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

A quick flight from Kathmandu to Washington, D.C. Dulles Intl Airport can take about 31h 40m. Qatar Airways provides one of the quickest options available for as low as £997. There are 7695 mi between Kathmandu and Washington, D.C. Dulles Intl Airport. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 66.0 mm.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

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

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

What airport do you fly from for flights from Kathmandu to Washington, D.C. Dulles Intl?

Kathmandu Tribhuvan (KTM) is the airport you will fly out of if you book a flight from Kathmandu to Washington, D.C. Dulles Intl. You should not have trouble finding flights to Washington, D.C. Dulles Intl from Tribhuvan; the airport handles an average of 0 outbound flights to Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Kathmandu airport to Washington, D.C. Dulles Intl. It is only a 2.5 mi journey to Tribhuvan (KTM) from Kathmandu’s city center.

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 holiday 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.

£524+ Cheap Flights from Kathmandu to Washington, D.C. Dulles Intl Airport

Cheap flight deals from Kathmandu to Dulles Intl

Enter your travel dates to find the best prices.

Cheapest

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Last-minute

One-way

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 12 October 2026.

Sun 11/1019:00 -

1 stop30h 40m

Mon 26/1021:05 -

1 stop34h 55m

Deal found 10/10£1,005

Thu 24/1209:20 -

1 stop34h 00m

Sat 26/1210:35 -

1 stop35h 00m

Deal found 8/10£1,243

Mon 21/1209:20 -

1 stop34h 00m

Tue 22/1210:35 -

1 stop35h 00m

Deal found 8/10£1,274

Thu 24/1209:20 -

1 stop34h 00m

Fri 25/1210:35 -

1 stop35h 00m

Deal found 8/10£1,288

Mon 21/1209:20 -

1 stop34h 00m

Fri 25/1210:35 -

1 stop35h 00m

Deal found 8/10£1,320

Tue 22/1200:30 -

1 stop42h 50m

Sat 26/1210:35 -

1 stop26h 10m

Deal found 8/10£1,347

Tue 22/1219:25 -

1 stop25h 10m

Wed 23/1211:50 -

1 stop42h 25m

Deal found 8/10£1,351

Sun 20/1209:35 -

1 stop41h 05m

Sat 26/1220:05 -

1 stop34h 55m

Deal found 8/10£1,374

Tue 22/1200:30 -

1 stop42h 50m

Fri 25/1210:35 -

1 stop35h 00m

Deal found 8/10£1,392

Fri 25/1209:20 -

1 stop34h 00m

Sat 26/1215:30 -

2 stops30h 05m

Deal found 8/10£1,429

Wed 18/1120:50 -

2 stops29h 50m

Wed 12/517:40 -

2 stops30h 25m

Deal found 12/10£1,455

Find flight deals from Kathmandu to Dulles Intl

Round-trip from	£997
One-way from	£524
Popular in	April
Cheapest in	February
Average price	£1,126

Qatar Airways
1/3-31/3
2 total stops
51h 40m total
Kathmandu to Washington, D.C.

Search Deals

23/10-31/12
3 total stops
33h 48m total
Kathmandu to Washington, D.C.

Search Deals

Highest demand for flights based on searches. 0% potential increase in price (£2 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 0% potential price decrease (£9 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Cheapflights Fare Finder

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

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Fly to

Route

Depart

Return

Price

Cheapest return flight

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KathmanduWashington, D.C.

KTM Kathmandu Tribhuvan - IAD Washington, D.C. Dulles Intl

KTMIAD

Kathmandu Tribhuvan

Fri 23/10

17:30-17:33

3 stops33h 48m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-10:30

Nonstop0h 00m

£524

KathmanduWashington, D.C.

KTM Kathmandu Tribhuvan - IAD Washington, D.C. Dulles Intl

KTMIAD

Kathmandu Tribhuvan

Thu 22/10

17:30-17:33

3 stops33h 48m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-10:30

Nonstop0h 00m

£524

KathmanduWashington, D.C.

KTM Kathmandu Tribhuvan - IAD Washington, D.C. Dulles Intl

KTMIAD

Kathmandu Tribhuvan

Sat 24/10

17:30-17:33

3 stops33h 48m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-10:30

Nonstop0h 00m

£576

KathmanduWashington, D.C.

KTM Kathmandu Tribhuvan - IAD Washington, D.C. Dulles Intl

KTMIAD

Kathmandu Tribhuvan

Thu 19/11

06:30-11:52

3 stops40h 07m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-10:30

Nonstop0h 00m

£654

KathmanduWashington, D.C.

KTM Kathmandu Tribhuvan - IAD Washington, D.C. Dulles Intl

KTMIAD

Kathmandu Tribhuvan

Mon 1/3

19:00-15:55

1 stop31h 40m

Washington, D.C. Dulles Intl

Wed 31/3

11:00-16:45

1 stop20h 00m

£997

KathmanduWashington, D.C.

