IAD - KTM

$406 Find Cheap Flights from Washington Dulles Airport to Kathmandu

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Kathmandu departing on 7/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Kathmandu.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Kathmandu.
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Cheap Flights from Dulles Intl to Kathmandu (IAD-KTM)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Kathmandu that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Kathmandu

Tue, Sep 2 - Tue, Sep 30
Air India Logo
11:00 am - 8:05 pmIAD-KTM
23h 20m1 stop
Air India Logo
7:35 am - 7:40 amKTM-IAD
33h 50m1 stop
$787Air India
Find Deal
Tue, Sep 16 - Tue, Oct 14
Air India Logo
11:00 am - 8:05 pmIAD-KTM
23h 20m1 stop
Air India Logo
6:30 am - 7:40 amKTM-IAD
34h 55m1 stop
$794Air India
Find Deal
Tue, Sep 2 - Mon, Sep 29
Air India Logo
11:00 am - 9:05 amIAD-KTM
36h 20m1 stop
Air India Logo
7:35 am - 7:40 amKTM-IAD
33h 50m1 stop
$812Air India
Find Deal
Tue, Aug 26 - Mon, Sep 8
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
$822Air India
Find Deal
Thu, Sep 4 - Tue, Sep 30
 Logo
9:40 pm - 8:05 pmIAD-KTM
36h 40m2 stops
 Logo
1:25 pm - 7:45 pmKTM-IAD
40h 05m2 stops
Mon, Sep 8 - Mon, Sep 22
 Logo
9:40 pm - 8:05 pmIAD-KTM
36h 40m2 stops
 Logo
1:25 pm - 11:45 amKTM-IAD
56h 05m2 stops
Mon, Sep 1 - Wed, Sep 17
Emirates Logo
10:55 am - 6:25 pmIAD-KTM
21h 45m1 stop
Emirates Logo
11:55 pm - 8:40 amKTM-IAD
42h 30m1 stop
$1,092Emirates
Find Deal
Wed, Aug 20 - Tue, Feb 17
Emirates Logo
10:55 am - 11:05 pmIAD-KTM
26h 25m1 stop
Emirates Logo
9:20 am - 8:10 amKTM-IAD
33h 35m1 stop
$1,093Emirates
Find Deal
Fri, Aug 8 - Tue, Aug 26
IndiGo Logo
9:40 pm - 3:40 pmIAD-KTM
32h 15m2 stops
IndiGo Logo
4:40 pm - 7:45 pmKTM-IAD
36h 50m2 stops
$1,135IndiGo
Find Deal
Tue, Jul 8 - Tue, Jul 15
IndiGo Logo
1:30 pm - 3:40 pmIAD-KTM
40h 25m2 stops
IndiGo Logo
4:40 pm - 7:45 pmKTM-IAD
36h 50m2 stops
$1,182IndiGo
Find Deal
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KAYAK's insights & trends for Dulles Intl to Kathmandu flights

Get data-powered insights and trends into flights from Dulles Intl to Kathmandu to help you find the cheapest flights, the best time to fly and much more.

Find cheap flights to Kathmandu
Find cheap flights to Kathmandu

Planning a trip from Dulles Intl to Kathmandu? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

What’s the cheapest day of the week to fly from Washington Dulles Airport to Kathmandu?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Kathmandu clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Kathmandu on a Sunday and more expensive on a Thursday. On your return trip to Washington Dulles Airport, you should consider flying back on a Tuesday, and avoid Fridays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Kathmandu, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Kathmandu is September, where tickets cost $1,227 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,981 and $1,682 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Kathmandu, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Kathmandu, you should book around 9 weeks before departure. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonAugust
High seasonOctober
Cheapest flight$406
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Washington Dulles Airport to Kathmandu

When to book flights from Dulles Intl to Kathmandu

Are your dates flexible? Find out the best times to travel from Dulles Intl to Kathmandu based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Kathmandu flights

  • What amenities and services can I enjoy at Washington Dulles International Airport (IAD)?

    While waiting on your plane to leave Washington, D.C., you'll have access to many airport amenities such as charging stations, airline lounges, an interfaith chapel, several restaurants, and ATM machines. How about relaxing before your flight leaves? There is a spa by both Gates A & B.

  • How can I get from Tribhuvan International Airport (KTM) to my hotel?

