London to Sydney Business Class Flights

London to Sydney covers approximately 17,020 km and requires at least one stop, as no nonstop commercial service currently operates. The journey takes around 22 hours including connection time. Qantas routes via Singapore or Perth, Singapore Airlines connects at Changi, and Cathay Pacific via Hong Kong. This is one of the longest business class routes globally, making seat quality and connection experience critical decision factors. Qantas has announced plans for Project Sunrise nonstop services, but currently all options involve a stopover.

Airlines on this route

• Qantas — Business class on A380 (via Singapore) or 787-9 (via Perth), 1-2-1 layout.
• Singapore Airlines — Business class on A380 or 777-300ER via Singapore Changi, 1-2-1 layout.
• Cathay Pacific — Business class on A350-1000 via Hong Kong, reverse herringbone 1-2-1.

Best time to book

February, May, and November offer the best fares between peak seasons. Qantas occasionally runs sale fares from €2,500–€3,500 round trip. Singapore Airlines’ ex-EU fares routed via European gateways to Sydney can undercut direct bookings. Cathay Pacific sales from European origins offer strong value. Avoid December–January (Australian summer) and July–August (European summer) when demand is highest from both ends.

What to expect

All three carriers provide lie-flat seats with direct aisle access. Singapore Airlines’ transit through Changi offers the best connecting experience, with lounge facilities, free city tours, and the Jewel complex. Qantas via Perth allows for a shorter second leg to Sydney. Cathay’s Hong Kong hub provides efficient connections and acclaimed lounge dining. Expect three to four meal services across the full journey. Total travel time ranges from 20–24 hours depending on carrier and connection.

At the destination

Sydney is Australia’s largest city, built around one of the world’s most recognisable harbours. The Sydney Harbour Bridge and Opera House anchor the waterfront, while Circular Quay serves as the ferry hub to Manly Beach and Taronga Zoo. Bondi Beach is a 20-minute drive from the CBD, and the coastal walk from Bondi to Coogee is a popular half-day excursion. The Blue Mountains, a UNESCO World Heritage Area with eucalyptus forests and dramatic sandstone cliffs, are reachable in 90 minutes by train from Central Station.

Connecting flights from Sydney

Sydney Kingsford Smith Airport is the main hub for onward business class travel across Australasia and the Pacific. Qantas operates frequent lie-flat service to Melbourne, Auckland, and Fiji with direct flights. Qantas also serves Perth, Brisbane, and Cairns domestically, while Air New Zealand provides competitive business class options to Auckland and connecting points across New Zealand.

FAQ

How much does business class cost from London to Sydney?

Round-trip fares average €5,500–€8,500. The best sale fares drop to €2,500–€3,500 during promotional periods. Qantas, Singapore Airlines, and Cathay Pacific all run periodic sales. The route’s length and high demand mean fares rarely fall below €2,500.

Which airline has the best business class from London to Sydney?

Singapore Airlines offers the best overall experience, combining a top-tier business class seat with the world’s best transit airport at Changi. Qantas provides brand consistency and a strong Australian-themed soft product. Cathay Pacific’s A350 business class and Hong Kong lounge experience are also highly rated.

Are there direct business class flights from London to Sydney?

No nonstop flights currently operate between London and Sydney. All services require at least one stop. The shortest one-stop options are Qantas via Singapore (approximately 22 hours total) or via Perth. Qantas’ Project Sunrise aims to introduce nonstop A350 service on this route in the future.