Cheapest return CMB–KTM flights, May

AirHint found the following cheapest return flights from Colombo (CMB) to Kathmandu (KTM) in May 2026 (see full year).

Return flights

31 May - 07 Jun SriLankan Airlines direct
04 May - 24 May IndiGo
05 May - 19 May IndiGo
06 May - 20 May IndiGo
04 May - 07 May IndiGo
09 May - 16 May IndiGo
06 May - 25 May IndiGo
07 May - 26 May IndiGo
25 May - 03 Jun IndiGo
28 May - 06 Jun IndiGo
19 May - 03 Jun IndiGo
20 May - 04 Jun IndiGo
18 May - 03 Jun IndiGo
28 May - 07 Jun IndiGo
04 May - 11 May IndiGo
20 May - 25 May Air India
28 May - 31 May IndiGo
27 May - 29 Jun IndiGo
28 May - 30 Jun IndiGo
28 May - 07 Jun SriLankan Airlines direct

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

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