What are the cheapest airlines flying from Washington, D.C. to Kathmandu round-trip?

IndiGo, at $1,206, was found to be the cheapest airline from Washington, D.C. to Kathmandu.Alternate airlines to your destination round-trip include Air India and Cathay Pacific. You may be able to fly from Washington, D.C. to Kathmandu for 20% less than the average price by searching for these airlines.

What are the cheapest airlines to fly from Washington, D.C. to Kathmandu one-way?

For one-way options, check prices for Air India. According to our data, you can fly for as low as $465. Users have also found prices from $505 and $660 on IndiGo and Cathay Pacific, respectively.

What are the most popular routes from Washington, D.C. to Kathmandu?

When deciding which route to take from Washington, D.C. to Kathmandu consider Washington, D.C. Dulles Intl - Kathmandu Tribhuvan, Washington, D.C. Reagan-National - Kathmandu Tribhuvan or Baltimore/Washington - Kathmandu Tribhuvan as they are the most popular.

What are the most popular airlines that fly from Washington, D.C. to Kathmandu?

IndiGo, Air India and Emirates are the most popular airlines when flying from Washington, D.C. to Kathmandu.

Where are the most common layover locations when flying from Washington, D.C. to Kathmandu?

Most of the time, Washington, D.C. to Kathmandu flights that have layovers will stop in Doha. New Delhi sees the next most layovers on Washington, D.C. to Kathmandu flights.

Where are the least popular layover locations for Washington, D.C. to Kathmandu flights?

The least popular layover on flights from Washington, D.C. to Kathmandu is Istanbul.

What are some popular things to do or see while on a layover in Doha?

Doha travelers tend to visit Museum of Islamic Art, Katara Cultural Village, and Aspire Tower more than anywhere else. Museum of Islamic Art, Katara Cultural Village, and Aspire Tower are located about 5.2 mi, 8.7 mi, and 10.6 mi, respectively from Doha Hamad Intl. Travelers can book a car rental at Doha Hamad Intl for about $27 per day to make their sightseeing more efficient.

What are some popular points of interest to see during a layover in New Delhi?

Most New Delhi visitors opt to spend their time at Karol Bagh, Lajpat Nagar Central Market, and Gurudwara Bangla Sahib. Karol Bagh, Lajpat Nagar Central Market and Gurudwara Bangla Sahib are located about 8.7 mi, 8.7 mi, and 8.2 mi, respectively from New Delhi Indira Gandhi Intl if you are interested in checking them out. Travelers in need of a car in New Delhi can rent one for about $74 per day.

What is the cheapest day to fly round-trip from Washington, D.C. to Kathmandu?

Flying to your destination on a Wednesday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Kathmandu. Check prices with Cheapflights to find a great deal for your trip.

How far in advance should I book a flight from Washington, D.C. to Kathmandu?

To save on the cost of your flight from Washington, D.C. to Kathmandu, book at least 9 days before your planned departure. Booking around this time can save you about 57% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $1,035 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,625.

What is the cheapest month to fly from Washington, D.C. to Kathmandu?

September can be a great time to fly to Kathmandu from Washington, D.C. with a flight ticket averaging about $1,510. Cheapflights users have found deals in the month of September for as cheap as $979. The most expensive prices can be found in the month of December.

Most accurate provider : When it comes to deals on Washington, D.C.-Kathmandu flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Washington, D.C.-Kathmandu flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Kathmandu flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Washington, D.C.-Kathmandu flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-Kathmandu flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly into for flights to Kathmandu from Washington, D.C.?

If you book a flight to Kathmandu from Washington, D.C., you will be flying to Tribhuvan, which is the city’s only airport. Kathmandu Tribhuvan (KTM) is located 2.5 mi from the center of Kathmandu. There are 0 flights from Washington, D.C. to Tribhuvan per day from 8 different airlines.

Can I find deals for flights from Washington, D.C. to Kathmandu that include hotel bookings?

Yes. In addition to deals on Washington, D.C. to Kathmandu flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Washington, D.C. to Kathmandu?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Kathmandu.

Can I find deals for business class flights from Washington, D.C. to Kathmandu?

