Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Washington, D.C. Dulles Intl Airport to Kathmandu from $402

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 9/3. 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.

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

Cheap round-trip flights

Air India Logo
11:00 am - 6:35 amIAD-KTM
33h 50m1 stop
Air India Logo
7:35 am - 7:40 amKTM-IAD
33h 50m1 stop
$787Air India
Find Deal
mié., sep. 3 - mar., sep. 30
Air India Logo
12:50 pm - 9:05 amIAD-KTM
34h 30m1 stop
Air India Logo
7:35 am - 7:40 amKTM-IAD
33h 50m1 stop
$789Air India
Find Deal
dom., ago. 10 - mar., sep. 9
Air India Logo
11:00 am - 11:00 pmIAD-KTM
26h 15m1 stop
Air India Logo
7:35 am - 6:50 amKTM-IAD
34h 00m1 stop
$796Air India
Find Deal
dom., sep. 21 - lun., nov. 24
Air India Logo
11:00 am - 11:00 pmIAD-KTM
26h 15m1 stop
Air India Logo
6:30 am - 7:40 amKTM-IAD
34h 55m1 stop
$798Air India
Find Deal
mié., sep. 17 - mar., oct. 21
Air India Logo
11:00 am - 11:00 pmIAD-KTM
26h 15m1 stop
Air India Logo
6:30 am - 7:40 amKTM-IAD
34h 55m1 stop
$800Air India
Find Deal
vie., sep. 19 - mar., oct. 21
Air India Logo
12:50 pm - 8:05 pmIAD-KTM
21h 30m1 stop
Air India Logo
6:30 am - 7:40 amKTM-IAD
34h 55m1 stop
$802Air India
Find Deal
mié., ago. 20 - mar., sep. 9
Air India Logo
11:00 am - 11:00 pmIAD-KTM
26h 15m1 stop
Air India Logo
7:35 am - 7:40 amKTM-IAD
33h 50m1 stop
$804Air India
Find Deal
dom., sep. 21 - sáb., oct. 18
Air India Logo
11:00 am - 11:00 pmIAD-KTM
26h 15m1 stop
Air India Logo
6:30 am - 7:40 amKTM-IAD
34h 55m1 stop
$818Air India
Find Deal
mié., sep. 17 - jue., oct. 16
 Logo
9:40 pm - 8:05 pmIAD-KTM
36h 40m2 stops
 Logo
1:25 pm - 11:45 amKTM-IAD
56h 05m2 stops
jue., ago. 21 - jue., sep. 18
 Logo
9:00 pm - 6:35 amIAD-KTM
23h 50m2 stops
 Logo
1:25 pm - 3:40 pmKTM-IAD
36h 00m2 stops
jue., ago. 28 - jue., sep. 25

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

Our best Air India deals on Washington, D.C. Dulles Intl Airport to Kathmandu flight tickets
Air India
Sep 3
IAD11:00 amWashington, D.C. Dulles Intl
33h 50m
1 stop
KTM6:35 amKathmandu Tribhuvan
Sep 30
KTM7:35 amKathmandu Tribhuvan
33h 50m
1 stop
IAD7:40 amWashington, D.C. Dulles Intl
Air India
Aug 10
IAD12:50 pmWashington, D.C. Dulles Intl
34h 30m
1 stop
KTM9:05 amKathmandu Tribhuvan
Sep 9
KTM7:35 amKathmandu Tribhuvan
33h 50m
1 stop
IAD7:40 amWashington, D.C. Dulles Intl
Air India
Sep 21
IAD11:00 amWashington, D.C. Dulles Intl
26h 15m
1 stop
KTM11:00 pmKathmandu Tribhuvan
Nov 24
KTM7:35 amKathmandu Tribhuvan
34h 00m
1 stop
IAD6:50 amWashington, D.C. Dulles Intl

