Dulles Intl

$658+ Cheap flights from Kathmandu (KTM) to Dulles Intl (IAD)

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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
KTM — IAD
Oct 11 — Oct 181
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Cheapflights Tip: The best prices from Kathmandu Tribhuvan to Washington, D.C. Dulles Intl are usually found in October or May, booked 18 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap flight deals from Kathmandu to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Kathmandu (KTM) to Dulles Intl (IAD). 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 11, 2025.

Round-trip from

$946
(Trip.com)

One-way from

$658
(Kiwi.com)

Popular in

August

Cheapest in

October

Average price

$1,456
From Kathmandu Tribhuvan to Washington, D.C. Dulles Intl
One-way flight from Kathmandu Tribhuvan to Washington, D.C. Dulles Intl
Highest demand for flights based on searches. 4% potential increase in price ($66 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($27 potential savings vs. average RT price).
Average for round-trip flights in September 2025

Find flight deals from Kathmandu to Dulles Intl

Cheapest flights from Kathmandu to Dulles Intl
Explore the most affordable flight options available from Kathmandu to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Trip.com deal was found by Cheapflights users on 9/10. 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 9/211:25 pmKTM - IAD
2 stops36h 30mMultiple Airlines
Sun 10/510:05 pmIAD - KTM
2 stops34h 20mMultiple Airlines
Deal found 9/10$946
This Trip.com deal was found by Cheapflights users on 9/8. 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 9/101:25 pmKTM - IAD
2 stops36h 30mMultiple Airlines
Tue 9/3010:05 pmIAD - KTM
2 stops34h 20mMultiple Airlines
Deal found 9/8$954
This Booking.com deal was found by Cheapflights users on 9/9. 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.
Tue 9/232:00 pmKTM - IAD
2 stops39h 30mIndiGo
Fri 1/231:30 pmIAD - KTM
2 stops39h 25mIndiGo
Deal found 9/9$956
This Trip.com deal was found by Cheapflights users on 9/11. 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 10/221:25 pmKTM - IAD
2 stops36h 30mMultiple Airlines
Sun 3/2210:10 pmIAD - KTM
2 stops34h 40mMultiple Airlines
Deal found 9/11$976
This Trip.com deal was found by Cheapflights users on 9/11. 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 9/141:25 pmKTM - IAD
2 stops60h 30mMultiple Airlines
Tue 9/3010:05 pmIAD - KTM
2 stops34h 20mMultiple Airlines
Deal found 9/11$980
This Trip.com deal was found by Cheapflights users on 9/11. 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 10/151:25 pmKTM - IAD
2 stops36h 30mMultiple Airlines
Thu 2/129:10 pmIAD - KTM
2 stops34h 40mMultiple Airlines
Deal found 9/11$1,014
This Booking.com deal was found by Cheapflights users on 9/8. 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.
Sun 9/2110:50 amKTM - IAD
2 stops42h 40mIndiGo
Sun 10/51:30 pmIAD - KTM
2 stops38h 50mIndiGo
Deal found 9/8$1,038
This KLM deal was found by Cheapflights users on 9/11. 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.
Tue 10/213:05 pmKTM - IAD
2 stops34h 15mKLM
Mon 3/237:05 pmIAD - KTM
2 stops33h 15mKLM
Deal found 9/11$1,094
This Mytrip deal was found by Cheapflights users on 9/9. 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.
Tue 9/235:30 pmKTM - IAD
3 stops32h 25mMultiple Airlines
Fri 1/231:30 pmIAD - KTM
2 stops39h 25mMultiple Airlines
Deal found 9/9$1,126
This Mytrip deal was found by Cheapflights users on 9/11. 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.
Sat 10/114:40 pmKTM - IAD
2 stops33h 15mMultiple Airlines
Sat 10/189:40 pmIAD - KTM
2 stops30h 40mMultiple Airlines
Deal found 9/11$1,141
This KLM deal was found by Cheapflights users on 9/11. 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.
Thu 10/233:05 pmKTM - IAD
2 stops34h 15mKLM
Mon 3/237:05 pmIAD - KTM
2 stops33h 15mKLM
Deal found 9/11$1,142
This KLM deal was found by Cheapflights users on 9/10. 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.
Thu 11/133:05 pmKTM - IAD
2 stops35h 45mKLM
Thu 4/309:20 pmIAD - KTM
2 stops50h 45mKLM
Deal found 9/10$1,159

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kathmandu to Dulles Intl 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 11, 2025.
Use the filters below to find and compare flights from Kathmandu to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Kathmandu