    Public transportation is limited in Kathmandu. Therefore, a taxi might be your best option for getting to your hotel. At the airport, taxis pick up passengers outside of the arrival hall. You can also arrange for a taxi at the tourist information desk inside the airport.

  • Are there banking services or a currency exchange center at the Tribhuvan International Airport (KTM)?

    Yes, there are several ways that you can conduct financial business while at the airport. If you need to withdraw funds for your trip, there are ATM machines. There are also several bank branches inside the airport where you can get more personal service and/or exchange your US dollars for the Nepalese rupee.

  • Where can I park my car at the Washington Dulles International Airport (IAD)?

    There are several places to park at the Dulle Airport while you're on vacation in Kathmandu. If you'd prefer covered parking, there are a couple of parking garages that are a short walk from the terminal. The economy parking lot is best if you're traveling on a budget. It is right off of Dulles Access Road and a quick drive from the terminal. For your convenience, there is a shuttle that goes back and forth both day and night. Curbside valet service is also available.

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Kathmandu?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Kathmandu was $406 for a one-way ticket and $787 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Kathmandu?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Washington Dulles Airport and on arrival in Kathmandu.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Kathmandu?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington Dulles Airport to Kathmandu?

    Star Alliance, and oneworld are the airline alliances operating flights between Washington Dulles Airport and Kathmandu, with Star Alliance being the most commonly used for this route.

  • What is the most popular layover when flying to Kathmandu from Washington Dulles Airport?

    Doha is the most popular layover city among KAYAK users traveling from Washington Dulles Airport to Kathmandu.

  • Which is the best airline for flights from Washington, D.C. to Kathmandu, Emirates or Qatar Airways?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Kathmandu are Emirates and Qatar Airways. With an average price for the route of $1,709 and an overall rating of 8.1, Emirates is the most popular choice. Qatar Airways is also a great choice for the route, with an average price of $1,448 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Kathmandu?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Kathmandu.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Kathmandu?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Kathmandu from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Kathmandu?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Kathmandu with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and KTM can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Kathmandu?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Kathmandu from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Washington, D.C. Dulles Intl Airport to Kathmandu

  • When booking your flight from Washington Dulles International Airport (IAD), you'll have your choice of flights. You'll have to change planes at least once in a major airport such as Doha Hamad International, Dallas/Fort Worth, Dubai International, or Delhi. Some layovers are as short as 48min.
  • Kathmandu Tribhuvan International Airport (KTM) services Kathmandu City and Kathmandu Valley. It has just two terminals, one for domestic flights and the other for international flights. The airport is about a 10min drive from Kathmandu's city center, 15min to Thamel, and about 16min from Patan.
  • You'll be able to get around Washington Dulles International Airport quickly using its airport transportation system. Known as the Aero Train, it takes passengers from one terminal to another. There are also moving walkways and shuttle service in between stations.
  • To help with your travel plans, there is a tourist information desk at the Kathmandu Tribhuvan Airport (KTM). It offers information about local attractions, accommodations, transportation, and places to eat.
  • If someone is dropping you off at the Washington Dulles International Airport (IAD), there are a few options. If you can get out of the car fast, curbside dropoff is very convenient. If you'll need a little time and don't want to be rushed, the terminal parking lot or one of the garages is ideal. Both provide easy access to the terminals via a covered walkway.

Top 5 airlines serving from Dulles Intl to Kathmandu

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Kathmandu. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Kathmandu? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.1
EmiratesOverall score based on 3264 reviews
8.1Boarding
8.2Entertainment
8.3Crew
7.8Food
8.0Comfort
Airline reviews

Except for the uncleaned tray, and the delay in serving food for our section (which may have been due to the location of our row) everything else was good. The crew were very professional and responded to our requests promptly throughout the flight. We as a family were not disappointed by Emirates.

10.0 ExcellentDaniel, Feb 2025BOS - DXB
Read more Emirates reviews

Except for the uncleaned tray, and the delay in serving food for our section (which may have been due to the location of our row) everything else was good. The crew were very professional and responded to our requests promptly throughout the flight. We as a family were not disappointed by Emirates.

It was great, a little more leg room would have been better particularly since we were in premium economy

The boarding process was smooth and the stewardesses were nice. Some delays with drinks at the end of the flight, but no issues.

