HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Kathmandu

$506+ 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — KTM
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington, D.C. to Kathmandu with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Washington, D.C. to Kathmandu Tribhuvan are usually found in September or January, booked 8 days in advance, depart on a Tuesday or Friday 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 April 30, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,188
(Kiwi.com)

One-way from

$506
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$1,404
Provider with most accurate pricing for Washington, D.C. (WAS)-Kathmandu Tribhuvan flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Kathmandu Tribhuvan flights.
Search Deals
From Washington, D.C. (WAS) to Kathmandu Tribhuvan
Search Deals
One-way flight from Washington, D.C. (WAS) to Kathmandu Tribhuvan
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($99 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 April 30, 2025.

This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/911:00 amIAD - KTM
1 stop18h 55mMultiple Airlines
Mon 9/291:25 pmKTM - IAD
1 stop28h 00mMultiple Airlines
Deal found 4/29$1,188
This Booking.com deal was found by Cheapflights users on 4/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/109:40 pmIAD - KTM
2 stops29h 35mIndiGo
Wed 9/174:40 pmKTM - IAD
2 stops36h 50mIndiGo
Deal found 4/28$1,191
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1511:00 amIAD - KTM
1 stop36h 20mAir India
Mon 8/112:00 pmKTM - IAD
1 stop27h 25mAir India
Deal found 4/29$1,256
This Indian Eagle 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 Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/149:00 pmIAD - KTM
1 stop26h 05mQatar Airways
Sun 11/166:45 pmKTM - IAD
1 stop31h 55mQatar Airways
Deal found 4/29$1,351
This Indian Eagle 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 Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2510:55 amIAD - KTM
1 stop26h 25mEmirates
Wed 9/107:25 pmKTM - IAD
1 stop23h 00mEmirates
Deal found 4/29$1,391
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/810:05 pmIAD - KTM
1 stop31h 50mEtihad Airways
Mon 9/14:20 pmKTM - IAD
1 stop33h 35mEtihad Airways
Deal found 4/29$1,417
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/126:55 pmBWI - KTM
2 stops41h 05mSingapore Airlines
Sun 9/2811:00 pmKTM - BWI
2 stops42h 51mSingapore Airlines
Deal found 4/29$1,435
This Singapore Airlines 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/258:59 amDCA - KTM
2 stops51h 01mSingapore Airlines
Wed 9/1011:00 pmKTM - DCA
2 stops55h 44mSingapore Airlines
Deal found 4/29$1,511
This Gurufare 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/3011:54 amDCA - KTM
2 stops48h 06mCathay Pacific
Sun 5/1811:00 pmKTM - DCA
2 stops29h 52mCathay Pacific
Deal found 4/29$1,543
This Singapore Airlines 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/258:59 amDCA - KTM
2 stops51h 01mMultiple Airlines
Wed 9/1011:00 pmKTM - DCA
3 stops55h 44mMultiple Airlines
Deal found 4/29$1,573
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/257:22 pmBWI - KTM
2 stops40h 38mMultiple Airlines
Fri 9/1211:00 pmKTM - BWI
2 stops51h 52mMultiple Airlines
Deal found 4/29$1,593
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/246:55 pmDCA - KTM
2 stops37h 10mQatar Airways
Wed 10/86:00 pmKTM - DCA
2 stops36h 36mQatar Airways
Deal found 4/29$1,666

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 April 30, 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

