$531+ Cheap flights from Dulles Intl (IAD) to Kathmandu (KTM)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — KTM
Oct 10 — Oct 171
Round-trip
1 adult, Economy
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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
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Dulles Intl to Kathmandu
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Cheapest flights from Dulles Intl to KathmanduExplore the most affordable flight options available from Dulles Intl to Kathmandu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
Explore the most affordable flight options available from Dulles Intl to Kathmandu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
This Trip.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/243:10 pm -
2 stops23h 10m
Thu 11/51:45 pm -
2 stops54h 05m
Deal found 9/8![Multiple Airlines logo]()
$1,077
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/133:10 pm -
3 stops32h 55m
Wed 9/2310:50 am -
3 stops32h 40m
Deal found 9/9![Multiple Airlines logo]()
$1,094
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/233:10 pm -
3 stops29h 40m
Sat 9/263:10 pm -
2 stops28h 20m
Deal found 9/9![Multiple Airlines logo]()
$1,112
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/173:10 pm -
3 stops29h 40m
Fri 9/2510:05 am -
3 stops33h 25m
Deal found 9/9![Multiple Airlines logo]()
$1,138
This Indian Eagle deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/123:10 pm -
2 stops29h 40m
Mon 9/287:35 am -
2 stops35h 55m
Deal found 9/8![Multiple Airlines logo]()
$1,140
This Indian Eagle deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/113:10 pm -
2 stops23h 10m
Fri 9/186:30 am -
2 stops37h 20m
Deal found 9/9![Multiple Airlines logo]()
$1,141
This Indian Eagle deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/113:10 pm -
2 stops23h 10m
Fri 9/256:30 am -
2 stops37h 00m
Deal found 9/5![Multiple Airlines logo]()
$1,147
This Mytrip deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/143:10 pm -
2 stops23h 10m
Tue 9/225:30 pm -
2 stops26h 00m
Deal found 9/6![Multiple Airlines logo]()
$1,155
This Mytrip deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/103:10 pm -
3 stops32h 10m
Thu 9/173:10 pm -
2 stops28h 20m
Deal found 9/8![Multiple Airlines logo]()
$1,165
Best flights from Dulles Intl to KathmanduDiscover carefully curated flight deals from Dulles Intl to Kathmandu that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
Discover carefully curated flight deals from Dulles Intl to Kathmandu that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
This Turkish Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/309:20 pm -
1 stop27h 15m
Tue 2/2312:45 pm -
1 stop41h 25m
Deal found 9/9![Turkish Airlines logo]()
$1,511
This Emirates deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/310:30 am -
1 stop21h 25m
Sun 2/213:00 pm -
1 stop27h 55m
Deal found 9/9![Emirates logo]()
$1,547
This Qatar Airways deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/304:59 pm -
2 stops28h 36m
Sun 2/216:45 pm -
1 stop31h 55m
Deal found 9/9![Qatar Airways logo]()
$1,816
This SWISS deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/26:20 pm -
3 stops49h 30m
Mon 2/229:40 pm -
3 stops28h 10m
Deal found 9/9![SWISS logo]()
$1,942
This Korean Air deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/187:05 am -
2 stops48h 25m
Tue 11/247:25 pm -
2 stops32h 48m
Deal found 9/10![Korean Air logo]()
$2,014
This Singapore Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/256:30 pm -
2 stops40h 35m
Sun 2/2810:55 pm -
3 stops53h 20m
Deal found 9/9![Multiple Airlines logo]()
$2,265
This Cathay Pacific deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/17:09 pm -
2 stops39h 36m
Wed 3/3111:00 pm -
2 stops39h 45m
Deal found 9/5![Cathay Pacific logo]()
$2,307
This Qatar Airways deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/38:05 pm -
1 stop27h 00m
Wed 3/316:00 pm -
1 stop31h 25m
Deal found 9/5![Qatar Airways logo]()
$1,882
This Qatar Airways deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/148:05 pm -
1 stop25h 30m
Mon 1/116:45 pm -
1 stop31h 55m
Deal found 9/6![Qatar Airways logo]()
$1,953
This Turkish Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/179:20 pm -
1 stop27h 15m
Sat 1/1612:45 pm -
1 stop33h 45m
Deal found 9/7![Turkish Airlines logo]()
$2,241
This Singapore Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/146:30 pm -
2 stops40h 35m
Sun 2/2110:55 pm -
3 stops53h 20m
Deal found 9/5![Multiple Airlines logo]()
$2,410
Last-minute flights from Dulles Intl to KathmanduDiscover last-minute flight deals from Dulles Intl to Kathmandu. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Kathmandu. Data last updated September 10, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/103:10 pm -
3 stops32h 10m
Thu 9/173:10 pm -
2 stops28h 20m
Deal found 9/8![Multiple Airlines logo]()
$1,165
This Indian Eagle deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/113:10 pm -
