BFS - SYD

£742 Find Cheap Flights from Belfast Intl Airport to Sydney

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from Belfast Intl to Sydney departing on 2/3. 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

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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Flight Deals

Cheap Flights from Belfast Intl to Sydney (BFS-SYD)

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

Mon, 2 Mar - Mon, 23 Mar
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10:20 - 10:00BFS-SYD
36h 40m2 stops
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12:00 - 10:05SYD-BFS
33h 05m2 stops
Sun, 1 Feb - Sun, 15 Feb
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15:45 - 18:50BFS-SYD
40h 05m2 stops
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15:50 - 12:50SYD-BFS
32h 00m2 stops
£1,295
Find Deal
Fri, 3 Oct - Mon, 6 Oct
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08:25 - 08:00BFS-SYD
38h 35m3 stops
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13:50 - 23:00SYD-BFS
43h 10m3 stops
£1,298
Find Deal
Fri, 3 Oct - Mon, 6 Oct
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08:25 - 19:25BFS-SYD
26h 00m2 stops
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13:50 - 23:00SYD-BFS
43h 10m3 stops
£1,350
Find Deal
Fri, 24 Oct - Fri, 31 Oct
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06:05 - 20:25BFS-SYD
28h 20m2 stops
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16:35 - 13:45SYD-BFS
32h 10m3 stops
£1,367
Find Deal
Fri, 3 Oct - Mon, 6 Oct
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06:05 - 19:25BFS-SYD
28h 20m2 stops
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16:40 - 11:20SYD-BFS
28h 40m2 stops
£1,392
Find Deal
Fri, 24 Oct - Fri, 31 Oct
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07:05 - 21:30BFS-SYD
28h 25m3 stops
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15:35 - 12:10SYD-BFS
31h 35m3 stops
£1,868
Find Deal
Fri, 24 Oct - Fri, 31 Oct
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14:55 - 07:05BFS-SYD
30h 10m2 stops
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06:00 - 22:35SYD-BFS
27h 35m2 stops
£2,052
Find Deal

Everything you should know

When to travel
November
Cheapest • 12% price drop
March
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
£742
Overall average: £1,178
Multi-carrier
Mon 2/3Mon 23/3
BFS - SYD • 2 stops
Cheapest one-way flight
Multiple Airlines
Fri 12/9
BFS - SYD • multi-stop
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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!
Booking Insights

KAYAK's insights & trends for Belfast Intl to Sydney flights

Get data-powered insights and trends into flights from Belfast Intl 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 Intl Airport to Sydney?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Belfast Intl Airport 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 Intl Airport to Sydney is November, where tickets cost £1,082 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is £1,513 and £1,502 respectively.

Good to know - Cheap tickets from Belfast Intl Airport to Sydney

Low seasonAugust
Cheapest flight£742
Best time to beat the crowds but there is an average 12% increase in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Belfast Intl Airport to Sydney

When to book flights from Belfast Intl to Sydney

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

  • What is the cheapest flight from Belfast Intl Airport to Sydney?

    In the last 3 days, the lowest price for a flight from Belfast Intl Airport to Sydney was £1,005 for a return ticket.

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

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

  • Which is the best airline for flights from Belfast to Sydney, Qatar Airways or British Airways?

    The two airlines most popular with KAYAK users for flights from Belfast to Sydney are Qatar Airways and British Airways. With an average price for the route of £1,168 and an overall rating of 7.4, Qatar Airways is the most popular choice. British Airways is also a great choice for the route, with an average price of £1,177 and an overall rating of 6.6.

  • How does KAYAK find such low prices on flights from Belfast Intl Airport 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 Intl Airport to Sydney.

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

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

  • What is the Hacker Fare option on flights from Belfast Intl Airport 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 Intl Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Belfast Intl Airport 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 Intl Airport 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 Intl 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 Intl 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 3624 reviews
7.4Comfort
7.4Entertainment
7.3Food
7.9Crew
7.5Boarding
Airline reviews

I wish the leg room was better for Economy especially for the outbound flights to India . The outbound flight to US and Qatar was good

8.0 ExcellentAnonymous, Sept 2025COK - DOH
Read more Qatar Airways reviews

I wish the leg room was better for Economy especially for the outbound flights to India . The outbound flight to US and Qatar was good

Terrible experience resolving missed connection after flight was delayed. 3 hour queue at transit desk, not enough staff, no organisation, worst ever flying experience.

