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Cheap flights from Washington, D.C. to Kathmandu from $426

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. to Kathmandu departing on 2/1. 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 Washington, D.C. to Kathmandu

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
2:35 pm - 6:35 amIAD-KTM
29h 15m3 stops
Multiple Airlines Logo
10:50 am - 10:05 amKTM-IAD
33h 00m2 stops
$1,108Multiple Airlines
Find Deal
Sat, Feb 14 - Sat, Mar 14
Multiple Airlines Logo
6:10 pm - 11:50 amIAD-KTM
30h 55m3 stops
Multiple Airlines Logo
10:50 am - 9:05 amKTM-IAD
33h 00m2 stops
$1,109Multiple Airlines
Find Deal
Sat, Jan 31 - Sun, Feb 15
IndiGo Logo
1:30 pm - 1:30 pmIAD-KTM
37h 15m2 stops
IndiGo Logo
10:50 am - 7:20 pmKTM-IAD
43h 15m2 stops
$1,112IndiGo
Find Deal
Sun, Nov 23 - Fri, Dec 19
IndiGo Logo
1:30 pm - 4:10 pmIAD-KTM
39h 55m2 stops
IndiGo Logo
1:15 pm - 7:20 pmKTM-IAD
40h 50m2 stops
$1,113IndiGo
Find Deal
Tue, Jan 27 - Wed, Feb 18
IndiGo Logo
1:30 pm - 1:30 pmIAD-KTM
37h 15m2 stops
IndiGo Logo
1:15 pm - 7:20 pmKTM-IAD
40h 50m2 stops
$1,114IndiGo
Find Deal
Wed, Nov 19 - Tue, Dec 2
Turkish Airlines Logo
9:15 pm - 11:10 amIAD-KTM
27h 10m1 stop
Turkish Airlines Logo
12:35 pm - 7:20 pmKTM-IAD
41h 30m1 stop
$1,122Turkish Airlines
Find Deal
Sun, Jan 4 - Sun, Feb 1
Air India Logo
6:05 am - 12:15 amDCA-KTM
32h 25m2 stops
Air India Logo
2:55 pm - 10:57 pmKTM-DCA
41h 47m2 stops
$1,376Air India
Find Deal
Wed, Mar 18 - Tue, Mar 24
Air India Logo
6:05 am - 12:15 amDCA-KTM
32h 25m2 stops
Air India Logo
9:00 pm - 10:57 pmKTM-DCA
35h 42m2 stops
$1,385Air India
Find Deal
Sat, Apr 11 - Tue, Apr 21
Qatar Airways Logo
6:00 am - 7:55 amBWI-KTM
39h 10m2 stops
Qatar Airways Logo
5:40 pm - 11:52 pmKTM-BWI
40h 57m2 stops
$1,390Qatar Airways
Find Deal
Tue, Jan 20 - Fri, Jan 30
Qatar Airways Logo
6:00 am - 5:50 pmBWI-KTM
49h 05m2 stops
Qatar Airways Logo
5:40 pm - 11:58 pmKTM-BWI
41h 03m2 stops
$1,392Qatar Airways
Find Deal
Wed, Feb 4 - Tue, Feb 17

Air India flights from Washington, D.C. to Kathmandu

Our best Air India deals on Washington, D.C. to Kathmandu flight tickets
Air India
Mar 18
DCA6:05 amWashington, D.C. Reagan-National
32h 25m
2 stops
KTM12:15 amKathmandu Tribhuvan
Mar 24
KTM2:55 pmKathmandu Tribhuvan
41h 47m
2 stops
DCA10:57 pmWashington, D.C. Reagan-National
$1,376
Find similar
Air India
Apr 11
DCA6:05 amWashington, D.C. Reagan-National
32h 25m
2 stops
KTM12:15 amKathmandu Tribhuvan
Apr 21
KTM9:00 pmKathmandu Tribhuvan
35h 42m
2 stops
DCA10:57 pmWashington, D.C. Reagan-National
$1,385
Find similar
Air India
Mar 29
DCA6:05 amWashington, D.C. Reagan-National
32h 25m
2 stops
KTM12:15 amKathmandu Tribhuvan
Apr 8
KTM7:35 amKathmandu Tribhuvan
49h 07m
2 stops
DCA10:57 pmWashington, D.C. Reagan-National
$1,422
Find similar

Qatar Airways flights from Washington, D.C. to Kathmandu

Our best Qatar Airways deals on Washington, D.C. to Kathmandu flight tickets
Qatar Airways
Nov 12
IAD10:40 amWashington, D.C. Dulles Intl
19h 00m
1 stop
KTM4:25 pmKathmandu Tribhuvan
Nov 20
KTM11:00 amKathmandu Tribhuvan
32h 05m
1 stop
IAD8:20 amWashington, D.C. Dulles Intl
$1,310
Find similar
Qatar Airways
Nov 12
IAD10:40 amWashington, D.C. Dulles Intl
20h 25m
1 stop
KTM5:50 pmKathmandu Tribhuvan
Nov 26
KTM11:00 amKathmandu Tribhuvan
39h 40m
1 stop
IAD3:55 pmWashington, D.C. Dulles Intl
$1,313
Find similar
Qatar Airways
Nov 14
IAD10:40 amWashington, D.C. Dulles Intl
19h 00m
1 stop
KTM4:25 pmKathmandu Tribhuvan
Dec 4
KTM11:00 amKathmandu Tribhuvan
32h 05m
1 stop
IAD8:20 amWashington, D.C. Dulles Intl
$1,348
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 November 6, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Kathmandu that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sat 2/14

