Kathmandu

$462+ Cheap flights from Washington, D.C. (WAS) to Kathmandu (KTM)

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 12/29. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — KTM
Oct 17 — Oct 241
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Cheapflights Tip: The best prices from Washington, D.C. to Kathmandu Tribhuvan are usually found in August or September, booked 85 days in advance, depart on a Monday or Tuesday and return on a Thursday

Cheap flight deals from Washington, D.C. to Kathmandu

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Kathmandu (KTM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 17, 2025.

Round-trip from

$1,087
(FlightHub)

One-way from

$462
(Booking.com)

Popular in

December

Cheapest in

August

Average price

$1,332
From Washington, D.C. (WAS) to Kathmandu Tribhuvan
One-way flight from Washington, D.C. (WAS) to Kathmandu Tribhuvan
Highest demand for flights based on searches. 10% potential increase in price ($174 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($50 potential savings vs. average RT price).
Average for round-trip flights in September 2025

Find flight deals from Washington, D.C. to Kathmandu

Cheapest flights from Washington, D.C. to Kathmandu
Explore the most affordable flight options available from Washington, D.C. to Kathmandu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This FlightHub deal was found by Cheapflights users on 9/15. 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.
Sun 11/21:30 pmIAD - KTM
2 stops33h 35mIndiGo
Mon 12/1510:50 amKTM - IAD
2 stops43h 10mIndiGo
Deal found 9/15$1,087
This FlightHub deal was found by Cheapflights users on 9/16. 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.
Sat 11/110:10 pmIAD - KTM
2 stops31h 45mIndiGo
Tue 12/1610:50 amKTM - IAD
2 stops43h 10mIndiGo
Deal found 9/16$1,089
This Trip.com deal was found by Cheapflights users on 9/17. 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.
Wed 9/2410:05 pmIAD - KTM
2 stops34h 20mMultiple Airlines
Tue 10/71:25 pmKTM - IAD
2 stops36h 30mMultiple Airlines
Deal found 9/17$1,092
This Trip.com deal was found by Cheapflights users on 9/15. 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.
Fri 9/199:00 pmIAD - KTM
2 stops27h 10mMultiple Airlines
Sun 10/510:55 amKTM - IAD
2 stops38h 30mMultiple Airlines
Deal found 9/15$1,096
This Trip.com deal was found by Cheapflights users on 9/17. 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.
Tue 9/3010:05 pmIAD - KTM
2 stops31h 50mMultiple Airlines
Sun 10/510:50 amKTM - IAD
2 stops39h 05mMultiple Airlines
Deal found 9/17$1,101
This Trip.com deal was found by Cheapflights users on 9/17. 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.
Sat 9/276:50 pmIAD - KTM
2 stops37h 35mMultiple Airlines
Fri 11/211:45 pmKTM - IAD
2 stops35h 45mMultiple Airlines
Deal found 9/17$1,109
This FlightHub deal was found by Cheapflights users on 9/16. 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.
Fri 11/281:30 pmIAD - KTM
2 stops36h 40mIndiGo
Mon 12/1510:50 amKTM - IAD
2 stops43h 10mIndiGo
Deal found 9/16$1,111
This FlightHub deal was found by Cheapflights users on 9/15. 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.
Sat 11/221:30 pmIAD - KTM
2 stops39h 25mIndiGo
Sat 12/1310:50 amKTM - IAD
2 stops43h 10mIndiGo
Deal found 9/15$1,117
This FlightHub deal was found by Cheapflights users on 9/16. 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.
Wed 11/269:10 pmIAD - KTM
2 stops29h 00mIndiGo
Fri 12/194:40 pmKTM - IAD
2 stops37h 20mIndiGo
Deal found 9/16$1,119
This FlightHub deal was found by Cheapflights users on 9/17. 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.
Sat 11/229:10 pmIAD - KTM
2 stops25h 55mIndiGo
Wed 12/244:40 pmKTM - IAD
2 stops37h 20mIndiGo
Deal found 9/17$1,121
This Trip.com deal was found by Cheapflights users on 9/17. 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.
Sun 9/2810:05 pmIAD - KTM
2 stops31h 50mMultiple Airlines
Sun 10/122:00 pmKTM - IAD
2 stops35h 55mMultiple Airlines
Deal found 9/17$1,122
This oojo deal was found by Cheapflights users on 9/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/75:20 pmDCA - KTM
2 stops51h 30mAir India
Sun 11/99:00 pmKTM - DCA
2 stops28h 35mAir India
Deal found 9/15$1,275

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Kathmandu 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 September 17, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Kathmandu that are best for you.

