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

Return flights

01 May - 27 May	Air India	direct
15 May - 21 May	Air India	direct
01 May - 10 May	Air India	direct
21 May - 22 May	Air India	direct
18 May - 05 Jun	Air India	direct
31 May - 07 Jun	Air India	direct
25 May - 05 Jun	Air India	direct

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

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.

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Cheapest return flights from Delhi to Kathmandu in May from $161

Return flights