2:35 pm-6:35 am

3 stops29h 15m

Kathmandu Tribhuvan

Sat 3/14

10:50 am-10:05 am

2 stops33h 00m

$1,108

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sat 1/31

6:10 pm-11:50 am

3 stops30h 55m

Kathmandu Tribhuvan

Sun 2/15

10:50 am-9:05 am

2 stops33h 00m

$1,109

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sun 11/23

1:30 pm-1:30 pm

2 stops37h 15m

Kathmandu Tribhuvan

Fri 12/19

10:50 am-7:20 pm

2 stops43h 15m

$1,112

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Tue 1/27

1:30 pm-4:10 pm

2 stops39h 55m

Kathmandu Tribhuvan

Wed 2/18

1:15 pm-7:20 pm

2 stops40h 50m

$1,113

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Wed 11/19

1:30 pm-1:30 pm

2 stops37h 15m

Kathmandu Tribhuvan

Tue 12/2

1:15 pm-7:20 pm

2 stops40h 50m

$1,114

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sun 1/4

9:15 pm-11:10 am

1 stop27h 10m

Kathmandu Tribhuvan

Sun 2/1

12:35 pm-7:20 pm

1 stop41h 30m

$1,122

Washington, D.C.Kathmandu

DCA - KTM

DCAKTM

Washington, D.C. Reagan-National

Wed 3/18

6:05 am-12:15 am

2 stops32h 25m

Kathmandu Tribhuvan

Tue 3/24

2:55 pm-10:57 pm

2 stops41h 47m

$1,376

Washington, D.C.Kathmandu

DCA - KTM

DCAKTM

Washington, D.C. Reagan-National

Sat 4/11

6:05 am-12:15 am

2 stops32h 25m

Kathmandu Tribhuvan

Tue 4/21

9:00 pm-10:57 pm

2 stops35h 42m

$1,385

BaltimoreKathmandu

BWI - KTM

BWIKTM

Baltimore/Washington

Tue 1/20

6:00 am-7:55 am

2 stops39h 10m

Kathmandu Tribhuvan

Fri 1/30

5:40 pm-11:52 pm

2 stops40h 57m

$1,390

BaltimoreKathmandu

BWI - KTM

BWIKTM

Baltimore/Washington

Wed 2/4

6:00 am-5:50 pm

2 stops49h 05m

Kathmandu Tribhuvan

Tue 2/17

5:40 pm-11:58 pm

2 stops41h 03m

$1,392

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. 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 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. averaging around $1,348.

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

According to our data, Tuesday is the cheapest day to fly to Kathmandu from Washington, D.C.. The lowest ticket price found for a Tuesday departure recently was $1,295. 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. 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 afternoon is the cheapest time of day to fly from Washington, D.C. to Kathmandu when you can find flight prices for as low as $1,501. Flying to Kathmandu in the afternoon 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.

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. when booking weeks ahead of your departure date. In general, you can expect to find flights to Kathmandu for around $1,443 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. for as low as $1,239 on momondo.

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

You could potentially save up to 3% on your flight if you consider stops on a Washington, D.C. to Kathmandu flight.

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

As of November 2025, prices for Washington, D.C. to Kathmandu flights are approximately 22% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. to Kathmandu

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. 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. to Kathmandu (WAS to KTM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Kathmandu

Direct flights

None
There are no direct flights from Washington, D.C. to Kathmandu. There are no popular flight routes from Washington, D.C. to Kathmandu.
Search flight deals

  • How far is Washington, D.C. to Kathmandu Tribhuvan by plane?

    A flight from Washington, D.C. to Kathmandu Tribhuvan will travel around 7689.5 mi. A reasonable flight in good conditions will take 22h 55m.

  • When did momondo last update prices for flights from Washington, D.C. to Kathmandu Tribhuvan Airport?

    Prices for flights from Washington, D.C. to Kathmandu Tribhuvan Airport were last updated today.

  • How many operators does momondo search for flights from Washington, D.C. to Kathmandu Tribhuvan Airport?

  • How old do you have to be to fly from Washington, D.C. to Kathmandu Tribhuvan Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. to Kathmandu Tribhuvan Airport.

  • What documentation or ID do you need to fly to Kathmandu Tribhuvan Airport?

    The required travel and health documents for your Kathmandu Tribhuvan Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Kathmandu Tribhuvan Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Washington, D.C. to Kathmandu?

Best airlines flying from Washington, D.C. to Kathmandu

Compare and see reviews for airlines that fly from Washington, D.C. to Kathmandu with momondo
Airline
Rating
Free Cancellation
Price
Air IndiaPriceFrom $863Free CancellationRating
5.5
2,941 reviews
Search Air India flights
IndiGoPriceFrom $989Free CancellationRating
6.9
496 reviews
Search IndiGo flights
EmiratesPriceFrom $1,092Free CancellationRating
8.1
3,402 reviews
Search Emirates flights
Turkish AirlinesPriceFrom $1,179Free CancellationRating
7.3
4,032 reviews
Search Turkish Airlines flights
Qatar AirwaysPriceFrom $1,222Free CancellationRating
7.4
3,661 reviews
Search Qatar Airways flights
SWISSPriceFrom $1,324Free CancellationRating
7.5
1,779 reviews
Search SWISS flights
Etihad AirwaysPriceFrom $1,403Free CancellationRating
7.4
1,285 reviews
Search Etihad Airways 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?

Finding the right flight to Kathmandu from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Kathmandu quick and easy, saving you time and money.

Can I find flights from Washington, D.C. to Kathmandu with flexible booking policies on momondo?

Yes. All flights to Kathmandu from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Washington, D.C. to Kathmandu?

momondo provides multiple filters to help you find the best flight to Kathmandu from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Washington, D.C. to Kathmandu right now. Can momondo alert me if prices change?

Price alerts on flights to Kathmandu from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Emirates