Sydney (SYD) to Bangkok (BKK): 4,669 miles (7,515 km) great-circle, about 9h 50m nonstop by our estimate. Cheapest fare observed: $533 round-trip on Scoot, with 1 stop, departing May 15, 2026.
$533 round-trip, Scoot TR11, departing 2026-05-15 at 13:00, returning 2026-06-12. The recorded itinerary left on a Friday, returning on a Friday 28 nights later; the fare was observed 20 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $533, it ranked 10th of the 30 round-trip fares we recorded from SYD (median $777). That is 11.4 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: Phuket (4,515 mi) at $457 and Hanoi (4,840 mi) at $523.
Scoot had the cheapest fare on 8 of 30 SYD routes. It is the 21st longest of the 30 routes we track from SYD.
Of 59 departure airports with a fare to Bangkok, Sydney (SYD) ranked 32nd at $533. Lowest: $73 from Phuket (HKT); highest: $1428 from Mexico City (MEX); 14 nonstop. Cheapest-fare airlines (routes): Air India (5), Etihad (5), Thai Vietjet Air (4), Air China (3), Scoot (3) and Thai AirAsia (3), plus 31 more.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Australia/Sydney, Asia/Bangkok; flight time is our estimate.