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Cheap flights from Washington, D.C. Dulles Intl Airport to Kathmandu from $442

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 3/20. 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.
Multiple Airlines Logo
2:35 pm - 9:05 amIAD-KTM
31h 45m3 stops
Multiple Airlines Logo
10:20 pm - 7:20 pmKTM-IAD
31h 45m2 stops
$1,110Multiple Airlines
Find Deal
dom., ene. 11 - dom., feb. 15
Multiple Airlines Logo
2:35 pm - 12:15 amIAD-KTM
22h 55m2 stops
Multiple Airlines Logo
7:35 am - 9:45 amKTM-IAD
35h 55m3 stops
$1,113Multiple Airlines
Find Deal
sáb., mar. 7 - sáb., abr. 4
Multiple Airlines Logo
2:35 pm - 6:35 amIAD-KTM
29h 15m3 stops
Multiple Airlines Logo
10:05 am - 10:05 amKTM-IAD
33h 45m3 stops
$1,118Multiple Airlines
Find Deal
mié., feb. 11 - lun., mar. 9
Multiple Airlines Logo
3:35 pm - 6:35 amIAD-KTM
29h 15m3 stops
Multiple Airlines Logo
7:35 am - 9:45 amKTM-IAD
35h 55m3 stops
$1,119Multiple Airlines
Find Deal
jue., mar. 26 - lun., abr. 6
Turkish Airlines Logo
1:30 pm - 11:10 amIAD-KTM
34h 55m1 stop
Turkish Airlines Logo
12:35 pm - 12:45 pmKTM-IAD
33h 55m1 stop
$1,123Turkish Airlines
Find Deal
mar., dic. 9 - lun., mar. 16
Turkish Airlines Logo
9:15 pm - 11:10 amIAD-KTM
27h 10m1 stop
Turkish Airlines Logo
12:35 pm - 11:45 amKTM-IAD
33h 55m1 stop
$1,127Turkish Airlines
Find Deal
sáb., ene. 3 - mar., mar. 3
IndiGo Logo
1:30 pm - 9:50 amIAD-KTM
33h 35m2 stops
IndiGo Logo
5:10 pm - 7:20 pmKTM-IAD
36h 55m2 stops
$1,131IndiGo
Find Deal
lun., ene. 12 - dom., feb. 22
IndiGo Logo
9:15 pm - 9:50 amIAD-KTM
25h 50m2 stops
IndiGo Logo
2:30 pm - 7:20 pmKTM-IAD
39h 35m2 stops
$1,149IndiGo
Find Deal
sáb., ene. 3 - mar., mar. 3
Emirates Logo
10:30 am - 8:20 amIAD-KTM
35h 05m1 stop
Emirates Logo
12:30 am - 8:10 amKTM-IAD
42h 25m1 stop
$1,164Emirates
Find Deal
mar., feb. 3 - lun., feb. 16
Emirates Logo
11:15 am - 11:30 pmIAD-KTM
26h 30m1 stop
Emirates Logo
1:10 am - 8:40 amKTM-IAD
41h 15m1 stop
$1,165Emirates
Find Deal
lun., mar. 9 - mié., abr. 22

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

Our best Turkish Airlines deals on Washington, D.C. Dulles Intl Airport to Kathmandu flight tickets
Turkish Airlines
Dec 9
IAD1:30 pmWashington, D.C. Dulles Intl
34h 55m
1 stop
KTM11:10 amKathmandu Tribhuvan
Mar 16
KTM12:35 pmKathmandu Tribhuvan
33h 55m
1 stop
IAD12:45 pmWashington, D.C. Dulles Intl
$1,123
Find similar
Turkish Airlines
Jan 3
IAD9:15 pmWashington, D.C. Dulles Intl
27h 10m
1 stop
KTM11:10 amKathmandu Tribhuvan
Mar 3
KTM12:35 pmKathmandu Tribhuvan
33h 55m
1 stop
IAD11:45 amWashington, D.C. Dulles Intl
$1,127
Find similar
Turkish Airlines
Jan 13
IAD9:15 pmWashington, D.C. Dulles Intl
27h 10m
1 stop
KTM11:10 amKathmandu Tribhuvan
Feb 4
KTM12:35 pmKathmandu Tribhuvan
33h 55m
1 stop
IAD11:45 amWashington, D.C. Dulles Intl
$1,132
Find similar

