Kathmandu (KTM) to Guangzhou (CAN): 1,763 miles (2,837 km) great-circle, about 4h 00m nonstop by our estimate. Cheapest fare observed: $508 round-trip on Sichuan Airlines, with 1 stop, departing May 13, 2026.
$508 round-trip, Sichuan Airlines 3U3902, departing 2026-05-13 at 11:45, returning 2026-05-19. The recorded itinerary left on a Wednesday, returning on a Tuesday 6 nights later; the fare was observed 18 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $508, it ranked 10th of the 30 round-trip fares we recorded from KTM (median $659). That is 28.8 cents per great-circle mile (round-trip price over one-way distance), below the KTM median of 37.6 cents across 28 round-trip routes.
Routes from KTM of similar length: Nha Trang (1,886 mi) at $789 and Novosibirsk (1,893 mi) at $1344.
Sichuan Airlines had the cheapest fare on 2 of 30 KTM routes. It is the 16th longest of the 30 routes we track from KTM.
Of 28 departure airports with a fare to Guangzhou, Kathmandu (KTM) ranked 20th at $508. Lowest: $192 from Hanoi (HAN); highest: $1335 from San Francisco (SFO); 7 nonstop. Cheapest-fare airlines (routes): Cathay Pacific (4), Air China (3), 9 Air (2), China Eastern (2), Hainan Airlines (2) and Qatar (2), plus 11 more.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Asia/Kathmandu, Asia/Shanghai; flight time is our estimate.