Kuala Lumpur (KUL) to Bangkok (BKK): 758 miles (1,221 km) great-circle, about 2h 00m nonstop by our estimate. Cheapest fare observed: $184 round-trip on AirAsia, with 1 stop, departing June 23, 2026.
$184 round-trip, AirAsia AK860, departing 2026-06-23 at 16:00, returning 2026-06-24. The recorded itinerary left on a Tuesday, returning on a Wednesday 1 night later; the fare was observed 59 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $184, it ranked 10th of the 30 round-trip fares we recorded from KUL (median $267). That is 24.3 cents per great-circle mile (round-trip price over one-way distance), above the KUL median of 19.0 cents across 30 round-trip routes.
Routes from KUL of similar length: Jakarta (702 mi) at $132 and Nha Trang (820 mi) at $196.
AirAsia had the cheapest fare on 7 of 30 KUL routes. It is the 22nd longest of the 30 routes we track from KUL.
Of 59 departure airports with a fare to Bangkok, Kuala Lumpur (KUL) ranked 6th at $184. 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.
The reverse, Bangkok (BKK) to Kuala Lumpur (KUL), was $165 round-trip on Thai Vietjet Air, 1 stop, departing July 5, 2026. Bangkok to Kuala Lumpur flights.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Asia/Kuala_Lumpur, Asia/Bangkok; flight time is our estimate.