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Kathmandu

$478+ Cheap flights from Dulles Intl (IAD) 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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — KTM
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Kathmandu Tribhuvan are usually found in August or September, booked 8 days in advance, depart on a Saturday or Tuesday and return on a Tuesday

Cheap flight deals from Dulles Intl to Kathmandu

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) 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 July 29, 2025.

Round-trip from

$956
(Trip.com)

One-way from

$478
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$1,456
From Washington, D.C. Dulles Intl to Kathmandu Tribhuvan
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One-way flight from Washington, D.C. Dulles Intl to Kathmandu Tribhuvan
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Highest demand for flights based on searches. 8% potential increase in price ($135 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($43 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Dulles Intl to Kathmandu

Cheapest flights from Dulles Intl to Kathmandu
Explore the most affordable flight options available from Dulles Intl to Kathmandu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This Trip.com deal was found by Cheapflights users on 7/27. 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 8/2710:05 pmIAD - KTM
2 stops26h 00mMultiple Airlines
Fri 9/264:40 pmKTM - IAD
2 stops33h 15mMultiple Airlines
Deal found 7/27$956
This FlightHub deal was found by Cheapflights users on 7/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/291:30 pmIAD - KTM
2 stops34h 35mIndiGo
Sat 9/273:05 pmKTM - IAD
2 stops38h 25mIndiGo
Deal found 7/28$963
This oojo deal was found by Cheapflights users on 7/27. 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.
Sun 9/2111:00 amIAD - KTM
1 stop23h 20mAir India
Fri 10/316:30 amKTM - IAD
1 stop35h 05mAir India
Deal found 7/27$964

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl 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 July 29, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Kathmandu that are best for you.

Fly from

Dulles Intl

Fly to

Kathmandu

Route

Depart

Return

Price

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Wed 8/27

10:05 pm-9:50 am

2 stops26h 00m

Kathmandu Tribhuvan

Fri 9/26

4:40 pm-4:10 pm

2 stops33h 15m

$956

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Fri 8/29

1:30 pm-9:50 am

2 stops34h 35m

Kathmandu Tribhuvan

Sat 9/27

3:05 pm-7:45 pm

2 stops38h 25m

$963

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sun 9/21

11:00 am-8:05 pm

1 stop23h 20m

Kathmandu Tribhuvan

Fri 10/31

6:30 am-7:50 am

1 stop35h 05m

$964

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sat 8/9

1:30 pm-9:05 am

2 stops33h 50m

$478

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Wed 9/3

11:00 am-8:05 pm

1 stop23h 20m

$480

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Tue 8/12

1:30 pm-6:15 am

1 stop31h 00m

$508

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sun 9/14

9:40 pm-2:05 pm

2 stops30h 40m

$548

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sat 8/9

10:05 pm-3:40 pm

1 stop31h 50m

$549

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Best time to book a flight from Dulles Intl to Kathmandu

Have a flexible travel schedule? Discover the best time to fly to Kathmandu from Dulles Intl 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. Dulles Intl Airport to Kathmandu

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Kathmandu. Price data was last updated on July 25, 2025.

Booking 8 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. Dulles Intl Airport to Kathmandu. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Kathmandu (average of $1,237). Flying from Washington, D.C. Dulles Intl Airport to Kathmandu in June is currently the most expensive (average of $1,684). 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 IAD to KTM?

Find hourly flight availability from Dulles Intl 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 July 29, 2025.

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to Kathmandu in the morning. Doing so could potentially save you 26% on the flight price compared to flying at noon, which is usually more expensive.

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

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

Doha (DOH) – chosen by Cheapflights users on 59% of 1-stop itineraries from Washington, D.C. Dulles Intl Airport to Kathmandu on Cheapflights.

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

Average round-trip fare for 1-stop flights from Washington, D.C. Dulles Intl Airport 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 $1,485.

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

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

Flights via New Delhi (DEL) have the shortest average one-way travel time for 1-stop routes: 5h 28m.

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

Average layover duration for 1-stop one-way flights from Washington, D.C. Dulles Intl Airport 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 July 29, 2025.
Read reviews from past customers who have flown Etihad Airways, Turkish Airlines, and IndiGo from Washington, D.C. Dulles Intl Airport to Kathmandu. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Etihad Airways
7.4
Good
1,227 reviews

Food

7.2

Comfort

7.3

Crew

7.8

Boarding

7.6

Overall

7.4

Entertainment

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2025

JFK - AUH

Low load on JFK to AUH. Got a whole row to myself. Modern airline and airplane. Only vegetarian option available on same route. It was delicious though. AUH BKK was packed to the gills. Nothing wrong with the flight though.
Etihad Airways
7.4
Good
1,227 reviews
Etihad Airways
7.4
Good
1,227 reviews

