Bangkok (BKK) to Nha Trang (NHA): 582 miles (937 km) great-circle, about 1h 40m nonstop by our estimate. Cheapest fare observed: $163 round-trip on Thai Vietjet Air, nonstop, departing May 17, 2026.
$163 round-trip, Thai Vietjet Air VZ968, departing 2026-05-17 at 11:35, returning 2026-05-20. The recorded itinerary left on a Sunday, returning on a Wednesday 3 nights later; the fare was observed 22 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $163, it ranked 7th of the 30 round-trip fares we recorded from BKK (median $259). That is 28.0 cents per great-circle mile (round-trip price over one-way distance), above the BKK median of 20.6 cents across 30 round-trip routes.
Routes from BKK of similar length: Hanoi (618 mi) at $170 and Da Nang (524 mi) at $147.
Thai Vietjet Air had the cheapest fare on 3 of 30 BKK routes. It is the 22nd longest of the 30 routes we track from BKK.
Of 17 departure airports with a fare to Nha Trang, Bangkok (BKK) ranked 2nd at $163. Lowest: $109 from Ho Chi Minh City (SGN); highest: $789 from Kathmandu (KTM); 7 nonstop. Cheapest-fare airlines (routes): VietJet Air (4), AirAsia (2), Sichuan Airlines (2), Thai Vietjet Air (2), Vietnam Airlines (2) and Air India (1), plus 4 more.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Asia/Bangkok, Asia/Ho_Chi_Minh; flight time is our estimate.