Delhi (DEL) to Bangkok (BKK): 1,832 miles (2,949 km) great-circle, about 4h 10m nonstop by our estimate. Cheapest fare observed: $330 round-trip on Thai AirAsia X, nonstop, departing May 4, 2026.
$330 round-trip, Thai AirAsia X XJ231, departing 2026-05-04 at 20:55, returning 2026-05-12. The recorded itinerary left on a Monday, returning on a Tuesday 8 nights later; the fare was observed 9 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $330, it ranked 14th of the 30 round-trip fares we recorded from DEL (median $371). That is 18.0 cents per great-circle mile (round-trip price over one-way distance), below the DEL median of 27.9 cents across 30 round-trip routes.
Routes from DEL of similar length: Novosibirsk (1,849 mi) at $691 and Baku (1,736 mi) at $324.
DEL to BKK is the only one of 30 DEL routes where Thai AirAsia X priced cheapest. It is the 11th longest of the 30 routes we track from DEL.
Of 59 departure airports with a fare to Bangkok, Delhi (DEL) ranked 16th at $330. 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 Asia/Kolkata, Asia/Bangkok; flight time is our estimate.