Fri 5/9

11:00 am-3:40 pm

1 stop18h 55m

Kathmandu Tribhuvan

Mon 9/29

1:25 pm-7:40 am

1 stop28h 00m

$1,188

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Wed 9/10

9:40 pm-1:00 pm

2 stops29h 35m

Kathmandu Tribhuvan

Wed 9/17

4:40 pm-7:45 pm

2 stops36h 50m

$1,191

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Tue 7/15

11:00 am-9:05 am

1 stop36h 20m

Kathmandu Tribhuvan

Mon 8/11

2:00 pm-7:40 am

1 stop27h 25m

$1,256

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sun 9/14

9:00 pm-8:50 am

1 stop26h 05m

Kathmandu Tribhuvan

Sun 11/16

6:45 pm-3:55 pm

1 stop31h 55m

$1,351

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Mon 8/25

10:55 am-11:05 pm

1 stop26h 25m

Kathmandu Tribhuvan

Wed 9/10

7:25 pm-8:40 am

1 stop23h 00m

$1,391

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Fri 8/8

10:05 pm-3:40 pm

1 stop31h 50m

Kathmandu Tribhuvan

Mon 9/1

4:20 pm-4:10 pm

1 stop33h 35m

$1,417

BaltimoreKathmandu

BWI - KTM

BWIKTM

Baltimore/Washington

Fri 9/12

6:55 pm-9:45 pm

2 stops41h 05m

Kathmandu Tribhuvan

Sun 9/28

11:00 pm-8:06 am

2 stops42h 51m

$1,435

Washington, D.C.Kathmandu

DCA - KTM

DCAKTM

Washington, D.C. Reagan-National

Mon 8/25

8:59 am-9:45 pm

2 stops51h 01m

Kathmandu Tribhuvan

Wed 9/10

11:00 pm-8:59 pm

2 stops55h 44m

$1,511

Washington, D.C.Kathmandu

DCA - KTM

DCAKTM

Washington, D.C. Reagan-National

Mon 8/25

12:31 pm-9:45 pm

2 stops47h 29m

Kathmandu Tribhuvan

Fri 9/12

11:00 pm-8:44 pm

2 stops31h 29m

$1,543

Washington, D.C.Kathmandu

DCA - KTM

DCAKTM

Washington, D.C. Reagan-National

Mon 8/25

8:59 am-9:45 pm

2 stops51h 01m

Kathmandu Tribhuvan

Wed 9/10

11:00 pm-8:59 pm

3 stops55h 44m

$1,573

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 37 results
1
2
3
4

Compare providers for flights from Washington, D.C. to Kathmandu

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to Kathmandu in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
MytripPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C.-Kathmandu flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Washington, D.C.-Kathmandu flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Kathmandu flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Kathmandu flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-Kathmandu flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 April 25, 2025.

The best time to book flights from Washington, D.C. to Kathmandu is 8 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, September is the cheapest month in which you can book a flight from Washington, D.C. to Kathmandu (average of $1,237). Flying from Washington, D.C. to Kathmandu in June is currently the most expensive (average of $1,886). 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 April 30, 2025.

It’s typically best to fly out from Washington, D.C. to Kathmandu in the morning. Doing so could potentially save you 27% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Washington, D.C. to Kathmandu?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Kathmandu. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. to Kathmandu flight should consider departing on Wednesday mornings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Kathmandu by month

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

In terms of precipitation, rainfall in Kathmandu ranges from 0.0 - 14.6 inches per month. July is typically the wettest month, when rainfall can reach 14.6 in. November is typically the driest time to visit Kathmandu when rainfall is around 0.0 in.

Temperature in Kathmandu by month

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

If weather is an important factor for your trip to Kathmandu, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 50.0 F).

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 April 30, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Kathmandu, such as Korean Air, Singapore Airlines and Emirates. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,066 reviews

Entertainment

8.2

Boarding

8.5

Overall

8.4

Crew

8.7

Food

8.1

Comfort

8.3

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
1,066 reviews
Korean Air
8.4
Very good
1,066 reviews

Entertainment

8.2

Boarding

8.5

Overall

8.4

Crew

8.7

Food

8.1

Comfort

8.3

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
1,066 reviews

Entertainment

8.2

Boarding

8.5

Overall

8.4

Crew

8.7

Food

8.1

Comfort

8.3

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
1,066 reviews

Entertainment

8.2

Boarding

8.5

Overall

8.4

Crew

8.7

Food

8.1

Comfort

8.3

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.
Cathay Pacific
7.5
Good
852 reviews
Korean Air
8.4
Very good
1,066 reviews

Entertainment

8.2

Boarding

8.5

Overall

8.4

Crew

8.7

Food

8.1

Comfort

8.3

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.
Qatar Airways
7.4
Good
3,563 reviews
Korean Air
8.4
Very good
1,066 reviews

Entertainment

8.2

Boarding

8.5

Overall

8.4

Crew

8.7

Food

8.1

Comfort

8.3

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 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 9 different airlines.

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

    IndiGo, at $1,191, was found to be the cheapest airline from Washington, D.C. to Kathmandu.Alternate airlines to your destination round-trip include Air India and Qatar Airways. You may be able to fly from Washington, D.C. to Kathmandu for 21% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Washington, D.C. to Kathmandu one-way?

    For one-way options, check prices for IndiGo. According to our data, you can fly for as low as $633. Users have also found prices from $680 and $700 on Etihad Airways and Cathay Pacific, respectively.

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

    When deciding which route to take from Washington, D.C. to Kathmandu consider Washington, D.C. Dulles Intl - Kathmandu Tribhuvan, Washington, D.C. Reagan-National - Kathmandu Tribhuvan or Baltimore/Washington - Kathmandu Tribhuvan as they are the most popular.

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

    Most of the time, Washington, D.C. to Kathmandu flights that have layovers will stop in Doha. New Delhi sees the next most layovers on Washington, D.C. to Kathmandu flights.

  • 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 $29 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 $62 per day.

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

    The least popular layover on flights from Washington, D.C. to Kathmandu is Istanbul.

  • 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, September is the cheapest month in which you can book a flight from Washington, D.C. to Kathmandu (average of $1,237). Flying from Washington, D.C. to Kathmandu in June is currently the most expensive (average of $1,886). 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 Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Nagarkot

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington, D.C. to Kathmandu

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Kathmandu flights
Reagan-National to Kathmandu flights

Top 8 airlines flying from Washington, D.C. to Kathmandu

Discover the top 8 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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$670Average$1,780FlexibilityNo cancel feeOn-time75%
Air IndiaCheapest$1,023Average$1,424FlexibilityNo cancel feeOn-timeN/A
Qatar AirwaysCheapest$1,133Average$1,636FlexibilityNo cancel feeOn-time68%
KLMCheapest$1,135Average$1,210FlexibilityNo cancel feeOn-time75%
IndiGoCheapest$1,180Average$1,339FlexibilityNo cancel feeOn-time80%
Turkish AirlinesCheapest$1,183Average$1,741FlexibilityNo cancel feeOn-time77%
EmiratesCheapest$1,316Average$1,711FlexibilityNo cancel feeOn-time75%
SWISSCheapest$1,652Average$1,663FlexibilityNo cancel feeOn-time79%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.