£715 Cheap Flights from Kathmandu (KTM) to Seattle (SEA)

View £715 flight on Wed, 8 Jul 2026Opens in a new window

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 £715 for one-way flights and £1,051 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Qatar Airways
Wed, 8 Jul - Tue, 29 Dec
KTM
Kathmandu
SEA
Seattle
£1,051 Return, found 14 hours ago
£1,051
Return
found 14 hours ago
Select Qatar Airways flight, departing Wed, 8 Jul from Kathmandu to Seattle, returning Tue, 29 Dec, priced at £1,051 found 14 hours ago
Qatar Airways
Wed, 8 Jul - Tue, 29 Dec
KTM
Kathmandu
SEA
Seattle
£1,053 Return, found 14 hours ago
£1,053
Return
found 14 hours ago
Select Qatar Airways flight, departing Wed, 8 Jul from Kathmandu to Seattle, returning Tue, 29 Dec, priced at £1,053 found 14 hours ago
Qatar Airways
Wed, 8 Jul - Tue, 29 Dec
KTM
Kathmandu
SEA
Seattle
£1,111 Return, found 14 hours ago
£1,111
Return
found 14 hours ago
Select Qatar Airways flight, departing Wed, 8 Jul from Kathmandu to Seattle, returning Tue, 29 Dec, priced at £1,111 found 14 hours ago
Qatar Airways
Wed, 8 Jul - Tue, 29 Dec
KTM
Kathmandu
SEA
Seattle
£1,113 Return, found 14 hours ago
£1,113
Return
found 14 hours ago
Select Qatar Airways flight, departing Wed, 8 Jul from Kathmandu to Seattle, returning Tue, 29 Dec, priced at £1,113 found 14 hours ago
Cathay Pacific
Wed, 8 Jul - Tue, 29 Dec
KTM
Kathmandu
SEA
Seattle
£1,158 Return, found 14 hours ago
£1,158
Return
found 14 hours ago
Select Cathay Pacific flight, departing Wed, 8 Jul from Kathmandu to Seattle, returning Tue, 29 Dec, priced at £1,158 found 14 hours ago
Qatar Airways
Wed, 8 Jul - Tue, 29 Dec
KTM
Kathmandu
SEA
Seattle
£1,190 Return, found 14 hours ago
£1,190
Return
found 14 hours ago
Select Qatar Airways flight, departing Wed, 8 Jul from Kathmandu to Seattle, returning Tue, 29 Dec, priced at £1,190 found 14 hours ago
Cathay Pacific
Wed, 8 Jul - Tue, 29 Dec
KTM
Kathmandu
SEA
Seattle
£1,198 Return, found 14 hours ago
£1,198
Return
found 14 hours ago
Select Cathay Pacific flight, departing Wed, 8 Jul from Kathmandu to Seattle, returning Tue, 29 Dec, priced at £1,198 found 14 hours ago
Qatar Airways
Wed, 8 Jul - Tue, 29 Dec
KTM
Kathmandu
SEA
Seattle
£1,251 Return, found 14 hours ago
£1,251
Return
found 14 hours ago
Select Qatar Airways flight, departing Wed, 8 Jul from Kathmandu to Seattle, returning Tue, 29 Dec, priced at £1,251 found 14 hours ago
Emirates
Wed, 8 Jul - Tue, 29 Dec
KTM
Kathmandu
SEA
Seattle
£1,253 Return, found 14 hours ago
£1,253
Return
found 14 hours ago
Select Emirates flight, departing Wed, 8 Jul from Kathmandu to Seattle, returning Tue, 29 Dec, priced at £1,253 found 14 hours ago
Singapore Airlines
Wed, 8 Jul - Tue, 29 Dec
KTM
Kathmandu
SEA
Seattle
£1,455 Return, found 14 hours ago
£1,455
Return
found 14 hours ago
Select Singapore Airlines flight, departing Wed, 8 Jul from Kathmandu to Seattle, returning Tue, 29 Dec, priced at £1,455 found 14 hours ago

Frequently asked questions

How do I find cheap flights from Kathmandu (KTM-Tribhuvan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Kathmandu (KTM-Tribhuvan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Kathmandu (KTM-Tribhuvan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Kathmandu (KTM-Tribhuvan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
There are approximately 15 connecting flights per day from Kathmandu (KTM-Tribhuvan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.). Some common connection points include Indira Gandhi Intl. (DEL), Hong Kong Intl. (HKG), and Hamad Intl. (DOH).
What is the earliest flight from Kathmandu (KTM-Tribhuvan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Kathmandu (KTM-Tribhuvan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) typically departs at approximately 12:20 AM local time, operated by FZ / EK. This is a seasonal service active in September and October. An early departure like this can help maximize your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Kathmandu (KTM-Tribhuvan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
You'll typically find the most flights from Kathmandu (KTM-Tribhuvan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) on a Monday, with around 16 flights available. This gives you a good selection of options for your journey. Major airlines on this route include FZ, AI, and QR. Flight schedules are fairly consistent throughout the week, with only a slight variation between the busiest and least busy days.
What are the most popular departure times for flights from Kathmandu (KTM-Tribhuvan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Kathmandu (KTM-Tribhuvan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) are in the late evening, from 9pm to midnight. About 52% of passengers prefer this time. Many major carriers, including Cathay Pacific, Singapore Airlines and Alaska Airlines, offer flights during this window. This timing works well because it allows you to maximize your day before your flight and arrive at your destination refreshed.
How long does it take to fly from Kathmandu (KTM-Tribhuvan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Flights from KTM to SEA with one stop typically take around 22 hours 20 minutes, covering approximately 6,967 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Kathmandu (KTM-Tribhuvan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Select the "Business class" and "First class" filters when looking for KTM to SEA flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Kathmandu (KTM-Tribhuvan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Kathmandu (KTM-Tribhuvan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle from Tribhuvan Intl. (KTM)?
If you're planning to travel to Seattle from Tribhuvan Intl. (KTM), you can fly into Seattle - Tacoma Intl. (SEA) Some flights may connect through major hubs like Indira Gandhi Intl. (DEL), Hong Kong Intl. (HKG), Hamad Intl. (DOH) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Kathmandu (KTM-Tribhuvan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Kathmandu (KTM-Tribhuvan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Kathmandu (KTM-Tribhuvan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Kathmandu (KTM-Tribhuvan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Kathmandu (KTM-Tribhuvan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Kathmandu (KTM-Tribhuvan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Tribhuvan Intl.
Destination airport
Seattle - Tacoma Intl.
Return price
£1,050
Distance
11146 km

Book with confidence

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 £1,051 and range up to £1,455.  

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 July, 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.  

Compare flights from Kathmandu to Seattle easily and book with confidence

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