Sydney (SYD) to London (LON): 10,576 miles (17,021 km) great-circle, about 21h 40m nonstop by our estimate. Cheapest fare observed: $1356 round-trip on Scoot, with 2 stops, departing June 5, 2026.
$1356 round-trip, Scoot TR11, departing 2026-06-05 at 13:00, returning 2026-06-26. The recorded itinerary left on a Friday, returning on a Friday 21 nights later; the fare was observed 41 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $1356, it ranked 24th of the 30 round-trip fares we recorded from SYD (median $777). That is 12.8 cents per great-circle mile (round-trip price over one-way distance), below the SYD median of 15.3 cents across 30 round-trip routes.
Routes from SYD of similar length: Paris (10,529 mi) at $1504 and Madrid (10,982 mi) at $1698.
Scoot had the cheapest fare on 8 of 30 SYD routes. It is the 2nd longest of the 30 routes we track from SYD.
Of 49 departure airports with a fare to London, Sydney (SYD) ranked 49th at $1356. Lowest: $46 from Dublin (DUB); highest: $1356 from Sydney (SYD); 14 nonstop. Cheapest-fare airlines (routes): Ryanair (7), easyJet (4), Etihad (4), Frontier (4), Air Canada (3) and WestJet (3), plus 19 more.
That depends on your passport and trip, so check the official source for United Kingdom: GOV.UK: check if you need a UK visa. Connecting elsewhere? Check that country's transit rules too.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Australia/Sydney, Europe/London; flight time is our estimate.