Find Cheap Flights from Washington to Kathmandu Tribhuvan (WAS - KTM)

Search hundreds of travel sites at once for deals on flights to Kathmandu Tribhuvan

Sat 12/16
Sat 12/23
Any month
Compare vs. KAYAK |

Good to Know

Low Season:
February
Best time to beat the crowds
2%
expected price decrease
High Season:
July
Most popular time to fly
11%
expected price increase
Average Price:
$1337
(avg. price over the last 2 weeks)
Good Deal:
$1029
or less (round trip)

When to Book Flights from Washington to Kathmandu Tribhuvan

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $1028 or less.
The cheapest flight from Washington to Kathmandu Tribhuvan was found 50 days before departure, on average.
Book at least 4 weeks before departure in order to get a below-average price.
High season is considered to be June, July and August. The cheapest month to fly is February.
Morning departure is around 20% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Washington to Kathmandu Tribhuvan Flights

How long does a flight from Washington to Kathmandu Tribhuvan take?
An average nonstop flight takes 21h 35m, covering a distance of 7696 miles.
Which airlines provide the cheapest flights from Washington to Kathmandu Tribhuvan?
In the past 3 days, the cheapest round-trip tickets were found on Turkish Airlines ($817), Multiple Airlines ($851) and Singapore Airlines ($918).
Do I need a passport to fly between Washington and Kathmandu Tribhuvan?
Yes.
What’s the cheapest day of the week to fly Washington to Kathmandu Tribhuvan?
For Washington to Kathmandu Tribhuvan, Wednesday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Kathmandu Tribhuvan back to Washington, the best deals are generally found on Friday, with Sunday being the most expensive.

Book cheap flights from Washington to Kathmandu Tribhuvan (round-trip)

Airports
Origin
Washington
$817
only
$817
$918
only
$918
Destination
Kathmandu
$817
only
$817
Wed, Jan 31
IAD
KTM
25h 45m
Wed, Feb 28
KTM
IAD
41h 00m
Trip: 29 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 16958 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
8.0
YYZ
IST
Excellent 10.0

Luggage policy, helpful ground and air crew. Price.

IST stoppover, damaged luggages.

IST
SFO
Excellent 10.0

One of my fave airlines now Great seats, services, staff Turkish coffee in the air!

they keep the cabin a bit too hot, need to ask them all the time to make it colder

JNB
IST
Excellent 10.0

I'm 6 ft 2. Legspace was adequate, and no silly boxes under the seats like other airlines that obstruct your feet. Great entertainment systems - modern, good selection. Food and staff excellent.

Their online checkin systems could operate a bit more smoothly. At one point, I had to go in in person, because the online checkin site had an already past flight from their codeshare partner SAS showing up as the next flight, and I couldn't perform online checkin as a result.

EDI
IST
Good 6.3

Crew

Boarding status changed straight from pre boarding to last call. No AC

IST
TLV
Good 6.0

No AC

Wed, Jan 31
IAD
KTM
57h 52m
Fri, Mar 9
KTM
IAD
40h 03m
Trip: 38 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Mar 7
DCA
KTM
49h 25m
Wed, Mar 28
KTM
DCA
41h 37m
Trip: 21 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 2066 reviews
Overall
8.8
Boarding
8.9
Comfort
8.6
Crew
9.0
Entertainment
8.7
Food
8.4
SYD
SIN
Excellent 9.0

The cabin was quite warm

SIN
SFO
Excellent 9.6

I loved the professionalism of the crew, and how they treat the passengers with such care. I prefer Singapore airlines over any other. Seats are very comfortable. This craft had touch screen monitors that worked well. I was able to use my own ear buds by pulling the jack out part way.

I really only have one gripe. I wish there were more movie choices for adults that did not have foul language and immoral scenes.

DXB
SIN
Good 6.0

My first flight (DXB - SIN) was delayed and so my bag didn't make it onto the second flight (SIN - CNS)

SFO
SIN
Good 7.6

The service crew served us well. They are friendly and helpful

Too many Indian movies

SIN
SFO
Excellent 8.0

great service

too long

Thu, Dec 28
IAD
KTM
27h 45m
Sat, Jan 20
KTM
IAD
30h 05m
$1186
Trip: 24 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 6459 reviews
Overall
8.3
Boarding
8.3
Comfort
8.1
Crew
8.6
Entertainment
8.2
Food
7.9
LHE
DOH
Excellent 8.6

