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

Doha (DOH) was the most common stop: 70% of momondo users choosing 1-stop flights on this route connected there.

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

Kuwait City (KWI) has the shortest average layover time for this route: 3h 18m.

How long does it take to fly to Kathmandu?

If you’re flying from a popular airport in Washington, D.C., such as Washington, D.C. or Baltimore, and flying into Kathmandu, then you can expect flight times to average 21h 32m and 27h 56m, respectively.

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

Flights via Abu Dhabi (AUH) offer the lowest average round-trip price of $1,144.

What is the cheapest airline that flies from Washington, D.C. to Kathmandu Tribhuvan?

Air India and Qatar Airways are the most popular carriers operating from Washington, D.C. to Kathmandu Tribhuvan

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. according to our data. Qatar Airways is the first choice among our users, with 53% of people opting to fly with this airline when traveling to Kathmandu. Keep in mind that there are 7 different airlines that fly to Kathmandu on a routine basis, so you have a few additional options to choose from.

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

Flights connecting via Kuwait City (KWI) have the shortest average one-way travel time: 20h 05m.

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

Prices for flights from Washington, D.C. to Kathmandu Tribhuvan Airport were last updated today.

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

There are 7 operators available for flights from Washington, D.C. to Kathmandu Tribhuvan Airport as of June 2026.

How old do you have to be to fly from Washington, D.C. to Kathmandu Tribhuvan Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. to Kathmandu Tribhuvan Airport.

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

The required travel and health documents for your Kathmandu Tribhuvan Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Kathmandu Tribhuvan Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$666 Cheap Flights from Washington, D.C. to Kathmandu in 2026

Discover deals from 900+ travel sites with momondo.

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

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:30 am - 4:30 pm

DCA

KTM

24h 15m

2 stops

5:30 pm - 10:59 pm

KTM

DCA

39h 14m

2 stops

$1,397Multiple Airlines

Sun, Sep 13 - Sat, Sep 26

10:55 am - 6:10 pm

IAD

KTM

45h 30m

2 stops

1:25 pm - 8:40 am

KTM

IAD

53h 00m

2 stops

$1,398Multiple Airlines

Mon, Aug 3 - Sat, Aug 29

10:55 am - 12:50 pm

IAD

KTM

40h 10m

2 stops

8:10 am - 8:40 am

KTM

IAD

34h 15m

2 stops

$1,399Multiple Airlines

Tue, Jul 21 - Sat, Sep 26

11:05 am - 7:50 pm

IAD

KTM

23h 00m

2 stops

8:50 pm - 3:40 pm

KTM

IAD

52h 35m

2 stops

$1,400Multiple Airlines

Tue, Jul 21 - Mon, Aug 17

6:30 am - 4:30 pm

DCA

KTM

24h 15m

2 stops

9:05 pm - 10:48 pm

KTM

DCA

36h 28m

2 stops

$1,405Multiple Airlines

Wed, Oct 21 - Wed, Nov 11

10:55 am - 8:05 am

IAD

KTM

35h 25m

1 stop

12:35 am - 8:40 am

KTM

IAD

41h 50m

1 stop

$1,419Emirates

Tue, Aug 18 - Thu, Sep 3

10:55 am - 8:05 am

IAD

KTM

35h 25m

1 stop

3:35 pm - 8:40 am

KTM

IAD

26h 50m

1 stop

$1,420Emirates

Sun, Aug 16 - Mon, Sep 14

5:44 pm - 9:30 pm

BWI

KTM

42h 01m

2 stops

11:00 pm - 9:30 pm

KTM

BWI

33h 15m

3 stops

$1,732Singapore Airlines

Fri, Sep 11 - Mon, Jan 25

5:44 pm - 9:30 pm

BWI

KTM

42h 01m

2 stops

10:50 pm - 4:37 pm

KTM

BWI

51h 32m

2 stops

$1,750Singapore Airlines

Sun, Sep 13 - Sat, Sep 26

1:07 pm - 8:50 am

BWI

KTM

33h 58m

2 stops

6:45 pm - 11:55 pm

KTM

BWI

39h 55m

2 stops

$1,764Qatar Airways

Tue, Oct 20 - Wed, Nov 11

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Qatar Airways flights from Washington, D.C. to Kathmandu

