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Cheap flights from Kathmandu to Washington, D.C. from $542

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Kathmandu to Washington, D.C. departing on 4/18. 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 Kathmandu to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:50 am - 9:45 am
KTM
-
IAD
32h 40m2 stops
Multiple Airlines Logo
3:35 pm - 9:50 am
IAD
-
KTM
32h 30m2 stops
$959Multiple Airlines
Thu, Apr 16 - Thu, Apr 30
IndiGo Logo
1:15 pm - 7:20 pm
KTM
-
IAD
40h 50m2 stops
IndiGo Logo
1:30 pm - 9:50 am
IAD
-
KTM
33h 35m2 stops
$961IndiGo
Sun, Jan 25 - Sun, Feb 1
Multiple Airlines Logo
10:05 am - 9:05 am
KTM
-
IAD
33h 45m2 stops
Multiple Airlines Logo
2:35 pm - 12:15 am
IAD
-
KTM
22h 55m2 stops
$966Multiple Airlines
Mon, Feb 9 - Mon, Feb 16
IndiGo Logo
1:15 pm - 7:20 pm
KTM
-
IAD
40h 50m2 stops
IndiGo Logo
1:30 pm - 9:50 am
IAD
-
KTM
33h 35m2 stops
$1,018IndiGo
Mon, Feb 9 - Mon, Feb 16
Multiple Airlines Logo
10:05 am - 9:05 am
KTM
-
IAD
33h 45m2 stops
Multiple Airlines Logo
2:35 pm - 12:40 pm
IAD
-
KTM
35h 20m3 stops
$1,021Multiple Airlines
Mon, Feb 9 - Mon, Feb 16
Multiple Airlines Logo
2:55 pm - 3:55 pm
KTM
-
IAD
35h 45m3 stops
Multiple Airlines Logo
3:35 pm - 11:00 pm
IAD
-
KTM
21h 40m2 stops
$1,101Multiple Airlines
Thu, Jan 22 - Fri, Apr 24
Multiple Airlines Logo
11:15 pm - 8:10 am
KTM
-
IAD
43h 40m1 stop
Multiple Airlines Logo
1:30 pm - 9:50 am
IAD
-
KTM
33h 35m2 stops
$1,115Multiple Airlines
Sun, Jan 25 - Sun, Feb 1
Multiple Airlines Logo
10:50 am - 9:05 am
KTM
-
IAD
33h 00m3 stops
Multiple Airlines Logo
2:35 pm - 12:40 pm
IAD
-
KTM
35h 20m3 stops
$1,128Multiple Airlines
Mon, Feb 9 - Mon, Feb 16
Multiple Airlines Logo
9:05 pm - 7:20 pm
KTM
-
IAD
33h 00m2 stops
Multiple Airlines Logo
9:45 pm - 9:50 am
IAD
-
KTM
26h 20m2 stops
$1,168Multiple Airlines
Thu, Jan 22 - Fri, Apr 24
Multiple Airlines Logo
11:15 pm - 8:10 am
KTM
-
IAD
43h 40m1 stop
Multiple Airlines Logo
1:30 pm - 9:50 am
IAD
-
KTM
33h 35m2 stops
$1,194Multiple Airlines
Mon, Feb 9 - Mon, Feb 16

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

Our best IndiGo deals on Kathmandu to Washington, D.C. Dulles Intl Airport flight tickets
IndiGo
Jan 25
KTM1:15 pmKathmandu Tribhuvan
40h 50m
2 stops
IAD7:20 pmWashington, D.C. Dulles Intl
Feb 1
IAD1:30 pmWashington, D.C. Dulles Intl
33h 35m
2 stops
KTM9:50 amKathmandu Tribhuvan
$961
Find similar
IndiGo
Feb 9
KTM1:15 pmKathmandu Tribhuvan
40h 50m
2 stops
IAD7:20 pmWashington, D.C. Dulles Intl
Feb 16
IAD1:30 pmWashington, D.C. Dulles Intl
33h 35m
2 stops
KTM9:50 amKathmandu Tribhuvan
$1,018
Find similar

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

Our best Qatar Airways deals on Kathmandu to Washington, D.C. Dulles Intl Airport flight tickets
Qatar Airways
Jan 22
KTM5:40 pmKathmandu Tribhuvan
25h 25m
1 stop
IAD8:20 amWashington, D.C. Dulles Intl
Apr 24
IAD11:00 amWashington, D.C. Dulles Intl
20h 00m
1 stop
KTM4:45 pmKathmandu Tribhuvan
$1,197
Find similar
Qatar Airways
Jan 25
KTM7:05 pmKathmandu Tribhuvan
31h 35m
1 stop
IAD3:55 pmWashington, D.C. Dulles Intl
Feb 1
IAD10:40 amWashington, D.C. Dulles Intl
20h 25m
1 stop
KTM5:50 pmKathmandu Tribhuvan
$1,213
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Kathmandu to Washington, D.C. Dulles Intl Airport 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 27, 2025.
Use the filters below to find and compare flights from Kathmandu to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Thu 4/16

