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Cheap flights from Washington, D.C. Dulles Intl Airport to Kathmandu from £540

IAD — KTM
4 Oct — 11 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Dulles Intl to Kathmandu

Enter your travel dates to find the best prices.

Cheapest flights from Dulles Intl to Kathmandu

Fri 2/1022:40 -
2 stops35h 45m
Fri 9/1021:10 -
2 stops34h 02m
Deal found 4/9£983
Wed 11/1113:30 -
1 stop35h 05m
Thu 17/1212:45 -
1 stop33h 45m
Deal found 2/9£1,025
Wed 11/1113:30 -
1 stop35h 05m
Thu 10/1212:45 -
1 stop33h 45m
Deal found 1/9£1,089
Wed 9/910:55 -
1 stop22h 15m
Mon 14/915:35 -
1 stop27h 00m
Deal found 31/8£1,103
Wed 11/1113:30 -
1 stop35h 05m
Sun 13/1212:45 -
1 stop41h 25m
Deal found 1/9£1,138
Thu 10/910:55 -
1 stop22h 15m
Fri 18/909:05 -
1 stop33h 30m
Deal found 31/8£1,140
Mon 7/910:55 -
1 stop35h 25m
Sat 12/915:35 -
1 stop27h 00m
Deal found 30/8£1,144
Wed 16/921:00 -
1 stop26h 05m
Fri 25/917:30 -
1 stop25h 00m
Deal found 31/8£1,150
Thu 5/1120:05 -
1 stop34h 40m
Thu 17/1217:40 -
1 stop25h 35m
Deal found 1/9£1,152
Thu 5/1120:05 -
1 stop33h 35m
Wed 16/1217:40 -
1 stop33h 00m
Deal found 1/9£1,154
Tue 15/910:55 -
1 stop22h 15m
Wed 30/919:55 -
1 stop22h 30m
Deal found 30/8£1,156
Wed 11/1113:30 -
1 stop35h 05m
Sat 12/1212:45 -
1 stop33h 45m
Deal found 1/9£1,160

Find flight deals from Dulles Intl to Kathmandu

Round-trip from

£983

One-way from

£540

Popular in

June

Cheapest in

August

Average price

£1,068
2/10-9/10
  • 2/10-9/10
  • 4 total stops
  • 69h 47m total
  • Washington, D.C. to Kathmandu
Search Deals
26/1-31/12
  • 26/1-31/12
  • 2 total stops
  • 23h 25m total
  • Washington, D.C. to Kathmandu
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£174 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£24 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

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

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Price

Cheapest return flight
Fastest return journey

Washington, D.C.Kathmandu

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

IADKTM

Washington, D.C. Dulles Intl

Thu 28/1

06:00-16:10

2 stops23h 25m

Kathmandu Tribhuvan

Wed 31/12

00:00-13:30

Nonstop0h 00m

£540

Washington, D.C.Kathmandu

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

IADKTM

Washington, D.C. Dulles Intl

Tue 26/1

06:00-16:10

2 stops23h 25m

Kathmandu Tribhuvan

Wed 31/12

00:00-13:30

Nonstop0h 00m

£540

Washington, D.C.Kathmandu

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

IADKTM

Washington, D.C. Dulles Intl

Wed 30/9

06:35-06:35

3 stops38h 15m

Kathmandu Tribhuvan

Wed 31/12

00:00-13:30

Nonstop0h 00m

£808

Washington, D.C.Kathmandu

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

IADKTM

Washington, D.C. Dulles Intl

Wed 14/10

06:35-06:35

3 stops38h 15m

Kathmandu Tribhuvan

Wed 31/12

00:00-13:30

Nonstop0h 00m

£808

Washington, D.C.Kathmandu

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

IADKTM

Washington, D.C. Dulles Intl

Mon 7/12

12:35-21:50

3 stops46h 30m

Kathmandu Tribhuvan

Wed 31/12

00:00-13:30

Nonstop0h 00m

£1,267

Washington, D.C.Kathmandu

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

IADKTM

Washington, D.C. Dulles Intl

Fri 2/10

21:00-17:30

1 stop34h 45m

Kathmandu Tribhuvan

Mon 30/11

18:45-15:55

1 stop31h 55m

£1,311

Washington, D.C.Kathmandu

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

IADKTM

Washington, D.C. Dulles Intl

Sat 20/2

15:41-14:00

2 stops35h 34m

Kathmandu Tribhuvan

Sun 7/3

19:40-08:10

1 stop23h 15m

£1,335

Washington, D.C.Kathmandu

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

IADKTM

Washington, D.C. Dulles Intl

Thu 8/10

11:05-17:30

1 stop20h 40m

Kathmandu Tribhuvan

Fri 20/11

09:35-15:55

1 stop41h 05m

£1,377

Washington, D.C.Kathmandu

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

IADKTM

Washington, D.C. Dulles Intl

Mon 19/10

19:13-17:30

2 stops36h 32m

Kathmandu Tribhuvan

Thu 12/11

09:35-08:10

1 stop33h 20m

£1,463

Washington, D.C.Kathmandu

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

IADKTM

Washington, D.C. Dulles Intl

Sun 4/10

21:00-16:15

1 stop33h 30m

Kathmandu Tribhuvan

Mon 30/11

17:40-23:09

2 stops40h 14m

£1,570

Flights are sorted by cheapest return flights first.

Deals found on 4/9

Showing 1-10 of 16 resultsSorted by cheapest first
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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 return price

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?

To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to Kathmandu, you should look to book at least 50 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Kathmandu (average of £896). Flying from Washington, D.C. Dulles Intl Airport to Kathmandu in June is currently the most expensive (average of £1,451). 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.

How much does it cost for a return flight from Washington, D.C. Dulles Intl Airport to Kathmandu?

Airfare is below average for this route at the moment.

Washington, D.C. Dulles Intl Airport to Kathmandu flights typically cost between £1,004 and £1,127 in October.
The cheapest return price found within the last 5 days was £983 on Multiple Airlines (2 Oct–9 Oct).

Related info for your journey

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

    Located just 2.5 mi from the city center, Kathmandu Tribhuvan is the airport most travelers will use when flying to Kathmandu from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to Tribhuvan (KTM) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Dulles Intl from 0 different airlines.

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

    There are many flights that can get you from Washington, D.C. Dulles Intl Airport to Kathmandu in 22h 15m. Fly via Emirates, Qatar Airways, or SWISS to get the fastest option. There are 7695 mi between Washington, D.C. Dulles Intl Airport and Kathmandu. Both multi-stop and direct flights can be found to your destination and back.

  • 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 holiday 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, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Kathmandu (average of £896). Flying from Washington, D.C. Dulles Intl Airport to Kathmandu in June is currently the most expensive (average of £1,451). 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

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

Certainly. Search results for flights to Kathmandu from Dulles Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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