Thay crew was so nice.Air hostess il ham was so nice.my mom was little scray with airplan turbulence she help us alot.

Seat 💺 was all the way on last row. Food was okay .

Charged for internet that never really worked. The food selection was just ok.

Boarding, seats, entertainment and service were all great. Food was great except for the fact that there were too many sweet items.

The entire crew went above and beyond. This was our first flight with our 3 month old, and they were accommodating and friendly. The crew is attentive and marks a HIGE difference to the regular runs with Avianca and LATAM.

Business class on this plane was adequate, service, amenities, swag, and crew was amazing!

Airline did not have enough vegetarian meals for all guests, and crew were not adequately trained to handle this.

This trip was the most comfortable one I have ever experienced, the team was excellent and very helpful. I am so glad I picked Qatar Airways.

All the crew members were too slow and rude. Most of the times the registers were empty, while hundreds of customers were waiting in line, and it was impossible to get a supervisor. Despite being in line on time, I missed my freight, plus a some customers who were ahead and behind me.

Well organized boarding, efficient and on time. Nice crew on the plane. Thank you!

The Qatar Airways staff pre-boarding and also on the flight from Dallas to Doha were incredibly mediocre and arrogant. Consider retraining these individuals Other flights were ok.

My experience with Qatar airway was very unsatisfactory. They lost my child’s stroller and I was told they found it and will send it to the hotel which was a lie. I had to go back to the airport baggage claim and pick up myself after trying to contact them many times!. There was a lack professional and communication. I am very disappointed in Qatar airway and will not be recommending them to friends and family nor will I be flying with them in the future.

Worst air experience in whole life . Boarding and checking was hassle as they did 3 times. Crew team was clueless about passengers need. Despite of passengers raising hand , they were resetting the program

The food is not good and also if you ask crew to bring something they say ok I will bring but you will never get it. Please they should listen good to passengers

No difference between US airline and Qatar. Both cramp as many people. The airline seems to change planes without notice choice is seating when making reservations online doesn’t match the plane a passenger is on. Especially paying extra. Nothing special No different than US carriers.

Did not like anything. Seats were crammed, leg space was minimal and food was terrible. This was the first time traveling overseas in American Airlines and was the worst experience ever. Have learned a lesson to never travel in American Airlines.

Delayed my flights and no communication. We end up spending 6 hrs in Doha. No food or any concern from the airline. Terrible

I’ve been traveling for 20 years. I tried Turkish airline for the first time horrible horrible service and it would be my last time even if I get offer for a free ticket, I will not accept it. They have races and the worst Flight attendant

It wasn't good. I didn’t understand. They changed 320 dollars for 2 luggage. My ticket was regular and I paid almost 1200.00 dollars. Why they did charge? I want my money back.. thanks Yılmaz polat

Very punctual, the onboard staff was friendly and correct, the flight was fortunately very calm, the toilets were clean, in short, an excellent experience Thanks

Ordered Vegan meal - it was ok, but not exceptional. Seat ok row 39 middle section aisle. Nearly full flight - crew was busy but they did the best they could. There was a USB A port at the seat. I listened to my own music and only looked at flight information. One nice thing was the connection information was made available in the screen.

Very nice and friendly crew. Boarding system can be improved.

The Etickets had been changed (Why?) without notice ; Hence, that caused troubles when checking in. Not until I contacted my ticket agent and was given correct Etickets could I then check in.

Cleanliness of seats, trays, storage pockets need more attention, but everything else was good.

A great airline, no complaints at all. My experience with Cheap Tickets was very disappointing however. Two hours after purchasing the flight they called to tell me that the ticket price had gone up. I’ve never heard of such a thing. That is called false advertising; I will never use this ticketing service again and will warn all friends to never use it.

One of the worst check in process at the DIA as well as the boarding counter Changed seat at the last minute and assigned middle seat while I paid for window seat. Requested many times but to no avail . horrible customer service and very poor process Requesting refund for seat that was changed last minute

Good overall flight. Excellent crew. Food options could be improved.

Very hard seats. No food service, even though price is not competitive.

Very hard seats for long flights. No food even on International flight. Won't fly Indigo again if I can help it.

Terrible experience at IST airport due to mismanagement by ground and wheelchair staff.

Some seats don’t recline. No USB port or power outlet, no inflight WIFI - not even for SMS/Messaging apps. Ontime performance was very good. They should have at least one crew member who speaks the local language, for flights like these.