2 stops23h 10m
Fri 9/186:30 am -
2 stops37h 20m
Deal found 9/9![Multiple Airlines logo]()
$1,141
This Indian Eagle deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/113:10 pm -
2 stops23h 10m
Fri 9/256:30 am -
2 stops37h 00m
Deal found 9/5![Multiple Airlines logo]()
$1,147
This Indian Eagle deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/123:10 pm -
2 stops29h 40m
Mon 9/287:35 am -
2 stops35h 55m
Deal found 9/8![Multiple Airlines logo]()
$1,140
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/133:10 pm -
3 stops32h 55m
Wed 9/2310:50 am -
3 stops32h 40m
Deal found 9/9![Multiple Airlines logo]()
$1,094
This Mytrip deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/143:10 pm -
2 stops23h 10m
Tue 9/225:30 pm -
2 stops26h 00m
Deal found 9/6![Multiple Airlines logo]()
$1,155
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/173:10 pm -
3 stops29h 40m
Fri 9/2510:05 am -
3 stops33h 25m
Deal found 9/9![Multiple Airlines logo]()
$1,138
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/233:10 pm -
3 stops29h 40m
Sat 9/263:10 pm -
2 stops28h 20m
Deal found 9/9![Multiple Airlines logo]()
$1,112
This Trip.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/243:10 pm -
2 stops23h 10m
Thu 11/51:45 pm -
2 stops54h 05m
Deal found 9/8![Multiple Airlines logo]()
$1,077
One-way flights from Dulles Intl to KathmanduSearch for one-way flight options from Dulles Intl to Kathmandu. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
Search for one-way flight options from Dulles Intl to Kathmandu. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/233:10 pm -
3 stops39h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$531
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/243:10 pm -
2 stops23h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$532
This Mytrip deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/153:10 pm -
2 stops23h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$533
This Trip.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/282:35 pm -
2 stops42h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$544
This Mytrip deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/213:10 pm -
3 stops32h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$555
This Kiwi.com deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/209:05 am -
3 stops42h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$559
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/273:10 pm -
3 stops32h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$563
This Kiwi.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/193:10 pm -
2 stops37h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$568
Find flight deals from Dulles Intl to Kathmandu
Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Kathmandu (KTM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,077 (Trip.com) |
One-way from | $531 (Kiwi.com) |
Popular in | June |
Cheapest in | August |
Average price | $1,443 |
Cheapflights Fare Finder
Customize your flight search to find flights from Dulles Intl 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, Cheapflights users made 7,457,451 searches. Data last updated September 10, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Kathmandu that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Washington, D.C.Kathmandu
IAD Washington, D.C. Dulles Intl - KTM Kathmandu Tribhuvan
IADKTM
Washington, D.C. Dulles Intl
Wed 9/23
3:10 pm-6:35 am
3 stops29h 40m
Kathmandu Tribhuvan
Wed 12/31
12:00 am-1:30 pm
Nonstop0h 00m
$531
Quickest round-trip
Washington, D.C.Kathmandu
IAD Washington, D.C. Dulles Intl - KTM Kathmandu Tribhuvan
IADKTM
Washington, D.C. Dulles Intl
Tue 9/15
3:10 pm-12:05 am
2 stops23h 10m
Kathmandu Tribhuvan
Wed 12/31
12:00 am-1:30 pm
Nonstop0h 00m
$533
Washington, D.C.Kathmandu
IAD Washington, D.C. Dulles Intl - KTM Kathmandu Tribhuvan
IADKTM
Washington, D.C. Dulles Intl
Sat 9/19
3:10 pm-6:35 am
3 stops29h 40m
Kathmandu Tribhuvan
Wed 12/31
12:00 am-1:30 pm
Nonstop0h 00m
$571
Washington, D.C.Kathmandu
IAD Washington, D.C. Dulles Intl - KTM Kathmandu Tribhuvan
IADKTM
Washington, D.C. Dulles Intl
Sun 11/1
10:30 am-9:05 am
3 stops35h 50m
Kathmandu Tribhuvan
Wed 12/31
12:00 am-1:30 pm
Nonstop0h 00m
$671
Washington, D.C.Kathmandu
IAD Washington, D.C. Dulles Intl - KTM Kathmandu Tribhuvan
IADKTM
Washington, D.C. Dulles Intl
Fri 10/9
3:10 pm-8:15 pm
2 stops43h 20m
Kathmandu Tribhuvan
Wed 12/31
12:00 am-1:30 pm
Nonstop0h 00m
$679
Washington, D.C.Kathmandu
IAD Washington, D.C. Dulles Intl - KTM Kathmandu Tribhuvan
IADKTM
Washington, D.C. Dulles Intl
Tue 1/26
6:00 am-4:10 pm
2 stops23h 25m
Kathmandu Tribhuvan
Wed 12/31
12:00 am-1:30 pm
Nonstop0h 00m
$729
Washington, D.C.Kathmandu
IAD Washington, D.C. Dulles Intl - KTM Kathmandu Tribhuvan
IADKTM
Washington, D.C. Dulles Intl
Thu 1/28
6:00 am-4:10 pm
2 stops23h 25m
Kathmandu Tribhuvan
Wed 12/31
12:00 am-1:30 pm
Nonstop0h 00m
$729
Washington, D.C.Kathmandu
IAD Washington, D.C. Dulles Intl - KTM Kathmandu Tribhuvan
