Which layover airport has the shortest connection time from Washington, D.C. Dulles Intl Airport to Kathmandu?

Incheon (ICN) has the shortest average layover time for this route: 6h 18m.

Which layover airport has the shortest travel time from Washington, D.C. Dulles Intl Airport to Kathmandu?

Flights connecting via Doha (DOH) have the shortest average one-way travel time: 22h 45m.

Which airport is the most popular layover for flights between Washington, D.C. Dulles Intl Airport and Kathmandu?

Doha (DOH) was the most common stop: 81% of momondo users choosing 1-stop flights on this route connected there.

What airlines fly to Kathmandu?

Qatar Airways, Emirates and Turkish Airlines are the top three most popular airlines that fly to Kathmandu from Washington, D.C. Dulles Intl Airport according to our data. Qatar Airways is the first choice among our users, with 64% of people opting to fly with this airline when traveling to Kathmandu. Keep in mind that there are 6 different airlines that fly to Kathmandu on a routine basis, so you have a few additional options to choose from.

Which layover airport offers the lowest fares from Washington, D.C. Dulles Intl Airport to Kathmandu?

Flights via Abu Dhabi (AUH) offer the lowest average round-trip price of $1,304.

When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Kathmandu Tribhuvan Airport?

Prices for flights from Washington, D.C. Dulles Intl Airport to Kathmandu Tribhuvan Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Kathmandu Tribhuvan Airport?

As of September 2026, there are 6 operators available to choose from for flights from Washington, D.C. Dulles Intl Airport to Kathmandu Tribhuvan Airport.

What documentation or ID do you need to fly to Kathmandu Tribhuvan Airport?

The travel and health documents you'll need for your trip to Kathmandu Tribhuvan Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Kathmandu Tribhuvan Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$589 Cheap Flights from Washington, D.C. Dulles Intl Airport to Kathmandu in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Kathmandu

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:35 pm - 1:45 pmIAD Washington, D.C. Dulles Intl-KTM Kathmandu Tribhuvan

