SEA - KTM

₹ 91,598 Find Cheap Flights from Seattle to Kathmandu – Compare and Save

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Everything you should know

Cheapest return flight
₹ 122,067
Typical prices: ₹ 100,918-₹ 139,431
Qatar Airways
Wed 14/2Sun 11/3
SEA - KTM • 1 stop
Cheapest one-way flight
₹ 91,598
Typical prices: ₹ 50,578-₹ 91,163
Turkish Airlines
Thu 1/3
SEA - KTM • 1 stop
Direct flights
There are currently no direct flights between Seattle and Kathmandu. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 26 weeks in advance save around 39% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 20% price drop
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Cheapest • Avg ₹ 118,190 (return)
Shortest trip • 22h 29m (one-way)
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Insights
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We hope you enjoy your trip to Kathmandu!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Kathmandu (SEA-KTM)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Seattle to Kathmandu

Sun, 14 Feb - Thu, 11 Mar
Qatar Airways Logo
15:50 - 16:15SEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
34h 40m1 stop Doha Hamad Intl
Qatar Airways Logo
17:30 - 11:40KTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
31h 55m1 stop Doha Hamad Intl
₹ 122,067Qatar Airways
2 days ago
Sun, 4 Apr - Wed, 28 Apr
Qatar Airways Logo
16:25 - 16:45SEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
35h 35m1 stop Doha Hamad Intl
Qatar Airways Logo
10:05 - 12:55KTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
39h 35m1 stop Doha Hamad Intl
₹ 122,257Qatar Airways
1 day ago
Thu, 18 Feb - Fri, 12 Mar
Qatar Airways Logo
11:31 - 16:15SEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
38h 59m2 stops San Francisco Doha Hamad Intl
Qatar Airways Logo
19:00 - 11:40KTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
30h 25m1 stop Doha Hamad Intl
₹ 123,971Qatar Airways
2 days ago
Sun, 14 Feb - Fri, 12 Mar
Qatar Airways Logo
15:50 - 16:15SEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
34h 40m1 stop Doha Hamad Intl
Qatar Airways Logo
17:30 - 19:57KTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
40h 12m2 stops Doha Hamad Intl San Francisco
₹ 124,733Qatar Airways
2 days ago
Wed, 3 Mar - Fri, 19 Mar
Qatar Airways Logo
21:40 - 17:45SEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
54h 20m2 stops San Francisco Doha Hamad Intl
Qatar Airways Logo
17:30 - 12:40KTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
31h 55m1 stop Doha Hamad Intl
₹ 125,114Qatar Airways
8 hours ago
Sun, 14 Feb - Thu, 11 Mar
Qatar Airways Logo
15:44 - 16:15SEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
58h 46m2 stops San Francisco Doha Hamad Intl
Qatar Airways Logo
19:00 - 11:40KTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
30h 25m1 stop Doha Hamad Intl
₹ 125,209Qatar Airways
2 days ago
Sat, 20 Feb - Fri, 12 Mar
Qatar Airways Logo
15:50 - 17:45SEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
36h 10m1 stop Doha Hamad Intl
Qatar Airways Logo
19:00 - 11:40KTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
30h 25m1 stop Doha Hamad Intl
₹ 125,875Qatar Airways
2 days ago
Sat, 10 Apr - Fri, 30 Apr
Qatar Airways Logo
16:25 - 16:45SEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
35h 35m1 stop Doha Hamad Intl
Qatar Airways Logo
10:05 - 12:25KTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
39h 05m1 stop Doha Hamad Intl
₹ 126,066Qatar Airways
1 day ago
Sun, 14 Feb - Sat, 13 Mar
Qatar Airways Logo
15:50 - 17:45SEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
36h 10m1 stop Doha Hamad Intl
Qatar Airways Logo
17:30 - 11:40KTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
31h 55m1 stop Doha Hamad Intl
₹ 126,351Qatar Airways
2 days ago
Mon, 22 Feb - Wed, 3 Mar
Qatar Airways Logo
08:10 - 16:15SEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
42h 20m2 stops San Francisco Doha Hamad Intl
Qatar Airways Logo
17:30 - 18:56KTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
39h 11m2 stops Doha Hamad Intl San Francisco
₹ 126,637Qatar Airways
19 hours ago
Booking Insights

Price, demand, and travel trends for Seattle to Kathmandu flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

How much is a return flight from Seattle to Kathmandu?

Return flights from Seattle to Kathmandu typically range from ₹ 100,918 to ₹ 139,431. The lowest price found in the past 5 days was ₹ 122,067 on Qatar Airways.

What's the cheapest day of the week to fly from Seattle to Kathmandu?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Seattle to Kathmandu. It's 12% cheaper than the average day, while Sunday is the most expensive, with prices 8% higher.

What is the cheapest month to fly from Seattle to Kathmandu?

•September is the cheapest month to fly from Seattle to Kathmandu at ₹ 95,025 return.
•July (₹ 145,204) and June (₹ 142,348) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 52% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Seattle to Kathmandu the cheapest?

Flights from Seattle to Kathmandu are cheapest 26 weeks before departure. Booking in this window typically costs about 39% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for Seattle to Kathmandu flights

Low season

April

Cheapest flight

₹ 91,598
Beat the crowds with an average 22% drop in travellers.
The most popular month to fly with an average 59% increase in travellers.
One-way flight from Seattle to Kathmandu

When to book flights from Seattle to Kathmandu

Are your dates flexible? Find out the best times to travel from Seattle to Kathmandu based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Seattle to Kathmandu flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • How long is a flight from Seattle to Kathmandu?

