AirHint found the following cheapest return flights from Lisbon (LIS) to Kathmandu (KTM) in August 2025 (see full year).

Return flights

14 Aug - 12 Sep	Air France
28 Aug - 01 Sep	Etihad Airways
16 Aug - 23 Aug	Fly One
16 Aug - 15 Sep	IndiGo
18 Aug - 15 Sep	IndiGo
17 Aug - 16 Sep	IndiGo
02 Aug - 06 Sep	Fly One
08 Aug - 15 Aug	SkyUp Malta
15 Aug - 20 Sep	IndiGo
06 Aug - 24 Aug	Wizz Air Malta
06 Aug - 07 Aug	IndiGo
28 Aug - 11 Sep	IndiGo
19 Aug - 22 Aug	IndiGo
05 Aug - 15 Aug	IndiGo
15 Aug - 22 Aug	IndiGo
05 Aug - 12 Aug	IndiGo
04 Aug - 10 Sep	IndiGo
18 Aug - 16 Sep	Turkish Airlines
10 Aug - 31 Aug	IndiGo
15 Aug - 29 Aug	Emirates

Also check the deals for one-way flights from Lisbon to Kathmandu in August.

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.

Book a cheap hotel in Kathmandu

Cheap car rent in Kathmandu

Cheapest return flights from Lisbon to Kathmandu in August from 884€

Return flights