Cheapest return flights from Boston to Kathmandu in September from 836€

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

Return flights

19 Sep - 26 Sep Etihad Airways
17 Sep - 15 Oct Lufthansa
17 Sep - 16 Oct Virgin Atlantic
21 Sep - 29 Sep Etihad Airways
29 Sep - 14 Oct Etihad Airways
18 Sep - 25 Sep Etihad Airways
17 Sep - 14 Oct Etihad Airways
17 Sep - 17 Oct Etihad Airways
22 Sep - 29 Oct Etihad Airways
17 Sep - 24 Sep Qatar Airways

Also check the deals for one-way flights from Boston 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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