Cheapest return flights from Kathmandu to Colombo in May from $473

Best time to book flights for Kathmandu (KTM) to Colombo (CMB) flights at AirHint

AirHint found the following cheapest return flights from Kathmandu (KTM) to Colombo (CMB) in May 2025 (see full year).

Return flights

05 May - 18 May Air India
28 May - 02 Jun Air India
29 May - 02 Jun Air India
29 May - 03 Jun Air India
09 May - 15 May Air India
26 May - 01 Jun Air India
29 May - 01 Jun Air India
29 May - 04 Jun Air India
17 May - 23 May Nepal Airlines
08 May - 14 May Air India
04 May - 17 May Air India
22 May - 05 Jun Air India
30 May - 07 Jun Air India
27 May - 01 Jun Nepal Airlines
28 May - 01 Jun Nepal Airlines
12 May - 21 May SpiceJet
11 May - 20 May Air India
07 May - 19 May Air India
09 May - 13 May IndiGo
23 May - 31 May Nepal Airlines

Also check the deals for one-way flights from Kathmandu to Colombo in May.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Colombo

Cheap car rent in Colombo