High 6 London–Sydney flights departing on Saturday 22 June 2024. 21h40m Singapore Airways from Gatwick: departs 10.15am, arrives 4.55pm subsequent day.
Source : https://www.independent.co.uk/travel/news-and-advice/london-sydney-fastest-flight-australia-singapore-airlines-b2565855.html
New London-Sydney flight gets passengers to Australia even quicker | The Independent