Yes. Cheapflights offers flight deals from Washington, D.C. to Kathmandu by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$465+ Flights from Washington, D.C. to Kathmandu

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Washington, D.C. to Kathmandu Tribhuvan are usually found in September or January, booked 8 days in advance, depart on a Tuesday or Friday and return on a Thursday

Cheap flight deals from Washington, D.C. to Kathmandu

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$1,199 (Mytrip)
One-way from	$465 (Kiwi.com)
Popular in	December
Cheapest in	September
Average price	$1,404

Provider with most accurate pricing for Washington, D.C. (WAS)-Kathmandu Tribhuvan flight deals.

Search Deals

Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Kathmandu Tribhuvan flights.

Search Deals

From Washington, D.C. (WAS) to Kathmandu Tribhuvan

Search Deals

One-way flight from Washington, D.C. (WAS) to Kathmandu Tribhuvan

Search Deals

Highest demand for flights based on searches. 6% potential increase in price ($99 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($46 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Find flight deals from Washington, D.C. to Kathmandu

Cheapest flights from Washington, D.C. to Kathmandu
Explore the most affordable flight options available from Washington, D.C. to Kathmandu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 22, 2025.

Tue 4/2911:00 amIAD - KTM

2 stops23h 30mMultiple Airlines

Tue 5/63:05 pmKTM - IAD

2 stops26h 20mMultiple Airlines

Deal found 4/22

$1,199

Tue 9/29:40 pmIAD - KTM

2 stops26h 25mIndiGo

Thu 10/210:50 amKTM - IAD

2 stops42h 40mIndiGo

Deal found 4/22

$1,201

Wed 9/2411:00 amIAD - KTM

1 stop36h 20mAir India

Thu 10/307:35 amKTM - IAD

1 stop34h 00mAir India

Deal found 4/22

$1,203

Mon 5/511:55 amDCA - KTM

2 stops48h 05mCathay Pacific

Mon 6/911:00 pmKTM - DCA

2 stops42h 35mCathay Pacific

Deal found 4/21

$1,305

Thu 5/15:45 amBWI - KTM

3 stops39h 00mMultiple Airlines

Sun 5/1111:45 amKTM - BWI

3 stops33h 30mMultiple Airlines

Deal found 4/22

$1,344

Tue 5/611:00 amIAD - KTM

1 stop20h 00mQatar Airways

Sun 5/1810:05 amKTM - IAD

1 stop39h 20mQatar Airways

Deal found 4/22

$1,354

Sun 8/245:20 pmBWI - KTM

2 stops66h 40mCathay Pacific

Mon 9/111:00 pmKTM - BWI

2 stops33h 02mCathay Pacific

Deal found 4/22

$1,477

Tue 9/309:00 amDCA - KTM

3 stops51h 00mMultiple Airlines

Thu 10/2311:00 pmKTM - DCA

2 stops32h 40mMultiple Airlines

Deal found 4/22

$1,538

Tue 9/307:28 pmBWI - KTM

2 stops40h 32mSingapore Airlines

Thu 10/2311:00 pmKTM - BWI

2 stops42h 51mSingapore Airlines

Deal found 4/22

$1,563

Wed 9/246:55 pmDCA - KTM

2 stops37h 10mQatar Airways

Wed 10/296:45 pmKTM - DCA

2 stops35h 30mQatar Airways

Deal found 4/22

$1,661

Tue 9/3011:27 amBWI - KTM

2 stops43h 33mQatar Airways

Mon 10/275:40 pmKTM - BWI

2 stops38h 22mQatar Airways

Deal found 4/22

$1,684

Tue 9/309:00 amDCA - KTM

3 stops51h 00mSingapore Airlines

Thu 10/2311:00 pmKTM - DCA

3 stops55h 40mSingapore Airlines

Deal found 4/22

$1,857

Best flights from Washington, D.C. to Kathmandu
Discover carefully curated flight deals from Washington, D.C. to Kathmandu that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 22, 2025.

