Flying between Kathmandu (KTM), Nepal and Seattle (SEA), USA is a long-haul international journey connecting South Asia with the Pacific Northwest of the United States. There are no direct nonstop flights on this route; most itineraries operate with 1–2 stops via major hubs such as Doha, Istanbul, Seoul, or Dubai. Popular airlines serving this sector include Qatar Airways, Turkish Airlines, Korean Air, Cathay Pacific, Emirates, Singapore Airlines and others, with total flight durations usually ranging from 25 to 45+ hours depending on layovers and routing.
Flight prices for Kathmandu - Seattle typically vary based on seasonality, advance booking timing, airline, and the number of stops.
| Season / Month | Typical Round-Trip Fare (Economy) | Notes |
|---|---|---|
| Winter Low Season (Dec) | USD $900 – $1,500 | Lower demand, often cheaper flights available |
| Peak Winter (Jan) | USD $1,300 – $2,400 | January tends to be highest demand and prices |
| Shoulder Season (Feb – Apr) | USD $1,000 – $2,000 | Fares moderate but vary with spring holidays |
| Summer Travel (May – Aug) | USD $1,100 – $2,200 | Higher travel season in the U.S. & varied pricing |
Total journey time from Kathmandu to Seattle typically ranges from 25 hours or more, including layovers. There are no direct flights; most connections are in Asia-Middle East gateways such as Doha (Qatar), Istanbul (Turkey), Seoul (Korea), or Dubai (UAE).