36h 25m2 stops Abu Dhabi Zayed Intl Mumbai Chhatrapati Shivaji Intl

2:45 pm - 9:05 amKTM Kathmandu Tribhuvan-IAD Washington, D.C. Dulles Intl

29h 05m2 stops Mumbai Chhatrapati Shivaji Intl Abu Dhabi Zayed Intl

$1,114Multiple Airlines

Fri, Feb 5 - Thu, Mar 4

3:10 pm - 7:50 pmIAD Washington, D.C. Dulles Intl-KTM Kathmandu Tribhuvan

42h 55m2 stops Abu Dhabi Zayed Intl New Delhi Indira Gandhi Intl

2:05 pm - 9:45 amKTM Kathmandu Tribhuvan-IAD Washington, D.C. Dulles Intl

29h 25m2 stops New Delhi Indira Gandhi Intl Abu Dhabi Zayed Intl

$1,116Multiple Airlines

Fri, Oct 16 - Fri, Oct 23

1:30 pm - 11:20 amIAD Washington, D.C. Dulles Intl-KTM Kathmandu Tribhuvan

35h 05m1 stop Istanbul

7:40 am - 11:35 amKTM Kathmandu Tribhuvan-IAD Washington, D.C. Dulles Intl

37h 40m1 stop Istanbul

$1,376Turkish Airlines

Thu, Feb 25 - Thu, Jun 3

1:30 pm - 11:20 amIAD Washington, D.C. Dulles Intl-KTM Kathmandu Tribhuvan

35h 05m1 stop Istanbul

12:45 pm - 11:45 amKTM Kathmandu Tribhuvan-IAD Washington, D.C. Dulles Intl

33h 45m1 stop Istanbul

$1,376Turkish Airlines

Mon, Feb 1 - Wed, Feb 17

10:30 am - 11:30 pmIAD Washington, D.C. Dulles Intl-KTM Kathmandu Tribhuvan

26h 15m1 stop Dubai Intl

12:35 am - 8:40 amKTM Kathmandu Tribhuvan-IAD Washington, D.C. Dulles Intl

41h 50m1 stop Dubai Intl

$1,465Emirates

Wed, Mar 10 - Thu, Apr 1

10:30 am - 11:30 pmIAD Washington, D.C. Dulles Intl-KTM Kathmandu Tribhuvan

26h 15m1 stop Dubai Intl

12:35 am - 8:40 amKTM Kathmandu Tribhuvan-IAD Washington, D.C. Dulles Intl

41h 50m1 stop Dubai Intl

$1,465Emirates

Wed, Mar 10 - Thu, Apr 29

9:05 pm - 8:20 amIAD Washington, D.C. Dulles Intl-KTM Kathmandu Tribhuvan

25h 30m1 stop Doha Hamad Intl

6:00 pm - 3:40 pmKTM Kathmandu Tribhuvan-IAD Washington, D.C. Dulles Intl

31h 25m1 stop Doha Hamad Intl

$1,570Qatar Airways

Wed, Mar 24 - Wed, Mar 31

11:05 am - 4:15 pmIAD Washington, D.C. Dulles Intl-KTM Kathmandu Tribhuvan

19h 25m1 stop Doha Hamad Intl

11:05 am - 3:55 pmKTM Kathmandu Tribhuvan-IAD Washington, D.C. Dulles Intl

39h 35m1 stop Doha Hamad Intl

$1,573Qatar Airways

Tue, Oct 20 - Fri, Nov 20

8:10 pm - 6:35 amIAD Washington, D.C. Dulles Intl-KTM Kathmandu Tribhuvan

23h 40m2 stops Zurich New Delhi Indira Gandhi Intl

9:40 pm - 3:15 pmKTM Kathmandu Tribhuvan-IAD Washington, D.C. Dulles Intl

27h 20m2 stops New Delhi Indira Gandhi Intl Zurich

$1,959SWISS

Tue, Dec 1 - Wed, Apr 14

5:25 pm - 6:35 amIAD Washington, D.C. Dulles Intl-KTM Kathmandu Tribhuvan

26h 25m2 stops Zurich New Delhi Indira Gandhi Intl

9:40 pm - 3:15 pmKTM Kathmandu Tribhuvan-IAD Washington, D.C. Dulles Intl

27h 20m2 stops New Delhi Indira Gandhi Intl Zurich

$1,959SWISS

Tue, Dec 1 - Fri, Apr 16

Cheap last minute flights

Enter your travel dates to find the best prices.

3:10 pm - 8:10 pmIAD Washington, D.C. Dulles Intl-KTM Kathmandu Tribhuvan

43h 15m2 stops Abu Dhabi Zayed Intl New Delhi Indira Gandhi Intl

7:20 am - 8:25 amKTM Kathmandu Tribhuvan-IAD Washington, D.C. Dulles Intl

34h 50m2 stops Kuwait City Amman Queen Alia Intl

$1,287Multiple Airlines

Sat, Oct 3 - Sat, Oct 31

3:10 pm - 12:05 amIAD Washington, D.C. Dulles Intl-KTM Kathmandu Tribhuvan

23h 10m2 stops Abu Dhabi Zayed Intl New Delhi Indira Gandhi Intl

1:45 pm - 9:05 amKTM Kathmandu Tribhuvan-IAD Washington, D.C. Dulles Intl

30h 05m2 stops New Delhi Indira Gandhi Intl Abu Dhabi Zayed Intl

$1,288Multiple Airlines

Thu, Oct 1 - Sun, Nov 1

3:10 pm - 6:35 amIAD Washington, D.C. Dulles Intl-KTM Kathmandu Tribhuvan

29h 40m3 stops Abu Dhabi Zayed Intl Hyderabad Rajiv Gandhi Intl New Delhi Indira Gandhi Intl