Tue 4/2911:00 amIAD - KTM

2 stops23h 30mMultiple Airlines

Tue 5/63:05 pmKTM - IAD

2 stops26h 20mMultiple Airlines

Deal found 4/22

$1,199

Wed 5/219:40 pmIAD - KTM

2 stops32h 15mIndiGo

Wed 5/2810:50 amKTM - IAD

2 stops42h 40mIndiGo

Deal found 4/22

$1,206

Sun 7/1311:00 amIAD - KTM

1 stop19h 45mAir India

Mon 8/257:35 amKTM - IAD

1 stop33h 50mAir India

Deal found 4/22

$1,243

Mon 5/511:55 amDCA - KTM

2 stops48h 05mCathay Pacific

Mon 6/911:00 pmKTM - DCA

2 stops42h 35mCathay Pacific

Deal found 4/21

$1,305

Tue 5/611:00 amIAD - KTM

1 stop20h 00mQatar Airways

Sun 5/1810:05 amKTM - IAD

1 stop39h 20mQatar Airways

Deal found 4/22

$1,354

Tue 7/1512:40 pmDCA - KTM

2 stops41h 15mEtihad Airways

Sun 8/244:20 pmKTM - DCA

2 stops35h 24mEtihad Airways

Deal found 4/22

$1,979

Fri 5/24:31 pmDCA - KTM

2 stops63h 14mKorean Air

Mon 6/97:20 pmKTM - DCA

2 stops38h 06mKorean Air

Deal found 4/21

$2,166

Mon 5/58:59 amDCA - KTM

2 stops51h 01mSingapore Airlines

Sun 6/811:00 pmKTM - DCA

2 stops55h 44mSingapore Airlines

Deal found 4/21

$2,180

Tue 7/15:20 pmBWI - KTM

2 stops44h 00mEmirates

Sun 8/311:55 pmKTM - BWI

2 stops31h 32mEmirates

Deal found 4/21

$2,888

Sat 5/242:30 pmBWI - KTM

3 stops33h 35mMultiple Airlines

Wed 6/43:05 pmKTM - BWI

3 stops40h 01mMultiple Airlines

Deal found 4/20

$1,601

Thu 5/16:35 amDCA - KTM

2 stops24h 25mQatar Airways

Tue 5/136:00 pmKTM - DCA

2 stops34h 36mQatar Airways

Deal found 4/21

$1,694

Mon 5/57:26 amBWI - KTM

2 stops52h 34mCathay Pacific

Mon 6/911:00 pmKTM - BWI

2 stops47h 30mCathay Pacific

Deal found 4/21

$1,724

Last-minute flights from Washington, D.C. to Kathmandu
Discover last-minute flight deals from Washington, D.C. to Kathmandu. Data last updated April 22, 2025 and is based on user searches.

Mon 4/2810:55 amIAD - KTM

1 stop26h 25mEmirates

Sat 5/177:25 pmKTM - IAD

1 stop23h 00mEmirates

Deal found 4/22

$1,745

Tue 4/2911:00 amIAD - KTM

2 stops23h 30mMultiple Airlines

Tue 5/63:05 pmKTM - IAD

2 stops26h 20mMultiple Airlines

Deal found 4/22

$1,199

Tue 4/2911:00 amIAD - KTM

1 stop17h 10mAir India

Mon 12/19:00 pmKTM - IAD

1 stop20h 35mAir India

Deal found 4/22

$1,249

Tue 4/296:35 amDCA - KTM

3 stops26h 35mMultiple Airlines

Mon 12/19:00 pmKTM - DCA

3 stops34h 45mMultiple Airlines

Deal found 4/22

$1,603

Tue 4/2911:00 pmIAD - KTM

2 stops50h 10mAir China

Mon 5/1911:55 amKTM - IAD

2 stops41h 20mAir China

Deal found 4/22

$1,892

Wed 4/309:00 pmIAD - KTM

1 stop34h 00mQatar Airways

Sun 5/1810:05 amKTM - IAD

1 stop39h 20mQatar Airways

Deal found 4/22

$1,359

Wed 4/3010:59 amBWI - KTM

2 stops36h 06mQatar Airways

Mon 5/1910:05 amKTM - BWI

2 stops45h 45mQatar Airways

Deal found 4/21

$1,717

Wed 4/3011:54 amDCA - KTM

2 stops48h 06mCathay Pacific

Sun 5/1811:00 pmKTM - DCA

2 stops29h 52mCathay Pacific

Deal found 4/22

$1,730

Wed 4/305:38 pmIAD - KTM

2 stops42h 22mSingapore Airlines

Tue 5/2011:00 pmKTM - IAD

2 stops40h 40mSingapore Airlines

Deal found 4/22

$1,993

Thu 5/15:45 amBWI - KTM

3 stops39h 00mMultiple Airlines

Sun 5/1111:45 amKTM - BWI

3 stops33h 30mMultiple Airlines

Deal found 4/22

$1,344

Thu 5/16:35 amDCA - KTM

2 stops24h 25mQatar Airways

Tue 5/136:00 pmKTM - DCA

2 stops34h 36mQatar Airways

Deal found 4/21

$1,694

Fri 5/21:30 pmIAD - KTM

2 stops37h 45mIndiGo

Sat 5/1710:50 amKTM - IAD

2 stops42h 40mIndiGo

Deal found 4/22

$1,250

One-way flights from Washington, D.C. to Kathmandu
Search for one-way flight options from Washington, D.C. to Kathmandu. Find affordable one-way fares based on user searches. Data last updated April 22, 2025.

