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Cheap flights from Kathmandu to Washington, D.C. from $668

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 5/21. 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
1:25 pm - 8:40 am
KTM
-
IAD
29h 00m
2 stops
Multiple Airlines Logo
10:55 am - 6:10 pm
IAD
-
KTM
45h 30m
2 stops
$1,145Multiple Airlines
Thu, May 7 - Wed, Jun 10
Multiple Airlines Logo
8:10 am - 8:40 am
KTM
-
IAD
34h 15m
2 stops
Multiple Airlines Logo
10:55 am - 12:50 pm
IAD
-
KTM
40h 10m
2 stops
$1,147Multiple Airlines
Tue, May 19 - Tue, May 26
Multiple Airlines Logo
1:25 pm - 8:40 am
KTM
-
IAD
29h 00m
2 stops
Multiple Airlines Logo
10:55 am - 6:10 pm
IAD
-
KTM
45h 30m
2 stops
$1,172Multiple Airlines
Thu, May 21 - Sun, May 24
Multiple Airlines Logo
8:10 am - 8:40 am
KTM
-
IAD
34h 15m
2 stops
Multiple Airlines Logo
10:55 am - 9:45 am
IAD
-
KTM
37h 05m
1 stop
$1,184Multiple Airlines
Thu, May 21 - Sun, May 24
Multiple Airlines Logo
1:25 pm - 8:40 am
KTM
-
IAD
53h 00m
2 stops
Multiple Airlines Logo
10:55 am - 9:45 am
IAD
-
KTM
37h 05m
1 stop
$1,187Multiple Airlines
Tue, May 19 - Tue, May 26
Multiple Airlines Logo
1:25 pm - 8:40 am
KTM
-
IAD
29h 00m
2 stops
Multiple Airlines Logo
10:55 am - 6:10 pm
IAD
-
KTM
45h 30m
2 stops
$1,206Multiple Airlines
Sun, Jun 7 - Sun, Jun 14
Multiple Airlines Logo
10:50 am - 8:40 am
KTM
-
IAD
31h 35m
2 stops
Multiple Airlines Logo
10:55 am - 7:50 pm
IAD
-
KTM
23h 10m
2 stops
$1,207Multiple Airlines
Tue, May 12 - Wed, May 27
Multiple Airlines Logo
8:10 am - 8:40 am
KTM
-
IAD
34h 15m
2 stops
Multiple Airlines Logo
10:55 am - 9:45 am
IAD
-
KTM
37h 05m
1 stop
$1,218Multiple Airlines
Tue, May 12 - Thu, May 28
Multiple Airlines Logo
10:50 am - 8:40 am
KTM
-
IAD
31h 35m
2 stops
Multiple Airlines Logo
10:55 am - 7:50 pm
IAD
-
KTM
23h 10m
2 stops
$1,224Multiple Airlines
Thu, Jul 23 - Mon, Aug 31
Multiple Airlines Logo
1:25 pm - 8:40 am
KTM
-
IAD
29h 00m
2 stops
Multiple Airlines Logo
10:55 am - 6:10 pm
IAD
-
KTM
45h 30m
2 stops
$1,242Multiple Airlines
Sat, Jun 6 - Sat, Jun 13

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

Our best Air China deals on Kathmandu to Washington, D.C. Dulles Intl Airport flight tickets
Air China
Sep 20
KTM11:55 amKathmandu Tribhuvan
65h 20m
2 stops
IAD7:30 pmWashington, D.C. Dulles Intl
Oct 20
IAD11:00 pmWashington, D.C. Dulles Intl
50h 10m
2 stops
KTM10:55 amKathmandu Tribhuvan
$1,305
Air China
Sep 17
KTM11:55 amKathmandu Tribhuvan
41h 20m
2 stops
IAD7:30 pmWashington, D.C. Dulles Intl
Oct 20
IAD11:00 pmWashington, D.C. Dulles Intl
50h 10m
2 stops
KTM10:55 amKathmandu Tribhuvan
$1,339
Air China
Apr 30
KTM11:55 amKathmandu Tribhuvan
41h 20m
2 stops
IAD7:30 pmWashington, D.C. Dulles Intl
Oct 23
IAD11:00 pmWashington, D.C. Dulles Intl
50h 50m
2 stops
KTM11:35 amKathmandu Tribhuvan
$2,076

