$810 Find Cheap Flights from Brussels 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 Brussels to Sydney departing on 18/8. 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 Brussels 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 Brussels to Sydney, as well as popular online travel agencies
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Cheap Flights from Brussels to Sydney

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

Thu, 28 Aug - Thu, 4 Sep
 Logo
16:30 - 09:00CRL-SYD
32h 30m3 stops
 Logo
11:00 - 11:40SYD-CRL
32h 40m2 stops
$1,436
Find Deal
Mon, 25 Aug - Mon, 8 Sep
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14:55 - 09:00CRL-SYD
34h 05m3 stops
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12:50 - 12:20SYD-CRL
31h 30m2 stops
$1,560
Find Deal
Mon, 25 Aug - Tue, 9 Sep
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10:25 - 09:20BRU-SYD
38h 55m2 stops
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21:30 - 07:30SYD-BRU
42h 00m1 stop
$1,597
Find Deal
Thu, 28 Aug - Thu, 4 Sep
Hainan Airlines Logo
12:00 - 14:15BRU-SYD
42h 15m2 stops
Hainan Airlines Logo
21:00 - 08:10SYD-BRU
43h 10m2 stops
$1,684Hainan Airlines
Find Deal
Tue, 26 Aug - Tue, 2 Sep
Hainan Airlines Logo
12:00 - 14:15BRU-SYD
42h 15m2 stops
Hainan Airlines Logo
21:00 - 08:10SYD-BRU
43h 10m2 stops
$1,695Hainan Airlines
Find Deal
Tue, 26 Aug - Tue, 2 Sep
Hainan Airlines Logo
12:00 - 14:15BRU-SYD
42h 15m2 stops
Hainan Airlines Logo
21:00 - 08:10SYD-BRU
43h 10m2 stops
$1,699Hainan Airlines
Find Deal
Wed, 3 Sep - Tue, 16 Sep
Etihad Airways Logo
10:55 - 06:10BRU-SYD
35h 15m1 stop
Etihad Airways Logo
21:30 - 07:30SYD-BRU
42h 00m1 stop
$1,765Etihad Airways
Find Deal
Mon, 25 Aug - Mon, 8 Sep
Etihad Airways Logo
10:55 - 06:10BRU-SYD
35h 15m1 stop
Etihad Airways Logo
21:30 - 07:30SYD-BRU
42h 00m1 stop
$1,766Etihad Airways
Find Deal
Mon, 25 Aug - Mon, 8 Sep
Etihad Airways Logo
10:55 - 06:10BRU-SYD
35h 15m1 stop
Etihad Airways Logo
21:30 - 07:30SYD-BRU
42h 00m1 stop
$1,768Etihad Airways
Find Deal
Mon, 8 Sep - Mon, 22 Sep
Etihad Airways Logo
10:55 - 06:10BRU-SYD
35h 15m1 stop
Etihad Airways Logo
21:30 - 07:30SYD-BRU
42h 00m1 stop
$1,779Etihad Airways
Find Deal
Booking Insights

KAYAK's insights & trends for Brussels to Sydney flights

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

How much is a round-trip flight from Brussels to Sydney?

What’s the cheapest day of the week to fly from Brussels to Sydney?

The average price of all round-trip flights from Brussels to Sydney clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Brussels to Sydney, look for departures on Thursdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Sydney, Monday is the cheapest day to fly and Saturday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Brussels 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 Brussels to Sydney is May, where tickets cost $2,064 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is $2,783 and $2,643 respectively.

How far in advance should I book a flight from Brussels to Sydney?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Brussels to Sydney, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Brussels to Sydney, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 1 week before departure.


Good to know

Cheapest flight$810
Flight from Brussels Airport to Sydney

When to book flights from Brussels to Sydney

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

  • What is the cheapest flight from Brussels to Sydney?

    In the last 3 days, the lowest price for a flight from Brussels to Sydney was $522 for a one-way ticket and $925 for a return.

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

    When flying out of Brussels you will be using one of these airports: Brussels Bruxelles-National or Charleroi Brussels. You will be landing at Sydney Kingsford Smith.

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

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

  • Which airline alliances offer flights from Brussels to Sydney?

    Star Alliance is the only airline alliance operating flights between Brussels and Sydney.

  • How does KAYAK find such low prices on flights from Brussels 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 Brussels to Sydney.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney from Brussels 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 Brussels 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 Brussels with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Brussels 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 Brussels up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines flying from Brussels to Sydney

 
See real verified KAYAK customer reviews for airlines flying from Brussels 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 Brussels 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.
7.8
Thai AirwaysOverall score based on 340 reviews
8.3Crew
7.3Food
7.9Boarding
7.5Comfort
6.8Entertainment
Airline reviews

The flight was mostly fine, but I really wished that seats had an outlet to charge devices considering the length of the flight (15 hours there and 14 hours back).

