Melbourne (MEL) to Bangkok (BKK): 4,555 miles (7,331 km) great-circle, about 9h 35m nonstop by our estimate. Cheapest fare observed: $451 round-trip on AirAsia X, with 1 stop, departing July 15, 2026.
$451 round-trip, AirAsia X D7213, departing 2026-07-15 at 00:30, returning 2026-08-07. The recorded itinerary left on a Wednesday, returning on a Friday 23 nights later; the fare was observed 81 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $451, it ranked 9th of the 30 round-trip fares we recorded from MEL (median $688). That is 9.9 cents per great-circle mile (round-trip price over one-way distance), below the MEL median of 14.5 cents across 30 round-trip routes.
Routes from MEL of similar length: Hong Kong (4,606 mi) at $672 and Guangzhou (4,690 mi) at $589.
AirAsia X had the cheapest fare on 2 of 30 MEL routes. It is the 20th longest of the 30 routes we track from MEL.
Of 59 departure airports with a fare to Bangkok, Melbourne (MEL) ranked 28th at $451. 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/Melbourne, Asia/Bangkok; flight time is our estimate.