AirHint found the following cheapest return flights from Boston (BOS) to Kathmandu (KTM) in November 2025 (see full year).
Return flights
| 24 Nov - 16 Dec | Turkish Airlines | ||
| 10 Nov - 17 Nov | Etihad Airways | ||
| 25 Nov - 14 Dec | Turkish Airlines | ||
| 27 Nov - 04 Dec | Iberia | ||
| 13 Nov - 28 Nov | Iberia |
Also check the deals for one-way flights from Boston to Kathmandu in November.
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