KTM Kathmandu Tribhuvan - IAD Washington, D.C. Dulles Intl

KTMIAD

Kathmandu Tribhuvan

Tue 30/3

10:05-08:45

1 stop32h 25m

Washington, D.C. Dulles Intl

Tue 13/7

21:00-08:50

1 stop26h 05m

£1,131

KathmanduWashington, D.C.

KTM Kathmandu Tribhuvan - IAD Washington, D.C. Dulles Intl

KTMIAD

Kathmandu Tribhuvan

Tue 22/12

09:20-08:35

1 stop34h 00m

Washington, D.C. Dulles Intl

Sat 26/12

10:35-23:30

1 stop26h 10m

£1,274

KathmanduWashington, D.C.

KTM Kathmandu Tribhuvan - IAD Washington, D.C. Dulles Intl

KTMIAD

Kathmandu Tribhuvan

Tue 22/12

09:20-08:35

1 stop34h 00m

Washington, D.C. Dulles Intl

Fri 25/12

10:35-08:20

1 stop35h 00m

£1,320

KathmanduWashington, D.C.

KTM Kathmandu Tribhuvan - IAD Washington, D.C. Dulles Intl

KTMIAD

Kathmandu Tribhuvan

Thu 24/12

09:20-08:35

1 stop34h 00m

Washington, D.C. Dulles Intl

Fri 25/12

15:30-23:30

2 stops45h 15m

£1,489

KathmanduWashington, D.C.

KTM Kathmandu Tribhuvan - IAD Washington, D.C. Dulles Intl

KTMIAD

Kathmandu Tribhuvan

Fri 18/12

00:30-08:35

1 stop42h 50m

Washington, D.C. Dulles Intl

Tue 22/12

15:30-08:20

2 stops30h 05m

£1,827

Flights are sorted by cheapest return flights first.

Deals found on 11/10

Showing 1-10 of 15 resultsSorted by cheapest first

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.

KTM-IAD

Estimated return 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

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

Currently, February is the cheapest month in which you can book a flight from Kathmandu to Washington, D.C. Dulles Intl Airport (average of £980). Flying from Kathmandu to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of £1,235). 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.

Related info for your journey

What airport do you fly from for flights from Kathmandu to Washington, D.C. Dulles Intl?
Kathmandu Tribhuvan (KTM) is the airport you will fly out of if you book a flight from Kathmandu to Washington, D.C. Dulles Intl. You should not have trouble finding flights to Washington, D.C. Dulles Intl from Tribhuvan; the airport handles an average of 0 outbound flights to Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Kathmandu airport to Washington, D.C. Dulles Intl. It is only a 2.5 mi journey to Tribhuvan (KTM) from Kathmandu’s city center.
How long is the flight from Kathmandu to Washington, D.C. Dulles Intl Airport?
A quick flight from Kathmandu to Washington, D.C. Dulles Intl Airport can take about 31h 40m. Qatar Airways provides one of the quickest options available for as low as £997. There are 7695 mi between Kathmandu and Washington, D.C. Dulles Intl Airport. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
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 holiday 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, February is the cheapest month in which you can book a flight from Kathmandu to Washington, D.C. Dulles Intl Airport (average of £980). Flying from Kathmandu to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of £1,235). 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.

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Deals for Kathmandu to Dulles Intl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Kathmandu to Dulles Intl?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Dulles Intl from Kathmandu.

Can Cheapflights find flights from Kathmandu to Dulles Intl with no change fees?

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Cheap flights from Kathmandu to Washington, D.C. Dulles Intl Airport from £524

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Kathmandu to Dulles Intl

Cheapest flights from Kathmandu to Dulles IntlExplore 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 12 October 2026.

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 12 October 2026.

Best flights from Kathmandu to Dulles IntlDiscover carefully curated flight deals from Kathmandu to Dulles Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 October 2026.

Discover carefully curated flight deals from Kathmandu to Dulles Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 October 2026.

Last-minute flights from Kathmandu to Dulles IntlDiscover last-minute flight deals from Kathmandu to Dulles Intl. Data last updated 12 October 2026 and is based on user searches.

Discover last-minute flight deals from Kathmandu to Dulles Intl. Data last updated 12 October 2026 and is based on user searches.

One-way flights from Kathmandu to Dulles IntlSearch for one-way flight options from Kathmandu to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated 12 October 2026.

Search for one-way flight options from Kathmandu to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated 12 October 2026.

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Best time to book a flight from Kathmandu to Dulles Intl

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

Related info for your journey

What airport do you fly from for flights from Kathmandu to Washington, D.C. Dulles Intl?

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

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

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

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

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

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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 12 October 2026.

Best flights from Kathmandu to Dulles Intl
Discover carefully curated flight deals from Kathmandu to Dulles Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 October 2026.

Last-minute flights from Kathmandu to Dulles Intl
Discover last-minute flight deals from Kathmandu to Dulles Intl. Data last updated 12 October 2026 and is based on user searches.

One-way flights from Kathmandu to Dulles Intl
Search for one-way flight options from Kathmandu to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated 12 October 2026.