8.0 ExcellentJoe, June 2025TPE - ORD
Read more Thai Airways reviews

The flight was mostly fine, but I really wished that seats had an outlet to charge devices considering the length of the flight (15 hours there and 14 hours back).

Although booked meal of fruit only The crew had not received this special meal The same happened on my flight Bangkok / CAN The films are so old that best is to use own computer to watch downloads . Serve nuts but they do not warm up . Service is attentive , WC clean

Terrible. It’s like they are stuck in the dark ages. I brought a standard carry on suitcase and a back pack - I was told I could only carry on 7kg per bag - in business class, I was forced to remove articles from the suitcase and put them into my backpack! That’s the most ridiculous thing I’ve ever encountered in all my years of flying. The two bags weighed the same amount but one could not be more than 7kg. Holy cow.

They used Thai Smile plane, which is a smaller model and used to service only domestic flights; hence, the plane is small and quite compact. No entertainment on the flight. While boarding was delayed, it was done in a quick manner.

I give EVA 5 stars in every category. I enjoy this airline and it's great team of employees. I always highly recommend EVA to friends and family and everyone.

The flight was delayed going out of the gate at BKK that made it a difficult challenge to get through immigration transfer at tapei and make it to my departure on time. This appears to be a recurring issue. The flight crew and cabin crew were excellent. The food was very nice.

The boarding efficiency was good. A couple of the flight attendants did not seem in the best of moods. Overall it was a good experience.

The setting configuration of the aircraft stinks. Nobody should pay business class fares and be so uncomfortable. The design of facing fellow passengers is a brilliant nincompoop.

Entertainment is limited with a relatively old catalogue. Wi-Fi never works and the cabin and lavatory had evidence of a lot of scuff marks and temporary repairs. Nothing unsafe, but a bit tatty in places.

Delayed flight in Singapore caused the transfer at Bangkok to be very stressful. Fortunately, no elderly were in this trip, else it will not be possible to catch the connecting flight. There were also several occasions throughout the flight journey where some of the passengers were not wearing their seat belts despite several remainders from the stewardess.

It was okay. The airplane was a little smaller than a flight from Thailand to Helsinki.

Wish that everyone would board the back of the plane first. Also let kids on first. The gate wasn’t open at arrival and we waited 45 minutes to takeoff. They made up for time in the air.

This was an absolutely exceptional flight. The flight attendants were extremely attentive and very friendly. They seemed to go out of their way to make us comfortable and to make sure that we had everything we needed., We were in business and were very happy with the size and the details for our pods. We would definitely recommend Finnair and will definitely be flying with them again.

We had an excellent trip with Finnair. This was our first time and we’re very pleased. The only issue was with the boarding - it was a little bit confusing and needs a little bit of streamlining.

Crew very lovely. Arrived an hour late due to bad weather. We were given new tickets to an other flight but it could have been organised better, so we did not have to run through the whole airport to.

Flight delayed over an hour. They said they would hold our connection but then did not.

Major problems checking in at Alaska counter. They could not find our booking code because it came from Finnair.

Do not use KAYAK or Finair for future travel. Unless you purchase the tickets directly from the airline, you were going to have a difficult time checking in. Kayak canceled my flights twice and ended up causing great difficulty in me getting back from Europe because they double sold my tickets between American Airlines and Finair. The event caused significant delays and led to me having to rebook my flights.

Boarding uncomfortable. Stewardess said I would have to check my carry on as there was no room in the overhead bins. Another passenger helped me find a spot.

Any flight that lands safely is a good flight. However our leg from Helsinki was delayed 1 hour with no explanation. The delay would not allow us to make our connection to Cincinnati. I was informed by American Airlines that our Cincinnati flight was rescheduled for the following day. I immediately made a non refundable hotel reservation in Dallas. Upon exiting the plane at Dallas I was given a hotel voucher. Nice, but I can't get a refund on the hotel I booked. A little communication would have been helpful. Food on Finnair is below quality of Korean Air.

A380 First Class Apartments were phenomenal. Comfortable bed and matress cover, superior vegetarian five course meal, shower, small business lounge and plenty of exercise walking around the aircraft.

second leg was more comfortable. Customer service in Abu Dhabi is okay.

Crew Check-In – Kolkata (CCU) The crew handling check-in in Kolkata was outstanding—efficient, courteous, and highly organized. Flight Segment – CCU to Abu Dhabi (AUH) A standard flight overall. Notably, only one in-flight meal option—a vegetarian curry—was available, which seemed unsuitable for a red-eye journey. The crew offered no alternatives, which was unexpected. Flight Segment – Abu Dhabi to Rome (AUH-FCO) Comfort improved on this leg, but service quality was average, falling short of Etihad’s premium standards. Crew attention was heavily absorbed by a difficult couple in Row 15 (port side), resulting in disproportionate focus. It was concerning that a steward had to personally return to apologize, a task better suited for supervisory staff. This highlights a development opportunity for supervisors Anna and Quashim in managing guest escalation professionally.

