￥121,040 Cheap Flights from Seattle (SEA) to Kathmandu (KTM)

View ￥121,040 flight on Sun, Nov 2, 2025Opens in a new window

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

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Cheap Flights from Seattle to Kathmandu (SEA-KTM)

Prices were available within the past 7 days and start at ￥121,040 for one-way flights and ￥186,940 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, Oct 18 - Sat, Oct 25
SEA
Seattle
KTM
Kathmandu
￥186,940 Roundtrip, just found
￥186,940
Roundtrip
just found
Select Alaska Airlines flight, departing Sat, Oct 18 from Seattle to Kathmandu, returning Sat, Oct 25, priced at ￥186,940 just found
Cathay Pacific
Sat, Oct 18 - Sat, Oct 25
SEA
Seattle
KTM
Kathmandu
￥189,840 Roundtrip, just found
￥189,840
Roundtrip
just found
Select Cathay Pacific flight, departing Sat, Oct 18 from Seattle to Kathmandu, returning Sat, Oct 25, priced at ￥189,840 just found
Alaska Airlines
Sat, Oct 18 - Sat, Oct 25
SEA
Seattle
KTM
Kathmandu
￥198,140 Roundtrip, just found
￥198,140
Roundtrip
just found
Select Alaska Airlines flight, departing Sat, Oct 18 from Seattle to Kathmandu, returning Sat, Oct 25, priced at ￥198,140 just found
Cathay Pacific
Sat, Oct 18 - Sat, Oct 25
SEA
Seattle
KTM
Kathmandu
￥200,860 Roundtrip, just found
￥200,860
Roundtrip
just found
Select Cathay Pacific flight, departing Sat, Oct 18 from Seattle to Kathmandu, returning Sat, Oct 25, priced at ￥200,860 just found
Cathay Pacific
Sat, Oct 18 - Sat, Oct 25
SEA
Seattle
KTM
Kathmandu
￥201,040 Roundtrip, just found
￥201,040
Roundtrip
just found
Select Cathay Pacific flight, departing Sat, Oct 18 from Seattle to Kathmandu, returning Sat, Oct 25, priced at ￥201,040 just found
Alaska Airlines
Sat, Oct 18 - Sat, Oct 25
SEA
Seattle
KTM
Kathmandu
￥211,250 Roundtrip, just found
￥211,250
Roundtrip
just found
Select Alaska Airlines flight, departing Sat, Oct 18 from Seattle to Kathmandu, returning Sat, Oct 25, priced at ￥211,250 just found
Cathay Pacific
Sat, Oct 18 - Sat, Oct 25
SEA
Seattle
KTM
Kathmandu
￥214,150 Roundtrip, just found
￥214,150
Roundtrip
just found
Select Cathay Pacific flight, departing Sat, Oct 18 from Seattle to Kathmandu, returning Sat, Oct 25, priced at ￥214,150 just found
Air Canada
Sat, Oct 18 - Sat, Oct 25
SEA
Seattle
KTM
Kathmandu
￥222,450 Roundtrip, just found
￥222,450
Roundtrip
just found
Select Air Canada flight, departing Sat, Oct 18 from Seattle to Kathmandu, returning Sat, Oct 25, priced at ￥222,450 just found
Emirates
Sun, Nov 2 - Sun, Nov 30
SEA
Seattle
KTM
Kathmandu
￥222,520 Roundtrip, found 1 day ago
￥222,520
Roundtrip
found 1 day ago
Select Emirates flight, departing Sun, Nov 2 from Seattle to Kathmandu, returning Sun, Nov 30, priced at ￥222,520 found 1 day ago
Qatar Airways
Sat, Oct 18 - Sat, Oct 25
SEA
Seattle
KTM
Kathmandu
￥317,640 Roundtrip, just found
￥317,640
Roundtrip
just found
Select Qatar Airways flight, departing Sat, Oct 18 from Seattle to Kathmandu, returning Sat, Oct 25, priced at ￥317,640 just found

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

September is typically the cheapest month to fly

From ￥149,832 - ￥266,186 per traveler.

Frequently asked questions

How much is a flight from Sea-Tac Airport to Tribhuvan Intl. Airport (KTM)?
Pack your bags, because round-trip journeys from Sea-Tac Airport to Tribhuvan Intl. Airport (KTM) start from ￥186,940. That's based on fares listed within the last 7 days on Expedia for flights departing within the next year. Prices can rise quickly, so book now to lock in the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Sea-Tac Airport to Tribhuvan Intl. Airport?
This differs from airline to airline, as each has its own terms and conditions. Head to the Customer Service Portal, where there are easy instructions on how to cancel your flight online.
How do I find cheap flights from SEA to Tribhuvan Intl. Airport (KTM) 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 SEA to Tribhuvan Intl. Airport (KTM) flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from Sea-Tac Airport to Tribhuvan Intl. Airport (KTM)?
From Seattle - Tacoma Intl. Airport (SEA) to KTM, you'll be in the sky for around 19 hours and 15 minutes. If you've been wanting to get stuck into that amazing novel, now's the best time to do it.
How far is the flight from Seattle - Tacoma Intl. Airport (SEA) to KTM?
With a flight distance of 11,200 kilometers from Seattle - Tacoma Intl. Airport (SEA) to Tribhuvan Intl. Airport, this is a long-haul journey. Ensure that you keep well hydrated and get up to stretch your legs every so often.
Which airlines fly direct from Sea-Tac Airport to Tribhuvan Intl. Airport?
At present, no airlines offer direct flights from Sea-Tac Airport to KTM. You'll have to book a flight with one or more stops. To get the best connections and price, lock in your fare well ahead of time.
Are Sea-Tac Airport to KTM flight tickets cheaper when they're purchased at the last minute?
It is possible to score amazing last-minute deals from SEA to Tribhuvan Intl. Airport (KTM), but it can also be hit-or-miss. As many airlines publish prices up to 12 months in advance, it's worthwhile keeping an eye on fares early and being ready to book when you spot a good bargain. Expedia compares air carrier prices and updates flight deals frequently, so you can be certain you're always getting the latest offers.

Travel information

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Tribhuvan Intl.
Roundtrip price
￥186,940
Distance
11146 km

Book with confidence

Book with confidence

Seattle to Kathmandu Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Seattle to will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Kathmandu.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with SEA to KTM flights that won’t make your bank account wince. Ready to temporarily leave behind Seattle for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to KTM with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Seattle to Kathmandu Flights

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