Search flights from Seattle (SEA) to Kathmandu (KTM)

Book your plane tickets from Seattle to Kathmandu with ease

Cheapest flights to Kathmandu

The cheapest flights available in the next 60 days – prices are updated regularly

Flying from Seattle to Kathmandu: things to know

The most popular route is from Sea-Tac Airport in Seattle to Tribhuvan Airport in Kathmandu. On average this flight takes 25 hours 5 minutes one way and costs US$2,483 for the round trip.

Most popular route
Sea-Tac Airport (SEA) to Tribhuvan Airport (KTM)
Average flight time
25 hours 5 minutes
Average round-trip price
US$2,483
Fly from Seattle to Kathmandu
11 airlines

Reasons to book flights with Booking.com

  • Great selection

    Easily compare flights, airlines and prices – all in one place

  • No hidden fees

    Always know exactly what you’re paying for

  • Flexibility

    Use our flexible plane ticket option to change your dates if needed

Flexible plane ticket options are available for an additional cost on selected airfares

Airlines that fly from Seattle to Kathmandu

Airline options may vary according to recently booked flights and your search terms

  • Qatar Airways
  • Emirates
  • Turkish Airlines
  • Singapore Airlines
  • Alaska Airlines
  • Eva Air
  • Cathay Pacific
  • DAC Aviation
  • American Airlines
  • United Airlines
  • China Airlines

Frequently asked questions

Fly to more destinations from Seattle

Research, refine and make plans for your whole trip

Hotels in Kathmandu

Thinking about which towns and cities to visit during your trip? Try Kathmandu, a popular choice with other visitors.

Flights to Kathmandu Valley

Reaching Kathmandu Valley just got easier!

Flights from Seattle to Nepal

Plan your next getaway from Seattle.

Flights from the United States to Nepal

More options to fly to Nepal.

All flights

Fly to your next dream destination.
gogless