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
May 12
KTM7:10 pmKathmandu Tribhuvan
32h 55m
1 stop
IAD6:20 pmWashington, D.C. Dulles Intl
May 27
IAD9:00 pmWashington, D.C. Dulles Intl
25h 55m
1 stop
KTM8:40 amKathmandu Tribhuvan
$1,329
Qatar Airways
May 14
KTM7:10 pmKathmandu Tribhuvan
32h 55m
1 stop
IAD6:20 pmWashington, D.C. Dulles Intl
Oct 22
IAD9:00 pmWashington, D.C. Dulles Intl
27h 05m
1 stop
KTM9:50 amKathmandu Tribhuvan
$1,334
Qatar Airways
May 21
KTM7:10 pmKathmandu Tribhuvan
32h 55m
1 stop
IAD6:20 pmWashington, D.C. Dulles Intl
Oct 20
IAD9:00 pmWashington, D.C. Dulles Intl
27h 05m
1 stop
KTM9:50 amKathmandu Tribhuvan
$1,335

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 April 24, 2026.
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

Cheapest round-trip

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Thu 5/7

1:25 pm-8:40 am

2 stops29h 00m

Washington, D.C. Dulles Intl

Wed 6/10

10:55 am-6:10 pm

2 stops45h 30m

$1,145

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Tue 5/19

8:10 am-8:40 am

2 stops34h 15m

Washington, D.C. Dulles Intl

Tue 5/26

10:55 am-12:50 pm

2 stops40h 10m

$1,147

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Thu 5/21

1:25 pm-8:40 am

2 stops29h 00m

Washington, D.C. Dulles Intl

Sun 5/24

10:55 am-6:10 pm

2 stops45h 30m

$1,172

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Thu 5/21

8:10 am-8:40 am

2 stops34h 15m

Washington, D.C. Dulles Intl

Sun 5/24

10:55 am-9:45 am

1 stop37h 05m

$1,184

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Tue 5/19

1:25 pm-8:40 am

2 stops53h 00m

Washington, D.C. Dulles Intl

Tue 5/26

10:55 am-9:45 am

1 stop37h 05m

$1,187

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Sun 6/7

1:25 pm-8:40 am

2 stops29h 00m

Washington, D.C. Dulles Intl

Sun 6/14

10:55 am-6:10 pm

2 stops45h 30m

$1,206
Quickest round-trip

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Tue 5/12

10:50 am-8:40 am

2 stops31h 35m

Washington, D.C. Dulles Intl

Wed 5/27

10:55 am-7:50 pm

2 stops23h 10m

$1,207

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Tue 5/12

8:10 am-8:40 am

2 stops34h 15m

Washington, D.C. Dulles Intl

Thu 5/28

10:55 am-9:45 am

1 stop37h 05m

$1,218

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Thu 7/23

10:50 am-8:40 am

2 stops31h 35m

Washington, D.C. Dulles Intl

Mon 8/31

10:55 am-7:50 pm

2 stops23h 10m

$1,224

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Sat 6/6

1:25 pm-8:40 am

2 stops29h 00m

Washington, D.C. Dulles Intl

Sat 6/13

10:55 am-6:10 pm

2 stops45h 30m

$1,242

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 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 typical price of a round-trip flight between Kathmandu and Washington, D.C. Dulles Intl Airport?

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

In general, February 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 $1,297. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $1,316.

How far in advance should I book a flight from Kathmandu 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 $1,505 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 $1,358 on momondo.

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

As of April 2026, prices for Kathmandu to Washington, D.C. Dulles Intl Airport flights are approximately 0% 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

22h 30m

Direct flights

None
The fastest flight from Kathmandu to Washington, D.C. Dulles Intl Airport takes 22h 30m
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

Frequently asked questions about flying from Kathmandu to Washington, D.C. Dulles Intl Airport

  • 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 22h 30m.

  • 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
Air IndiaPriceFrom $1,150Free CancellationRating
5.5
2,965 reviews
Search Air India flights
Qatar AirwaysPriceFrom $1,269Free CancellationRating
7.4
3,727 reviews
Search Qatar Airways flights
Turkish AirlinesPriceFrom $1,281Free CancellationRating
7.4
4,330 reviews
Search Turkish Airlines flights
EmiratesPriceFrom $1,482Free CancellationRating
8.1
3,562 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
Laurel
Colonial Beach
Gaithersburg
Towson
Fredericksburg
Silver Spring
Rockville
Manassas
Sterling
Linthicum Heights
Tysons
Bethesda
Springfield

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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