiple Airlines Logo
08:55 - 09:45
SYD
-
BFS
35h 50m
2 stops
£839Multiple Airlines
Sat, 23 May - Sat, 6 Jun
Multiple Airlines Logo
16:15 - 08:25
BHD
-
SYD
31h 10m
2 stops
Multiple Airlines Logo
21:45 - 17:40
SYD
-
BHD
52h 55m
2 stops
£839Multiple Airlines
Sat, 7 Mar - Thu, 19 Mar
Multiple Airlines Logo
07:55 - 13:35
BFS
-
SYD
42h 40m
3 stops
Multiple Airlines Logo
08:55 - 09:45
SYD
-
BFS
35h 50m
2 stops
£889Multiple Airlines
Thu, 12 Mar - Mon, 16 Mar
China Southern Logo
17:45 - 09:25
BHD
-
SYD
28h 40m
2 stops
China Southern Logo
11:25 - 18:40
SYD
-
BHD
66h 15m
2 stops
£958China Southern
Tue, 7 Apr - Tue, 14 Apr
Multiple Airlines Logo
18:20 - 12:35
BHD
-
SYD
33h 15m
2 stops
Multiple Airlines Logo
21:45 - 12:00
SYD
-
BHD
47h 15m
2 stops
£959Multiple Airlines
Wed, 20 May - Mon, 8 Jun
American Airlines Logo
11:35 - 07:05
BHD
-
SYD
34h 30m
2 stops
American Airlines Logo
09:10 - 17:30
SYD
-
BHD
41h 20m
2 stops
£997American Airlines
Wed, 20 May - Fri, 5 Jun
American Airlines Logo
11:35 - 07:05
BHD
-
SYD
34h 30m
2 stops
American Airlines Logo
17:50 - 18:10
SYD
-
BHD
33h 20m
2 stops
£1,003American Airlines
Sun, 24 May - Mon, 8 Jun
American Airlines Logo
11:00 - 07:05
BHD
-
SYD
35h 05m
2 stops
American Airlines Logo
09:10 - 17:30
SYD
-
BHD
41h 20m
2 stops
£1,098American Airlines
Booking Insights

KAYAK's insights & trends for Belfast to Sydney flights

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

What is the cheapest month to fly from Belfast to Sydney?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Belfast to Sydney, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Belfast to Sydney is October, where tickets cost £1,005 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is £1,495 and £1,463 respectively.

Good to know - Cheap tickets from Belfast to Sydney

Cheapest flight£340
Flight from Belfast Intl Airport to Sydney

When to book flights from Belfast to Sydney

Are your dates flexible? Find out the best times to travel from Belfast to Sydney 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 Belfast to Sydney

  • What is the cheapest flight from Belfast to Sydney?

    In the last 3 days, the lowest price for a flight from Belfast to Sydney was £340 for a one-way ticket and £782 for a return.

  • Which airports will I be using when flying from Belfast to Sydney?

    On your way to Sydney, you’ll fly out from one of these Belfast airports: Belfast Intl or Belfast City. You’ll be landing at Sydney Kingsford Smith.

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

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

  • Which airline alliances offer flights from Belfast to Sydney?

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

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

    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 Belfast to Sydney.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney from Belfast 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 Belfast to Sydney?

    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 Sydney with an airline and back to Belfast with another airline.

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

    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 Sydney from Belfast up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Belfast to Sydney

 
See real verified KAYAK customer reviews for airlines flying from Belfast to Sydney. 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 Belfast to Sydney? 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.
7.4
Qatar AirwaysOverall score based on 3727 reviews
7.9Crew
7.3Food
7.4Entertainment
7.4Comfort
7.5Boarding
Airline reviews

Charged extra amount for the baggage wait. Even it’s less than 23kgs. Those machines are showing wrong weight and they were charging money wantedly from everyone.

2.0 MediocreAnonymous, Jan 2026
HYD - DOH
Read more Qatar Airways reviews

Charged extra amount for the baggage wait. Even it’s less than 23kgs. Those machines are showing wrong weight and they were charging money wantedly from everyone.

In the business class it was everything wonderful. However in the economy is a hell. BTW. When I asked to search for tickets, I ordered business and I was offered options with economy, that was not clear in the order, so I could've acted faster to rectify it.

The seat cushions are absolutely lacking, not sure if they know the passengers are traveling for 14 hours straight, but the padding made our back and butt ache like crazy. The entertainment console had its own problems, either the headphone jack wasn't working or the power outlet via usb or ac outlet was not working. Not to mention the seat handles were not adjustable in some planes in the middle or on the aisle. Qatar/Indigo may be operating a very old fleet of planes to make as much profit as possible, but passengers may not be following them for long, should this treatment of its customers continue. Qatar/Indigo, wake up and do it right by your customers, or they may not be your customers anymore.

Qatar maybe considered one of the best ailines in the world but nowadays it is much of a muchness with the rest

As good as you can expect an economy flight from Europe to Australia to be. Nothing agains Qatar, just feels like every new generation of plane gets tighter.

Crew and food was good, ok leg room if you don’t have a big box under the seat. And the seats are so narrow (I’m only 70kg), will consider an alternate airline next time

Boarding from DOH to SYD the Business Class were pointed in a separate gate but no one there to receive us. Otherwise it was ok.

The flight was delayed and one member of the crew was a bit rude. But apart from that all good.

My flight was delayed. I was rebooked twice and even the second flight that was additional connection in London was delayed too, so I ended up spending more than 24 hours flying between four different countries and to be honest I’m not sure whether I ever want to use this airline again. My luggage is still delete. It’s been more than 48 hours now so to be honest, I’m not even sure how to describe the level of frustration I have.

My entire row did not have power for the full duration of a 14.5 hour flight. Could not charge any devices such as laptop or phones for the entirety of the long flight. The flight attendants tried to remedy the issue by resetting the power, but were not successful. The only other solution provided was to move me to another seat on the plane which was in the middle row. I had paid for a “preferred” seat that was a window seat. This was a downgrade being offered due to the power issue.

It’s the old style plane with the old Ying Yang seats doesn’t compare to other airlines with newer planes.

I was unable to board this flight because of visa changes that I was not alerted about and I’ve been unable to contact Kayak to obtain a refund / credit anything.

Entertainment system didn't work well. Also no new movies and limited choice of other programmes. . And only one USB A charger option. Most modern electronic items needs USB C. Planes should offer both

My touch screen at my seat wasn't working, the films BA advertised on the website for this flight were not available, and the plane was a little dated, food was good and the staff were good, just let down by the aircraft facilities.

The space in the seat was okay, the staff were friendly, the entertainment system, my touch screen was not working and some of the films listed on the website for the flight were not available.

Did not like the seating configuration at all with 2+3+2 in business class. Lacking total privacy and comfort

Check-in experience, for business call please provide a premium experience

Lost my luggage, ran out of food choices in business class, ground crew was completely unapologetic.

Excellent. The crew and flight were great. Checking in was easy and everyone was very helpful.

Late. And service was very slow - passengers sat for well over an hour with dirty trays etc surrounding them

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

Information on your arrival and departure airports