Flyus.com searches for the lowest fares from hundreds of airlines to offer you cheap, competitive airfares to your desired destinations, no matter where you're headed. Tell us where you want to go and our interactive Price Tracker tool will point you to the best time to fly to save you time and money!

Flyus »  Cheap Flights  »  Washington
Seattle (SEA)  »  Nepal  »  SEA to KTM

Good to Know - Flights from Seattle to Kathmandu

Low Season:
September
Best time to beat the crowds
High Season:
May
Most popular time to fly
Good Deal:
$ 1,113.41
or less (round trip)

Cheapest Day of the Month to Book Flights



Top Tips for Finding Cheap Flights from Seattle to Kathmandu

Looking for cheap airfare from Seattle to Kathmandu? 25% of our users found round-trip tickets to Kathmandu for the following price or less: $ 1,113.41 Book at least 4 weeks before departure in order to get a below-average price. High season is considered to be May. The cheapest month to fly from Seattle to Kathmandu is September. Enter your preferred departure airport and travel dates into the search form above to unlock the latest Seattle to Kathmandu flight deals.

FAQs - Booking from Seattle to Kathmandu flights

How long is the flight from Seattle to Kathmandu?
A flight from Seattle to Kathmandu takes 1day7hours5minutes.
What is the cheapest flight Seattle to Kathmandu?:
The cheapest flight Seattle to Kathmandu found on flyus.com in the last 72 hours was $1,113.41 round-trip.
 
Which airlines fly to Kathmandu?:
• China Eastern Airlines
• Alaska Airlines
• Singapore Airlines
• China Southern Airlines
• JetBlue Airways
• Qatar Airways
• Thai Airways Intl
• Emirates Airlines
• American Airlines
• Etihad Airways
 

Find cheap flights from Seattle to Kathmandu and book discounted airfare from different cities all over the United States. Explore airline ticket deals on flight routes all over the World! At Flyus, we take pride in helping you discover and book the best flight deals for your next trip at the cheapest price. We make booking flights from different departures easy and provide you with peace of mind with our Best Purchase Guarantee.

Where do you want to fly next?

Cheapest Flights
from Seattle, United States (SEA) to:

  • Kathmandu, Nepal (KTM)
    Jan 26, 25 - Feb 11, 25
    $1,113.41
    Search

  • Kathmandu, Nepal (KTM)
    Sep 17, 25 - Sep 30, 25
    $1,113.51
    Search

  • Kathmandu, Nepal (KTM)
    Jan 23, 25 - Jan 28, 25
    $1,143.51
    Search

  • Kathmandu, Nepal (KTM)
    Sep 02, 25 - Oct 01, 25
    $1,161.71
    Search

  • Kathmandu, Nepal (KTM)
    Jan 23, 25 - Feb 01, 25
    $1,188.71
    Search