$2,224 Cheap China Southern Airlines flights Seattle (SEA) to Kathmandu (KTM)

View $2,224 flight on Sat, Sep 20, 2025Opens in a new window

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$2,224 Cheap China Southern Airlines flights Seattle (SEA) to Kathmandu (KTM)

Prices were available within the past 7 days and start at $2,224 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Seattle (SEA) to Kathmandu (KTM)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Tribhuvan Intl.
Airlines serving
Cathay Pacific, Emirates, KLM, Korean Air, Malaysia Airlines, Qatar Airways, Singapore Airlines, Turkish Airlines
Popular airline
Cathay Pacific
Distance
6966 mi

Frequently asked questions

How much is a China Southern Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to Tribhuvan Intl. Airport (KTM)?
Apply the "Price (lowest to highest)" filter on Expedia to look for cheap China Southern Airlines return flights from SEA to KTM. Affordable one-way tickets from $2,224 are available as well.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from SEA to KTM with China Southern Airlines?
Browse for return or one-way flights to Kathmandu in July or August. You could find a cheap fare with China Southern Airlines during these quieter months.
What is the cheapest time to book flights from Seattle - Tacoma Intl. Airport (SEA) to Tribhuvan Intl. Airport (KTM) with China Southern Airlines?
To get cheap flights from SEA to KTM with China Southern Airlines, start searching about one month before your intended departure. You can save 17% when you book your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another good tip? Booking on Sunday can lead to average savings of 17% compared to Friday (the most expensive day).**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does China Southern Airlines fly nonstop from Seattle - Tacoma Intl. Airport (SEA) to Tribhuvan Intl. Airport (KTM)?
To figure out if there's a direct journey from SEA to KTM with China Southern Airlines or another carrier, check the "Nonstop" filter when searching for flights.
What is the earliest China Southern Airlines flight from SEA to KTM?
Browse China Southern Airlines's earliest flights from SEA to KTM by checking the "Morning" and "Early Morning" filters. Not only will you get to your destination sooner, early departures also experience 20% fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does China Southern Airlines fly into in Kathmandu?
Jump on a China Southern Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to Kathmandu, and you'll probably land at Tribhuvan Intl. Airport (KTM). This is the airline's primary hub here.
What kind of luggage can I take on a China Southern Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to Tribhuvan Intl. Airport (KTM)?
China Southern Airlines lets passengers bring 1 checked-in bag weighing up to 50 lb with dimensions not exceeding 62 inches on standard economy flights from SEA to KTM. You can also take 1 cabin bag with you in the cabin. This hand luggage must not exceed 45 inches and be no heavier than 11 lb. Baggage allowances can vary depending on the cabin class and fare type, so check your booking or China Southern Airlines's website to avoid paying additional costs at the airport.
Why fly with China Southern Airlines from SEA to KTM?
Taking off from SEA to KTM with China Southern Airlines means enjoying a host of perks, such as top-tier customer service and a 4-star airline rating. Plus, when you book through Expedia, One Key™ members can earn OneKeyCash™* to redeem on select future travel purchases. That's on top of the China Southern Sky Pearl Club points you can earn with China Southern Airlines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my China Southern Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to Tribhuvan Intl. Airport (KTM)?
Typically, you can change or cancel your flight, although additional charges may apply if your booking was made more than 24 hours ago. Need to keep your options open? Use our "Changes included" or "No cancel fee" filter to find flights that won't penalize you if you need to revise your plans. To modify your booking, head to "Trips," select your flight and click on "Manage Booking" for more information.

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*Available to One Key members.