    A direct flight from Seattle to Kathmandu takes 00m, covering 18,031 km.

  • Do I need a passport to fly from Seattle to Kathmandu?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Seattle to Kathmandu flight?

    Return flights from Seattle to Kathmandu range from ₹ 100,918 to ₹ 139,431, with an average of ₹ 118,089 over the past 12 months. Anything below ₹ 100,918 counts as a good deal.

  • How expensive are last-minute Seattle to Kathmandu flights?

    Last-minute fares on this route (booked within two weeks of departure) run 30% above the ₹ 118,089 route average. Book 26 weeks before departure for the lowest fares.

  • How are flight prices from Seattle to Kathmandu looking right now?

    One-way fares from Seattle to Kathmandu are currently higher than usual. Average one-way flight prices are about ₹ 324,115, which is 363% above the typical average for this route.

  • Which airports can I use when flying from Seattle to Kathmandu?

    Flights from Seattle to Kathmandu usually depart from Seattle/Tacoma Intl (SEA) and arrive at Kathmandu Tribhuvan (KTM).

  • Which airports do connecting flights from Seattle to Kathmandu pass through?

    One-stop flights from Seattle to Kathmandu most commonly connect through:

    • Doha Hamad Intl (DOH) – 41% of one-stop connections
    • Singapore Changi (SIN) – 34% of one-stop connections
    • Hong Kong Intl (HKG) – 13% of one-stop connections
    • Istanbul (IST) – 10% of one-stop connections

  • Can I save money by using flexible dates for flights from Seattle to Kathmandu?

    Yes. Flexible dates can save you up to 19% on flights from Seattle to Kathmandu. Tuesday is the cheapest departure day at ₹ 104,166 return on average, while Sunday is the most expensive at ₹ 127,875, a difference of ₹ 23,709.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different stopover airport from Seattle to Kathmandu?

    Flying via Hong Kong Intl (HKG) gives the shortest average 1-stop total travel time of 22h 29m, compared to 24h 18m via Singapore Changi (SIN) and 29h 12m via Dubai Intl (DXB).

  • What is the time difference between Seattle and Kathmandu?

    Kathmandu is 12 hours ahead of Seattle (Nepal Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • Where can you get information at SEA?

    If you have any queries while at the airport, you can approach airport volunteers who are easily identifiable with their blue jackets. They are friendly and will offer whatever information you need concerning airport services. There are also customer services representatives who wear red vests and carry an iPad to help passengers with directions around the airport.

  • Is SEA baby-friendly?

    There are nursing rooms in the airport to provide mothers with the quiet and privacy needed to take care of their infants. The rooms are equipped with changing tables, sinks, rocking chairs, and power outlets. One is located inside the Kid's Play Area, at S Gate mezzanine level, Gates A9, C10, N2, D19, D23, and the main terminal at the train station. If you are a member of the military or related to one, you can use the nursing room inside the USO lounge located landside, mezzanine level, on the 2nd floor.

  • Are there lounges at KTM?

    If you wish to relax and unwind a little before leaving the airport, you can take advantage of the airport’s onsite lounges. The executive lounge is located on the 2nd floor of the international terminal, landside. Passengers traveling first or business class can access the Thai Airways Royal silk lounge at the international terminal, landside.

  • Can you find luggage trolleys at KTM?

    Perhaps you are heavy-laden with bags and need a hand. If so, you would be happy to know that there are trolleys available free of charge at the airport. You will find them on the upper and lower level of arrivals and in the baggage claim area.

Your guide to booking Seattle to Kathmandu flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Sunday. On this route, Tuesday flights average ₹ 104,166, which is about ₹ 23,709 less than Sunday fares (19% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 26 weeks before you fly. On this route, that window historically saves about 39% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Seattle to Kathmandu trip for September. Fares historically average ₹ 95,025 return in that month – typically ₹ 50,179 less than the most expensive month, which is July (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Kathmandu Tribhuvan Airport.

    • Hotel Tibet International
  • On the day your flight from Seattle Airport (SEA) to Kathmandu Tribhuvan Airport (KTM) is scheduled, it is advisable to get to the airport at least 2 hours before departure. SEA requires all passengers to go through several security checkpoints to uphold security in the airport, which may be time-consuming. Arriving early at the airport reduces the risk of missing your flight.
  • If you still have time to kill before your flight, you could relax with a massage at SEA. There is a massage bar located airside in the N gates, and it is operational between 6 am and 7 pm during the weekdays and between 7 am and 8 pm during the weekends. A foot or chair massage will make you feel very relaxed before you board the flight to KTM.
  • Suppose you want to get to SEA from nearby towns using public transport. If that is the case, you have the option of using a bus, a taxi, or a train. King County Metro buses drop passengers on the street close to the airport next to the Sea-Tac Airport LINK Light rail station. Alternatively, you can use the LINK Light rail system to get to the airport, whose station is located on the 4th floor of the parking garage.
  • When you get to KTM, chances are that you will be exhausted because of the journey and the jetlag that comes with it. While there are no onsite hotels in the airport, there are several within walking distance. They include Hotel Marinha, Summit Residency, and Kathmandu Airport hotel.
  • If you wish to convert your currency from USD to rupees once you get to KTM, you can do so at the currency exchange counters in the Arrivals lounge of the full-service banking branch at the Departures lounge.

More options for your flight from Seattle to Kathmandu

Complete your trip to Kathmandu with a hotel stay or car hire