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Cheap flights from Washington, D.C. Dulles Intl Airport to Kathmandu from $459

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. Dulles Intl Airport to Kathmandu departing on 4/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
2:05 pm - 7:50 pm
IAD
-
KTM
44h 00m
2 stops
Multiple Airlines Logo
10:50 am - 9:45 am
KTM
-
IAD
32h 40m
2 stops
$1,009Multiple Airlines
Mon, Apr 13 - Sun, May 3
Multiple Airlines Logo
2:05 pm - 7:50 pm
IAD
-
KTM
44h 00m
2 stops
Multiple Airlines Logo
10:50 am - 9:45 am
KTM
-
IAD
32h 40m
2 stops
$1,015Multiple Airlines
Sun, Apr 12 - Sun, Apr 26
Multiple Airlines Logo
2:05 pm - 6:10 pm
IAD
-
KTM
42h 20m
2 stops
Multiple Airlines Logo
8:10 am - 9:45 am
KTM
-
IAD
35h 20m
2 stops
$1,016Multiple Airlines
Sat, Apr 11 - Tue, Apr 21
Multiple Airlines Logo
9:00 pm - 1:05 pm
IAD
-
KTM
30h 20m
2 stops
Multiple Airlines Logo
4:40 pm - 3:40 pm
KTM
-
IAD
32h 45m
2 stops
$1,017Multiple Airlines
Tue, Sep 1 - Wed, Sep 30
Multiple Airlines Logo
9:00 pm - 1:05 pm
IAD
-
KTM
30h 20m
2 stops
Multiple Airlines Logo
4:40 pm - 3:40 pm
KTM
-
IAD
32h 45m
2 stops
$1,023Multiple Airlines
Mon, Sep 14 - Fri, Oct 2
Multiple Airlines Logo
3:10 pm - 9:50 am
IAD
-
KTM
32h 55m
2 stops
Multiple Airlines Logo
10:50 am - 9:45 am
KTM
-
IAD
32h 40m
2 stops
$1,027Multiple Airlines
Sat, Apr 25 - Mon, Jun 1
Multiple Airlines Logo
11:05 am - 1:05 pm
IAD
-
KTM
40h 15m
2 stops
Multiple Airlines Logo
4:40 pm - 3:40 pm
KTM
-
IAD
32h 45m
2 stops
$1,054Multiple Airlines
Fri, Sep 4 - Fri, Oct 2
Multiple Airlines Logo
11:00 am - 7:50 pm
IAD
-
KTM
23h 05m
2 stops
Multiple Airlines Logo
4:40 pm - 8:40 am
KTM
-
IAD
25h 45m
2 stops
$1,064Multiple Airlines
Mon, Apr 27 - Mon, May 4
Multiple Airlines Logo
11:00 am - 8:10 pm
IAD
-
KTM
23h 25m
2 stops
Multiple Airlines Logo
1:25 pm - 8:40 am
KTM
-
IAD
29h 00m
2 stops
$1,081Multiple Airlines
Wed, May 6 - Thu, May 28
Multiple Airlines Logo
11:00 am - 7:50 pm
IAD
-
KTM
23h 05m
2 stops
Multiple Airlines Logo
10:50 am - 8:40 am
KTM
-
IAD
31h 35m
2 stops
$1,082Multiple Airlines
Wed, Apr 29 - Thu, May 28

Qatar Airways flights from Washington, D.C. Dulles Intl Airport to Kathmandu

Our best Qatar Airways deals on Washington, D.C. Dulles Intl Airport to Kathmandu flight tickets
Qatar Airways
Apr 6
IAD9:00 pmWashington, D.C. Dulles Intl
26h 30m
1 stop
KTM9:15 amKathmandu Tribhuvan
May 4
KTM6:15 pmKathmandu Tribhuvan
24h 10m
1 stop
IAD8:40 amWashington, D.C. Dulles Intl
$1,348
Qatar Airways
Apr 2
IAD9:00 pmWashington, D.C. Dulles Intl
26h 30m
1 stop
KTM9:15 amKathmandu Tribhuvan
May 15
KTM6:15 pmKathmandu Tribhuvan
24h 10m
1 stop
IAD8:40 amWashington, D.C. Dulles Intl
$1,370
Qatar Airways
Apr 2
IAD9:00 pmWashington, D.C. Dulles Intl
26h 30m
1 stop
KTM9:15 amKathmandu Tribhuvan
May 11
KTM6:15 pmKathmandu Tribhuvan
24h 10m
1 stop
IAD8:40 amWashington, D.C. Dulles Intl
$1,377

