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

Return flights

18 Aug - 12 Sep	Air India
14 Aug - 08 Sep	Air India
25 Aug - 13 Sep	Air India
18 Aug - 03 Sep	Turkish Airlines
08 Aug - 17 Aug	Lufthansa
15 Aug - 04 Sep	Emirates
15 Aug - 02 Sep	Singapore Airlines
24 Aug - 31 Aug	Singapore Airlines
08 Aug - 29 Aug	Singapore Airlines
08 Aug - 24 Aug	Qatar Airways

Also check the deals for one-way flights from Newark 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.

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Cheapest return flights from Newark to Kathmandu in August from 758€

Return flights