Bangkok (DMK) to St. Petersburg (LED): 4,709 miles (7,579 km) great-circle, about 9h 55m nonstop by our estimate. Cheapest fare observed: $1107 round-trip on Thai AirAsia X, with 1 stop, departing May 17, 2026.
$1107 round-trip, Thai AirAsia X XJ864, departing 2026-05-17 at 19:30, returning 2026-05-18. The recorded itinerary left on a Sunday, returning on a Monday 1 night later; the fare was observed 22 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $1107, it ranked 28th of the 30 round-trip fares we recorded from DMK (median $322). That is 23.5 cents per great-circle mile (round-trip price over one-way distance), close to the DMK median of 25.1 cents across 30 round-trip routes.
Routes from DMK of similar length: Istanbul (4,652 mi) at $779 and Moscow (4,397 mi) at $899.
Thai AirAsia X had the cheapest fare on 5 of 30 DMK routes. It is the longest of the 30 routes we track from DMK.
Of 98 departure airports with a fare to St. Petersburg, Bangkok (DMK) ranked 70th at $1107. Lowest: $247 from Antalya (AYT); highest: $2769 from Havana (HAV); 0 nonstop. Cheapest-fare airlines (routes): Pegasus Airlines (13), Emirates (8), Sichuan Airlines (8), Turkish (8), China Eastern (4) and Etihad (4), plus 38 more.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Asia/Bangkok, Europe/Moscow; flight time is our estimate.