Cheapest return flights from Delhi to Kathmandu in September from $119

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

Return flights

01 Sep - 12 Sep IndiGo direct
12 Sep - 06 Oct Air India direct
09 Sep - 07 Oct Air India direct
09 Sep - 06 Oct Air India direct
05 Sep - 19 Sep IndiGo direct
11 Sep - 16 Sep IndiGo direct
15 Sep - 17 Sep IndiGo direct
17 Sep - 03 Oct Air India direct
09 Sep - 30 Sep Air India direct
18 Sep - 02 Oct Air India direct
14 Sep - 27 Sep Air India direct
17 Sep - 27 Sep Air India direct
16 Sep - 23 Sep Air India direct
18 Sep - 18 Sep Air India direct
18 Sep - 30 Sep Air India direct
20 Sep - 09 Oct Air India direct
21 Sep - 05 Oct IndiGo direct
26 Sep - 12 Oct Flexflight direct
28 Sep - 02 Oct IndiGo direct
26 Sep - 11 Oct Air India Express

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