Kathmandu (KTM) to Chengdu (CTU): 1,138 miles (1,831 km) great-circle, about 2h 45m nonstop by our estimate. Cheapest fare observed: $441 round-trip on Sichuan Airlines, nonstop, departing June 19, 2026.
$441 round-trip, Sichuan Airlines 3U3902, departing 2026-06-19 at 11:45, returning 2026-06-22. The recorded itinerary left on a Friday, returning on a Monday 3 nights later; the fare was observed 55 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $441, it ranked 9th of the 30 round-trip fares we recorded from KTM (median $659). That is 38.8 cents per great-circle mile (round-trip price over one-way distance), close to the KTM median of 37.6 cents across 28 round-trip routes.
Routes from KTM of similar length: Bangalore (1,117 mi) at $408 and Almaty (1,177 mi) at $686.
Sichuan Airlines had the cheapest fare on 2 of 30 KTM routes. It is the 20th longest of the 30 routes we track from KTM.
Of 3 departure airports with a fare to Chengdu, Kathmandu (KTM) ranked 3rd at $441. Lowest: $244 from Shanghai (PVG); highest: $441 from Kathmandu (KTM); 2 nonstop. Cheapest-fare airlines (routes): China Eastern (1), Juneyao Air (1) and Sichuan Airlines (1).
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Asia/Kathmandu, Asia/Shanghai; flight time is our estimate.