Our male flight attendant was top notch - wish I could remember his name. Boarding is never fun when I have to ride the shuttle to the middle of the tarmac and pull my carry on bags up the stairs to my seat. My knees are banged up and my shoulders give me pain, so the flight started off poorly. The seat leg rests don’t recline completely so that makes is difficult if not dangerous to get in and out of the middle seats. The entertainment system touch screens prevented one from seeing the options. They are old and the software needs to be updated. I was on six planes in the last two weeks and able to see the flight progress without any stress. Couldn’t watch anything else. I do like Qatar Airways, just not a fan of a few things.

There was not enough food for everybody. Some dishes were missing.

Wasn’t allowed to continue with the purchased tickets because I hadn’t been able to go on the first scheduled leg.

The rows of seats in economy class are seriously close to one another making eating and resting just about impossible - there is hardly any legroom. Anyone larger than average size would have an incredibly uncomfortable flight. I had to basically share my seat with the lady passenger next to me as she was too big to fit into her allotted seat.

Food was good, attendants were friendly. Seats were not comfortable. Did not receive any amenities such as eyemask or earplugs that would have helped sleep. Additionally a large group of passengers boarded very late into boarding and were a disruption for almost the whole flight. Flight attendants did their best but the kids were making so much noise, kicking seats, and half the time no adult was sat with them so they weren’t being managed.

Operated by American Airlines. Very chaotic and the crew was bit rough responding any enquiries. Restricted leg space.. Qatar would have been better

For a short flight, Qatar Airways offers very good onboard service.

Just happy I flew Qatar Airways awesome no wonder they are #1 in the world right now! The food was just delicious, very courteous, professional crew.

what would have been better would have been that my booking not been canceled by the system and had I been informed that the booking had been cancelled by the system I could have immediately rebooked and not found out that there was an issue when I was told by the system that I needed to book in. It would have also been good if either the booking agent or BA or anyone been in anyway useful. In the end I had to rebook a flight at an additional cost of $350. So no I'm not impressed by BA any of the other parties involved.

we had to walk up stairs to get into the plane--no jetways. Perhaps that's a problem not with the airline but with facilities at Heathrow, Glasgow, and Edinburgh. But it was inconvenient.

Boarding was poor. Why are first class passengers not boarded first?! Bus to the plane and then held on a packed bus because we were waiting for people on the bus before to finish boarding. Seat belt on the fist clas seat is very uncomfortable, cutting into your neck. Other than that crew, seating and food were all excellent. Entertainment, as usual - rubbish.

The flight was fine but no food available apart from snacks like Pringles and olives which was a problem for me as I hadn’t eaten anything that day. But the worst problem was BA left 24 suitcases in Heathrow as the flight was too full but didn’t tell anyone. So we waited for ages at Toulouse airport with no information and finally found out from the one member of staff in the baggage collection area who explained what had happened and apologised for no announcement being made but said that was their policy. Then BA contacted me today to say they have found my luggage and can deliver it to me on Tuesday - half way through my holiday!!!! So a friend has had to make a four hour round trip in his car to go and collect the luggage from the airport so we can get it today. A TOTAL SHAMBLES AND DISREGARD BY BA FOR THEIR PASSENGERS’ BEST INTERESTS.

Much much better than my previous times on British Airways the food was spot-on and the service was really genuine and attentive

Flight was delayed but my previous flight was as well so It worked to my advantage. This was my first time in first class. I don't think they ever stopped feeding us. The seating area was very spacious and comfortable. The attendants were wonderful, warm, friendly and very personable.

Flight was excellent, staff was great. My first time in first class and it was very relaxing and comfortable.

First time on BA but will fly with them from now on! Everything about the flight was superb!!!

Horrible experience. They broke the handle of my checked in suitcase and then refused pay for damages

We had a pretty good experience. Enjoyed both the flights. Crew was very good and helpful.

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

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