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Cheap flights from Washington, D.C. to Kathmandu from $406

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 8/19. 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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Find the cheapest flights from Washington, D.C. to Kathmandu

Cheap round-trip flights

IndiGo Logo
9:40 pm - 3:40 pmIAD-KTM
32h 15m2 stops
IndiGo Logo
10:50 am - 7:45 pmKTM-IAD
42h 40m2 stops
$920IndiGo
Find Deal
Mon, Sep 1 - Tue, Sep 23
IndiGo Logo
9:40 pm - 1:00 pmIAD-KTM
29h 35m2 stops
IndiGo Logo
10:50 am - 7:45 pmKTM-IAD
42h 40m2 stops
$931IndiGo
Find Deal
Mon, Sep 1 - Wed, Sep 24
Logo
10:05 pm - 6:10 pmIAD-KTM
34h 20m2 stops
Logo
1:25 pm - 4:10 pmKTM-IAD
36h 30m2 stops
$945
Find Deal
Sat, Aug 30 - Sat, Sep 20
Logo
10:05 pm - 6:10 pmIAD-KTM
34h 20m2 stops
Logo
1:25 pm - 4:10 pmKTM-IAD
36h 30m2 stops
$983
Find Deal
Sat, Sep 6 - Mon, Oct 6
Air India Logo
5:55 pm - 6:35 amDCA-KTM
50h 55m2 stops
Air India Logo
6:30 am - 2:50 pmKTM-DCA
43h 05m2 stops
$984Air India
Find Deal
Wed, Sep 10 - Mon, Nov 10
Air India Logo
5:55 pm - 6:35 amDCA-KTM
50h 55m2 stops
Air India Logo
7:35 am - 2:50 pmKTM-DCA
42h 00m2 stops
$985Air India
Find Deal
Wed, Sep 3 - Mon, Nov 10
Singapore Airlines Logo
5:50 pm - 9:50 pmBWI-KTM
41h 15m2 stops
Singapore Airlines Logo
11:00 pm - 4:47 pmKTM-BWI
52h 32m2 stops
$1,642Singapore Airlines
Find Deal
Tue, Jan 6 - Tue, Jan 20
Singapore Airlines Logo
5:50 pm - 9:50 pmBWI-KTM
41h 15m2 stops
Singapore Airlines Logo
11:00 pm - 4:47 pmKTM-BWI
52h 32m3 stops
$1,655Singapore Airlines
Find Deal
Tue, Jan 6 - Tue, Jan 20
Qatar Airways Logo
11:23 am - 8:50 amBWI-KTM
35h 42m2 stops
Qatar Airways Logo
6:00 pm - 10:42 pmKTM-BWI
38h 27m2 stops
$1,782Qatar Airways
Find Deal
Tue, Sep 9 - Tue, Sep 16
Qatar Airways Logo
11:23 am - 4:45 pmBWI-KTM
43h 37m2 stops
Qatar Airways Logo
7:05 pm - 10:42 pmKTM-BWI
37h 22m2 stops
$1,784Qatar Airways
Find Deal
Tue, Sep 23 - Tue, Sep 30

IndiGo flights from Washington, D.C. to Kathmandu

Our best IndiGo deals on Washington, D.C. to Kathmandu flight tickets
IndiGo
Sep 1
IAD9:40 pmWashington, D.C. Dulles Intl
32h 15m
2 stops
KTM3:40 pmKathmandu Tribhuvan
Sep 23
KTM10:50 amKathmandu Tribhuvan
42h 40m
2 stops
IAD7:45 pmWashington, D.C. Dulles Intl
$920
Find similar
IndiGo
Sep 1
IAD9:40 pmWashington, D.C. Dulles Intl
29h 35m
2 stops
KTM1:00 pmKathmandu Tribhuvan
Sep 24
KTM10:50 amKathmandu Tribhuvan
42h 40m
2 stops
IAD7:45 pmWashington, D.C. Dulles Intl
$931
Find similar
IndiGo
Sep 1
IAD9:40 pmWashington, D.C. Dulles Intl
32h 15m
2 stops
KTM3:40 pmKathmandu Tribhuvan
Sep 22
KTM2:00 pmKathmandu Tribhuvan
39h 30m
2 stops
IAD7:45 pmWashington, D.C. Dulles Intl
$932
Find similar

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 20
IAD11:00 amWashington, D.C. Dulles Intl
20h 00m
1 stop
KTM4:45 pmKathmandu Tribhuvan
Aug 27
KTM10:05 amKathmandu Tribhuvan
39h 20m
1 stop
IAD3:40 pmWashington, D.C. Dulles Intl
$1,598
Find similar
Qatar Airways
Aug 21
IAD11:00 amWashington, D.C. Dulles Intl
20h 00m
1 stop
KTM4:45 pmKathmandu Tribhuvan
Aug 27
KTM10:05 amKathmandu Tribhuvan
39h 20m
1 stop
IAD3:40 pmWashington, D.C. Dulles Intl
$1,601
Find similar
Qatar Airways
Aug 19
IAD11:00 amWashington, D.C. Dulles Intl
20h 00m
1 stop
KTM4:45 pmKathmandu Tribhuvan
Aug 26
KTM6:00 pmKathmandu Tribhuvan
24h 25m
1 stop
IAD8:40 amWashington, D.C. Dulles Intl
$1,609
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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, momondo users made 832,500 searches. Data last updated August 14, 2025.
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

