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Cheap flights from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport 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. Dulles Intl Airport 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
IndiGo Logo
1:30 pm - 9:50 amIAD-KTM
33h 35m2 stops
IndiGo Logo
10:50 am - 7:15 pmKTM-IAD
43h 10m2 stops
$1,109IndiGo
Find Deal
Fri, Nov 21 - Thu, Jan 22
IndiGo Logo
1:30 pm - 12:55 pmIAD-KTM
36h 40m2 stops
IndiGo Logo
10:50 am - 7:15 pmKTM-IAD
43h 10m2 stops
$1,111IndiGo
Find Deal
Fri, Nov 28 - Mon, Dec 15
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
Emirates Logo
10:55 am - 7:40 pmIAD-KTM
23h 00m1 stop
Emirates Logo
8:40 pm - 8:40 amKTM-IAD
21h 45m1 stop
$1,220Emirates
Find Deal
Sun, Sep 21 - Sat, Oct 11
Emirates Logo
10:55 am - 6:25 pmIAD-KTM
21h 45m1 stop
Emirates Logo
3:35 pm - 8:40 amKTM-IAD
26h 50m1 stop
$1,269Emirates
Find Deal
Mon, Oct 6 - Mon, Oct 13

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
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. Dulles Intl Airport to Kathmandu

Our best Emirates deals on Washington, D.C. Dulles Intl Airport 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. 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 September 17, 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

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

Fri 11/21

1:30 pm-9:50 am

2 stops33h 35m

Kathmandu Tribhuvan

Thu 1/22

10:50 am-7:15 pm

2 stops43h 10m

$1,109

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Fri 11/28

1:30 pm-12:55 pm

2 stops36h 40m

Kathmandu Tribhuvan

Mon 12/15

10:50 am-7:15 pm

2 stops43h 10m

$1,111

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

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sun 9/21

10:55 am-7:40 pm

1 stop23h 00m

Kathmandu Tribhuvan

Sat 10/11

8:40 pm-8:40 am

1 stop21h 45m

$1,220

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Mon 10/6

10:55 am-6:25 pm

1 stop21h 45m

Kathmandu Tribhuvan

Mon 10/13

3:35 pm-8:40 am

1 stop26h 50m

$1,269

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 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 $1,319.

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. Dulles Intl Airport. 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. Dulles Intl Airport 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. Dulles Intl Airport 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. Dulles Intl to Kathmandu Tribhuvan flight route?

Fly from Washington, D.C. Dulles Intl to Kathmandu Tribhuvan for the best Washington, D.C. Dulles Intl - 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. Dulles Intl Airport 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. Dulles Intl Airport for as low as $1,238 on momondo.

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

There is only 1 cabin class available to choose from on Washington, D.C. Dulles Intl 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. Dulles Intl Airport to Kathmandu flights?

You could potentially save up to 5% 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 September 2025, prices for Washington, D.C. Dulles Intl Airport to Kathmandu flights are approximately 19% cheaper 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

Direct flights

None
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 21h 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
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
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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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