10:50 am - 9:45 amKTM Kathmandu Tribhuvan-IAD Washington, D.C. Dulles Intl

32h 40m2 stops New Delhi Indira Gandhi Intl Abu Dhabi Zayed Intl

$1,312Multiple Airlines

Tue, Sep 29 - Thu, Oct 1

11:05 am - 5:45 pmIAD Washington, D.C. Dulles Intl-KTM Kathmandu Tribhuvan

20h 55m1 stop Doha Hamad Intl

11:05 am - 3:55 pmKTM Kathmandu Tribhuvan-IAD Washington, D.C. Dulles Intl

39h 35m1 stop Doha Hamad Intl

$1,573Qatar Airways

Tue, Sep 29 - Wed, Nov 25

9:00 pm - 8:50 amIAD Washington, D.C. Dulles Intl-KTM Kathmandu Tribhuvan

26h 05m1 stop Doha Hamad Intl

11:05 am - 3:55 pmKTM Kathmandu Tribhuvan-IAD Washington, D.C. Dulles Intl

39h 35m1 stop Doha Hamad Intl

$1,598Qatar Airways

Mon, Sep 28 - Tue, Nov 24

9:00 pm - 8:50 amIAD Washington, D.C. Dulles Intl-KTM Kathmandu Tribhuvan

26h 05m1 stop Doha Hamad Intl

9:35 am - 3:55 pmKTM Kathmandu Tribhuvan-IAD Washington, D.C. Dulles Intl

41h 05m1 stop Doha Hamad Intl

$1,598Qatar Airways

Mon, Sep 28 - Wed, Nov 25

9:40 pm - 6:35 amIAD Washington, D.C. Dulles Intl-KTM Kathmandu Tribhuvan

23h 10m1 stop Istanbul

12:45 pm - 11:45 amKTM Kathmandu Tribhuvan-IAD Washington, D.C. Dulles Intl

33h 45m1 stop Istanbul

$2,742Turkish Airlines

Fri, Oct 2 - Sun, Nov 22

9:40 pm - 6:35 amIAD Washington, D.C. Dulles Intl-KTM Kathmandu Tribhuvan

23h 10m1 stop Istanbul

12:45 pm - 7:25 pmKTM Kathmandu Tribhuvan-IAD Washington, D.C. Dulles Intl

41h 25m1 stop Istanbul

$3,308Turkish Airlines

Fri, Oct 2 - Wed, Nov 25

5:35 pm - 6:35 amIAD Washington, D.C. Dulles Intl-KTM Kathmandu Tribhuvan

27h 15m3 stops Amsterdam Schiphol Zurich New Delhi Indira Gandhi Intl

9:40 pm - 2:30 pmKTM Kathmandu Tribhuvan-IAD Washington, D.C. Dulles Intl

27h 35m3 stops New Delhi Indira Gandhi Intl Zurich Brussels Bruxelles-National

$3,791SWISS

Wed, Sep 30 - Thu, Nov 26

5:45 pm - 6:35 amIAD Washington, D.C. Dulles Intl-KTM Kathmandu Tribhuvan

51h 05m2 stops Zurich New Delhi Indira Gandhi Intl

9:40 pm - 5:00 pmKTM Kathmandu Tribhuvan-IAD Washington, D.C. Dulles Intl

30h 05m2 stops New Delhi Indira Gandhi Intl Zurich

$4,140SWISS

Thu, Oct 1 - Sat, Dec 26

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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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Kathmandu

