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Cheap flights from Kathmandu to Washington, D.C. from $647

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 6/15. 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
8:10 am - 9:45 am
KTM
-
IAD
35h 20m
2 stops
Multiple Airlines Logo
3:10 pm - 12:50 pm
IAD
-
KTM
35h 55m
2 stops
$1,115Multiple Airlines
Thu, Jul 16 - Thu, Sep 24
Multiple Airlines Logo
8:10 am - 9:45 am
KTM
-
IAD
35h 20m
2 stops
Multiple Airlines Logo
3:10 pm - 12:15 pm
IAD
-
KTM
59h 20m
3 stops
$1,187Multiple Airlines
Thu, Jul 16 - Thu, Sep 24
Multiple Airlines Logo
8:10 am - 8:40 am
KTM
-
IAD
34h 15m
2 stops
Multiple Airlines Logo
10:55 am - 12:05 am
IAD
-
KTM
27h 25m
2 stops
$1,200Multiple Airlines
Tue, Jul 21 - Thu, Aug 6
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
$1,207Multiple Airlines
Tue, Jun 9 - Thu, Sep 24
Multiple Airlines Logo
8:10 am - 8:40 am
KTM
-
IAD
34h 15m
2 stops
Multiple Airlines Logo
10:55 am - 6:10 pm
IAD
-
KTM
45h 30m
2 stops
$1,216Multiple Airlines
Thu, Jun 18 - Thu, Jun 25
Multiple Airlines Logo
8:10 am - 8:40 am
KTM
-
IAD
34h 15m
2 stops
Multiple Airlines Logo
10:55 am - 6:10 pm
IAD
-
KTM
45h 30m
2 stops
$1,220Multiple Airlines
Tue, Jun 16 - Tue, Jun 23
Multiple Airlines Logo
1:25 pm - 8:40 am
KTM
-
IAD
53h 00m
2 stops
Multiple Airlines Logo
10:55 am - 6:10 pm
IAD
-
KTM
45h 30m
2 stops
$1,221Multiple Airlines
Mon, Jun 15 - Mon, Jun 22
Multiple Airlines Logo
1:25 pm - 8:40 am
KTM
-
IAD
29h 00m
2 stops
Multiple Airlines Logo
10:55 am - 12:50 pm
IAD
-
KTM
40h 10m
2 stops
$1,226Multiple Airlines
Sun, Jul 19 - Thu, Oct 1
Multiple Airlines Logo
2:05 pm - 3:45 pm
KTM
-
IAD
35h 25m
2 stops
Multiple Airlines Logo
6:50 pm - 7:50 pm
IAD
-
KTM
39h 15m
2 stops
$1,238Multiple Airlines
Tue, Jul 14 - Sat, Oct 3
Multiple Airlines Logo
1:25 pm - 8:40 am
KTM
-
IAD
29h 00m
2 stops
Multiple Airlines Logo
10:55 am - 12:50 pm
IAD
-
KTM
40h 10m
2 stops
$1,239Multiple Airlines
Sat, Jun 13 - Tue, Oct 13

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 27
KTM3:30 pmKathmandu Tribhuvan
36h 35m
1 stop
IAD6:20 pmWashington, D.C. Dulles Intl
Aug 27
IAD9:00 pmWashington, D.C. Dulles Intl
26h 05m
1 stop
KTM8:50 amKathmandu Tribhuvan
$1,269
Qatar Airways
May 27
KTM3:30 pmKathmandu Tribhuvan
36h 35m
1 stop
IAD6:20 pmWashington, D.C. Dulles Intl
Aug 27
IAD9:00 pmWashington, D.C. Dulles Intl
26h 05m
1 stop
KTM8:50 amKathmandu Tribhuvan
$1,270
Qatar Airways
May 27
KTM3:30 pmKathmandu Tribhuvan
36h 35m
1 stop
IAD6:20 pmWashington, D.C. Dulles Intl
Aug 27
IAD9:00 pmWashington, D.C. Dulles Intl
26h 05m
1 stop
KTM8:50 amKathmandu Tribhuvan
$1,271

