Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Kathmandu to Washington, D.C. from $641

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 11/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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

Cheap round-trip flights

KLM Logo
3:05 pm - 3:35 pmKTM-IAD
34h 15m2 stops
KLM Logo
7:05 pm - 2:05 pmIAD-KTM
33h 15m2 stops
$1,092KLM
Find Deal
Wed, Oct 8 - Wed, Mar 11
KLM Logo
3:05 pm - 4:05 pmKTM-IAD
35h 45m2 stops
KLM Logo
5:25 pm - 2:05 pmIAD-KTM
34h 55m2 stops
$1,141KLM
Find Deal
Thu, Nov 13 - Thu, Apr 30
IndiGo Logo
2:05 pm - 8:15 pmKTM-IAD
39h 55m2 stops
IndiGo Logo
1:30 pm - 3:40 pmIAD-KTM
39h 25m2 stops
$1,155IndiGo
Find Deal
Wed, Oct 29 - Wed, Nov 5
IndiGo Logo
2:05 pm - 8:15 pmKTM-IAD
39h 55m2 stops
IndiGo Logo
9:10 pm - 9:50 amIAD-KTM
25h 55m2 stops
$1,164IndiGo
Find Deal
Thu, Oct 30 - Thu, Nov 6
Turkish Airlines Logo
7:40 am - 11:45 amKTM-IAD
37h 50m1 stop
Turkish Airlines Logo
2:30 pm - 11:10 amIAD-KTM
34h 55m1 stop
$1,341Turkish Airlines
Find Deal
Mon, Oct 20 - Thu, Mar 26
Qatar Airways Logo
6:45 pm - 3:55 pmKTM-IAD
31h 55m1 stop
Qatar Airways Logo
9:00 pm - 8:50 amIAD-KTM
26h 05m1 stop
$1,428Qatar Airways
Find Deal
Thu, Nov 13 - Thu, Apr 30
Turkish Airlines Logo
7:40 am - 11:45 amKTM-IAD
37h 50m1 stop
Turkish Airlines Logo
1:30 pm - 11:10 amIAD-KTM
34h 55m1 stop
$1,479Turkish Airlines
Find Deal
Thu, Oct 16 - Sun, Nov 23
Qatar Airways Logo
11:30 am - 8:40 amKTM-IAD
30h 55m1 stop
Qatar Airways Logo
9:00 pm - 10:15 amIAD-KTM
27h 30m1 stop
$1,501Qatar Airways
Find Deal
Thu, Oct 9 - Thu, Oct 16
Emirates Logo
12:20 am - 8:40 amKTM-IAD
42h 05m1 stop
Emirates Logo
10:55 am - 7:40 pmIAD-KTM
23h 00m1 stop
$1,542Emirates
Find Deal
Wed, Oct 8 - Thu, Oct 16
Emirates Logo
12:20 am - 8:40 amKTM-IAD
42h 05m1 stop
Emirates Logo
10:55 am - 11:20 pmIAD-KTM
26h 40m1 stop
$1,645Emirates
Find Deal
Thu, Sep 18 - Tue, Sep 23

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

Our best Emirates deals on Kathmandu to Washington, D.C. Dulles Intl Airport flight tickets
Emirates
Oct 8
KTM12:20 amKathmandu Tribhuvan
42h 05m
1 stop
IAD8:40 amWashington, D.C. Dulles Intl
Oct 16
IAD10:55 amWashington, D.C. Dulles Intl
23h 00m
1 stop
KTM7:40 pmKathmandu Tribhuvan
$1,542
Find similar
Emirates
Sep 18
KTM12:20 amKathmandu Tribhuvan
42h 05m
1 stop
IAD8:40 amWashington, D.C. Dulles Intl
Sep 23
IAD10:55 amWashington, D.C. Dulles Intl
26h 40m
1 stop
KTM11:20 pmKathmandu Tribhuvan
$1,645
Find similar
Emirates
Sep 26
KTM12:20 amKathmandu Tribhuvan
42h 05m
1 stop
IAD8:40 amWashington, D.C. Dulles Intl
Oct 29
IAD12:55 pmWashington, D.C. Dulles Intl
48h 00m
2 stops
KTM10:40 pmKathmandu Tribhuvan
$1,978
Find similar

