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

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

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

Return flights

17 Sep - 24 Sep Air India direct
01 Sep - 07 Sep Air India direct
03 Sep - 06 Sep Air India direct
10 Sep - 17 Sep Air India direct
10 Sep - 19 Sep Air India direct
02 Sep - 05 Sep Air India direct
12 Sep - 20 Sep Air India direct
15 Sep - 20 Sep Air India direct
05 Sep - 09 Sep IndiGo direct
18 Sep - 25 Sep IndiGo direct
18 Sep - 14 Oct Air India direct
17 Sep - 13 Oct Air India direct
30 Sep - 06 Oct Nepal Airlines direct
27 Sep - 01 Oct Nepal Airlines
29 Sep - 11 Oct Nepal Airlines direct
26 Sep - 03 Oct IndiGo
21 Sep - 14 Oct Nepal Airlines direct
24 Sep - 06 Oct Nepal Airlines direct
23 Sep - 20 Oct Nepal Airlines direct
25 Sep - 06 Oct Nepal Airlines direct

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