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$518+ Cheap flights from Kathmandu (KTM) to Washington

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/30. Fares are subject to change and may not be available on all flights or dates of travel.
KTM — SEA
mai 6 — mai 131
mar. 5/6
mar. 5/13
1 adult, Economy
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Cheap flight deals from Kathmandu to Washington

Keep the following information in mind while searching for Kathmandu to Washington flight deals. Data was last updated mai 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,335
(StudentUniverse)

One-way from

$519
(Kiwi.com)

Popular in

November

Cheapest in

October

Average price

$1,636
Provider with most accurate pricing for Kathmandu Tribhuvan-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Kathmandu Tribhuvan-Seattle/Tacoma Intl flights.
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From Kathmandu Tribhuvan to Washington
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One-way flight from Kathmandu Tribhuvan to Washington
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Highest demand for flights based on searches. 3% potential increase in price ($55 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find flight deals from Kathmandu to Washington

Cheapest flights from Kathmandu to Washington
Explore the most affordable flight options available from Kathmandu to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on mai 1, 2025.

This StudentUniverse deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 9/2011:00 pmKTM - SEA
1 stop70h 30mSingapore Airlines
dim. 3/159:45 amSEA - KTM
1 stop47h 20mSingapore Airlines
Deal found 4/30$1,045
This Trip.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 7/117:40 amKTM - SEA
1 stop22h 20mMultiple Airlines
sam. 8/3010:15 amSEA - KTM
2 stops38h 00mMultiple Airlines
Deal found 4/30$1,355
This FlightHub deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 7/107:40 amKTM - SEA
1 stop22h 20mTurkish Airlines
dim. 8/317:10 pmSEA - KTM
1 stop22h 20mTurkish Airlines
Deal found 4/30$1,394
This CheapOair deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 5/86:00 pmKTM - SEA
2 stops51h 20mQatar Airways
dim. 10/124:30 pmSEA - KTM
1 stop35h 30mQatar Airways
Deal found 4/30$1,573
This Emirates deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 7/911:55 pmKTM - SEA
1 stop26h 15mEmirates
mar. 9/25:15 pmSEA - KTM
1 stop26h 00mEmirates
Deal found 4/30$1,675
This Mytrip deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 5/2211:30 pmKTM - PDX
3 stops32h 15mMultiple Airlines
lun. 6/27:40 pmPDX - KTM
2 stops35h 40mMultiple Airlines
Deal found 4/29$1,734
This KLM deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 5/224:40 pmKTM - PDX
2 stops31h 25mKLM
lun. 6/21:15 pmPDX - KTM
2 stops31h 50mKLM
Deal found 4/29$1,811
This KLM deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 7/124:40 pmKTM - SEA
2 stops35h 55mKLM
sam. 8/302:10 pmSEA - KTM
2 stops30h 55mKLM
Deal found 4/30$1,884
This KAYAK deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 7/134:20 pmKTM - SEA
2 stops42h 35mEtihad Airways
jeu. 8/2811:25 pmSEA - KTM
2 stops51h 30mEtihad Airways
Deal found 4/30$1,931
This FlightHub deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 7/1311:00 pmKTM - SEA
2 stops32h 50mCathay Pacific
ven. 8/298:05 pmSEA - KTM
2 stops36h 55mCathay Pacific
Deal found 4/30$2,522

Cheapflights Fare Finder

Customize your flight search to find flights from Kathmandu to Washington that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated mai 1, 2025.
Use the filters below to find and compare flights from Kathmandu to Washington that are best for you.