Fly from

Washington, D.C.

Fly to

Kathmandu

Route

Depart

Return

Price

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sun 10/5

10:55 am-9:55 am

2 stops37h 15m

Kathmandu Tribhuvan

Sat 10/11

10:55 am-8:40 am

2 stops55h 30m

$1,388

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Fri 10/31

11:40 am-5:30 pm

1 stop20h 05m

Kathmandu Tribhuvan

Tue 11/11

9:35 am-3:55 pm

1 stop41h 05m

$1,399

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sat 11/1

9:05 pm-4:25 pm

1 stop33h 35m

Kathmandu Tribhuvan

Tue 12/16

5:40 pm-8:20 am

1 stop25h 25m

$1,399

Washington, D.C.Kathmandu

DCA - KTM

DCAKTM

Washington, D.C. Reagan-National

Wed 10/22

6:25 am-11:45 pm

2 stops31h 35m

Kathmandu Tribhuvan

Wed 11/19

2:00 pm-2:59 pm

2 stops35h 44m

$1,419

Washington, D.C.Kathmandu

DCA - KTM

DCAKTM

Washington, D.C. Reagan-National

Mon 10/27

6:24 am-11:00 pm

2 stops30h 51m

Kathmandu Tribhuvan

Sun 11/16

7:35 am-2:50 pm

2 stops42h 00m

$1,429

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Thu 1/1

9:10 pm-9:05 am

1 stop25h 10m

Kathmandu Tribhuvan

Wed 1/28

9:50 am-3:50 pm

1 stop40h 45m

$1,451

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Tue 1/6

10:30 am-10:40 pm

1 stop25h 25m

Kathmandu Tribhuvan

Wed 1/28

3:00 pm-8:10 am

1 stop27h 55m

$1,487

Washington, D.C.Kathmandu

DCA - KTM

DCAKTM

Washington, D.C. Reagan-National

Tue 9/30

5:42 pm-8:05 pm

2 stops40h 38m

Kathmandu Tribhuvan

Sat 10/11

10:05 am-10:56 pm

2 stops46h 36m

$1,492

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sun 11/9

10:40 am-4:25 pm

1 stop19h 00m

Kathmandu Tribhuvan

Tue 11/18

6:45 pm-8:20 am

1 stop24h 20m

$1,505

Washington, D.C.Kathmandu

DCA - KTM

DCAKTM

Washington, D.C. Reagan-National

Sat 10/18

6:25 am-8:05 pm

2 stops27h 55m

Kathmandu Tribhuvan

Sun 11/2

5:30 pm-2:50 pm

2 stops32h 05m

$1,505

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 55 results
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Best time to book a flight from Washington, D.C. to Kathmandu

Have a flexible travel schedule? Discover the best time to fly to Kathmandu from Washington, D.C. 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 Washington, D.C. to Kathmandu

How far ahead should I book a flight from Washington, D.C. to Kathmandu?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Kathmandu. Price data was last updated on September 12, 2025.

The best time to book flights from Washington, D.C. to Kathmandu is 85 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Washington, D.C. to Kathmandu?

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to Kathmandu (average of $1,205). Flying from Washington, D.C. to Kathmandu in June is currently the most expensive (average of $1,683). 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 WAS to KTM?

Find hourly flight availability from Washington, D.C. to Kathmandu. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

It’s typically best to fly out from Washington, D.C. to Kathmandu at noon. Doing so could potentially save you 12% on the flight price compared to flying in the morning, which is usually more expensive.

How much does it cost to fly round-trip from Washington, D.C. to Kathmandu?

What’s the top layover airport for flights from Washington, D.C. to Kathmandu?

Share of 1-stop round-trip flights from Washington, D.C. to Kathmandu chosen by Cheapflights users in the past 12 months, using the same layover each way.

Doha (DOH) – chosen by Cheapflights users on 57% of 1-stop itineraries from Washington, D.C. to Kathmandu on Cheapflights.

What’s the cheapest layover airport for flights from Washington, D.C. to Kathmandu?

Average round-trip fare for 1-stop flights from Washington, D.C. to Kathmandu, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Dubai (DXB) is the most affordable 1-stop option, with an average round-trip price of $1,294.

What’s the fastest layover option from Washington, D.C. to Kathmandu?

Shortest average travel time for 1-stop one-way flights from Washington, D.C. to Kathmandu, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Doha (DOH) have the shortest average one-way travel time for 1-stop routes: 19h 08m.

Which airport typically offers the quickest layover for flights from Washington, D.C. to Kathmandu?

