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Cheap flights from Washington, D.C. to Kathmandu from $462

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 12/29. 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
1:30 pm - 9:50 amIAD-KTM
33h 35m2 stops
IndiGo Logo
10:50 am - 7:15 pmKTM-IAD
43h 10m2 stops
$1,087IndiGo
Find Deal
Sun, Nov 2 - Mon, Dec 15
IndiGo Logo
10:10 pm - 3:40 pmIAD-KTM
31h 45m2 stops
IndiGo Logo
10:50 am - 7:15 pmKTM-IAD
43h 10m2 stops
$1,089IndiGo
Find Deal
Sat, Nov 1 - Tue, Dec 16
Multiple Airlines Logo
10:05 pm - 6:10 pmIAD-KTM
34h 20m2 stops
Multiple Airlines Logo
1:25 pm - 4:10 pmKTM-IAD
36h 30m2 stops
$1,092Multiple Airlines
Find Deal
Wed, Sep 24 - Tue, Oct 7
Multiple Airlines Logo
6:50 pm - 3:40 pmIAD-KTM
35h 05m2 stops
Multiple Airlines Logo
2:05 pm - 3:45 pmKTM-IAD
35h 25m2 stops
$1,096Multiple Airlines
Find Deal
Sat, Oct 18 - Thu, Oct 30
Emirates Logo
10:55 am - 11:20 pmIAD-KTM
26h 40m1 stop
Emirates Logo
12:20 am - 8:40 amKTM-IAD
42h 05m1 stop
$1,163Emirates
Find Deal
Tue, Sep 23 - Tue, Sep 30
Emirates Logo
10:55 am - 11:20 pmIAD-KTM
26h 40m1 stop
Emirates Logo
7:30 am - 8:40 amKTM-IAD
34h 55m1 stop
$1,213Emirates
Find Deal
Sat, Sep 20 - Mon, Oct 6
Air India Logo
5:20 pm - 6:35 amDCA-KTM
51h 30m2 stops
Air India Logo
9:00 pm - 2:50 pmKTM-DCA
28h 35m2 stops
$1,275Air India
Find Deal
Tue, Oct 7 - Sun, Nov 9
Air India Logo
6:25 am - 6:35 amDCA-KTM
38h 25m2 stops
Air India Logo
5:30 pm - 2:50 pmKTM-DCA
32h 05m2 stops
$1,346Air India
Find Deal
Wed, Oct 22 - Sun, Nov 16
Qatar Airways Logo
11:52 am - 5:30 pmBWI-KTM
42h 53m2 stops
Qatar Airways Logo
6:45 pm - 11:52 pmKTM-BWI
39h 52m2 stops
$1,538Qatar Airways
Find Deal
Wed, Nov 5 - Wed, Dec 3
Qatar Airways Logo
1:04 pm - 4:25 pmBWI-KTM
40h 36m2 stops
Qatar Airways Logo
10:05 am - 9:32 pmKTM-BWI
45h 12m2 stops
$1,567Qatar Airways
Find Deal
Tue, Feb 10 - Fri, Apr 10

IndiGo flights from Washington, D.C. to Kathmandu

Our best IndiGo deals on Washington, D.C. to Kathmandu flight tickets
IndiGo
Nov 2
IAD1:30 pmWashington, D.C. Dulles Intl
33h 35m
2 stops
KTM9:50 amKathmandu Tribhuvan
Dec 15
KTM10:50 amKathmandu Tribhuvan
43h 10m
2 stops
IAD7:15 pmWashington, D.C. Dulles Intl
$1,087
Find similar
IndiGo
Nov 1
IAD10:10 pmWashington, D.C. Dulles Intl
31h 45m
2 stops
KTM3:40 pmKathmandu Tribhuvan
Dec 16
KTM10:50 amKathmandu Tribhuvan
43h 10m
2 stops
IAD7:15 pmWashington, D.C. Dulles Intl
$1,089
Find similar
IndiGo
Nov 21
IAD1:30 pmWashington, D.C. Dulles Intl
33h 35m
2 stops
KTM9:50 amKathmandu Tribhuvan
Jan 22
KTM10:50 amKathmandu Tribhuvan
43h 10m
2 stops
IAD7:15 pmWashington, D.C. Dulles Intl
$1,109
Find similar

Emirates flights from Washington, D.C. to Kathmandu

Our best Emirates deals on Washington, D.C. to Kathmandu flight tickets
Emirates
Sep 23
IAD10:55 amWashington, D.C. Dulles Intl
26h 40m
1 stop
KTM11:20 pmKathmandu Tribhuvan
Sep 30
KTM12:20 amKathmandu Tribhuvan
42h 05m
1 stop
IAD8:40 amWashington, D.C. Dulles Intl
$1,163
Find similar
Emirates
Sep 20
IAD10:55 amWashington, D.C. Dulles Intl
26h 40m
1 stop
KTM11:20 pmKathmandu Tribhuvan
Oct 6
KTM7:30 amKathmandu Tribhuvan
34h 55m
1 stop
IAD8:40 amWashington, D.C. Dulles Intl
$1,213
Find similar
Emirates
Sep 21
IAD10:55 amWashington, D.C. Dulles Intl
23h 00m
1 stop
KTM7:40 pmKathmandu Tribhuvan
Oct 11
KTM8:40 pmKathmandu Tribhuvan
21h 45m
1 stop
IAD8:40 amWashington, D.C. Dulles Intl
$1,220
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 September 17, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Kathmandu that are best for you.

