Cheapest return flights from Kathmandu to Delhi in September from $141

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

Return flights

04 Sep - 06 Sep Nepal Airlines direct
02 Sep - 04 Sep Nepal Airlines direct
01 Sep - 07 Sep Air India direct
01 Sep - 06 Sep Air India direct
03 Sep - 07 Sep Air India direct
01 Sep - 02 Sep IndiGo direct
04 Sep - 07 Sep Air India direct
01 Sep - 01 Sep Air India direct
03 Sep - 04 Sep Air India direct
06 Sep - 09 Sep IndiGo direct
02 Sep - 29 Oct IndiGo direct
07 Sep - 26 Oct IndiGo direct
18 Sep - 05 Oct Nepal Airlines direct
19 Sep - 15 Oct Nepal Airlines direct
30 Sep - 31 Oct Air India direct
29 Sep - 27 Oct Air India direct
27 Sep - 11 Oct Air India direct
26 Sep - 09 Oct Air India direct
24 Sep - 01 Oct IndiGo direct
30 Sep - 08 Oct Air India direct

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

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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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