Our best Qatar Airways deals on Washington, D.C. to Kathmandu flight tickets

Qatar Airways

Aug 19

IAD9:00 pmWashington, D.C. Dulles Intl

26h 05m

1 stop

KTM8:50 amKathmandu Tribhuvan

Sep 2

KTM6:00 pmKathmandu Tribhuvan

24h 30m

1 stop

IAD8:45 amWashington, D.C. Dulles Intl

$1,427

Qatar Airways

Aug 4

IAD11:05 amWashington, D.C. Dulles Intl

19h 55m

1 stop

KTM4:45 pmKathmandu Tribhuvan

Mar 12

KTM6:45 pmKathmandu Tribhuvan

31h 55m

1 stop

IAD3:55 pmWashington, D.C. Dulles Intl

$1,428

Qatar Airways

Sep 2

IAD9:00 pmWashington, D.C. Dulles Intl

26h 05m

1 stop

KTM8:50 amKathmandu Tribhuvan

Sep 21

KTM6:45 pmKathmandu Tribhuvan

30h 40m

1 stop

IAD3:40 pmWashington, D.C. Dulles Intl

$1,429

Singapore Airlines flights from Washington, D.C. to Kathmandu

Our best Singapore Airlines deals on Washington, D.C. to Kathmandu flight tickets

Singapore Airlines

Sep 11

BWI5:44 pmBaltimore/Washington

42h 01m

2 stops

KTM9:30 pmKathmandu Tribhuvan

Jan 25

KTM11:00 pmKathmandu Tribhuvan

33h 15m

3 stops

BWI9:30 pmBaltimore/Washington

$1,732

Singapore Airlines

Sep 13

BWI5:44 pmBaltimore/Washington

42h 01m

2 stops

KTM9:30 pmKathmandu Tribhuvan

Sep 26

KTM10:50 pmKathmandu Tribhuvan

51h 32m

2 stops

BWI4:37 pmBaltimore/Washington

$1,750

Singapore Airlines

Sep 14

BWI7:00 amBaltimore/Washington

52h 45m

2 stops

KTM9:30 pmKathmandu Tribhuvan

Sep 21

KTM11:10 pmKathmandu Tribhuvan

51h 10m

2 stops

BWI4:35 pmBaltimore/Washington

$1,765

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Kathmandu

DCA - KTM

DCAKTM

Washington, D.C. Reagan-National

Sun 9/13

6:30 am-4:30 pm

2 stops24h 15m

Kathmandu Tribhuvan

Sat 9/26

5:30 pm-10:59 pm

2 stops39h 14m

$1,397

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Mon 8/3

10:55 am-6:10 pm

2 stops45h 30m

Kathmandu Tribhuvan

Sat 8/29

1:25 pm-8:40 am

2 stops53h 00m

$1,398

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Tue 7/21

10:55 am-12:50 pm

2 stops40h 10m

Kathmandu Tribhuvan

Sat 9/26

8:10 am-8:40 am

2 stops34h 15m

$1,399

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Tue 7/21

11:05 am-7:50 pm

2 stops23h 00m

Kathmandu Tribhuvan

Mon 8/17

8:50 pm-3:40 pm

2 stops52h 35m

$1,400

Quickest round-trip

Washington, D.C.Kathmandu

DCA - KTM

DCAKTM

Washington, D.C. Reagan-National

Wed 10/21

6:30 am-4:30 pm

2 stops24h 15m

Kathmandu Tribhuvan

Wed 11/11

9:05 pm-10:48 pm

2 stops36h 28m

$1,405

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Tue 8/18

10:55 am-8:05 am

1 stop35h 25m

Kathmandu Tribhuvan

Thu 9/3

12:35 am-8:40 am

1 stop41h 50m

$1,419

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sun 8/16

10:55 am-8:05 am

1 stop35h 25m

Kathmandu Tribhuvan

Mon 9/14

3:35 pm-8:40 am

1 stop26h 50m

$1,420

BaltimoreKathmandu

BWI - KTM

BWIKTM

Baltimore/Washington

Fri 9/11

5:44 pm-9:30 pm

2 stops42h 01m

Kathmandu Tribhuvan

Mon 1/25

11:00 pm-9:30 pm

3 stops33h 15m

$1,732

BaltimoreKathmandu

BWI - KTM

BWIKTM

Baltimore/Washington

Sun 9/13

5:44 pm-9:30 pm

2 stops42h 01m

Kathmandu Tribhuvan

Sat 9/26

10:50 pm-4:37 pm

2 stops51h 32m

$1,750

BaltimoreKathmandu

BWI - KTM

BWIKTM

Baltimore/Washington

Tue 10/20

1:07 pm-8:50 am

2 stops33h 58m

Kathmandu Tribhuvan

Wed 11/11

6:45 pm-11:55 pm

2 stops39h 55m

$1,764

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. 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

Other information

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

What is the cheapest month to fly to Kathmandu?