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

Our best SWISS deals on Kathmandu to Washington, D.C. Dulles Intl Airport flight tickets
SWISS
May 28
KTM9:10 pmKathmandu Tribhuvan
26h 55m
3 stops
IAD2:20 pmWashington, D.C. Dulles Intl
Jun 27
IAD8:20 pmWashington, D.C. Dulles Intl
24h 30m
2 stops
KTM6:35 amKathmandu Tribhuvan
$2,871
SWISS
May 28
KTM9:10 pmKathmandu Tribhuvan
26h 55m
3 stops
IAD2:20 pmWashington, D.C. Dulles Intl
Jun 27
IAD6:05 pmWashington, D.C. Dulles Intl
26h 45m
3 stops
KTM6:35 amKathmandu Tribhuvan
$3,061
SWISS
May 28
KTM9:10 pmKathmandu Tribhuvan
26h 55m
3 stops
IAD2:20 pmWashington, D.C. Dulles Intl
Oct 22
IAD5:35 pmWashington, D.C. Dulles Intl
27h 15m
3 stops
KTM6:35 amKathmandu Tribhuvan
$5,543

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 May 23, 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 7/16

8:10 am-9:45 am

2 stops35h 20m

Washington, D.C. Dulles Intl

Thu 9/24

3:10 pm-12:50 pm

2 stops35h 55m

$1,115

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Thu 7/16

8:10 am-9:45 am

2 stops35h 20m

Washington, D.C. Dulles Intl

Thu 9/24

3:10 pm-12:15 pm

3 stops59h 20m

$1,187
Quickest round-trip

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Tue 7/21

8:10 am-8:40 am

2 stops34h 15m

Washington, D.C. Dulles Intl

Thu 8/6

10:55 am-12:05 am

2 stops27h 25m

$1,200

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Tue 6/9

8:10 am-8:40 am

2 stops34h 15m

Washington, D.C. Dulles Intl

Thu 9/24

10:55 am-12:50 pm

2 stops40h 10m

$1,207

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Thu 6/18

8:10 am-8:40 am

2 stops34h 15m

Washington, D.C. Dulles Intl

Thu 6/25

10:55 am-6:10 pm

2 stops45h 30m

$1,216

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Tue 6/16

8:10 am-8:40 am

2 stops34h 15m

Washington, D.C. Dulles Intl

Tue 6/23

10:55 am-6:10 pm

2 stops45h 30m

$1,220

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Mon 6/15

1:25 pm-8:40 am

2 stops53h 00m

Washington, D.C. Dulles Intl

Mon 6/22

10:55 am-6:10 pm

2 stops45h 30m

$1,221

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Sun 7/19

1:25 pm-8:40 am

2 stops29h 00m

Washington, D.C. Dulles Intl

Thu 10/1

10:55 am-12:50 pm

2 stops40h 10m

$1,226

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Tue 7/14

2:05 pm-3:45 pm

2 stops35h 25m

Washington, D.C. Dulles Intl

Sat 10/3

6:50 pm-7:50 pm

2 stops39h 15m

$1,238

KathmanduWashington, D.C.

KTM - IAD

KTMIAD

Kathmandu Tribhuvan

Sat 6/13

1:25 pm-8:40 am

2 stops29h 00m

Washington, D.C. Dulles Intl

Tue 10/13

10:55 am-12:50 pm

2 stops40h 10m

$1,239

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 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 $1,519 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 $1,325 on momondo.

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

You could potentially save up to 5% 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 May 2026, prices for Kathmandu to Washington, D.C. Dulles Intl Airport flights are approximately 17% 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

24h 30m

Direct flights

None
The fastest flight from Kathmandu to Washington, D.C. Dulles Intl Airport takes 24h 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 24h 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
2,958 reviews
Search Air India flights
Qatar AirwaysPriceFrom $1,241Free CancellationRating
7.4
3,730 reviews
Search Qatar Airways flights
Turkish AirlinesPriceFrom $1,290Free CancellationRating
7.4
4,394 reviews
Search Turkish Airlines flights
EmiratesPriceFrom $1,482Free CancellationRating
8.1
3,575 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
Gaithersburg
Colonial Beach
Fredericksburg
Silver Spring
Towson
Rockville
Sterling
Manassas
Linthicum Heights
Tysons
Springfield
Bethesda

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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