Flights from London to Sydney
Compare live flights from London to Sydney (LHR–SYD) across multiple airlines, with nonstop options, durations and seasonal price trends below.
London to Sydney flights overview
LHR and SYD sit roughly 17,021 km apart, so total travel time depends on whether you fly nonstop or connect. Both full-service and low-cost carriers serve this corridor; BookingTrolley compares their published fares so you can weigh price against flight time and baggage.
Ticket prices from London to Sydney change frequently; BookingTrolley aggregates current fares across airlines so you can spot the lowest one. Based on this route's seasonal pattern, fares average roughly £ 521.40 over the year. Nov tends to be the cheapest month to fly (around £ 434.50), while Jun is usually the most expensive at about £ 647.01 — a swing of roughly 49%.
Frequently asked questions about flying from London to Sydney
Tuesday and Wednesday are typically the cheapest days on London to Sydney for United Kingdom travellers, with Friday and Sunday often higher. BookingTrolley compares mid-week and weekend fares on LHR–SYD.
Full-service and low-cost carriers compete from London (LHR) to Sydney (SYD). BookingTrolley compares published fares so United Kingdom travellers can see which carrier is cheapest.
Economy round-trip flights on London to Sydney vary by season. BookingTrolley tracks live fares on LHR–SYD so United Kingdom travellers can compare current prices.
Flight time from London to Sydney depends on the airline and on whether the itinerary is nonstop or connecting. BookingTrolley shows a duration only when it is calculated from observed departure and arrival times.
Shoulder months often pair good weather with lower airfare into Sydney. BookingTrolley price trends on London to Sydney show steeper rises around major United Kingdom holiday periods.
Use BookingTrolley's flexible-date comparison for London (LHR) to Sydney (SYD) to see which days cost least. Avoiding Friday–Sunday peaks is one of the fastest ways for United Kingdom travellers to cut the ticket price.
Find cheap flights on popular routes
Explore fares from London, into Sydney, and on related corridors with BookingTrolley.