Certainly! Here’s a more concise and refined version of your report, maintaining a polished and professional tone: --- Crew Check-In – Kolkata (CCU) The crew handling check-in in Kolkata was outstanding—efficient, courteous, and highly organized. Flight Segment – CCU to Abu Dhabi (AUH) A standard flight overall. Notably, only one in-flight meal option—a vegetarian curry—was available, which seemed unsuitable for a red-eye journey. The crew offered no alternatives, which was unexpected. Flight Segment – Abu Dhabi to Rome (AUH-FCO) Comfort improved on this leg, but service quality was average, falling short of Etihad’s premium standards. Crew attention was heavily absorbed by a difficult couple in Row 15 (port side), resulting in disproportionate focus. It was concerning that a steward had to personally return to apologize, a task better suited for supervisory staff. This highlights a development opportunity for supervisors Anna and Quashim in managing guest escalation professionally.

Took a long time for boarding. The flight was comfortable.

we were delayed from Athens to Abu Dhabi by an hour and a half, so I had trouble connecting the flight from there to Bali. It could have been done had they waited even 15 mins. There was another lady who was in the same boat. By the time we were half way across the terminal, they have actually already issued different flights for us to go Jakarta then to Bali. Not to mention the inconvenience of waiting over 4 hrs at the airport and the subsequent inconvenience, we did not arrive to Bali till after 800pm the next day, which means I paid for the hotel for nothing when I could have been there before noon the next day! There was little explanation. It was just as well I needed some assistance getting around, otherwise the 2 of us would have been completely lost! Not going to fly with them again!

The seat was like there is no leg space....there were no proper option for food in the airline. It seemed like the airline was at brink of bankruptcy. The crew was helpful except for a few.

Boarding was efficient, had to check in cabin luggage. Seats were narrow, food was more in quantity, received cabin luggage on the luggage belt which was fine.

Needs better seat for business class. My seat was falling apart. Also no WiFi on that flight

Boarding catastrophic let alone have to claimb the plain rather than using jetway. 5.5 hr delay leaving had to do stop in Lgw for a new crew which further compounded the delay. Connecting flight would not wait and had to pend a night in a hotel. Curiously my seat would not go full flat.

Flight was delayed. Though I checked in with BA live chat three times, our special meals were not provided.

I would like to recognize a crewmember for her above and beyond service. Her name is Emily Milburn. The flight was delayed for more than a couple of hours, as we sat on the tarmac because of a storm in London. I could not connect to the Wi-Fi, which I needed to do to arrange for my follow up flight back to the US. This young lady told me that her cell phone had reception and offered to provide me connection through her phone. I was beyond impressed. Later on the gentleman sitting next to me, could not connect to the charging portal. Emily came back with her personal auxiliary battery and offered to the other passenger. She certainly needs to be recognized by British Airways for going above and beyond what is expected. She was the ultimate professional and very friendly, and I have to admit that, given the delay, the passengers were not the easiest to deal with.

The decided to just remove our booking without telling us. It ended up costing us thousands

Only for BA because we had to get to Edinburgh at a certain time. Baggage lost, late boarding with only one person checking, again, our passports and boarding passes until the despatch controller had to step in to get us away. Will never fly BA again.

The airline was efficient and accommodating to work with though there was a delay. Appreciate the service and smooth experience!

We had airport assistance which was good except at Heraklion it was very difficult to find any staff to ask where to go which proved stressful

We arrived late to London, and consequently were 5 min. late to be allowed through security for our next flight. Even though dozens of people missed the same flight, BA did not radio ahead to hold open security for an extra 5-10 min. to allow people to get on the flight. This caused an additional 6 hour delay in London after waiting over an hour in Customer Service to get rebooked. They did not have enough staff on hand to help people in a timely manner. Not at all happy with the BA's customer care or customer service.

Delayed due to a technical fault, one small bottle of water, no USB charging point Not much to like

Dreadfully long wait for bags at Dublin coming off an already late flight.

The whole experience was very disappointing. Drinks could have been served and offered more frequently. The seats were reasonable but considering I paid for premium economy, I felt cheated. I flew premium economy with Japanese Airlines ANA 5 years ago and their service was by far, superior. We had access to the club lounge, better seats and excellent service. Out of 10, I would rate the experience as 4. Everything felt cheap and the Airbus aircraft are far better and more comfortable

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

Information on your arrival and departure airports

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