Singapore (SIN) to Bangkok (BKK): 880 miles (1,417 km) great-circle, about 2h 15m nonstop by our estimate. Cheapest fare observed: $223 round-trip on Thai AirAsia, nonstop, departing July 3, 2026.
$223 round-trip, Thai AirAsia FD352, departing 2026-07-03 at 20:55, returning 2026-07-06. The recorded itinerary left on a Friday, returning on a Monday 3 nights later; the fare was observed 69 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $223, it ranked 8th of the 30 round-trip fares we recorded from SIN (median $361). That is 25.3 cents per great-circle mile (round-trip price over one-way distance), above the SIN median of 19.9 cents across 30 round-trip routes.
Routes from SIN of similar length: Nha Trang (818 mi) at $281 and Bali (1,039 mi) at $160.
SIN to BKK is the only one of 30 SIN routes where Thai AirAsia priced cheapest. It is the 23rd longest of the 30 routes we track from SIN.
Of 59 departure airports with a fare to Bangkok, Singapore (SIN) ranked 8th at $223. 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 Singapore (SIN), was $235 round-trip on Thai AirAsia, nonstop, departing May 5, 2026. Bangkok to Singapore flights.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Asia/Singapore, Asia/Bangkok; flight time is our estimate.