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

Our best IndiGo deals on Washington, D.C. Dulles Intl Airport to Kathmandu flight tickets
IndiGo
Jul 3
IAD1:30 pmWashington, D.C. Dulles Intl
37h 45m
2 stops
KTM1:00 pmKathmandu Tribhuvan
Jul 15
KTM10:50 amKathmandu Tribhuvan
42h 40m
2 stops
IAD7:45 pmWashington, D.C. Dulles Intl
IndiGo
Jul 6
IAD1:30 pmWashington, D.C. Dulles Intl
37h 45m
2 stops
KTM1:00 pmKathmandu Tribhuvan
Jul 19
KTM4:40 pmKathmandu Tribhuvan
36h 50m
2 stops
IAD7:45 pmWashington, D.C. Dulles Intl
IndiGo
Jul 6
IAD1:30 pmWashington, D.C. Dulles Intl
37h 45m
2 stops
KTM1:00 pmKathmandu Tribhuvan
Jul 23
KTM4:40 pmKathmandu Tribhuvan
36h 50m
2 stops
IAD7:45 pmWashington, D.C. Dulles Intl

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 August is another great option to travel to Kathmandu, with average flight prices from Washington, D.C. Dulles Intl Airport averaging around $1,256.

What is the cheapest day to depart on your flight to Kathmandu?

According to our data, Sunday is the cheapest day to fly to Kathmandu from Washington, D.C. Dulles Intl Airport. The lowest ticket price found for a Sunday departure recently was $1,155. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Washington, D.C. Dulles Intl Airport to Kathmandu on a Thursday will generally be more expensive and average around $1,464. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Kathmandu?

In the morning is the cheapest time of day to fly from Washington, D.C. Dulles Intl Airport to Kathmandu when you can find flight prices for as low as $1,248. Flying to Kathmandu in the morning is an ideal time because this is during off-peak travel hours. Flights at noon are often more expensive with an average ticket price of $1,696.

What is the cheapest Washington, D.C. Dulles Intl to Kathmandu Tribhuvan flight route?

Fly from Washington, D.C. Dulles Intl to Kathmandu Tribhuvan for the best Washington, D.C. Dulles Intl - Kathmandu Tribhuvan flight prices

How far in advance should I book a flight 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 $1,472 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 $1,227 on momondo.

What cabin class options are available on Washington, D.C. Dulles Intl to Kathmandu Tribhuvan flights?

There are 1 cabin classes available to choose from on Washington, D.C. Dulles Intl to Kathmandu Tribhuvan flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

You could potentially save up to 12% 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 2025, prices for Washington, D.C. Dulles Intl Airport to Kathmandu flights are approximately 35% cheaper 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

Best Price Found

$402

Fastest flight time

18h 15m

Direct flights

None

Airports in Kathmandu

1 airport
The best one-way flight to Kathmandu from Washington, D.C. Dulles Intl Airport in the past 72 hours is $402. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Kathmandu found on momondo in the last 72 hours is $787.
The fastest flight from Washington, D.C. Dulles Intl Airport to Kathmandu takes 18h 15m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Kathmandu. Popular non-direct route for this connection is Washington, D.C. Dulles Intl Airport - Kathmandu Tribhuvan Airport.
There is 1 airport near Kathmandu: Kathmandu Tribhuvan (KTM)

  • 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 18h 15m.

  • 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
Etihad AirwaysPriceFrom $777Free CancellationRating
7.4
1,224 reviews
Search Etihad Airways flights
Air IndiaPriceFrom $920Free CancellationRating
5.5
2,921 reviews
Search Air India flights
KLMPriceFrom $1,135Free CancellationRating
7.8
1,366 reviews
Search KLM flights
Qatar AirwaysPriceFrom $1,148Free CancellationRating
7.4
3,596 reviews
Search Qatar Airways flights
IndiGoPriceFrom $1,170Free CancellationRating
6.8
478 reviews
Search IndiGo flights
Turkish AirlinesPriceFrom $1,184Free CancellationRating
7.3
3,884 reviews
Search Turkish Airlines flights
EmiratesPriceFrom $1,249Free CancellationRating
8.1
3,285 reviews
Search Emirates flights
Singapore AirlinesPriceFrom $1,275Free CancellationRating
8.1
1,319 reviews
Search Singapore Airlines flights
SWISSPriceFrom $1,324Free CancellationRating
7.5
1,653 reviews
Search SWISS flights

Traveling to a place near Kathmandu?

Book flights to Kathmandu if you plan to visit one of these locations
Nagarkot

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Kathmandu. momondo saves you time and could save you money on your trip.

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?

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

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
sáb. 7/5
sáb. 7/12

Find better results for your trip to Nepal

Fly your favorite airline to Kathmandu

Airlines are sorted and displayed according to clicks in the past 7 days on momondo