There's not food which was on menu I did not eat

ATL
DOH
Excellent 10.0

The crew service

The cost of internet access

LAX
DOH
Excellent 8.0

Everything was fine except the flight delays

Flight delays

DOH
BAI
Excellent 10.0

Very Good Company

DOH
ATH
Excellent 10.0

The crew service

The cost of internet access

Thu, Feb 8
IAD
KTM
29h 10m
Wed, Mar 7
KTM
IAD
41h 00m
Trip: 28 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Feb 10
IAD
KTM
25h 45m
Thu, Feb 15
KTM
IAD
41h 00m
Trip: 6 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 16958 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
8.0
JNB
IST
Excellent 10.0

I'm 6 ft 2. Legspace was adequate, and no silly boxes under the seats like other airlines that obstruct your feet. Great entertainment systems - modern, good selection. Food and staff excellent.

Their online checkin systems could operate a bit more smoothly. At one point, I had to go in in person, because the online checkin site had an already past flight from their codeshare partner SAS showing up as the next flight, and I couldn't perform online checkin as a result.

YYZ
IST
Excellent 10.0

Luggage policy, helpful ground and air crew. Price.

IST stoppover, damaged luggages.

IST
LOS
Mediocre 2.0

To be honest nothing really.

Quality of service and quality of plane. Seems most of the flight attendants could care less about the flight passengers.

JFK
IST
Excellent 9.0

The amazing entertainment system.

The smell of feet, and nausea from turbulence after food (not really Turkish's fault). Also, I'm getting too used to the food by now, and it doesn't seem to change much.

IST
BUD
Excellent 10.0

Same

Same

Mon, Mar 5
IAD
KTM
58h 00m
Fri, Mar 9
KTM
IAD
41h 18m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Jan 26
DCA
KTM
73h 25m
Tue, Jan 30
KTM
DCA
42h 27m
$1026
Trip: 5 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 2066 reviews
Overall
8.8
Boarding
8.9
Comfort
8.6
Crew
9.0
Entertainment
8.7
Food
8.4
BKK
SIN
Excellent 8.0

Boarding ok, timely departure. Food very good for plane food.

Announced early landing but then doing circles without any update, we ended up being 30min late. Updates would have been good.

SIN
SFO
Excellent 10.0

The business class bed was the best I have yet encountered. The food and service were great. And the stews? Gorgeous and so agreeable. One young lady even helped me with my back injury; turns out she was studying physical therapy. You can't find a better ride than that,

JFK
FRA
Okay 4.3

The A380 is an amazing plane. The flight was smooth and the engine sounds were fairly low.

Waiting on line to check in was more than a half hour although there were probably only 10 people ahead of me. Got a hard time on the weight of my carry-on being more than 7kg although I had to point out that my ticket allowed me two bags that were 23kg each - I had nothing to check. Eventually, when I pointed out that I could wear enough of the clothes from the carry on, they agreed to let me take it on. On board, the service was cold, bland and infrequent. The entertainment system lost sound perhaps 20 minutes into the flight.

SIN
HKG
Excellent 10.0

Classy cabin staff

SFO
SIN
Good 7.6

The service crew served us well. They are friendly and helpful

Too many Indian movies

Wed, Apr 18
IAD
KTM
28h 35m
Wed, May 2
KTM
IAD
34h 15m
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Jun 2
IAD
KTM
21h 35m
Mon, Jun 18
KTM
IAD
21h 35m
$1050
Trip: 17 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 16958 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
8.0
VKO
IST
Excellent 10.0

Great flight

Na

JFK
IST
Excellent 9.0

The amazing entertainment system.

The smell of feet, and nausea from turbulence after food (not really Turkish's fault). Also, I'm getting too used to the food by now, and it doesn't seem to change much.

IST
KTM
Mediocre 2.0

I did not like anything.

Everything. I will never book a flight from Kayak from now on. Kayak just charged us a lot of money and did not do anything for us.

EDI
IST
Good 6.3

Crew

Boarding status changed straight from pre boarding to last call. No AC

IST
TLV
Excellent 9.6

Entertainment, and the plane which felt really new and comfy.

Food was a bit boring (because it was such a short flight, I suppose)

Tue, Apr 3
DCA
KTM
29h 20m
Wed, May 30
KTM
DCA
33h 30m
Trip: 58 days
Overall 0.0 Poor
Based on 0 reviews
Wed, May 2
IAD
KTM
30h 05m
Thu, May 17
KTM
IAD
33h 30m
Trip: 16 days
Overall 0.0 Poor
Based on 0 reviews
Show more results
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

^
The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.