$742 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 15/5. 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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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 Flight Deals 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.

Recent return flight deals from Brussels to Sydney

KAYAK's recommended return flight deals from the most popular airlines that fly from Brussels to Sydney.
Discover the best prices for you by selecting your travel dates on KAYAK.
 Logo
18:00 - 10:10CRL-SYD
32h 10m3 stops
 Logo
12:50 - 20:15SYD-CRL
39h 25m2 stops
$1,602
Find Deal
Sun, 25 May - Tue, 10 Jun
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16:10 - 11:35BRU-SYD
35h 25m3 stops
 Logo
12:50 - 14:40SYD-BRU
33h 50m3 stops
$1,610
Find Deal
Thu, 22 May - Wed, 4 Jun
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13:20 - 08:10BRU-SYD
34h 50m2 stops
 Logo
12:50 - 13:05SYD-BRU
32h 15m2 stops
$1,651
Find Deal
Sun, 25 May - Tue, 10 Jun
Hainan Airlines Logo
12:00 - 14:15BRU-SYD
42h 15m2 stops
Hainan Airlines Logo
21:00 - 06:50SYD-BRU
41h 50m2 stops
$1,780Hainan Airlines
Find Deal
Thu, 22 May - Thu, 5 Jun
British Airways Logo
14:50 - 05:20BRU-SYD
30h 30m2 stops
British Airways Logo
14:40 - 14:05SYD-BRU
31h 25m2 stops
$1,902British Airways
Find Deal
Thu, 22 May - Wed, 4 Jun
British Airways Logo
14:55 - 05:20BRU-SYD
30h 25m2 stops
British Airways Logo
14:40 - 09:55SYD-BRU
27h 15m2 stops
$1,927British Airways
Find Deal
Fri, 16 May - Tue, 20 May
Thai Airways Logo
13:30 - 10:20BRU-SYD
36h 50m1 stop
Thai Airways Logo
10:00 - 07:40SYD-BRU
29h 40m1 stop
$2,213Thai Airways
Find Deal
Thu, 22 May - Wed, 4 Jun
Thai Airways Logo
13:30 - 20:30BRU-SYD
23h 00m1 stop
Thai Airways Logo
10:00 - 07:40SYD-BRU
29h 40m1 stop
$2,227Thai Airways
Find Deal
Thu, 22 May - Thu, 5 Jun
Finnair Logo
11:40 - 09:15BRU-SYD
36h 35m2 stops
Finnair Logo
10:20 - 09:25SYD-BRU
57h 05m2 stops
$2,246Finnair
Find Deal
Thu, 16 Oct - Sat, 8 Nov
Finnair Logo
19:05 - 09:15BRU-SYD
29h 10m2 stops
Finnair Logo
10:20 - 09:25SYD-BRU
57h 05m2 stops
$2,354Finnair
Find Deal
Sun, 19 Oct - Sat, 8 Nov
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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.

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 $2,077 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is $2,815 and $2,707 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 26 weeks before departure.


Good to know

Cheapest flight$742
Flight from Charleroi Brussels 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 $475 for a one-way ticket and $1,025 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, oneworld, and SkyTeam are the airline alliances operating flights between Brussels and Sydney, with oneworld being the most commonly used for this route.

  • 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.

Top 3 airlines serving 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.
7.7
Thai AirwaysOverall score based on 325 reviews
7.5Comfort
7.8Boarding
6.8Entertainment
7.3Food
8.3Crew
Airline reviews

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.

6.0 GoodAnonymous, Apr 2025BKK - DPS
Read more Thai Airways reviews

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.

USB charging port was not working at my seat 48K.

I enjoy flying with Thai Airways, however their B788 business class configuration is quite dated. Additionally , while the service is always friendly and efficient, I’m getting tired of the same “usual suspects” when it comes to food choices. Since it was a lunchtime flight, what about some gourmet sandwiches or some type of salad dish for the main course? The entertainment options are also quite limited and this is not unique to TG, so much so that given the short duration of the flight I ended up not bothering with any entertainment. Finally, despite signs around the cabin advising wifi available, I was unable to con-net and in fact I’ve never been able to connect on any TG flight over the last year or so - what’s the go here??

Always liked Thai Airways but in the past they have been very expensive, not being a millionaire just yet, I will use cheaper airlines. Bangkok to London £370 11 hours 45 mins. Old plane but ok. Lovely ladies on board, very polite. Food was ok. Will always use them if the price is right.

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.

The cabin crew really looked like they wanted to be somewhere else. They weren't really interested in providing an attentive service to full fare paying passengers at all. However the Captiain's in flight announcements were relaxed and very entertaining.

Crew were professional and responsive. Food was mediocre and breakfast could do with revampinmg

Food was very ordinary for premium economy, very small portions.

i dont know WHY they call it business class. the seats are NOT significantly wider than economy seats, they just do not let the middle seats be beepked to give the illusion of more space between passengers. the seats do NOT recline any more than economy seats either. the only real difference is the full meal served to business (vs none for economy). I would rather have a wider, lie flat ACTUAL business class seat with no food for a 3 hr flight. this was pretty disappointing to say the least.

There wore nice leather like sits, in my opinion seats lay out bit tight . Crew was great they did averything possible to make averywone comfortable as possible, food was, think worst I ever head on flight, head chicken and yellow rice. Ice cream was a nic treat.

Our previous flight was delayed but they waited for us to board.

Flight was delayed, short time connection to next flight but we make it, service was good, worth to fly just to try thair on board blueberry juce. Eccelent communication with airline.

My American Airlines flight was deleted and you guys never let me know

The boarding process was quite loud and chaotic. The flight attendants kept barking over the PA system about people needing to only stow large items in the overhead bins. During the one and only service, I was hit by the service cart. At the same time, a passenger was returning from the bathroom and the crew definitely saw him but stopped a few seats short of allowing him to sit down before starting service and made him wait a good 10 minutes before passing his seat and allowing him to sit down, after which he had to ask for his snack and beverage or he would have been passed over. Neither flight attendant thanked passengers as they left; in fact, I did not see them again once the plane door was opened.

Flight was delayed and there was boarding pass and flight information errors resulting in confusion and stress

It was a short flight but everything was great! I would fly with British Airways again.

Seating is tight if you don’t upgrade. Food was decent. Boarding and unboarding was efficient. Smooth flight. Could make upgrades more affordable

Gate closed way too early - over 1 hour before departure. Put onto next flight. Ticket had been changed without notifying us.

Much better than from Singapore to London, which was awful. London to ORD was business class experience expected. Friendly and helpful flight attendants, decent main course, delicious dessert, comfortable lay flat private seats.

I have nothing but amazing things to say about every staff member I encounter on my transport from Brussels (Bru) to New York (jfk) via London (lhr) after many flight delays and changes every colleague I asked for help gave me the utmost respect and did everything in their power to make sure I arrived in Washington DC to make it in time for my brothers wedding. The flight attendants on the flight from Bru to lhr move me to the front of the plane so I could get off quickly and try to make it to my connection to dc, when I missed that wagans at the support desk did everything in his power to get me to dc via two transfers. Especially during the busy holiday season I am so so grateful for the amazing customer service that I encountered today.

The seats are incredibly uncomfortable. My luggage didn't make it on my flight from London to Nashville.

British Airways keeps canceling our flights. They have lost my trust in using their services again. I understand rescheduling once but twice? I am now arriving at home 36 hours later than the first flight that I booked.

British Airways did a great job and the entire crew was punctual and polite; dignified and delightful!

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

Information on your arrival and departure airports

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