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Fly to

Route

Depart

Return

Price

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sun 11/2

1:30 pm-9:50 am

2 stops33h 35m

Kathmandu Tribhuvan

Mon 12/15

10:50 am-7:15 pm

2 stops43h 10m

$1,087

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sat 11/1

10:10 pm-3:40 pm

2 stops31h 45m

Kathmandu Tribhuvan

Tue 12/16

10:50 am-7:15 pm

2 stops43h 10m

$1,089

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Wed 9/24

10:05 pm-6:10 pm

2 stops34h 20m

Kathmandu Tribhuvan

Tue 10/7

1:25 pm-4:10 pm

2 stops36h 30m

$1,092

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sat 10/18

6:50 pm-3:40 pm

2 stops35h 05m

Kathmandu Tribhuvan

Thu 10/30

2:05 pm-3:45 pm

2 stops35h 25m

$1,096

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Tue 9/23

10:55 am-11:20 pm

1 stop26h 40m

Kathmandu Tribhuvan

Tue 9/30

12:20 am-8:40 am

1 stop42h 05m

$1,163

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sat 9/20

10:55 am-11:20 pm

1 stop26h 40m

Kathmandu Tribhuvan

Mon 10/6

7:30 am-8:40 am

1 stop34h 55m

$1,213

Washington, D.C.Kathmandu

DCA - KTM

DCAKTM

Washington, D.C. Reagan-National

Tue 10/7

5:20 pm-6:35 am

2 stops51h 30m

Kathmandu Tribhuvan

Sun 11/9

9:00 pm-2:50 pm

2 stops28h 35m

$1,275

Washington, D.C.Kathmandu

DCA - KTM

DCAKTM

Washington, D.C. Reagan-National

Wed 10/22

6:25 am-6:35 am

2 stops38h 25m

Kathmandu Tribhuvan

Sun 11/16

5:30 pm-2:50 pm

2 stops32h 05m

$1,346

BaltimoreKathmandu

BWI - KTM

BWIKTM

Baltimore/Washington

Wed 11/5

11:52 am-5:30 pm

2 stops42h 53m

Kathmandu Tribhuvan

Wed 12/3

6:45 pm-11:52 pm

2 stops39h 52m

$1,538

BaltimoreKathmandu

BWI - KTM

BWIKTM

Baltimore/Washington

Tue 2/10

1:04 pm-4:25 pm

2 stops40h 36m

Kathmandu Tribhuvan

Fri 4/10

10:05 am-9:32 pm

2 stops45h 12m

$1,567

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 September is another great option to travel to Kathmandu, with average flight prices from Washington, D.C. averaging around $1,332.

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

According to our data, Tuesday is the cheapest day to fly to Kathmandu from Washington, D.C.. The lowest ticket price found for a Tuesday departure recently was $1,295. 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 afternoon is the cheapest time of day to fly from Washington, D.C. to Kathmandu when you can find flight prices for as low as $1,501. Flying to Kathmandu in the afternoon 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 $1,472 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 $1,238 on momondo.

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

There is only 1 cabin class 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 5% 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 September 2025, prices for Washington, D.C. to Kathmandu flights are approximately 8% more expensive 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

Direct flights

None
There are no direct flights from Washington, D.C. to Kathmandu. There are no popular flight routes from Washington, D.C. to Kathmandu.
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  • 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 00m.

  • 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
1,251 reviews
Search Etihad Airways flights
Air IndiaPriceFrom $868Free CancellationRating
5.5
2,932 reviews
Search Air India flights
EmiratesPriceFrom $1,092Free CancellationRating
8.1
3,339 reviews
Search Emirates flights
IndiGoPriceFrom $1,149Free CancellationRating
6.9
484 reviews
Search IndiGo flights
Turkish AirlinesPriceFrom $1,187Free CancellationRating
7.3
3,965 reviews
Search Turkish Airlines flights
Qatar AirwaysPriceFrom $1,197Free CancellationRating
7.4
3,622 reviews
Search Qatar Airways flights
SWISSPriceFrom $1,324Free CancellationRating
7.6
1,737 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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