Sat 5/311:00 amIAD - KTM

1 stop19h 45mAir India

Deal found 4/22

$465

Sun 5/48:50 pmIAD - KTM

3 stops47h 55mMultiple Airlines

Deal found 4/22

$482

Mon 5/121:30 pmIAD - KTM

2 stops40h 25mIndiGo

Deal found 4/22

$505

Tue 5/65:45 amBWI - KTM

3 stops50h 40mMultiple Airlines

Deal found 4/21

$584

Mon 5/511:55 amDCA - KTM

2 stops48h 05mCathay Pacific

Deal found 4/22

$660

Tue 5/2010:05 pmIAD - KTM

1 stop31h 50mEtihad Airways

Deal found 4/22

$667

Wed 9/241:30 pmIAD - KTM

1 stop31h 00mTurkish Airlines

Deal found 4/21

$692

Mon 5/59:00 pmIAD - KTM

1 stop26h 05mQatar Airways

Deal found 4/22

$757

Tue 5/61:45 pmDCA - KTM

2 stops40h 10mEtihad Airways

Deal found 4/22

$768

Fri 8/86:15 pmDCA - KTM

2 stops36h 45mQatar Airways

Deal found 4/21

$945

Thu 5/87:01 pmBWI - KTM

2 stops28h 04mQatar Airways

Deal found 4/21

$952

Tue 5/208:45 pmIAD - KTM

2 stops24h 05mSWISS

Deal found 4/22

$987

Cheapflights Fare Finder

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

Tue 4/29

11:00 am-8:15 pm

2 stops23h 30m

Kathmandu Tribhuvan

Tue 5/6

3:05 pm-7:40 am

2 stops26h 20m

$1,199

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Wed 5/21

9:40 pm-3:40 pm

2 stops32h 15m

Kathmandu Tribhuvan

Wed 5/28

10:50 am-7:45 pm

2 stops42h 40m

$1,206

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sun 7/13

11:00 am-4:30 pm

1 stop19h 45m

Kathmandu Tribhuvan

Mon 8/25

7:35 am-7:40 am

1 stop33h 50m

$1,243

Washington, D.C.Kathmandu

DCA - KTM

DCAKTM

Washington, D.C. Reagan-National

Mon 5/5

11:55 am-9:45 pm

2 stops48h 05m

Kathmandu Tribhuvan

Mon 6/9

11:00 pm-7:50 am

2 stops42h 35m

$1,305

BaltimoreKathmandu

BWI - KTM

BWIKTM

Baltimore/Washington

Thu 5/1

5:45 am-6:30 am

3 stops39h 00m

Kathmandu Tribhuvan

Sun 5/11

11:45 am-11:30 am

3 stops33h 30m

$1,344

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Tue 5/6

11:00 am-4:45 pm

1 stop20h 00m

Kathmandu Tribhuvan

Sun 5/18

10:05 am-3:40 pm

1 stop39h 20m

$1,354

Washington, D.C.Kathmandu

DCA - KTM

DCAKTM

Washington, D.C. Reagan-National

Tue 9/30

9:00 am-9:45 pm

3 stops51h 00m

Kathmandu Tribhuvan

Thu 10/23

11:00 pm-9:55 pm

2 stops32h 40m

$1,538

Washington, D.C.Kathmandu

DCA - KTM

DCAKTM

Washington, D.C. Reagan-National

Wed 9/24

6:55 pm-5:50 pm

2 stops37h 10m

Kathmandu Tribhuvan

Wed 10/29

6:45 pm-8:30 pm

2 stops35h 30m

$1,661

BaltimoreKathmandu

BWI - KTM

BWIKTM

Baltimore/Washington

Wed 4/30

10:59 am-8:50 am

2 stops36h 06m

Kathmandu Tribhuvan

Mon 5/19

10:05 am-10:05 pm

2 stops45h 45m

$1,717

BaltimoreKathmandu

BWI - KTM

BWIKTM

Baltimore/Washington

Mon 5/5

7:26 am-9:45 pm

2 stops52h 34m

Kathmandu Tribhuvan

Mon 6/9

11:00 pm-12:45 pm

2 stops47h 30m

$1,724

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 33 results

Compare providers for flights from Washington, D.C. to Kathmandu

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to Kathmandu in April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
AranGrant	Price Accuracy3 stars	Trust Score*3 stars
Trip.com	Price Accuracy1 star	Trust Score*3 stars
Cheapfaremart	Price Accuracy-	Trust Score*1 star
Mytrip	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Washington, D.C.-Kathmandu flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Washington, D.C.-Kathmandu flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Kathmandu flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C.-Kathmandu flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-Kathmandu flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Washington, D.C. to Kathmandu

