Flights from London to Sydney

Flight time is typically around 21.1 hours in the air for a nonstop; one-stop itineraries take longer including the connection.

The great-circle distance is roughly 17,021 km (10,570 miles).

No nonstop service is recorded between these airports in the reference schedule data; one-stop itineraries commonly connect through Beijing or Dubai or Shanghai (Pudong) or Guangzhou (Huadu).

Sydney Kingsford Smith International Airport (SYD). Searching by city covers all of them at once.

Compare midweek dates, check nearby departure airports, and book international trips a few months ahead. The search above shows current fares from our booking partners.

long-haul trips like this are most often cheapest when booked around two to four months out — and at their most expensive inside the last two weeks. These are booking windows, not rules — fares change constantly, so compare dates in the search above and book when the total, bags included, is right.

The cheapest month depends on the demand calendar at Sydney — school holidays, the Christmas–New Year peak and major local events price highest, and shoulder-season months between them price lowest. Rather than trusting a generic answer, open the fare calendar on the search above: it shows real prices for every date this month and next, so the cheap windows are visible immediately.

Midweek departures — Tuesday to Thursday — commonly price below Friday–Sunday on routes like London → Sydney, because leisure demand concentrates at the weekend. The pattern is not guaranteed on every date, so compare a midweek date against your first-choice day in the search above before locking in.

Airport Link train. Premium train fares; transfers to the eastern suburbs save the taxi. FlyraGo’s Sydney airport transfer guide compares fixed-price cars, taxis and public transport for this airport.

It depends on your nationality, not on the route — two travellers on the same London → Sydney flight can face completely different entry rules. Check the destination country’s official immigration site or your foreign-ministry travel advice for your passport, and do it before booking: some destinations require a visa obtained in advance, others issue visas or waivers on arrival.

Whatever the fare you buy includes — baggage is set by the carrier and fare class, not the route. Low-cost fares usually include cabin bags only and charge per checked bag; full-service fares typically include at least one. Compare totals with your bags added, because a dearer fare with bags included is often cheaper overall.

Sydney has a left-luggage network — the harbour ferry afternoon is bag-hostile at peak — store and take the water route FlyraGo’s Sydney luggage storage page lists the network, with flat daily rates you can book before you fly.

Roughly 21.1 hours in the air is a genuine endurance event, and three choices decide most of it: pick your seat when booking (aisle for freedom, window for sleep), decide your sleep strategy before boarding rather than halfway through, and book your Sydney transfer in advance so the arrival half of the journey is already solved when you land, tired.