Cheap Flights from Kathmandu (KTM) to Seattle (SEA) from HK$6,554~

View HK$6,554 flight on Thu, 2 Apr 2026Opens in a new window

Popular airlines from Tribhuvan Intl. Airport (KTM) to Seattle-Tacoma International Airport (SEA)

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Find Cheap Flights from Kathmandu (KTM) to Seattle (SEA)

Prices were available within the past 7 days and start at HK$6,554 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from Kathmandu (KTM) to Seattle (SEA)

February is typically the cheapest month to fly

From HK$9,317 - HK$14,363 per traveller.
Kathmandu to Seattle route information
Origin airport
Tribhuvan Intl.
Destination airport
Seattle - Tacoma Intl.
Distance
11146 km

Flights from Kathmandu to Seattle

Book cheap flights from Kathmandu (KTM) to Seattle (SEA) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from Kathmandu (KTM) to Seattle (SEA) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Kathmandu (KTM) to Seattle (SEA) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your Seattle flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Seattle and things to do in Seattle for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to Seattle more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Seattle is HK$6,554 now!

 

Frequently asked questions

How much is a flight from Tribhuvan Intl. Airport (KTM) to Sea-Tac Airport?
Round-trip journeys between KTM and SEA start from . This is based on fares advertised within the last 7 days on Expedia for flights departing within the next year — book today so you don't miss out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Tribhuvan Intl. Airport (KTM) to Sea-Tac Airport?
The majority of flights can be canceled online, but whether you incur a fee varies between airlines. If you do need to cancel your escape, follow the instructions in the Customer Service Portal.
How do I find cheap flights from Tribhuvan Intl. Airport (KTM) to Seattle - Tacoma Intl. Airport (SEA) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Tribhuvan Intl. Airport to Seattle - Tacoma Intl. Airport (SEA) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from KTM to Seattle - Tacoma Intl. Airport (SEA)?
You'll have 11,200 kilometers to cover on the long-haul Kathmandu to SeaTac route. Dress in layers of comfy clothes and consider taking earplugs and a sleep mask.
Which airlines fly direct from KTM to Sea-Tac Airport?
Flying nonstop between Tribhuvan Intl. Airport and Sea-Tac Airport isn't possible at this time. However, you'll still be able to book a flight to SeaTac with at least one stop.
Are Tribhuvan Intl. Airport (KTM) to Sea-Tac Airport flight tickets cheaper when they're purchased at the last minute?
Airline tickets from Tribhuvan Intl. Airport (KTM) to Sea-Tac Airport are available up to 12 months prior to departure on Expedia. And although you may pick up a fantastic last-minute deal, it's never a sure thing. Also, booking your flights well in advance means you'll have more options — and you can avoid getting caught in the dreaded middle seat! We frequently update our fares to make sure you get the biggest bargains, so keep checking in for all the latest specials.

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