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Cheap flights from Washington, D.C. Dulles Intl Airport to Kathmandu from $359

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 2/4. 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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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.
IndiGo Logo
9:15 pm - 9:50 am
IAD
-
KTM
25h 50m2 stops
IndiGo Logo
10:50 am - 7:20 pm
KTM
-
IAD
43h 15m2 stops
$1,093IndiGo
Tue, Feb 3 - Tue, Mar 3
Multiple Airlines Logo
2:35 pm - 9:05 am
IAD
-
KTM
31h 45m1 stop
Multiple Airlines Logo
2:45 pm - 10:05 am
KTM
-
IAD
29h 05m2 stops
$1,097Multiple Airlines
Thu, Feb 12 - Wed, Mar 18
Multiple Airlines Logo
2:35 pm - 9:05 am
IAD
-
KTM
31h 45m3 stops
Multiple Airlines Logo
10:05 am - 9:05 am
KTM
-
IAD
33h 45m3 stops
$1,100Multiple Airlines
Mon, Jan 26 - Tue, Feb 17
IndiGo Logo
1:30 pm - 9:50 am
IAD
-
KTM
33h 35m2 stops
IndiGo Logo
1:15 pm - 8:20 pm
KTM
-
IAD
40h 50m2 stops
$1,116IndiGo
Fri, Jan 23 - Sat, Mar 21
Multiple Airlines Logo
2:35 pm - 9:05 am
IAD
-
KTM
31h 45m1 stop
Multiple Airlines Logo
1:25 pm - 9:45 am
KTM
-
IAD
54h 05m2 stops
$1,120Multiple Airlines
Sat, Mar 7 - Mon, Apr 6
IndiGo Logo
9:15 pm - 4:10 pm
IAD
-
KTM
32h 10m2 stops
IndiGo Logo
5:10 pm - 8:20 pm
KTM
-
IAD
36h 55m2 stops
$1,121IndiGo
Wed, Jan 28 - Tue, Mar 24
Multiple Airlines Logo
2:35 pm - 9:05 am
IAD
-
KTM
31h 45m1 stop
Multiple Airlines Logo
6:30 am - 9:45 am
KTM
-
IAD
37h 00m2 stops
$1,124Multiple Airlines
Thu, Feb 12 - Thu, May 28
Multiple Airlines Logo
2:35 pm - 9:05 am
IAD
-
KTM
31h 45m1 stop
Multiple Airlines Logo
1:45 pm - 10:05 am
KTM
-
IAD
54h 05m2 stops
$1,125Multiple Airlines
Thu, Feb 12 - Sat, Mar 21
Multiple Airlines Logo
2:35 pm - 9:05 am
IAD
-
KTM
31h 45m1 stop
Multiple Airlines Logo
1:45 pm - 10:05 am
KTM
-
IAD
54h 05m2 stops
$1,130Multiple Airlines
Sat, Feb 21 - Sat, Mar 21
Multiple Airlines Logo
2:35 pm - 9:05 am
IAD
-
KTM
31h 45m1 stop
Multiple Airlines Logo
10:50 am - 7:20 pm
KTM
-
IAD
43h 15m2 stops
$1,131Multiple Airlines
Thu, Jan 29 - Thu, Feb 5

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

Our best IndiGo deals on Washington, D.C. Dulles Intl Airport to Kathmandu flight tickets
IndiGo
Feb 3
IAD1:30 pmWashington, D.C. Dulles Intl
33h 35m
2 stops
KTM9:50 amKathmandu Tribhuvan
Mar 5
KTM10:50 amKathmandu Tribhuvan
43h 15m
2 stops
IAD7:20 pmWashington, D.C. Dulles Intl
$1,093
Find similar
IndiGo
Jan 23
IAD1:30 pmWashington, D.C. Dulles Intl
33h 35m
2 stops
KTM9:50 amKathmandu Tribhuvan
Mar 21
KTM1:15 pmKathmandu Tribhuvan
40h 50m
2 stops
IAD8:20 pmWashington, D.C. Dulles Intl
$1,116
Find similar
IndiGo
Jan 28
IAD9:15 pmWashington, D.C. Dulles Intl
32h 10m
2 stops
KTM4:10 pmKathmandu Tribhuvan
Mar 24
KTM5:10 pmKathmandu Tribhuvan
36h 55m
2 stops
IAD8:20 pmWashington, D.C. Dulles Intl
$1,121
Find similar