The month of December is another great option to travel to Kathmandu, with average flight prices from Washington, D.C. averaging around $268.

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

You are more likely to see cheaper flights to Kathmandu from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Kathmandu for around $1,487 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. for as low as $1,329 on momondo.

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

You could potentially save up to 11% on your flight if you consider stops on a Washington, D.C. to Kathmandu flight.

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

As of June 2026, prices for Washington, D.C. to Kathmandu flights are approximately 17% cheaper when compared to flights at the same time last year.

When to book flights from Washington, D.C. to Kathmandu

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. 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. to Kathmandu (WAS to KTM) flight deals and tips

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

Fastest flight time	19h 45m
Direct flights	None

The fastest flight from Washington, D.C. to Kathmandu takes 19h 45m

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

Search flight deals

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

How far is Washington, D.C. to Kathmandu Tribhuvan by plane?
A flight from Washington, D.C. to Kathmandu Tribhuvan will travel around 7689.5 mi. A reasonable flight in good conditions will take 19h 45m.
When did momondo last update prices for flights from Washington, D.C. to Kathmandu Tribhuvan Airport?
Prices for flights from Washington, D.C. to Kathmandu Tribhuvan Airport were last updated today.
How many operators does momondo search for flights from Washington, D.C. to Kathmandu Tribhuvan Airport?
There are 7 operators available for flights from Washington, D.C. to Kathmandu Tribhuvan Airport as of June 2026.
How old do you have to be to fly from Washington, D.C. to Kathmandu Tribhuvan Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. to Kathmandu Tribhuvan Airport.
What documentation or ID do you need to fly to Kathmandu Tribhuvan Airport?
The required travel and health documents for your Kathmandu Tribhuvan Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Kathmandu Tribhuvan Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Washington, D.C. to Kathmandu?
momondo data reveals that the most frequently booked airline on the route from Washington, D.C. to Kathmandu is Qatar Airways, representing 51% of all bookings. The subsequent popular airlines are Emirates at 19%, Turkish Airlines at 13%, and Air India at 10%.

Best airlines flying from Washington, D.C. to Kathmandu

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

Airline	Rating	Free Cancellation	Price
IndiGo	PriceFrom $499	Free Cancellation	Rating 6.8 567 reviews	Search IndiGo flights
Air India	PriceFrom $799	Free Cancellation	Rating 5.5 2,959 reviews	Search Air India flights
Turkish Airlines	PriceFrom $1,080	Free Cancellation	Rating 7.4 4,408 reviews	Search Turkish Airlines flights
Emirates	PriceFrom $1,095	Free Cancellation	Rating 8.1 3,583 reviews	Search Emirates flights
Etihad Airways	PriceFrom $1,242	Free Cancellation	Rating 7.3 1,452 reviews	Search Etihad Airways flights
Qatar Airways	PriceFrom $1,257	Free Cancellation	Rating 7.3 3,726 reviews	Search Qatar Airways flights
SWISS	PriceFrom $1,638	Free Cancellation	Rating 7.5 1,968 reviews	Search SWISS flights

Nagarkot

Why use momondo?

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

Finding the right flight to Kathmandu from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Kathmandu quick and easy, saving you time and money.

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

Yes. All flights to Kathmandu from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Kathmandu from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Kathmandu from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Kathmandu trip

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Qatar Airways flights from Washington, D.C. to Kathmandufrom $1,253

Cheap flights from Washington, D.C. to Kathmandu from $666

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Kathmandu departing on 9/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Qatar Airways flights from Washington, D.C. to Kathmandu

Our best Qatar Airways deals on Washington, D.C. to Kathmandu flight tickets

Singapore Airlines flights from Washington, D.C. to Kathmandu

Our best Singapore Airlines deals on Washington, D.C. to Kathmandu flight tickets

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

See travel insights to Kathmandu from

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

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

What is the cheapest month to fly to Kathmandu?

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

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

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

What is the cheapest airline that flies from Washington, D.C. to Kathmandu Tribhuvan?

What airlines fly to Kathmandu?

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

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

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

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

How long does it take to fly to Kathmandu?

When to book flights from Washington, D.C. to Kathmandu

Cheap Washington, D.C. to Kathmandu (WAS to KTM) flight deals and tips

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

Fastest flight time

Direct flights

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

Best airlines flying from Washington, D.C. to Kathmandu

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

Traveling to a place near Kathmandu?

Why use momondo?

An easier way to manage your Kathmandu trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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Fly your favorite airline to Kathmandu

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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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