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
Jan 12
IAD1:30 pmWashington, D.C. Dulles Intl
33h 35m
2 stops
KTM9:50 amKathmandu Tribhuvan
Feb 22
KTM5:10 pmKathmandu Tribhuvan
36h 55m
2 stops
IAD7:20 pmWashington, D.C. Dulles Intl
$1,131
Find similar
IndiGo
Jan 3
IAD9:15 pmWashington, D.C. Dulles Intl
25h 50m
2 stops
KTM9:50 amKathmandu Tribhuvan
Mar 3
KTM2:30 pmKathmandu Tribhuvan
39h 35m
2 stops
IAD7:20 pmWashington, D.C. Dulles Intl
$1,149
Find similar
IndiGo
Feb 19
IAD1:30 pmWashington, D.C. Dulles Intl
36h 00m
2 stops
KTM12:15 pmKathmandu Tribhuvan
Feb 28
KTM2:30 pmKathmandu Tribhuvan
39h 35m
2 stops
IAD7:20 pmWashington, D.C. Dulles Intl
$1,156
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 octubre 30, 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

dom. 1/11

2:35 pm-9:05 am

3 stops31h 45m

Kathmandu Tribhuvan

dom. 2/15

10:20 pm-7:20 pm

2 stops31h 45m

$1,110

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

sáb. 3/7

2:35 pm-12:15 am

2 stops22h 55m

Kathmandu Tribhuvan

sáb. 4/4

7:35 am-9:45 am

3 stops35h 55m

$1,113

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

mié. 2/11

2:35 pm-6:35 am

3 stops29h 15m

Kathmandu Tribhuvan

lun. 3/9

10:05 am-10:05 am

3 stops33h 45m

$1,118

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

jue. 3/26

3:35 pm-6:35 am

3 stops29h 15m

Kathmandu Tribhuvan

lun. 4/6

7:35 am-9:45 am

3 stops35h 55m

$1,119

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

mar. 12/9

1:30 pm-11:10 am

1 stop34h 55m

Kathmandu Tribhuvan

lun. 3/16

12:35 pm-12:45 pm

1 stop33h 55m

$1,123

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

sáb. 1/3

9:15 pm-11:10 am

1 stop27h 10m

Kathmandu Tribhuvan

mar. 3/3

12:35 pm-11:45 am

1 stop33h 55m

$1,127

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

lun. 1/12

1:30 pm-9:50 am

2 stops33h 35m

Kathmandu Tribhuvan

dom. 2/22

5:10 pm-7:20 pm

2 stops36h 55m

$1,131

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

sáb. 1/3

9:15 pm-9:50 am

2 stops25h 50m

Kathmandu Tribhuvan

mar. 3/3

2:30 pm-7:20 pm

2 stops39h 35m

$1,149

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

mar. 2/3

10:30 am-8:20 am

1 stop35h 05m

Kathmandu Tribhuvan

lun. 2/16

12:30 am-8:10 am

1 stop42h 25m

$1,164

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

lun. 3/9

11:15 am-11:30 pm

1 stop26h 30m

Kathmandu Tribhuvan

mié. 4/22

1:10 am-8:40 am

1 stop41h 15m

$1,165

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 $1,315.

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.

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 $1,445 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.

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

You could potentially save up to 9% 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 October 2025, prices for Washington, D.C. Dulles Intl Airport to Kathmandu flights are approximately 30% 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 22h 15m.

  • 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 $862Free CancellationRating
5.5
2,940 reviews
Search Air India flights
IndiGoPriceFrom $995Free CancellationRating
6.9
490 reviews
Search IndiGo flights
EmiratesPriceFrom $1,092Free CancellationRating
8.1
3,394 reviews
Search Emirates flights
Turkish AirlinesPriceFrom $1,178Free CancellationRating
7.3
4,031 reviews
Search Turkish Airlines flights
Qatar AirwaysPriceFrom $1,213Free CancellationRating
7.4
3,661 reviews
Search Qatar Airways flights
SWISSPriceFrom $1,324Free CancellationRating
7.5
1,775 reviews
Search SWISS flights
Etihad AirwaysPriceFrom $1,403Free CancellationRating
7.4
1,284 reviews
Search Etihad Airways flights

Traveling to a place near Kathmandu?

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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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