Mumbai (BOM) to Kathmandu (KTM): 989 miles (1,592 km) great-circle, about 2h 30m nonstop by our estimate. Cheapest fare observed: $347 round-trip on Air India, with 1 stop, departing May 8, 2026.
$347 round-trip, Air India AI2677, departing 2026-05-08 at 13:00, returning 2026-05-22. The recorded itinerary left on a Friday, returning on a Friday 14 nights later; the fare was observed 13 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $347, it ranked 12th of the 30 round-trip fares we recorded from BOM (median $407). That is 35.1 cents per great-circle mile (round-trip price over one-way distance), above the BOM median of 22.3 cents across 30 round-trip routes.
Routes from BOM of similar length: Malé (1,030 mi) at $347 and Colombo (948 mi) at $374.
Air India had the cheapest fare on 4 of 30 BOM routes. It is the 22nd longest of the 30 routes we track from BOM.
Of 7 departure airports with a fare to Kathmandu, Mumbai (BOM) ranked 2nd at $347. Lowest: $190 from Delhi (DEL); highest: $1159 from Zagreb (ZAG); 1 nonstop. Cheapest-fare airlines (routes): Emirates (2), Air Arabia (1), Air India (1), IndiGo (1), Nepal Airlines (1) and Turkish (1).
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Asia/Kolkata, Asia/Kathmandu; flight time is our estimate.