10:50 am-9:45 am

2 stops32h 40m

Washington, D.C. Dulles Intl

Thu 4/30

3:35 pm-9:50 am

2 stops32h 30m

$959

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Sun 1/25

1:15 pm-7:20 pm

2 stops40h 50m

Washington, D.C. Dulles Intl

Sun 2/1

1:30 pm-9:50 am

2 stops33h 35m

$961

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Mon 2/9

10:05 am-9:05 am

2 stops33h 45m

Washington, D.C. Dulles Intl

Mon 2/16

2:35 pm-12:15 am

2 stops22h 55m

$966

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Mon 2/9

1:15 pm-7:20 pm

2 stops40h 50m

Washington, D.C. Dulles Intl

Mon 2/16

1:30 pm-9:50 am

2 stops33h 35m

$1,018

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Mon 2/9

10:05 am-9:05 am

2 stops33h 45m

Washington, D.C. Dulles Intl

Mon 2/16

2:35 pm-12:40 pm

3 stops35h 20m

$1,021

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Thu 1/22

2:55 pm-3:55 pm

3 stops35h 45m

Washington, D.C. Dulles Intl

Fri 4/24

3:35 pm-11:00 pm

2 stops21h 40m

$1,101

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Sun 1/25

11:15 pm-8:10 am

1 stop43h 40m

Washington, D.C. Dulles Intl

Sun 2/1

1:30 pm-9:50 am

2 stops33h 35m

$1,115

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Mon 2/9

10:50 am-9:05 am

3 stops33h 00m

Washington, D.C. Dulles Intl

Mon 2/16

2:35 pm-12:40 pm

3 stops35h 20m

$1,128

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Thu 1/22

9:05 pm-7:20 pm

2 stops33h 00m

Washington, D.C. Dulles Intl

Fri 4/24

9:45 pm-9:50 am

2 stops26h 20m

$1,168

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Mon 2/9

11:15 pm-8:10 am

1 stop43h 40m

Washington, D.C. Dulles Intl

Mon 2/16

1:30 pm-9:50 am

2 stops33h 35m

$1,194

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Kathmandu to Washington, D.C. Dulles Intl Airport

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 Washington, D.C. Dulles Intl Airport?

In general, May is the cheapest month to fly from Kathmandu to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,399. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of May, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $1,453.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Kathmandu at noon is the least expensive time of day to depart. momondo users have found prices as low as $1,269 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $1,557 on average. Flights to Washington, D.C. Dulles Intl Airport from Kathmandu in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Kathmandu when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $1,538 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Kathmandu for as low as $1,329 on momondo.

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

You could potentially save up to 35% on your flight if you consider stops on a Kathmandu to Washington, D.C. Dulles Intl Airport flight.

How have Kathmandu to Washington, D.C. Dulles Intl Airport flight prices changed over time?

As of December 2025, prices for Kathmandu to Washington, D.C. Dulles Intl Airport flights are approximately 27% cheaper when compared to flights at the same time last year.

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

Are you open to changing your travel dates? Check out the ideal times to fly from Kathmandu to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Kathmandu to Washington, D.C. Dulles Intl Airport (KTM to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Kathmandu to Washington, D.C. Dulles Intl Airport

Fastest flight time

29h 00m

Direct flights

None
The fastest flight from Kathmandu to Washington, D.C. Dulles Intl Airport takes 29h 00m
There are no direct flights from Kathmandu to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from Kathmandu to Washington, D.C. Dulles Intl Airport.
Search flight deals

  • How far is Kathmandu Tribhuvan to Washington, D.C. Dulles Intl by plane?

    Kathmandu Tribhuvan and Washington, D.C. Dulles Intl are 7693.1 mi apart from one another. A reasonable flight in good conditions will take 29h 00m.

  • When did momondo last update prices for flights from Kathmandu Tribhuvan Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Kathmandu Tribhuvan Airport to Washington, D.C. Dulles Intl Airport are updated daily.

  • How many operators does momondo search for flights from Kathmandu Tribhuvan Airport to Washington, D.C. Dulles Intl Airport?

  • How old do you have to be to fly from Kathmandu Tribhuvan Airport to Washington, D.C. Dulles Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Kathmandu Tribhuvan Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl 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 Washington, D.C. Dulles Intl 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 Kathmandu to Washington, D.C. Dulles Intl Airport?

Best airlines flying from Kathmandu to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Kathmandu to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
IndiGoPriceFrom $947Free CancellationRating
6.8
512 reviews
Search IndiGo flights
Air IndiaPriceFrom $1,150Free CancellationRating
5.5
2,957 reviews
Search Air India flights
Turkish AirlinesPriceFrom $1,238Free CancellationRating
7.3
4,117 reviews
Search Turkish Airlines flights
Qatar AirwaysPriceFrom $1,322Free CancellationRating
7.4
3,692 reviews
Search Qatar Airways flights
EmiratesPriceFrom $1,508Free CancellationRating
8.1
3,444 reviews
Search Emirates flights

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Winchester
Waldorf
Woodbridge
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Harpers Ferry
Gaithersburg
Reston
Manassas
Sterling
Fairfax

Why use momondo?

Why should I use momondo to find a flight deal from Kathmandu to Washington, D.C.?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Kathmandu.

Can I find flights from Kathmandu to Washington, D.C. with flexible booking policies on momondo?

Yes. All flights to Washington, D.C. from Kathmandu on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Kathmandu to Washington, D.C.?

Once you have performed a search for Kathmandu to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Kathmandu to Washington, D.C. right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Kathmandu to Washington, D.C. 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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