Perth (PER) to Bangkok (BKK): 3,309 miles (5,326 km) great-circle, about 7h 05m nonstop by our estimate. Cheapest fare observed: $375 round-trip on Scoot, with 1 stop, departing May 15, 2026.
$375 round-trip, Scoot TR9, departing 2026-05-15 at 18:25, returning 2026-05-23. The recorded itinerary left on a Friday, returning on a Saturday 8 nights later; the fare was observed 20 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $375, it ranked 3rd of the 30 round-trip fares we recorded from PER (median $1,061). That is 11.3 cents per great-circle mile (round-trip price over one-way distance), below the PER median of 18.3 cents across 30 round-trip routes.
Routes from PER of similar length: Da Nang (3,355 mi) at $417 and Colombo (3,600 mi) at $457.
Scoot had the cheapest fare on 10 of 30 PER routes. It is the 23rd longest of the 30 routes we track from PER.
Of 59 departure airports with a fare to Bangkok, Perth (PER) ranked 21st at $375. 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/Perth, Asia/Bangkok; flight time is our estimate.