Have a flexible travel schedule? Discover the best time to fly to Kathmandu from Washington, D.C. with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Kathmandu

How far ahead should I book a flight from Washington, D.C. to Kathmandu?

The best time to book flights from Washington, D.C. to Kathmandu is 8 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Washington, D.C. to Kathmandu?

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to Kathmandu (average of $1,237). Flying from Washington, D.C. to Kathmandu in June is currently the most expensive (average of $1,960). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WAS to KTM?

It’s typically best to fly out from Washington, D.C. to Kathmandu in the morning. Doing so could potentially save you 27% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Washington, D.C. to Kathmandu?

Travelers seeking maximum savings on their Washington, D.C. to Kathmandu flight should consider departing on Wednesday mornings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Kathmandu by month

In terms of precipitation, rainfall in Kathmandu ranges from 0.0 - 14.6 inches per month. July is typically the wettest month, when rainfall can reach 14.6 in. November is typically the driest time to visit Kathmandu when rainfall is around 0.0 in.

Temperature in Kathmandu by month

If weather is an important factor for your trip to Kathmandu, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 50.0 F).

Reviews of airlines servicing Kathmandu

Read through reviews of airlines operating flights from Washington, D.C. to Kathmandu, such as Korean Air, Singapore Airlines and Emirates. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Korean Air

8.4

Very good

1,062 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Korean Air

8.4

Very good

1,062 reviews

Korean Air

8.4

Very good

1,062 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Singapore Airlines

8.1

Very good

1,290 reviews

Korean Air

8.4

Very good

1,062 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Emirates

8.0

Very good

3,205 reviews

Korean Air

8.4

Very good

1,062 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Cathay Pacific

7.5

Good

850 reviews

Korean Air

8.4

Very good

1,062 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

SWISS

7.5

Good

1,582 reviews

Korean Air

8.4

Very good

1,062 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Related info for your journey

What airport do you fly into for flights to Kathmandu from Washington, D.C.?
If you book a flight to Kathmandu from Washington, D.C., you will be flying to Tribhuvan, which is the city’s only airport. Kathmandu Tribhuvan (KTM) is located 2.5 mi from the center of Kathmandu. There are 0 flights from Washington, D.C. to Tribhuvan per day from 8 different airlines.
What are the cheapest airlines flying from Washington, D.C. to Kathmandu round-trip?
IndiGo, at $1,206, was found to be the cheapest airline from Washington, D.C. to Kathmandu.Alternate airlines to your destination round-trip include Air India and Cathay Pacific. You may be able to fly from Washington, D.C. to Kathmandu for 20% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Washington, D.C. to Kathmandu one-way?
For one-way options, check prices for Air India. According to our data, you can fly for as low as $465. Users have also found prices from $505 and $660 on IndiGo and Cathay Pacific, respectively.
What are the most popular routes from Washington, D.C. to Kathmandu?
When deciding which route to take from Washington, D.C. to Kathmandu consider Washington, D.C. Dulles Intl - Kathmandu Tribhuvan, Washington, D.C. Reagan-National - Kathmandu Tribhuvan or Baltimore/Washington - Kathmandu Tribhuvan as they are the most popular.
Where are the most common layover locations when flying from Washington, D.C. to Kathmandu?
Most of the time, Washington, D.C. to Kathmandu flights that have layovers will stop in Doha. New Delhi sees the next most layovers on Washington, D.C. to Kathmandu flights.
What are some popular things to do or see while on a layover in Doha?
Doha travelers tend to visit Museum of Islamic Art, Katara Cultural Village, and Aspire Tower more than anywhere else. Museum of Islamic Art, Katara Cultural Village, and Aspire Tower are located about 5.2 mi, 8.7 mi, and 10.6 mi, respectively from Doha Hamad Intl. Travelers can book a car rental at Doha Hamad Intl for about $27 per day to make their sightseeing more efficient.
What are some popular points of interest to see during a layover in New Delhi?
Most New Delhi visitors opt to spend their time at Karol Bagh, Lajpat Nagar Central Market, and Gurudwara Bangla Sahib. Karol Bagh, Lajpat Nagar Central Market and Gurudwara Bangla Sahib are located about 8.7 mi, 8.7 mi, and 8.2 mi, respectively from New Delhi Indira Gandhi Intl if you are interested in checking them out. Travelers in need of a car in New Delhi can rent one for about $74 per day.
Where are the least popular layover locations for Washington, D.C. to Kathmandu flights?
The least popular layover on flights from Washington, D.C. to Kathmandu is Istanbul.
Can I find deals for flights from Washington, D.C. to Kathmandu that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to Kathmandu flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to Kathmandu?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Kathmandu.
Can I find deals for business class flights from Washington, D.C. to Kathmandu?
Yes. Cheapflights offers flight deals from Washington, D.C. to Kathmandu by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Washington, D.C. to Kathmandu?
Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to Kathmandu (average of $1,237). Flying from Washington, D.C. to Kathmandu in June is currently the most expensive (average of $1,960). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 7 airlines flying from Washington, D.C. to Kathmandu

