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Cheap flights from Washington, D.C. Dulles Intl Airport to Kathmandu from $585

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 7/26. 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
1 adult, Economy, 0 bags

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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
3:10 pm - 6:10 pm
IAD
-
KTM
41h 15m
2 stops
Multiple Airlines Logo
8:10 am - 9:45 am
KTM
-
IAD
35h 20m
2 stops
$1,395Multiple Airlines
Tue, Jun 16 - Tue, Jul 14
Multiple Airlines Logo
10:55 am - 6:10 pm
IAD
-
KTM
45h 30m
2 stops
Multiple Airlines Logo
1:25 pm - 8:40 am
KTM
-
IAD
29h 00m
2 stops
$1,396Multiple Airlines
Fri, Aug 14 - Mon, Aug 31
Multiple Airlines Logo
10:55 am - 6:10 pm
IAD
-
KTM
45h 30m
2 stops
Multiple Airlines Logo
8:10 am - 8:40 am
KTM
-
IAD
34h 15m
2 stops
$1,398Multiple Airlines
Mon, Aug 3 - Sat, Aug 29
Multiple Airlines Logo
10:55 am - 12:50 pm
IAD
-
KTM
40h 10m
2 stops
Multiple Airlines Logo
8:10 am - 8:40 am
KTM
-
IAD
34h 15m
2 stops
$1,399Multiple Airlines
Tue, Jul 21 - Sat, Sep 26
Multiple Airlines Logo
10:55 am - 12:50 pm
IAD
-
KTM
40h 10m
2 stops
Multiple Airlines Logo
8:10 am - 8:40 am
KTM
-
IAD
34h 15m
2 stops
$1,400Multiple Airlines
Tue, Jul 21 - Sat, Sep 26
Multiple Airlines Logo
10:55 am - 6:10 pm
IAD
-
KTM
45h 30m
2 stops
Multiple Airlines Logo
8:10 am - 8:40 am
KTM
-
IAD
34h 15m
2 stops
$1,406Multiple Airlines
Sat, Oct 3 - Sat, Oct 17
Multiple Airlines Logo
11:15 am - 7:50 pm
IAD
-
KTM
22h 50m
2 stops
Multiple Airlines Logo
2:30 pm - 3:55 pm
KTM
-
IAD
36h 10m
3 stops
$1,407Multiple Airlines
Wed, Oct 14 - Mon, Dec 14
Qatar Airways Logo
9:00 pm - 8:50 am
IAD
-
KTM
26h 05m
1 stop
Qatar Airways Logo
6:45 pm - 8:55 am
KTM
-
IAD
23h 55m
1 stop
$1,412Qatar Airways
Thu, Sep 17 - Thu, Oct 8
Multiple Airlines Logo
3:10 pm - 2:10 pm
IAD
-
KTM
37h 15m
3 stops
Multiple Airlines Logo
10:50 am - 9:45 am
KTM
-
IAD
32h 40m
2 stops
$1,414Multiple Airlines
Thu, Jul 2 - Fri, Jul 17
Multiple Airlines Logo
10:55 am - 9:45 am
IAD
-
KTM
37h 05m
1 stop
Multiple Airlines Logo
1:25 pm - 8:40 am
KTM
-
IAD
29h 00m
2 stops
$1,415Multiple Airlines
Sun, Aug 9 - Sun, Aug 30

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

Our best Qatar Airways deals on Washington, D.C. Dulles Intl Airport to Kathmandu flight tickets
Qatar Airways
Aug 19
IAD9:00 pmWashington, D.C. Dulles Intl
27h 05m
1 stop
KTM9:50 amKathmandu Tribhuvan
Sep 2
KTM6:00 pmKathmandu Tribhuvan
24h 30m
1 stop
IAD8:45 amWashington, D.C. Dulles Intl
$1,412
Qatar Airways
Sep 29
IAD9:00 pmWashington, D.C. Dulles Intl
26h 05m
1 stop
KTM8:50 amKathmandu Tribhuvan
Dec 16
KTM6:45 pmKathmandu Tribhuvan
31h 55m
1 stop
IAD3:55 pmWashington, D.C. Dulles Intl
$1,421
Qatar Airways
Oct 19
IAD9:00 pmWashington, D.C. Dulles Intl
26h 05m
1 stop
KTM8:50 amKathmandu Tribhuvan
Nov 5
KTM6:45 pmKathmandu Tribhuvan
24h 20m
1 stop
IAD8:20 amWashington, D.C. Dulles Intl
$1,428

