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Seattle To Kathmandu Flights

  • One-Way
  • Round-Trip
  • Multi-City

From

Indira Gandhi International Airport

To

Chhatrapati Shivaji International Airport

DEPARTURE DATE

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Friday

Return Date

Book a round trip
to save more

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TRAVELLER & CLASS

1 Traveller

Economy

April
August
September
October
November
December
January
February
March

April is by far the best month, wherein you can get cheapest flights for Seattle to Kathmandu. Meanwhile, is perceived as the expensive month due to the varying factors. That’s why it’s highly advised to make advanced online flight booking to save huge amounts of money.

disclDisclaimer - All the above-mentioned fares were found within last 48 hrs. The displayed fares are based on historical data and are subject to change. The fares cannot be guaranteed at the time of booking.

Best Flight From Seattle To Kathmandu

Delta Airlines
Delta Airlines

Seattle

22:40

Seattle

Seattle Tacoma International Airport

Sat , 18 Apr 2026

30h 45m
ellipse
2 Stop

Kathmandu

18:10

Kathmandu

Tribhuvan International Airport

Mon, 20 Apr 2026

£432
Qatar Airways
Qatar Airways

Seattle

16:30

Seattle

Seattle Tacoma International Airport

Sat , 18 Apr 2026

35h 45m
ellipse
1 Stop

Kathmandu

17:00

Kathmandu

Tribhuvan International Airport

Mon, 20 Apr 2026

£432
Delta Airlines
Delta Airlines

Seattle

22:40

Seattle

Seattle Tacoma International Airport

Sat , 18 Apr 2026

29h 05m
ellipse
2 Stop

Kathmandu

16:30

Kathmandu

Tribhuvan International Airport

Mon, 20 Apr 2026

£461
Singapore Airlines
Singapore Airlines

Seattle

10:15

Seattle

Seattle Tacoma International Airport

Sat , 18 Apr 2026

22h 30m
ellipse
1 Stop

Kathmandu

21:30

Kathmandu

Tribhuvan International Airport

Sun, 19 Apr 2026

£473
Qatar Airways
Qatar Airways

Seattle

16:30

Seattle

Seattle Tacoma International Airport

Sat , 18 Apr 2026

26h 40m
ellipse
1 Stop

Kathmandu

07:55

Kathmandu

Tribhuvan International Airport

Mon, 20 Apr 2026

£484
Cathay Pacific airways
Cathay Pacific airways

Seattle

11:45

Seattle

Seattle Tacoma International Airport

Sat , 18 Apr 2026

21h 15m
ellipse
1 Stop

Kathmandu

21:45

Kathmandu

Tribhuvan International Airport

Sun, 19 Apr 2026

£550
EVA Air
EVA Air

Seattle

01:30

Seattle

Seattle Tacoma International Airport

Sat , 18 Apr 2026

31h 30m
ellipse
2 Stop

Kathmandu

21:45

Kathmandu

Tribhuvan International Airport

Sun, 19 Apr 2026

£567
EVA Air
EVA Air

Seattle

01:30

Seattle

Seattle Tacoma International Airport

Sat , 18 Apr 2026

25h 50m
ellipse
2 Stop

Kathmandu

16:05

Kathmandu

Tribhuvan International Airport

Sun, 19 Apr 2026

£614
Cathay Pacific airways
Cathay Pacific airways

Seattle

11:45

Seattle

Seattle Tacoma International Airport

Mon , 20 Apr 2026

21h 15m
ellipse
1 Stop

Kathmandu

21:45

Kathmandu

Tribhuvan International Airport

Tue, 21 Apr 2026

£666
American Airlines
American Airlines

Seattle

23:26

Seattle

Seattle Tacoma International Airport

Sat , 18 Apr 2026

45h 19m
ellipse
2 Stop

Kathmandu

09:30

Kathmandu

Tribhuvan International Airport

Tue, 21 Apr 2026

£674
Turkish Airlines
Turkish Airlines

Seattle

19:10

Seattle

Seattle Tacoma International Airport

Sat , 18 Apr 2026

22h 20m
ellipse
1 Stop

Kathmandu

06:15

Kathmandu

Tribhuvan International Airport

Mon, 20 Apr 2026

£679
ellipse

Early Morning Flight Seattle to Kathmandu

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Cheapest Flight
Found
£567
group
Average Flight
Time
31h 30m
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Date/Time
18 Apr 2026
01:30 AM
plane
Airlines
EVA Air
Ellipse

Late Night Flight Seattle to Kathmandu

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Cheapest Flight
Found
£432
group
Average Flight
Time
30h 45m
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Date/Time
18 Apr 2026
22:40 PM
plane
Airlines
Delta Airlines

Flights from Seattle to Kathmandu with Easemytrip

Flying from Seattle to Kathmandu has never been easier. Whether you’re planning a short business trip, a weekend getaway, or reconnecting with family and friends, Easemytrip brings you the best deals, seamless booking, and flexible options for this popular flight route. Our platform is built to help travellers like you compare flight prices, explore direct and connecting options, and find the perfect departure time — all within a few clicks.

The air route between Seattle to Kathmandu is one of the most frequently travelled, offering reliable services from top airlines and excellent connectivity between Seattle Tacoma International Airport (SEA) and Tribhuvan International Airport (KTM). You can expect a flight distance of approximately 11211 km, and most direct services cover it in around 17:08.

Let’s take a closer look at everything you need to know before booking your flight from Seattle to Kathmandu.

Travel Overview: Seattle to Kathmandu

Flight Details Information
Route Distance 11211 km
Average Flight Time 17:08 hrs
Departure Airport Seattle Tacoma International Airport (SEA)
Arrival Airport Tribhuvan International Airport (KTM)
Cabin Classes Available Economy Class, Premium Economy, Business Class, First Class
Direct Flights NO
Common Airlines Delta Airlines, Qatar Airways, Singapore Airlines, Cathay Pacific airways

The route is serviced regularly by both full-service and budget airlines, catering to all types of travellers — from those looking for no-frills budget options to those preferring business and first-class comfort. If you're flying for business, early morning weekday flights are a great choice, while leisure travellers often opt for weekend and evening departures.

Read more

FAQs about flights from Seattle to Kathmandu

Are there direct flights from Seattle to Kathmandu?

How early should I book?

Which airlines offer the most frequent service?

Is it cheaper to fly round-trip or one-way?

Can I mix airlines for departure and return?

Is it possible to change or cancel my booking after confirmation?

Can I book additional baggage or in-flight services in advance?