
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,055 (Trip.com) |
One-way from | $488 (Trip.com) |
Popular in | June |
Cheapest in | August |
Average price | $1,430 |
Fly from
Fly to
Route
Depart
Return
Washington, D.C.Kathmandu
IAD - KTM
IADKTM
Washington, D.C. Dulles Intl
Mon 5/4
10:55 am-6:55 pm
1 stop22h 15m
Kathmandu Tribhuvan
Fri 5/8
7:55 pm-8:40 am
1 stop22h 30m
Washington, D.C.Kathmandu
IAD - KTM
IADKTM
Washington, D.C. Dulles Intl
Fri 5/8
10:55 am-10:00 pm
1 stop25h 20m
Kathmandu Tribhuvan
Fri 5/22
12:35 am-8:40 am
1 stop41h 50m
Washington, D.C.Kathmandu
IAD - KTM
IADKTM
Washington, D.C. Dulles Intl
Fri 10/2
11:15 am-4:45 pm
1 stop19h 45m
Kathmandu Tribhuvan
Thu 11/19
6:45 pm-8:20 am
1 stop24h 20m
Washington, D.C.Kathmandu
IAD - KTM
IADKTM
Washington, D.C. Dulles Intl
Wed 10/7
11:15 am-5:30 pm
1 stop20h 30m
Kathmandu Tribhuvan
Fri 11/13
9:35 am-3:55 pm
1 stop41h 05m
Washington, D.C.Kathmandu
IAD - KTM
IADKTM
Washington, D.C. Dulles Intl
Thu 9/17
3:10 pm-11:00 pm
2 stops22h 05m
Kathmandu Tribhuvan
Thu 10/8
7:35 am-9:45 am
2 stops35h 55m
Washington, D.C.Kathmandu
IAD - KTM
IADKTM
Washington, D.C. Dulles Intl
Mon 5/4
7:00 am-8:40 am
2 stops39h 55m
Kathmandu Tribhuvan
Fri 5/8
7:10 pm-11:26 pm
2 stops38h 01m
Washington, D.C.Kathmandu
IAD - KTM
IADKTM
Washington, D.C. Dulles Intl
Sun 7/12
10:55 am-11:35 pm
1 stop26h 55m
Kathmandu Tribhuvan
Tue 8/11
9:05 am-8:40 am
1 stop33h 20m
Washington, D.C.Kathmandu
IAD - KTM
IADKTM
Washington, D.C. Dulles Intl
Mon 7/6
10:55 am-11:35 pm
1 stop26h 55m
Kathmandu Tribhuvan
Tue 8/11
9:05 am-8:40 am
1 stop33h 20m
Washington, D.C.Kathmandu
IAD - KTM
IADKTM
Washington, D.C. Dulles Intl
Tue 7/7
3:30 pm-8:05 am
2 stops30h 50m
Kathmandu Tribhuvan
Tue 8/11
9:05 am-8:40 am
1 stop33h 20m
Washington, D.C.Kathmandu
IAD - KTM
IADKTM
Washington, D.C. Dulles Intl
Sat 7/11
3:30 pm-11:35 pm
2 stops46h 20m
Kathmandu Tribhuvan
Tue 8/11
9:05 am-8:40 am
1 stop33h 20m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
Booking 86 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. Dulles Intl Airport to Kathmandu. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Kathmandu (average of $1,210). Flying from Washington, D.C. Dulles Intl Airport to Kathmandu in June is currently the most expensive (average of $1,848). 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.
Doha (DOH) – chosen by Cheapflights users on 66% of 1-stop itineraries from Washington, D.C. Dulles Intl Airport to Kathmandu on Cheapflights.
New Delhi (DEL) is the most affordable 1-stop option, with an average round-trip price of $1,098.
Flights via New Delhi (DEL) have the shortest average one-way travel time for 1-stop routes: 22h 19m.
Flights via New Delhi (DEL) offer the fastest connection on this route, with an average layover time of 4h 39m.
Food
Boarding
Comfort
Crew
Entertainment
Overall
Reviews
Anonymous,Mar 2026
SFO - DXB
Food
Boarding
Comfort
Crew
Entertainment
Overall
Reviews
Anonymous,Mar 2026
SFO - DXB
Food
Boarding
Comfort
Crew
Entertainment
Overall
Reviews
Anonymous,Mar 2026
SFO - DXB
Food
Boarding
Comfort
Crew
Entertainment
Overall
Reviews
Anonymous,Mar 2026
SFO - DXB
Food
Boarding
Comfort
Crew
Entertainment
Overall
Reviews
Anonymous,Mar 2026
SFO - DXB
Food
Boarding
Comfort
Crew
Entertainment
Overall
Reviews
Anonymous,Mar 2026
SFO - DXB
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$556 | Average$1,256 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$823 | Average$1,212 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$1,087 | Average$1,482 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$1,092 | Average$1,299 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$1,242 | Average$1,664 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$1,256 | Average$1,475 | FlexibilityNo cancel fee | On-time68% | |
| Cheapest$1,324 | Average$1,659 | FlexibilityNo cancel fee | On-time79% |