AirHint found the following cheapest return flights from Seattle (SEA) to Kathmandu (KTM) in March 2026 (see full year).
Return flights
| 06 Mar - 13 Mar | Korean Air | ||
| 30 Mar - 14 Apr | Cathay Pacific | ||
| 15 Mar - 30 Mar | Hawaiian Airlines | ||
| 04 Mar - 11 Mar | Lufthansa | ||
| 07 Mar - 15 Mar | Qatar Airways |
Also check the deals for one-way flights from Seattle to Kathmandu in March.
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