£594 Cheap Flights from Kathmandu (KTM) to Seattle (SEA)

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

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

Prices were available within the past 7 days and start at £594 for one-way flights and £947 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Singapore Airlines
Singapore Airlines
Singapore Airlines
Singapore Airlines
Qatar Airways
Qatar Airways
Singapore Airlines
Emirates
Cathay Pacific
Air India

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

February is typically the cheapest month to fly

From £897 - £1,384 per traveller.

Graph displaying average flight prices per month

Flight from Kathmandu to Seattle route information
Origin airport
Tribhuvan Intl.
Destination airport
Seattle - Tacoma Intl.
Return price
£947
Distance
11146 km

Compare flights from Kathmandu to Seattle easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Kathmandu to Seattle. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Seattle - Tacoma Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Tribhuvan Intl. to Seattle - Tacoma Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Tribhuvan Intl. (KTM) to Seattle - Tacoma Intl. (SEA)

The easiest way to view the best deals on flights from Kathmandu to Seattle today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Tribhuvan Intl. to Seattle - Tacoma Intl. start at just £947 and range up to £1,250.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Kathmandu and Seattle
  • booking your flight during October, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Kathmandu to Seattle flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Tribhuvan Intl. to Seattle - Tacoma Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

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 £947. 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 cancelled 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 kilometres 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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