$678 Find Cheap Flights from Brussels to Sydney – 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 Brussels to Sydney departing on 23/9. 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

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Everything you should know

Cheapest return fare
$1,601
Typical prices: $1,899-$2,357
Multiple Airlines
Thu 27/8Thu 3/9
BRU - SYD • 2 stops
Cheapest one-way flight
$678
Typical prices: $850-$1,373
Etihad Airways
Wed 23/9
BRU - SYD • 1 stop
Top airlines
Cheapest • from $1,735 (return)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 15% compared to booking last minute.
Insights
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Flight Deals

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, 27 Aug - Thu, 3 Sep
Multiple Airlines Logo
13:25 - 06:15
BRU
-
SYD
32h 50m
2 stops
Multiple Airlines Logo
19:40 - 06:45
SYD
-
BRU
43h 05m
1 stop
$1,601Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Multiple Airlines Logo
13:25 - 06:15
BRU
-
SYD
32h 50m
2 stops
Multiple Airlines Logo
19:40 - 06:45
SYD
-
BRU
43h 05m
1 stop
$1,666Multiple Airlines
Sun, 6 Sep - Mon, 21 Sep
Multiple Airlines Logo
21:40 - 16:50
BRU
-
SYD
35h 10m
2 stops
Multiple Airlines Logo
20:50 - 07:05
SYD
-
BRU
42h 15m
1 stop
$1,716Multiple Airlines
Mon, 21 Sep - Tue, 6 Oct
Etihad Airways Logo
10:55 - 16:50
BRU
-
SYD
21h 55m
1 stop
Etihad Airways Logo
21:35 - 07:05
SYD
-
BRU
42h 30m
1 stop
$1,735Etihad Airways
Mon, 21 Sep - Tue, 6 Oct
Etihad Airways Logo
10:55 - 16:50
BRU
-
SYD
21h 55m
1 stop
Etihad Airways Logo
21:35 - 07:05
SYD
-
BRU
42h 30m
1 stop
$1,737Etihad Airways
Mon, 21 Sep - Tue, 6 Oct
Etihad Airways Logo
10:55 - 16:50
BRU
-
SYD
21h 55m
1 stop
Etihad Airways Logo
21:35 - 07:05
SYD
-
BRU
42h 30m
1 stop
$1,749Etihad Airways
Mon, 21 Sep - Tue, 6 Oct
Multiple Airlines Logo
12:10 - 08:00
BRU
-
SYD
35h 50m
3 stops
Multiple Airlines Logo
21:35 - 07:05
SYD
-
BRU
42h 30m
1 stop
$1,769Multiple Airlines
Sat, 29 Aug - Fri, 18 Sep
Thai Airways Logo
13:30 - 20:30
BRU
-
SYD
23h 00m
1 stop
Thai Airways Logo
14:35 - 07:15
SYD
-
BRU
24h 40m
1 stop
$2,365Thai Airways
Sat, 29 Aug - Fri, 18 Sep
Thai Airways Logo
13:30 - 20:30
BRU
-
SYD
23h 00m
1 stop
Thai Airways Logo
14:35 - 07:15
SYD
-
BRU
24h 40m
1 stop
$2,493Thai Airways
Sat, 29 Aug - Fri, 18 Sep
Thai Airways Logo
13:30 - 20:30
BRU
-
SYD
23h 00m
1 stop
Thai Airways Logo
14:35 - 07:15
SYD
-
BRU
24h 40m
1 stop
$2,497Thai Airways
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 return flight from Brussels to Sydney?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Brussels to Sydney departing in August.

Flight prices are below average for this route right now.

Flights to Sydney from Brussels usually cost between $1,889 and $2,400 in August.
The lowest price found in the past 5 days was $1,601 on Multiple Airlines (27 Aug–3 Sept).

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 $1,855 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $2,665 and $2,645 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 4 weeks before departure, which saves you about 15% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Cheapest flight

$678
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 5 days, the lowest price for a flight from Brussels to Sydney was $678 for a one-way ticket and $1,601 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 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.
7.9
Thai AirwaysOverall score based on 412 reviews
8.4Crew
8.0Boarding
6.9Entertainment
7.5Food
7.7Comfort
Airline reviews

Excellent service in business class. Well worth the slightly higher fare as it includes lounge access, additional luggage weight and a full hot meal on board.

10.0 ExcellentRamon, July 2026
BKK - KKC
Read more Thai Airways reviews

Excellent service in business class. Well worth the slightly higher fare as it includes lounge access, additional luggage weight and a full hot meal on board.

Excellent airline. The plane was clean and the staff were very attentive

Thai Royal First is very good. Easy check in , Private room in the first class lounge and escort from ticketing to the plane. Once on board crew was very polite, food was outstanding, and the ride was smooth as silk. Restrooms were especially clean. Great Experience

Seats were uncomfortable and the vegetarian meal was awful. Some of the entertainment didn't work.

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

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.

It was good overall. At 6 foot 1 it's hard to say anything seat on a flight is comfortable but it would be nice to have more legroom. The meals were good but would have liked to get wine much sooner.

The transfer from Domestic and International was a bit confusing but I am easily confused. I did not eat any food, but the food on the other leg was decent. It was nice they turned the lights off on the night flight. The plane was in good shape, but was a little cramped in economy and I am small. They gave me a customs form to fill out and nobody looked at it as I went through customs. Not a bad flight.

I couldnt go on this flight and lost all my money over 1,000 UK Pounds as my visa to Myanmar was not accepted :(

Excellent service. departed on time, and arrived ahead of schedule. The whole restrictions around no food/drink is a bit weird even with Covid. Also, no mobiles and iPad use during takeoff and landing is very 2006!

It was very relaxing and staff were very quick to attend to any requests.

Crew was amazing as usual. Very comfortable for a 13hour flight. Check in at ATL was terrible. Ticket counter charged me $200 for a small bag. Apparently Kayak sold me a zero luggage ticket. No carry on no checked. So the check in desk charged me a bullshit $200 dollar fee for a small gym bag weighing less than 20lbs. In true 3rd party ticket buying. This will turn into a finger pointing process between Kayak and Etihad. Now I'm going to have to ship my bag back in the mail a day ahead of my return flight.

Crew were very polite and quicker in service. Excellent cooling, comfortable seats and tasty food served

In my opinion, Etihad Airways is a first rate airline except for one important element. On the day before my return flights, when I chose my seats on the Etihad website I was charged an additional $55 (US) in order to sit on the aisle. I was not at all happy about this additional "hidden" charge and I felt cheated.

Ripped off and broken seats in Business class. Seats stink and need to request the staff for additional bedsheets. Crew if very friendly though

Food and beverage service have rooms for improvement .there were no entertainment facilities available

Check in was quick and gentleman was very nice and friendly, during flight crew members were polite and attentive, food wasn’t as it should’ve been. Entertainment section needed to be updated i.e add new movies

Etihad can improve the transfer in Abudabi gates instead of making people to climb the stairs.

Good leg room and I picked the seat in last 24 hours. Food was tasty with 2 full meals and first one smaller. The crew as expected courteous and on their toes serving extra water and items in between.

I travelled from Adu Dhabi to Melb; service was minimal at best, when I asked for a bottle of water but no meal I was told it was not available- it seemed a cup would do. The staff were un helpful & dismissive. We had a family near us who I never saw obtain any assistance from crew- they were simply avoided! Meal was simple and adequate no hot drinks were on offer until close to arriving, with a pseudo breakfast. Seats were tight despite obtaining extra leg room. I will not be flying with Etihad again and will not recommend them to family & friends.

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

Information on your arrival and departure airports