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Mon 9/1

9:40 pm-3:40 pm

2 stops32h 15m

Kathmandu Tribhuvan

Tue 9/23

10:50 am-7:45 pm

2 stops42h 40m

$920

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Mon 9/1

9:40 pm-1:00 pm

2 stops29h 35m

Kathmandu Tribhuvan

Wed 9/24

10:50 am-7:45 pm

2 stops42h 40m

$931

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sat 8/30

10:05 pm-6:10 pm

2 stops34h 20m

Kathmandu Tribhuvan

Sat 9/20

1:25 pm-4:10 pm

2 stops36h 30m

$945

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sat 9/6

10:05 pm-6:10 pm

2 stops34h 20m

Kathmandu Tribhuvan

Mon 10/6

1:25 pm-4:10 pm

2 stops36h 30m

$983

Washington, D.C.Kathmandu

DCA - KTM

DCAKTM

Washington, D.C. Reagan-National

Wed 9/10

5:55 pm-6:35 am

2 stops50h 55m

Kathmandu Tribhuvan

Mon 11/10

6:30 am-2:50 pm

2 stops43h 05m

$984

Washington, D.C.Kathmandu

DCA - KTM

DCAKTM

Washington, D.C. Reagan-National

Wed 9/3

5:55 pm-6:35 am

2 stops50h 55m

Kathmandu Tribhuvan

Mon 11/10

7:35 am-2:50 pm

2 stops42h 00m

$985

BaltimoreKathmandu

BWI - KTM

BWIKTM

Baltimore/Washington

Tue 1/6

5:50 pm-9:50 pm

2 stops41h 15m

Kathmandu Tribhuvan

Tue 1/20

11:00 pm-4:47 pm

2 stops52h 32m

$1,642

BaltimoreKathmandu

BWI - KTM

BWIKTM

Baltimore/Washington

Tue 1/6

5:50 pm-9:50 pm

2 stops41h 15m

Kathmandu Tribhuvan

Tue 1/20

11:00 pm-4:47 pm

3 stops52h 32m

$1,655

BaltimoreKathmandu

BWI - KTM

BWIKTM

Baltimore/Washington

Tue 9/9

11:23 am-8:50 am

2 stops35h 42m

Kathmandu Tribhuvan

Tue 9/16

6:00 pm-10:42 pm

2 stops38h 27m

$1,782

BaltimoreKathmandu

BWI - KTM

BWIKTM

Baltimore/Washington

Tue 9/23

11:23 am-4:45 pm

2 stops43h 37m

Kathmandu Tribhuvan

Tue 9/30

7:05 pm-10:42 pm

2 stops37h 22m

$1,784

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Kathmandu from

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

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 August is another great option to travel to Kathmandu, with average flight prices from Washington, D.C. averaging around $1,259.

What is the cheapest day to depart on your flight to Kathmandu?

According to our data, Saturday is the cheapest day to fly to Kathmandu from Washington, D.C.. The lowest ticket price found for a Saturday departure recently was $1,105. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Washington, D.C. to Kathmandu on a Thursday will generally be more expensive and average around $1,464. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Kathmandu?

In the morning is the cheapest time of day to fly from Washington, D.C. to Kathmandu when you can find flight prices for as low as $1,195. Flying to Kathmandu in the morning is an ideal time because this is during off-peak travel hours. Flights at noon are often more expensive with an average ticket price of $1,696.

What is the cheapest Washington, D.C. to Kathmandu Tribhuvan flight route?

Fly from Washington, D.C. Dulles Intl to Kathmandu Tribhuvan for the best Washington, D.C. - Kathmandu Tribhuvan flight prices

How far in advance should I book a flight 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 $1,474 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 $1,241 on momondo.

What cabin class options are available on Washington, D.C. to Kathmandu Tribhuvan flights?

There are 1 cabin classes available to choose from on Washington, D.C. to Kathmandu Tribhuvan flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

You could potentially save up to 16% 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 August 2025, prices for Washington, D.C. to Kathmandu flights are approximately 23% 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

Best Price Found

$406

Fastest flight time

21h 30m

Direct flights

None

Airports in Kathmandu

1 airport
The best one-way flight to Kathmandu from Washington, D.C. in the past 72 hours is $406. The best round-trip flight deal from Washington, D.C. to Kathmandu found on momondo in the last 72 hours is $920.
The fastest flight from Washington, D.C. to Kathmandu takes 21h 30m
There are no direct flights from Washington, D.C. to Kathmandu. Popular non-direct routes for this connection are Washington, D.C. Reagan-National Airport - Kathmandu Tribhuvan Airport and Washington, D.C. Dulles Intl Airport - Kathmandu Tribhuvan Airport.
There is 1 airport near Kathmandu: Kathmandu Tribhuvan (KTM)
Search flight deals

  • 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 21h 30m.

  • 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?

  • 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?

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
Etihad AirwaysPriceFrom $777Free CancellationRating
7.4
1,232 reviews
Search Etihad Airways flights
Air IndiaPriceFrom $870Free CancellationRating
5.5
2,930 reviews
Search Air India flights
EmiratesPriceFrom $1,092Free CancellationRating
8.1
3,315 reviews
Search Emirates flights
IndiGoPriceFrom $1,156Free CancellationRating
6.8
479 reviews
Search IndiGo flights
Qatar AirwaysPriceFrom $1,179Free CancellationRating
7.4
3,608 reviews
Search Qatar Airways flights
Turkish AirlinesPriceFrom $1,190Free CancellationRating
7.3
3,940 reviews
Search Turkish Airlines flights
Singapore AirlinesPriceFrom $1,275Free CancellationRating
8.1
1,346 reviews
Search Singapore Airlines flights
SWISSPriceFrom $1,324Free CancellationRating
7.5
1,699 reviews
Search SWISS flights

Traveling to a place near Kathmandu?

Book flights to Kathmandu if you plan to visit one of these locations
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.

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