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

Our best Etihad Airways deals on Washington, D.C. Dulles Intl Airport to Kathmandu flight tickets
Etihad Airways
Jan 14
IAD2:35 pmWashington, D.C. Dulles Intl
31h 45m
1 stop
KTM9:05 amKathmandu Tribhuvan
Jan 28
KTM9:50 amKathmandu Tribhuvan
34h 00m
1 stop
IAD9:05 amWashington, D.C. Dulles Intl
$1,147
Find similar
Etihad Airways
Jan 23
IAD2:35 pmWashington, D.C. Dulles Intl
31h 45m
1 stop
KTM9:05 amKathmandu Tribhuvan
Jan 29
KTM9:50 amKathmandu Tribhuvan
34h 00m
1 stop
IAD9:05 amWashington, D.C. Dulles Intl
$1,172
Find similar
Etihad Airways
Feb 12
IAD2:35 pmWashington, D.C. Dulles Intl
31h 45m
1 stop
KTM9:05 amKathmandu Tribhuvan
Mar 17
KTM9:50 amKathmandu Tribhuvan
34h 00m
1 stop
IAD10:05 amWashington, D.C. Dulles Intl
$1,175
Find similar

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 December 31, 2025.
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

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Tue 2/3

9:15 pm-9:50 am

2 stops25h 50m

Kathmandu Tribhuvan

Tue 3/3

10:50 am-7:20 pm

2 stops43h 15m

$1,093

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Thu 2/12

2:35 pm-9:05 am

1 stop31h 45m

Kathmandu Tribhuvan

Wed 3/18

2:45 pm-10:05 am

2 stops29h 05m

$1,097

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Mon 1/26

2:35 pm-9:05 am

3 stops31h 45m

Kathmandu Tribhuvan

Tue 2/17

10:05 am-9:05 am

3 stops33h 45m

$1,100

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Fri 1/23

1:30 pm-9:50 am

2 stops33h 35m

Kathmandu Tribhuvan

Sat 3/21

1:15 pm-8:20 pm

2 stops40h 50m

$1,116

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sat 3/7

2:35 pm-9:05 am

1 stop31h 45m

Kathmandu Tribhuvan

Mon 4/6

1:25 pm-9:45 am

2 stops54h 05m

$1,120

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Wed 1/28

9:15 pm-4:10 pm

2 stops32h 10m

Kathmandu Tribhuvan

Tue 3/24

5:10 pm-8:20 pm

2 stops36h 55m

$1,121

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Thu 2/12

2:35 pm-9:05 am

1 stop31h 45m

Kathmandu Tribhuvan

Thu 5/28

6:30 am-9:45 am

2 stops37h 00m

$1,124

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Thu 2/12

2:35 pm-9:05 am

1 stop31h 45m

Kathmandu Tribhuvan

Sat 3/21

1:45 pm-10:05 am

2 stops54h 05m

$1,125

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sat 2/21

2:35 pm-9:05 am

1 stop31h 45m

Kathmandu Tribhuvan

Sat 3/21

1:45 pm-10:05 am

2 stops54h 05m

$1,130

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Thu 1/29

2:35 pm-9:05 am

1 stop31h 45m

Kathmandu Tribhuvan

Thu 2/5

10:50 am-7:20 pm

2 stops43h 15m

$1,131

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 September is another great option to travel to Kathmandu, with average flight prices from Washington, D.C. Dulles Intl Airport averaging around $1,329.

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 $1,441 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 $1,223 on momondo.

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

You could potentially save up to 32% 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 December 2025, prices for Washington, D.C. Dulles Intl Airport to Kathmandu flights are approximately 71% 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

22h 35m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Kathmandu takes 22h 35m
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 22h 35m.

  • 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 $856Free CancellationRating
5.5
2,966 reviews
Search Air India flights
IndiGoPriceFrom $987Free CancellationRating
6.8
512 reviews
Search IndiGo flights
EmiratesPriceFrom $1,092Free CancellationRating
8.1
3,448 reviews
Search Emirates flights
Turkish AirlinesPriceFrom $1,155Free CancellationRating
7.3
4,133 reviews
Search Turkish Airlines flights
Qatar AirwaysPriceFrom $1,238Free CancellationRating
7.4
3,700 reviews
Search Qatar Airways flights
Etihad AirwaysPriceFrom $1,403Free CancellationRating
7.3
1,348 reviews
Search Etihad Airways flights
SWISSPriceFrom $1,611Free CancellationRating
7.5
1,830 reviews
Search SWISS flights

Traveling to a place near Kathmandu?

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

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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?

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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
IndiGo
Turkish Airlines
Etihad Airways
SWISS