Fly to

Dulles Intl

Route

Depart

Return

Price

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Tue 9/23

2:00 pm-7:45 pm

2 stops39h 30m

Washington, D.C. Dulles Intl

Fri 1/23

1:30 pm-3:40 pm

2 stops39h 25m

$956

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Wed 10/22

3:05 pm-3:35 pm

2 stops34h 15m

Washington, D.C. Dulles Intl

Sat 3/21

7:05 pm-2:05 pm

2 stops33h 15m

$1,094

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Tue 10/21

3:05 pm-3:35 pm

2 stops34h 15m

Washington, D.C. Dulles Intl

Mon 3/23

7:05 pm-2:05 pm

2 stops33h 15m

$1,094

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Tue 9/23

5:30 pm-4:10 pm

3 stops32h 25m

Washington, D.C. Dulles Intl

Fri 1/23

1:30 pm-3:40 pm

2 stops39h 25m

$1,126

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Thu 11/13

3:05 pm-4:05 pm

2 stops35h 45m

Washington, D.C. Dulles Intl

Mon 5/4

6:30 pm-2:05 pm

2 stops33h 50m

$1,141

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Thu 11/13

3:05 pm-4:05 pm

2 stops35h 45m

Washington, D.C. Dulles Intl

Thu 4/30

5:25 pm-2:05 pm

2 stops34h 55m

$1,142

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Sat 9/27

4:40 pm-7:15 pm

2 stops36h 20m

Washington, D.C. Dulles Intl

Wed 10/29

7:05 pm-2:05 pm

2 stops33h 15m

$1,183

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Sun 9/21

4:40 pm-4:10 pm

2 stops33h 15m

Washington, D.C. Dulles Intl

Sun 10/5

8:50 pm-9:50 am

3 stops27h 15m

$1,205

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Fri 10/17

2:00 pm-7:45 pm

2 stops39h 30m

Washington, D.C. Dulles Intl

Sun 11/23

1:30 pm-12:55 pm

2 stops36h 40m

$1,205

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Fri 9/26

4:40 pm-4:10 pm

2 stops33h 15m

Washington, D.C. Dulles Intl

Thu 10/16

9:40 pm-1:00 pm

2 stops29h 35m

$1,236

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 19 results
1
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Best time to book a flight from Kathmandu to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl 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, D.C. Dulles Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Kathmandu to Dulles Intl. Price data was last updated on August 29, 2025.

The price you pay for your flight from Kathmandu to Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 18 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, August is the cheapest month in which you can book a flight from Kathmandu to Washington, D.C. Dulles Intl Airport (average of $292). Flying from Kathmandu to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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 IAD?

Find hourly flight availability from Kathmandu to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 19% on flights from Kathmandu to Washington, D.C. Dulles Intl Airport by exploring options for tickets at noon.

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

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated September 11, 2025.
Get a feel of what it's like to fly with Emirates, Qatar Airways, and Turkish Airlines from Kathmandu to Washington, D.C. Dulles Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

8.2

Crew

8.3

Boarding

8.1

Comfort

8.0

Overall

8.1

Food

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2025

KTM - DXB

Lost 7 pieces of luggage and fly Dubai doesn’t seem to care.

Entertainment

8.2

Crew

8.3

Boarding

8.1

Comfort

8.0

Overall

8.1

Food

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2025

KTM - DXB

Lost 7 pieces of luggage and fly Dubai doesn’t seem to care.

Entertainment

8.2

Crew

8.3

Boarding

8.1

Comfort

8.0

Overall

8.1

Food

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2025

KTM - DXB

Lost 7 pieces of luggage and fly Dubai doesn’t seem to care.

Entertainment

8.2

Crew

8.3

Boarding

8.1

Comfort

8.0

Overall

8.1

Food

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2025

KTM - DXB

Lost 7 pieces of luggage and fly Dubai doesn’t seem to care.

Entertainment

8.2

Crew

8.3

Boarding

8.1

Comfort

8.0

Overall

8.1

Food

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2025

KTM - DXB

Lost 7 pieces of luggage and fly Dubai doesn’t seem to care.

Entertainment

8.2

Crew

8.3

Boarding

8.1

Comfort

8.0

Overall

8.1

Food

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2025

KTM - DXB

Lost 7 pieces of luggage and fly Dubai doesn’t seem to care.

Related info for your journey

Find useful and relevant information for your journey from Kathmandu to Dulles Intl. 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, D.C. Dulles Intl?

    If you book a flight to Washington, D.C. Dulles Intl from Kathmandu, you will be flying from 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 Tribhuvan to Washington, D.C. Dulles Intl per day from 5 different airlines.

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

    For as low as $1,094, IndiGo can have you in Washington, D.C. Dulles Intl Airport from Kathmandu in 34h 15m. The distance between Kathmandu and Washington, D.C. Dulles Intl Airport is about 7695 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Cheapflights users have booked flights from Kathmandu to Washington, D.C. Dulles Intl Airport round-trip from $947. Other airlines that can offer you cheap pricing are Turkish Airlines, from $1,227, and Air India, from $1,239. IndiGo is priced at 37% lower than the current average price of a flight leaving 3 months from now.

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

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

    Most Doha visitors opt to spend their time experiencing Museum of Islamic Art, Katara Cultural Village, and Aspire Tower. Museum of Islamic Art, Katara Cultural Village, and Aspire Tower can be accessed by traveling approximately 5.2 mi, 8.7 mi, and 10.6 mi, respectively from Doha Hamad Intl. Travelers in need of a car in Doha can rent one for about $19 per day.

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

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

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

  • How can I find direct flights from Kathmandu to Dulles Intl?

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Kathmandu to Washington, D.C. Dulles Intl Airport (average of $292). Flying from Kathmandu to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Woodbridge
Alexandria
Arlington
Tysons
Silver Spring
Springfield
Gaithersburg
Fredericksburg
Linthicum Heights
Fairfax
Falls Church
Owings Mills
Manassas
Rockville
Hanover
Oxon Hill
Laurel
Towson
Dundalk
National Harbor

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Alternative routes for Kathmandu to Dulles Intl

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

Top 5 airlines flying from Kathmandu to Dulles Intl

Discover the top 5 airlines that operate flights from Kathmandu to Dulles Intl. 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 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
IndiGoCheapest$947Average$1,269FlexibilityNo cancel feeOn-time80%
Turkish AirlinesCheapest$1,227Average$1,321FlexibilityNo cancel feeOn-time77%
Air IndiaCheapest$1,239Average$1,611FlexibilityNo cancel feeOn-timeN/A
Qatar AirwaysCheapest$1,327Average$1,501FlexibilityNo cancel feeOn-time68%
EmiratesCheapest$1,509Average$1,634FlexibilityNo cancel feeOn-time75%

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