Cheapest return flights from Kathmandu to Delhi in September from $174

Best time to book flights for Kathmandu (KTM) to Delhi (DEL) flights at AirHint

AirHint found the following cheapest return flights from Kathmandu (KTM) to Delhi (DEL) in September 2025 (see full year).

Return flights

01 Sep - 07 Sep Nepal Airlines direct
28 Sep - 08 Oct IndiGo direct
28 Sep - 09 Oct IndiGo direct
04 Sep - 01 Oct Nepal Airlines direct
17 Sep - 15 Oct IndiGo direct
20 Sep - 28 Oct IndiGo direct
16 Sep - 25 Sep IndiGo direct
18 Sep - 21 Sep IndiGo direct
19 Sep - 19 Sep Air India direct
28 Sep - 14 Oct SpiceJet direct

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

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.

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