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

Our best Emirates deals on Washington, D.C. Dulles Intl Airport to Kathmandu flight tickets
Emirates
Apr 11
IAD10:55 amWashington, D.C. Dulles Intl
41h 55m
1 stop
KTM2:35 pmKathmandu Tribhuvan
May 1
KTM7:55 pmKathmandu Tribhuvan
22h 30m
1 stop
IAD8:40 amWashington, D.C. Dulles Intl
$1,404
Emirates
Apr 4
IAD10:55 amWashington, D.C. Dulles Intl
41h 55m
1 stop
KTM2:35 pmKathmandu Tribhuvan
May 2
KTM7:55 pmKathmandu Tribhuvan
22h 30m
1 stop
IAD8:40 amWashington, D.C. Dulles Intl
$1,460

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport 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 March 29, 2026.
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 - KTM

IADKTM

Washington, D.C. Dulles Intl

Mon 4/13

2:05 pm-7:50 pm

2 stops44h 00m

Kathmandu Tribhuvan

Sun 5/3

10:50 am-9:45 am

2 stops32h 40m

$1,009

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sun 4/12

2:05 pm-7:50 pm

2 stops44h 00m

Kathmandu Tribhuvan

Sun 4/26

10:50 am-9:45 am

2 stops32h 40m

$1,015

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sat 4/11

2:05 pm-6:10 pm

2 stops42h 20m

Kathmandu Tribhuvan

Tue 4/21

8:10 am-9:45 am

2 stops35h 20m

$1,016

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Tue 9/1

9:00 pm-1:05 pm

2 stops30h 20m

Kathmandu Tribhuvan

Wed 9/30

4:40 pm-3:40 pm

2 stops32h 45m

$1,017

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Mon 9/14

9:00 pm-1:05 pm

2 stops30h 20m

Kathmandu Tribhuvan

Fri 10/2

4:40 pm-3:40 pm

2 stops32h 45m

$1,023

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sat 4/25

3:10 pm-9:50 am

2 stops32h 55m

Kathmandu Tribhuvan

Mon 6/1

10:50 am-9:45 am

2 stops32h 40m

$1,027

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Fri 9/4

11:05 am-1:05 pm

2 stops40h 15m

Kathmandu Tribhuvan

Fri 10/2

4:40 pm-3:40 pm

2 stops32h 45m

$1,054
Quickest round-trip

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Mon 4/27

11:00 am-7:50 pm

2 stops23h 05m

Kathmandu Tribhuvan

Mon 5/4

4:40 pm-8:40 am

2 stops25h 45m

$1,064

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Wed 5/6

11:00 am-8:10 pm

2 stops23h 25m

Kathmandu Tribhuvan

Thu 5/28

1:25 pm-8:40 am

2 stops29h 00m

$1,081

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Wed 4/29

11:00 am-7:50 pm

2 stops23h 05m

Kathmandu Tribhuvan

Thu 5/28

10:50 am-8:40 am

2 stops31h 35m

$1,082

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. 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

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?

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 $1,266.

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. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Kathmandu for around $1,422 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 $1,256 on momondo.

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

You could potentially save up to 12% 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 March 2026, prices for Washington, D.C. Dulles Intl Airport to Kathmandu flights are approximately 51% 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

Fastest flight time

23h 00m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Kathmandu takes 23h 00m
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.
Search flight deals

  • 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 23h 00m.

  • 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?

  • 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?

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
Air IndiaPriceFrom $826Free CancellationRating
5.5
2,975 reviews
Search Air India flights
IndiGoPriceFrom $935Free CancellationRating
6.8
545 reviews
Search IndiGo flights
Turkish AirlinesPriceFrom $1,071Free CancellationRating
7.4
4,287 reviews
Search Turkish Airlines flights
EmiratesPriceFrom $1,092Free CancellationRating
8.1
3,549 reviews
Search Emirates flights
Etihad AirwaysPriceFrom $1,242Free CancellationRating
7.3
1,431 reviews
Search Etihad Airways flights
Qatar AirwaysPriceFrom $1,248Free CancellationRating
7.4
3,730 reviews
Search Qatar Airways flights
SWISSPriceFrom $1,324Free CancellationRating
7.5
1,906 reviews
Search SWISS flights

Traveling to a place near Kathmandu?

Book flights to Kathmandu if you plan to visit one of these locations
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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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Fly your favorite airline to Kathmandu

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Qatar Airways
Air India
Emirates
Turkish Airlines
IndiGo
SWISS
Etihad Airways