AirHint found the following cheapest return flights from Kathmandu (KTM) to Singapore (SIN) in June 2025 (see full year).

Return flights

30 Jun - 06 Jul	IndiGo
29 Jun - 06 Jul	IndiGo
25 Jun - 30 Jun	IndiGo
24 Jun - 06 Jul	Air India Express
24 Jun - 07 Jul	Air India Express
25 Jun - 15 Jul	IndiGo
26 Jun - 15 Jul	IndiGo
22 Jun - 30 Jun	IndiGo
23 Jun - 30 Jun	IndiGo
29 Jun - 04 Jul	IndiGo
24 Jun - 28 Jun	IndiGo
22 Jun - 28 Jun	IndiGo
21 Jun - 30 Jun	Air India Express
21 Jun - 28 Jun	Air India Express
21 Jun - 05 Jul	IndiGo
21 Jun - 27 Jun	IndiGo
21 Jun - 29 Jun	IndiGo
21 Jun - 28 Jun	Singapore Airlines	direct
30 Jun - 06 Jul	Singapore Airlines	direct
29 Jun - 06 Jul	Singapore Airlines	direct

Also check the deals for one-way flights from Kathmandu to Singapore in June.

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 Singapore

Cheap car rent in Singapore

Cheapest return flights from Kathmandu to Singapore in June from $333

Return flights