Some seats don’t recline. No USB port or power outlet, no inflight WIFI - not even for SMS/Messaging apps. Ontime performance was very good.

Although we took the XL seats with more width, we found that you do not have a seat in front to stow your personal item, nor can you stretch your legs. This is not the best option for a comfortable seat. Boarding was timely but disorganized without any row based entry.

Not professional and didn’t know about double seat even when I paid for it and have a confirmation. Lack of comms between teams.

deboarding is very poor after landing it took around 45 minutes to come out.

My baggage bag got broken and only 3000 voucher was given for compensation

Crew members forgot to serve sandwiches after serving the coffee. Worst was the handling of bag. One of wheel was Broken making it useless. Though a complaint was registered and assured of compensation voucher equal to part cost of the new bag.

Never can get flight and nof light for three days .finally travel by bus. Very bad experience.

Food not of any international or even Indian standard. We have many cuisine available but only paneer & sundry items. Improve & provide some good indian items. Entertainment website or channel out of order.

First and the foremost I was shocked to see airindia standards have come down so low . The food was horrible . They served us 3 meals for vegetarian and all the was paneer . The orange juice was not at all cold it was smelly . After you take this heavy price air India should learn from other air lines . I at one point felt like throwing up . After all this when we landed we were not given landing slip . We had to wait for 45 min at the immigration just because no one was given landing slip . To top it all we were 3 passengers and had checked in 4 check in luggage . Out of which 3 have not yet arrived . Basically status says the loaded it in our flight ( this was a direct fight ) and it never reached . We are still waiting . There is nothing great to tell about our flight . The he only good thing was the crew were very helpful .

Lay out shows 1st row and second row given after taking payment. It's a fraud

The seats were extremely uncomfortable. Air India seats used to be very comfortable . with sufficient legroom. In this aircraft there was no legroom. It is a shame that for your profit margins you are trying to pack people like cattle on these long haul flights. The food was terrible. The bread was hard like a rock. Mr CEO of Air India, why don’t you take a flight in economy from India to USA and experience the hardships first hand. It is utter disgrace

Absolutely nothing. Cold and unpleasant airline staff, and to top it all, the entertainment system was broken. Really harrowing experience.

BAD experience. Entertainment system was not working and most of the passengers had this issue. Staff was not helpful. Meal was yuck. Bad old flights.

Overall good experience. I got first row seats with extra legroom. It does make a difference. Entertainment system was working. However, they kept serving me a VEGAN meal instead of a VEGETERIAN meal. I asked them and showed my tickets that Vegeterian meal is selected but the staff didn't care. VEGAN meal was medicore and not enough to fill tummy. Also unhealthy with butter made from palm oil.

Communication was terrible. Flight was delayed for 4-5 hours in DC (on the front end, and also after we boarded, we had to get off - some issue with fueling the old plane correctly). There was little to no information on timing or what was happening. Once we reach Delhi airspace, apparently there was weather that caused us not to land - we were actually near the ground, saw the run way, and lifted back up to the sky after being sooo close. Then we circled for about 30 minutes, and they decided to go to Jaipur to land until the weather cleared and to refuel. Again, once we landed in Jaipur (wrong city), there was little to no information on timing or what was happening. Then we heard that the crew was reaching their 24 hours. We sat on the place, on the tarmac for another 3 HOURS, with no food and not enough water for everyone on the flight. Then, they kicked us off the plane with no plan, in the wrong city. We went thru customs, got our bags (thank goodness), and had to ask a bunch of staff what was happening and what to do. Eventually, their soltuion was to bus people back to Delhi (like 6 hours we were told) but not everyone would fit on the bus, and unknown timing on when it would leave. At this point it was 9PM (we were scheduled to arrive in Delhi at 11AM...). My husband and I decided to risk it and take a cab that we had to pay ourselves (about $200 US dollars) to get to Delhi (about 5 hour drive). We both had terrible trips back to the US as well - almost missed connecting flight, forced to pay for carry-on luggage (a small back pack!) and duty-free goods by the Air India staff last minute. Just terrible experience all around. Never again with AI! The ONLY good thing was the air hostesses were kind and patient - example: they made sure people with food allergies got their correct.

It would have been perfect if there was onboard entertainment.

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