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

Our best Emirates deals on Washington, D.C. Dulles Intl Airport to Kathmandu flight tickets
Emirates
Aug 11
IAD10:55 amWashington, D.C. Dulles Intl
26h 55m
1 stop
KTM11:35 pmKathmandu Tribhuvan
Sep 10
KTM12:35 amKathmandu Tribhuvan
41h 50m
1 stop
IAD8:40 amWashington, D.C. Dulles Intl
$1,419
Emirates
Aug 19
IAD10:55 amWashington, D.C. Dulles Intl
26h 55m
1 stop
KTM11:35 pmKathmandu Tribhuvan
Sep 1
KTM12:35 amKathmandu Tribhuvan
41h 50m
1 stop
IAD8:40 amWashington, D.C. Dulles Intl
$1,420
Emirates
Aug 18
IAD10:55 amWashington, D.C. Dulles Intl
35h 25m
1 stop
KTM8:05 amKathmandu Tribhuvan
Aug 31
KTM9:05 amKathmandu Tribhuvan
33h 20m
1 stop
IAD8:40 amWashington, D.C. Dulles Intl
$1,446

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 June 4, 2026.
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

Cheapest round-trip

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Tue 6/16

3:10 pm-6:10 pm

2 stops41h 15m

Kathmandu Tribhuvan

Tue 7/14

8:10 am-9:45 am

2 stops35h 20m

$1,395

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Fri 8/14

10:55 am-6:10 pm

2 stops45h 30m

Kathmandu Tribhuvan

Mon 8/31

1:25 pm-8:40 am

2 stops29h 00m

$1,396

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Mon 8/3

10:55 am-6:10 pm

2 stops45h 30m

Kathmandu Tribhuvan

Sat 8/29

8:10 am-8:40 am

2 stops34h 15m

$1,398

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Tue 7/21

10:55 am-12:50 pm

2 stops40h 10m

Kathmandu Tribhuvan

Sat 9/26

8:10 am-8:40 am

2 stops34h 15m

$1,399

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Tue 7/21

10:55 am-12:50 pm

2 stops40h 10m

Kathmandu Tribhuvan

Sat 9/26

8:10 am-8:40 am

2 stops34h 15m

$1,400

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sat 10/3

10:55 am-6:10 pm

2 stops45h 30m

Kathmandu Tribhuvan

Sat 10/17

8:10 am-8:40 am

2 stops34h 15m

$1,406

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Wed 10/14

11:15 am-7:50 pm

2 stops22h 50m

Kathmandu Tribhuvan

Mon 12/14

2:30 pm-3:55 pm

3 stops36h 10m

$1,407
Quickest round-trip

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Thu 9/17

9:00 pm-8:50 am

1 stop26h 05m

Kathmandu Tribhuvan

Thu 10/8

6:45 pm-8:55 am

1 stop23h 55m

$1,412

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Thu 7/2

3:10 pm-2:10 pm

3 stops37h 15m

Kathmandu Tribhuvan

Fri 7/17

10:50 am-9:45 am

2 stops32h 40m

$1,414

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sun 8/9

10:55 am-9:45 am

1 stop37h 05m

Kathmandu Tribhuvan

Sun 8/30

1:25 pm-8:40 am

2 stops29h 00m

$1,415

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

What is the cheapest month to fly to Kathmandu?

The month of January is another great option to travel to Kathmandu, with average flight prices from Washington, D.C. Dulles Intl Airport averaging around $1,267.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport 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 $1,452 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 $1,291 on momondo.

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

You could potentially save up to 1% 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 June 2026, prices for Washington, D.C. Dulles Intl Airport to Kathmandu flights are approximately 7% more expensive 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

Fastest flight time

19h 55m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Kathmandu takes 19h 55m
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

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

  • 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 19h 55m.

  • 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
IndiGoPriceFrom $499Free CancellationRating
6.8
564 reviews
Search IndiGo flights
Air IndiaPriceFrom $799Free CancellationRating
5.5
2,960 reviews
Search Air India flights
Turkish AirlinesPriceFrom $1,080Free CancellationRating
7.4
4,408 reviews
Search Turkish Airlines flights
EmiratesPriceFrom $1,095Free CancellationRating
8.1
3,581 reviews
Search Emirates flights
Etihad AirwaysPriceFrom $1,242Free CancellationRating
7.3
1,444 reviews
Search Etihad Airways flights
Qatar AirwaysPriceFrom $1,257Free CancellationRating
7.4
3,730 reviews
Search Qatar Airways flights
SWISSPriceFrom $1,638Free CancellationRating
7.5
1,964 reviews
Search SWISS 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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Fly your favorite airline to Kathmandu

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Qatar Airways
Emirates
Turkish Airlines
Air India
IndiGo
Etihad Airways
SWISS