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

IADKTM

Washington, D.C. Dulles Intl

Fri 2/5

2:35 pm-1:45 pm

2 stops36h 25m

Kathmandu Tribhuvan

Thu 3/4

2:45 pm-9:05 am

2 stops29h 05m

$1,114

Washington, D.C.Kathmandu

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

IADKTM

Washington, D.C. Dulles Intl

Fri 10/16

3:10 pm-7:50 pm

2 stops42h 55m

Kathmandu Tribhuvan

Fri 10/23

2:05 pm-9:45 am

2 stops29h 25m

$1,116

Washington, D.C.Kathmandu

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

IADKTM

Washington, D.C. Dulles Intl

Thu 2/25

1:30 pm-11:20 am

1 stop35h 05m

Kathmandu Tribhuvan

Thu 6/3

7:40 am-11:35 am

1 stop37h 40m

$1,376

Washington, D.C.Kathmandu

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

IADKTM

Washington, D.C. Dulles Intl

Mon 2/1

1:30 pm-11:20 am

1 stop35h 05m

Kathmandu Tribhuvan

Wed 2/17

12:45 pm-11:45 am

1 stop33h 45m

$1,376

Washington, D.C.Kathmandu

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

IADKTM

Washington, D.C. Dulles Intl

Wed 3/10

10:30 am-11:30 pm

1 stop26h 15m

Kathmandu Tribhuvan

Thu 4/1

12:35 am-8:40 am

1 stop41h 50m

$1,465

Washington, D.C.Kathmandu

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

IADKTM

Washington, D.C. Dulles Intl

Wed 3/10

10:30 am-11:30 pm

1 stop26h 15m

Kathmandu Tribhuvan

Thu 4/29

12:35 am-8:40 am

1 stop41h 50m

$1,465

Washington, D.C.Kathmandu

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

IADKTM

Washington, D.C. Dulles Intl

Wed 3/24

9:05 pm-8:20 am

1 stop25h 30m

Kathmandu Tribhuvan

Wed 3/31

6:00 pm-3:40 pm

1 stop31h 25m

$1,570

Washington, D.C.Kathmandu

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

IADKTM

Washington, D.C. Dulles Intl

Tue 10/20

11:05 am-4:15 pm

1 stop19h 25m

Kathmandu Tribhuvan

Fri 11/20

11:05 am-3:55 pm

1 stop39h 35m

$1,573

Quickest round-trip

Washington, D.C.Kathmandu

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

IADKTM

Washington, D.C. Dulles Intl

Tue 12/1

8:10 pm-6:35 am

2 stops23h 40m

Kathmandu Tribhuvan

Wed 4/14

9:40 pm-3:15 pm

2 stops27h 20m

$1,959

Washington, D.C.Kathmandu

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

IADKTM

Washington, D.C. Dulles Intl

Tue 12/1

5:25 pm-6:35 am

2 stops26h 25m

Kathmandu Tribhuvan

Fri 4/16

9:40 pm-3:15 pm

2 stops27h 20m

$1,959

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Kathmandu

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the typical price of a round-trip flight between Washington, D.C. Dulles Intl Airport and Kathmandu?

Prices are currently low for flights on this route.

Typical prices usually range from $1,316 to $1,543.
The lowest price recently found on this route was $1,114.

What is the cheapest month to fly to Kathmandu?

The month of January is another great option to travel to Kathmandu, with average flight prices from Washington, D.C. Dulles Intl Airport averaging around $1,341.

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

You are more likely to see cheaper flights to Kathmandu from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Kathmandu for around $1,503 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Kathmandu from Washington, D.C. Dulles Intl Airport for as low as $1,386 on momondo.

Can stopping save me money on Washington, D.C. Dulles Intl Airport to Kathmandu flights?

You could potentially save up to 8% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Kathmandu flight.

How have Washington, D.C. Dulles Intl Airport to Kathmandu flight prices changed over time?

As of September 2026, prices for Washington, D.C. Dulles Intl Airport to Kathmandu flights are approximately 14% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. Dulles Intl Airport to Kathmandu

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Kathmandu according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Kathmandu (IAD to KTM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Kathmandu

Best Price Found	$589
Fastest flight time	25h 30m
Direct flights	None

The best one-way flight to Kathmandu from Washington, D.C. Dulles Intl Airport in the past 72 hours is $589. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Kathmandu found on momondo in the last 72 hours is $1,114.

The fastest flight from Washington, D.C. Dulles Intl Airport to Kathmandu takes 25h 30m

There are no direct flights from Washington, D.C. Dulles Intl Airport to Kathmandu. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Kathmandu.