Food

7.2

Comfort

7.3

Crew

7.8

Boarding

7.6

Overall

7.4

Entertainment

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2025

JFK - AUH

Low load on JFK to AUH. Got a whole row to myself. Modern airline and airplane. Only vegetarian option available on same route. It was delicious though. AUH BKK was packed to the gills. Nothing wrong with the flight though.
Turkish Airlines
7.3
Good
3,925 reviews
Etihad Airways
7.4
Good
1,227 reviews

Food

7.2

Comfort

7.3

Crew

7.8

Boarding

7.6

Overall

7.4

Entertainment

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2025

JFK - AUH

Low load on JFK to AUH. Got a whole row to myself. Modern airline and airplane. Only vegetarian option available on same route. It was delicious though. AUH BKK was packed to the gills. Nothing wrong with the flight though.
IndiGo
6.8
Okay
478 reviews
Etihad Airways
7.4
Good
1,227 reviews

Food

7.2

Comfort

7.3

Crew

7.8

Boarding

7.6

Overall

7.4

Entertainment

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2025

JFK - AUH

Low load on JFK to AUH. Got a whole row to myself. Modern airline and airplane. Only vegetarian option available on same route. It was delicious though. AUH BKK was packed to the gills. Nothing wrong with the flight though.
Air India
5.5
Fair
2,927 reviews
Etihad Airways
7.4
Good
1,227 reviews

Food

7.2

Comfort

7.3

Crew

7.8

Boarding

7.6

Overall

7.4

Entertainment

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2025

JFK - AUH

Low load on JFK to AUH. Got a whole row to myself. Modern airline and airplane. Only vegetarian option available on same route. It was delicious though. AUH BKK was packed to the gills. Nothing wrong with the flight though.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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. Dulles Intl?

    For a flight from Washington, D.C. Dulles Intl to Kathmandu, you will be flying into Tribhuvan. Kathmandu Tribhuvan (KTM) is just 2.5 mi from the center of the city. Tribhuvan is the only Kathmandu airport and it handles 0 inbound flights from Washington, D.C. Dulles Intl per day. 9 airlines have flights to Kathmandu Tribhuvan from Washington, D.C. Dulles Intl on a regular basis.

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

    IndiGo, at $963, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Kathmandu. An alternate airline flying to your destination would be Air India. These flights start at 34% lower than the current average price 3 months from now.

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

    $480 is the cheapest one-way deal found within the past few days, from Air India. You may also be able to find cheap deals on Turkish Airlines and IndiGo, with prices starting from $508 and $548, respectively.

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

    The most popular layover on flights from Washington, D.C. Dulles Intl Airport to Kathmandu is Doha. Doha is followed by New Delhi in terms of the most popular layover location on flights from Washington, D.C. Dulles Intl Airport to Kathmandu.

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

    Museum of Islamic Art, Katara Cultural Village, and Aspire Tower are currently the most popular points of interest in Doha at the moment. Museum of Islamic Art, Katara Cultural Village, and Aspire Tower can be visited by traveling about 5.2 mi, 8.7 mi, and 10.6 mi respectively from Doha Hamad Intl. Travelers can rent a car at Doha Hamad Intl for an average daily rate of $19 to make sightseeing during their layover a little easier.

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

    Karol Bagh, Lajpat Nagar Central Market, and Gurudwara Bangla Sahib are the most popular attractions in New Delhi if you're in need of something to do during your layover. 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. Travelers can book a car rental at New Delhi Indira Gandhi Intl for about $100 per day to make their sightseeing more efficient.

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

    Washington, D.C. Dulles Intl Airport to Kathmandu flights that have layovers will least frequently stop in Istanbul.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl 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. Dulles Intl Airport to Kathmandu?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Kathmandu (average of $1,237). Flying from Washington, D.C. Dulles Intl Airport to Kathmandu in June is currently the most expensive (average of $1,684). 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 Dulles Intl to Kathmandu

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

Top 8 airlines flying from Dulles Intl to Kathmandu

Discover the top 8 airlines that operate flights from Dulles Intl 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$777Average$1,597FlexibilityNo cancel feeOn-time75%
Air IndiaCheapest$894Average$1,374FlexibilityNo cancel feeOn-timeN/A
EmiratesCheapest$1,092Average$1,648FlexibilityNo cancel feeOn-time75%
IndiGoCheapest$1,160Average$1,332FlexibilityNo cancel feeOn-time80%
Qatar AirwaysCheapest$1,171Average$1,468FlexibilityNo cancel feeOn-time68%
Turkish AirlinesCheapest$1,186Average$1,737FlexibilityNo cancel feeOn-time77%
Singapore AirlinesCheapest$1,275Average$1,393FlexibilityNo cancel feeOn-time81%
SWISSCheapest$1,324Average$1,663FlexibilityNo cancel feeOn-time79%

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