Average layover duration for 1-stop one-way flights from Washington, D.C. to Kathmandu, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via New Delhi (DEL) offer the fastest connection on this route, with an average layover time of 4h 37m.

Reviews of airlines servicing Kathmandu

Get insights into the airlines that provide service to Kathmandu. 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 Kathmandu. Reviews last updated September 17, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Kathmandu, such as Emirates, Qatar Airways, and Turkish Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.1

Boarding

8.1

Crew

8.3

Comfort

8.0

Food

7.9

Entertainment

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Overall

8.1

Boarding

8.1

Crew

8.3

Comfort

8.0

Food

7.9

Entertainment

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Overall

8.1

Boarding

8.1

Crew

8.3

Comfort

8.0

Food

7.9

Entertainment

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Overall

8.1

Boarding

8.1

Crew

8.3

Comfort

8.0

Food

7.9

Entertainment

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Overall

8.1

Boarding

8.1

Crew

8.3

Comfort

8.0

Food

7.9

Entertainment

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Overall

8.1

Boarding

8.1

Crew

8.3

Comfort

8.0

Food

7.9

Entertainment

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Kathmandu. 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 into for flights to Kathmandu from Washington, D.C.?

    If you book a flight to Kathmandu from Washington, D.C., you will be flying to Tribhuvan, which is the city’s only airport. Kathmandu Tribhuvan (KTM) is located 2.5 mi from the center of Kathmandu. There are 0 flights from Washington, D.C. to Tribhuvan per day from 7 different airlines.

  • How long is the flight from Washington, D.C. to Kathmandu?

    For as low as $1,399, Qatar Airways can have you in Kathmandu from Washington, D.C. in 20h 05m. The distance between Washington, D.C. and Kathmandu is about 7695 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Washington, D.C. to Kathmandu round-trip?

    Etihad Airways, at $777, was found to be the cheapest airline from Washington, D.C. to Kathmandu.Alternate airlines to your destination round-trip include Air India and Emirates. You may be able to fly from Washington, D.C. to Kathmandu for 47% less than the average price by searching for these airlines.

  • What are the most popular routes from Washington, D.C. to Kathmandu?

  • Where are the most common layover locations when flying from Washington, D.C. to Kathmandu?

  • What are some popular things to do or see while on a layover in Doha?

    Doha travelers tend to visit Museum of Islamic Art, Katara Cultural Village, and Aspire Tower more than anywhere else. Museum of Islamic Art, Katara Cultural Village, and Aspire Tower are located about 5.2 mi, 8.7 mi, and 10.6 mi, respectively from Doha Hamad Intl. Travelers can book a car rental at Doha Hamad Intl for about $22 per day to make their sightseeing more efficient.

  • What are some popular points of interest to see during a layover in New Delhi?

    Most New Delhi visitors opt to spend their time at Karol Bagh, Lajpat Nagar Central Market, and Gurudwara Bangla Sahib. Karol Bagh, Lajpat Nagar Central Market and Gurudwara Bangla Sahib are located about 8.7 mi, 8.7 mi, and 8.2 mi, respectively from New Delhi Indira Gandhi Intl if you are interested in checking them out. Travelers in need of a car in New Delhi can rent one for about $80 per day.

  • Where are the least popular layover locations for Washington, D.C. to Kathmandu flights?

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

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

  • How can I find direct flights from Washington, D.C. to Kathmandu?

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

  • Can I find deals for business class flights from Washington, D.C. to Kathmandu?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Kathmandu 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 Washington, D.C. to Kathmandu?

    Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to Kathmandu (average of $1,205). Flying from Washington, D.C. to Kathmandu in June is currently the most expensive (average of $1,683). 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

Traveling to a place near Kathmandu?

Book flights to Kathmandu if you plan to visit one of these locations
Nagarkot

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Alternative routes for Washington, D.C. to Kathmandu

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from Washington, D.C. to Kathmandu

Discover the top 7 airlines that operate flights from Washington, D.C. to Kathmandu. 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$777Average$1,587FlexibilityNo cancel feeOn-time75%
Air IndiaCheapest$868Average$1,371FlexibilityNo cancel feeOn-timeN/A
EmiratesCheapest$1,092Average$1,431FlexibilityNo cancel feeOn-time75%
IndiGoCheapest$1,149Average$1,329FlexibilityNo cancel feeOn-time80%
Turkish AirlinesCheapest$1,187Average$1,694FlexibilityNo cancel feeOn-time77%
Qatar AirwaysCheapest$1,197Average$1,719FlexibilityNo cancel feeOn-time68%
SWISSCheapest$1,324Average$1,660FlexibilityNo cancel feeOn-time79%

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