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Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Kathmandu

How far is Washington, D.C. Dulles Intl to Kathmandu Tribhuvan by plane?
The straight-line distance from Washington, D.C. Dulles Intl to Kathmandu Tribhuvan is 7693.1 mi. A reasonable flight in good conditions will take 25h 30m.
When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Kathmandu Tribhuvan Airport?
Prices for flights from Washington, D.C. Dulles Intl Airport to Kathmandu Tribhuvan Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Kathmandu Tribhuvan Airport?
As of September 2026, there are 6 operators available to choose from for flights from Washington, D.C. Dulles Intl Airport to Kathmandu Tribhuvan Airport.
How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Kathmandu Tribhuvan Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl Airport to Kathmandu Tribhuvan Airport.
What documentation or ID do you need to fly to Kathmandu Tribhuvan Airport?
The travel and health documents you'll need for your trip to Kathmandu Tribhuvan Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Kathmandu Tribhuvan Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Washington, D.C. Dulles Intl Airport to Kathmandu?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Washington, D.C. Dulles Intl Airport to Kathmandu is Qatar Airways (62% of total bookings). The next most popular airlines are Emirates (18%), Turkish Airlines (17%), and IndiGo (2%).

Best airlines flying from Washington, D.C. Dulles Intl Airport to Kathmandu

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Kathmandu with momondo

Airline	Rating	Free Cancellation	Price
IndiGo	PriceFrom $489	Free Cancellation	Rating 6.8 582 reviews	Search IndiGo flights
Turkish Airlines	PriceFrom $1,057	Free Cancellation	Rating 7.4 4,454 reviews	Search Turkish Airlines flights
Etihad Airways	PriceFrom $1,108	Free Cancellation	Rating 7.3 1,540 reviews	Search Etihad Airways flights
Emirates	PriceFrom $1,163	Free Cancellation	Rating 8.1 3,667 reviews	Search Emirates flights
Qatar Airways	PriceFrom $1,216	Free Cancellation	Rating 7.3 3,730 reviews	Search Qatar Airways flights
SWISS	PriceFrom $1,638	Free Cancellation	Rating 7.5 2,083 reviews	Search SWISS flights

Nagarkot

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Kathmandu?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Kathmandu. momondo saves you time and could save you money on your trip.

Can I find flights from Washington, D.C. to Kathmandu with flexible booking policies on momondo?

Flights from Washington, D.C. to Kathmandu with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Washington, D.C. to Kathmandu?

momondo helps you find the best flight between Washington, D.C. and Kathmandu by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Washington, D.C. to Kathmandu right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Washington, D.C. to Kathmandu flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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See travel insights to Kathmandu from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Kathmandu

What is the typical price of a round-trip flight between Washington, D.C. Dulles Intl Airport and Kathmandu?

What is the cheapest month to fly to Kathmandu?

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

Can stopping save me money on Washington, D.C. Dulles Intl Airport to Kathmandu flights?

How have Washington, D.C. Dulles Intl Airport to Kathmandu flight prices changed over time?

What airlines fly to Kathmandu?

Which airport is the most popular layover for flights between Washington, D.C. Dulles Intl Airport and Kathmandu?

Which layover airport offers the lowest fares from Washington, D.C. Dulles Intl Airport to Kathmandu?

Which layover airport has the shortest travel time from Washington, D.C. Dulles Intl Airport to Kathmandu?

Which layover airport has the shortest connection time from Washington, D.C. Dulles Intl Airport to Kathmandu?

When to book flights from Washington, D.C. Dulles Intl Airport to Kathmandu

Cheap Washington, D.C. Dulles Intl Airport to Kathmandu (IAD to KTM) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Kathmandu

Best airlines flying from Washington, D.C. Dulles Intl Airport to Kathmandu

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Kathmandu with momondo

Traveling to a place near Kathmandu?

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An easier way to manage your Kathmandu trip

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Cabin classes currently available on flights to Kathmandu

List of cabin classes available on flights landing in Kathmandu. Availability may vary depending on flight origin and airline.

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