AirHint found the following cheapest one-way flights from Seattle (SEA) to Kathmandu (KTM) in January 2026 (see full year).
One-Way flights
| 25 Jan | Philippine Airlines | ||
| 26 Jan | Hawaiian Airlines | ||
| 21 Jan | Alaska Airlines | ||
| 06 Jan | ANA |
Also check the deals for return flights from Seattle to Kathmandu in January.
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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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