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

Our best KLM deals on Kathmandu to Washington, D.C. Dulles Intl Airport flight tickets
KLM
Oct 8
KTM3:05 pmKathmandu Tribhuvan
34h 15m
2 stops
IAD3:35 pmWashington, D.C. Dulles Intl
Mar 11
IAD7:05 pmWashington, D.C. Dulles Intl
33h 15m
2 stops
KTM2:05 pmKathmandu Tribhuvan
$1,092
Find similar
KLM
Nov 13
KTM3:05 pmKathmandu Tribhuvan
35h 45m
2 stops
IAD4:05 pmWashington, D.C. Dulles Intl
Apr 30
IAD5:25 pmWashington, D.C. Dulles Intl
34h 55m
2 stops
KTM2:05 pmKathmandu Tribhuvan
$1,141
Find similar
KLM
Sep 27
KTM3:05 pmKathmandu Tribhuvan
37h 55m
2 stops
IAD7:15 pmWashington, D.C. Dulles Intl
Oct 29
IAD7:05 pmWashington, D.C. Dulles Intl
33h 15m
2 stops
KTM2:05 pmKathmandu Tribhuvan
$1,180
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 September 16, 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

Wed 10/8

3:05 pm-3:35 pm

2 stops34h 15m

Washington, D.C. Dulles Intl

Wed 3/11

7:05 pm-2:05 pm

2 stops33h 15m

$1,092

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Thu 11/13

3:05 pm-4:05 pm

2 stops35h 45m

Washington, D.C. Dulles Intl

Thu 4/30

5:25 pm-2:05 pm

2 stops34h 55m

$1,141

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Wed 10/29

2:05 pm-8:15 pm

2 stops39h 55m

Washington, D.C. Dulles Intl

Wed 11/5

1:30 pm-3:40 pm

2 stops39h 25m

$1,155

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Thu 10/30

2:05 pm-8:15 pm

2 stops39h 55m

Washington, D.C. Dulles Intl

Thu 11/6

9:10 pm-9:50 am

2 stops25h 55m

$1,164

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Mon 10/20

7:40 am-11:45 am

1 stop37h 50m

Washington, D.C. Dulles Intl

Thu 3/26

2:30 pm-11:10 am

1 stop34h 55m

$1,341

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Thu 11/13

6:45 pm-3:55 pm

1 stop31h 55m

Washington, D.C. Dulles Intl

Thu 4/30

9:00 pm-8:50 am

1 stop26h 05m

$1,428

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Thu 10/16

7:40 am-11:45 am

1 stop37h 50m

Washington, D.C. Dulles Intl

Sun 11/23

1:30 pm-11:10 am

1 stop34h 55m

$1,479

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Thu 10/9

11:30 am-8:40 am

1 stop30h 55m

Washington, D.C. Dulles Intl

Thu 10/16

9:00 pm-10:15 am

1 stop27h 30m

$1,501

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Wed 10/8

12:20 am-8:40 am

1 stop42h 05m

Washington, D.C. Dulles Intl

Thu 10/16

10:55 am-7:40 pm

1 stop23h 00m

$1,542

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Thu 9/18

12:20 am-8:40 am

1 stop42h 05m

Washington, D.C. Dulles Intl

Tue 9/23

10:55 am-11:20 pm

1 stop26h 40m

$1,645

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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, October 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 $1,322. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of October, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $1,396.

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

Our data shows that Tuesday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $1,401. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Kathmandu to Washington, D.C. Dulles Intl Airport for around $1,602.

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 $1,511 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 $1,322 on momondo.

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

You could potentially save up to 14% 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 September 2025, prices for Kathmandu to Washington, D.C. Dulles Intl Airport flights are approximately 16% 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

Direct flights

None
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 23h 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
6.9
484 reviews
Search IndiGo flights
Turkish AirlinesPriceFrom $1,227Free CancellationRating
7.3
3,968 reviews
Search Turkish Airlines flights
Air IndiaPriceFrom $1,239Free CancellationRating
5.5
2,930 reviews
Search Air India flights
Qatar AirwaysPriceFrom $1,327Free CancellationRating
7.4
3,624 reviews
Search Qatar Airways flights
EmiratesPriceFrom $1,509Free CancellationRating
8.1
3,334 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
Gettysburg
National Harbor
Arlington
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Manassas
Reston
Fairfax
Glen Burnie
Gaithersburg

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.

An easier way to manage your Washington, D.C. Dulles Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 10/16
Thu 10/23
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Washington, D.C.