Airline	Cheapest	Average	Flexibility	On-time
Air India	Cheapest$1,019	Average$1,416	FlexibilityNo cancel fee	On-timeN/A
Qatar Airways	Cheapest$1,132	Average$1,640	FlexibilityNo cancel fee	On-time68%
KLM	Cheapest$1,135	Average$1,210	FlexibilityNo cancel fee	On-time75%
IndiGo	Cheapest$1,180	Average$1,345	FlexibilityNo cancel fee	On-time80%
Turkish Airlines	Cheapest$1,185	Average$1,749	FlexibilityNo cancel fee	On-time77%
Emirates	Cheapest$1,316	Average$1,711	FlexibilityNo cancel fee	On-time75%
SWISS	Cheapest$1,652	Average$1,663	FlexibilityNo cancel fee	On-time79%

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$465+ Cheap flights from Washington, D.C. (WAS) to Kathmandu (KTM)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/3. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapflights Tip: The best prices from Washington, D.C. to Kathmandu Tribhuvan are usually found in September or January, booked 8 days in advance, depart on a Tuesday or Friday and return on a Thursday

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Cheapest flights from Washington, D.C. to KathmanduExplore the most affordable flight options available from Washington, D.C. to Kathmandu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 22, 2025.

Explore the most affordable flight options available from Washington, D.C. to Kathmandu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 22, 2025.

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How far ahead should I book a flight from Washington, D.C. to Kathmandu?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Kathmandu. Price data was last updated on April 18, 2025.

What is the cheapest month to book a flight from Washington, D.C. to Kathmandu?

What is the cheapest time of day to fly from WAS to KTM?

Find hourly flight availability from Washington, D.C. to Kathmandu. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 22, 2025.

What is the cheapest day to fly from Washington, D.C. to Kathmandu?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Kathmandu. Price data was last updated on December 16, 2024.

Rainfall in Kathmandu by month

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Temperature in Kathmandu by month

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Reviews of airlines servicing Kathmandu

Read through reviews of airlines operating flights from Washington, D.C. to Kathmandu, such as Korean Air, Singapore Airlines and Emirates. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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What airport do you fly into for flights to Kathmandu from Washington, D.C.?

What are the cheapest airlines flying from Washington, D.C. to Kathmandu round-trip?

What are the cheapest airlines to fly from Washington, D.C. to Kathmandu one-way?

What are the most popular routes from Washington, D.C. to Kathmandu?

Where are the most common layover locations when flying from Washington, D.C. to Kathmandu?

What are some popular things to do or see while on a layover in Doha?

What are some popular points of interest to see during a layover in New Delhi?

Where are the least popular layover locations for Washington, D.C. to Kathmandu flights?

Can I find deals for flights from Washington, D.C. to Kathmandu that include hotel bookings?

How can I find direct flights from Washington, D.C. to Kathmandu?

Can I find deals for business class flights from Washington, D.C. to Kathmandu?

What is the cheapest month to book a flight from Washington, D.C. to Kathmandu?

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Cheapest flights from Washington, D.C. to Kathmandu
Explore the most affordable flight options available from Washington, D.C. to Kathmandu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 22, 2025.