Fly from

Kathmandu

Fly to

Washington

Route

Depart

Return

Price

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

sam. 9/20

11:00 pm-8:45 am

1 stop70h 30m

Seattle/Tacoma Intl

dim. 3/15

9:45 am-9:50 pm

1 stop47h 20m

$1,045

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

ven. 7/11

7:40 am-5:15 pm

1 stop22h 20m

Seattle/Tacoma Intl

sam. 8/30

10:15 am-1:00 pm

2 stops38h 00m

$1,355

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

jeu. 7/10

7:40 am-5:15 pm

1 stop22h 20m

Seattle/Tacoma Intl

dim. 8/31

7:10 pm-6:15 am

1 stop22h 20m

$1,394

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

mer. 7/9

11:55 pm-1:25 pm

1 stop26h 15m

Seattle/Tacoma Intl

dim. 8/31

5:15 pm-11:05 pm

1 stop41h 05m

$1,675

KathmanduPortland

KTM - PDX

KTMPDX

Kathmandu Tribhuvan

jeu. 5/22

11:30 pm-7:00 pm

3 stops32h 15m

Portland

lun. 6/2

7:40 pm-8:05 pm

2 stops35h 40m

$1,734

KathmanduPortland

KTM - PDX

KTMPDX

Kathmandu Tribhuvan

jeu. 5/22

4:40 pm-11:20 am

2 stops31h 25m

Portland

lun. 6/2

1:15 pm-9:50 am

2 stops31h 50m

$1,811

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

sam. 7/12

4:40 pm-3:50 pm

2 stops35h 55m

Seattle/Tacoma Intl

sam. 8/30

2:10 pm-9:50 am

2 stops30h 55m

$1,884

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

mer. 7/9

6:00 pm-12:45 pm

1 stop31h 30m

Seattle/Tacoma Intl

mar. 9/2

11:30 am-8:50 am

2 stops32h 35m

$1,896

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

dim. 7/13

4:20 pm-10:10 pm

2 stops42h 35m

Seattle/Tacoma Intl

jeu. 8/28

11:25 pm-3:40 pm

2 stops51h 30m

$1,931

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

dim. 7/13

11:00 pm-7:05 pm

2 stops32h 50m

Seattle/Tacoma Intl

ven. 8/29

8:05 pm-9:45 pm

2 stops36h 55m

$2,522

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 16 results
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Best time to book a flight from Kathmandu to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Kathmandu with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Kathmandu to Washington

What is the cheapest month to book a flight from Kathmandu to State of Washington?

Currently, January is the cheapest month in which you can book a flight from Kathmandu to State of Washington (average of $238). Flying from Kathmandu to State of Washington in July is currently the most expensive (average of $405). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from KTM to WA?

Find hourly flight availability from Kathmandu to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated mai 1, 2025.

When flying from Kathmandu to State of Washington, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Washington by month

Plan your trip to Washington by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in State of Washington ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.

Temperature in Washington by month

Plan your trip to Washington by taking into account the average temperature totals by month.

If weather is an important factor for your trip to State of Washington, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington. Reviews last updated mai 1, 2025.
Korean Air
8.4
Very good
1,068 reviews

Boarding

8.5

Overall

8.4

Entertainment

8.2

Crew

8.7

Comfort

8.3

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,068 reviews
Korean Air
8.4
Very good
1,068 reviews

Boarding

8.5

Overall

8.4

Entertainment

8.2

Crew

8.7

Comfort

8.3

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Singapore Airlines
8.1
Very good
1,292 reviews
Korean Air
8.4
Very good
1,068 reviews

Boarding

8.5

Overall

8.4

Entertainment

8.2

Crew

8.7

Comfort

8.3

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Emirates
8.0
Very good
3,215 reviews
Korean Air
8.4
Very good
1,068 reviews

Boarding

8.5

Overall

8.4

Entertainment

8.2

Crew

8.7

Comfort

8.3

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
KLM
7.8
Good
1,334 reviews
Korean Air
8.4
Very good
1,068 reviews

Boarding

8.5

Overall

8.4

Entertainment

8.2

Crew

8.7

Comfort

8.3

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Thai Airways
7.7
Good
325 reviews
Korean Air
8.4
Very good
1,068 reviews

Boarding

8.5

Overall

8.4

Entertainment

8.2

Crew

8.7

Comfort

8.3

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Kathmandu to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Kathmandu to Washington?

    For a flight from Kathmandu to Washington, you will be flying from Tribhuvan. Kathmandu Tribhuvan (KTM) is just 2.5 mi from the center of the city.

  • What are the cheapest airlines to fly from Kathmandu to State of Washington one-way?

    One-way options have recently been found by users for as low as $999 on Singapore Airlines. Other airlines that offer cheap prices include Thai Airways from $1,163 and Qatar Airways from $1,184 one-way.

  • What are the most popular routes from Kathmandu to State of Washington?

    Most travelers choose Kathmandu Tribhuvan - Seattle/Tacoma Intl, Kathmandu Tribhuvan - Portland or Kathmandu Tribhuvan - Spokane when deciding on the best route from Kathmandu to State of Washington.

  • Can I find deals for flights from Kathmandu to Washington that include hotel bookings?

    Yes. In addition to deals on Kathmandu to Washington flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kathmandu to Washington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kathmandu to Washington.

  • Can I find deals for business class flights from Kathmandu to Washington?

    Yes. Cheapflights offers flight deals from Kathmandu to Washington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Kathmandu to State of Washington?

    Currently, January is the cheapest month in which you can book a flight from Kathmandu to State of Washington (average of $238). Flying from Kathmandu to State of Washington in July is currently the most expensive (average of $405). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Kathmandu to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Kathmandu to Washington

Discover the top 5 airlines that operate flights from Kathmandu to Washington. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated mai 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$1,103Average$1,582FlexibilityNo cancel feeOn-time81%
Korean AirCheapest$1,174Average$1,373FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$1,311Average$1,458FlexibilityNo cancel feeOn-time77%
Qatar AirwaysCheapest$1,534Average$1,830FlexibilityNo cancel feeOn-time68%
EmiratesCheapest$1,601Average$1,724FlexibilityNo cancel feeOn-time75%

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