IADKTM
Washington, D.C. Dulles Intl
Sat 10/24
11:05 am-11:30 pm
2 stops26h 40m
Kathmandu Tribhuvan
Wed 12/31
12:00 am-1:30 pm
Nonstop0h 00m
$756
Washington, D.C.Kathmandu
IAD Washington, D.C. Dulles Intl - KTM Kathmandu Tribhuvan
IADKTM
Washington, D.C. Dulles Intl
Tue 10/6
6:45 am-12:05 am
2 stops31h 35m
Kathmandu Tribhuvan
Wed 12/31
12:00 am-1:30 pm
Nonstop0h 00m
$784
Washington, D.C.Kathmandu
IAD Washington, D.C. Dulles Intl - KTM Kathmandu Tribhuvan
IADKTM
Washington, D.C. Dulles Intl
Wed 10/7
10:40 pm-12:05 am
2 stops39h 40m
Kathmandu Tribhuvan
Wed 12/31
12:00 am-1:30 pm
Nonstop0h 00m
$784
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Dulles Intl to Kathmandu
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Kathmandu in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Kathmandu flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Kathmandu flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Kathmandu flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Kathmandu flights, Cheapflights users trust FlightHub the most. FlightHub 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. Dulles Intl Airport-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 Dulles Intl to Kathmandu
Have a flexible travel schedule? Discover the best time to fly to Kathmandu from Dulles Intl with our price prediction graph.
IAD-KTM
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. Dulles Intl Airport to Kathmandu
Prices
More
How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Kathmandu?
Booking 50 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.
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Kathmandu?
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 $1,961). 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.
How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Kathmandu?
Airfare is below average for this route at the moment.
Washington, D.C. Dulles Intl Airport to Kathmandu flights typically cost between $1,395 and $1,512 in September.The cheapest round-trip price found within the last 5 days was $1,077 on Multiple Airlines (Sep 24-Nov 5).
What’s the top layover airport for flights from Washington, D.C. Dulles Intl Airport to Kathmandu?
Share of 1-stop round-trip flights from Washington, D.C. Dulles Intl Airport to Kathmandu chosen by Cheapflights users in the past 12 months, using the same layover each way.
Doha (DOH) – chosen by Cheapflights users on 77% of 1-stop itineraries from Washington, D.C. Dulles Intl Airport to Kathmandu on Cheapflights.
What’s the cheapest layover airport for flights from Washington, D.C. Dulles Intl Airport to Kathmandu?
Average round-trip fare for 1-stop flights from Washington, D.C. Dulles Intl Airport to Kathmandu, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Abu Dhabi (AUH) is the most affordable 1-stop option, with an average round-trip price of $1,112.
What’s the fastest layover option from Washington, D.C. Dulles Intl Airport to Kathmandu?
Shortest average travel time for 1-stop one-way flights from Washington, D.C. Dulles Intl Airport to Kathmandu, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Doha (DOH) have the shortest average one-way travel time for 1-stop routes: 21h 28m.
Which airport typically offers the quickest layover for flights from Washington, D.C. Dulles Intl Airport to Kathmandu?
Average layover duration for 1-stop one-way flights from Washington, D.C. Dulles Intl Airport to Kathmandu, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Doha (DOH) offer the fastest connection on this route, with an average layover time of 5h 22m.
Reviews of airlines servicing Kathmandu
Get insights into the airlines that provide service to Kathmandu. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Kathmandu. Reviews last updated September 10, 2026.
Read reviews from past customers who have flown Emirates,Qatar Airways, andTurkish Airlines from Washington, D.C. Dulles Intl Airport to Kathmandu. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Overall
8.1
Crew
8.4
Boarding
8.1
Food
7.9
Entertainment
8.2
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SFO - DXB
Comfort
8.0
Overall
8.1
Crew
8.4
Boarding
8.1
Food
7.9
Entertainment
8.2
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SFO - DXB
Comfort
8.0
Overall
8.1
Crew
8.4
Boarding
8.1
Food
7.9
Entertainment
8.2
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SFO - DXB
Comfort
8.0
Overall
8.1
Crew
8.4
Boarding
8.1
Food
7.9
Entertainment
8.2
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SFO - DXB
Comfort
8.0
Overall
8.1
Crew
8.4
Boarding
8.1
Food
7.9
Entertainment
8.2
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SFO - DXB
Comfort
8.0
Overall
8.1
Crew
8.4
Boarding
8.1
Food
7.9
Entertainment
8.2
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SFO - DXB
Related info for your journey
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Top 6 airlines flying from Dulles Intl to Kathmandu
Discover the top 6 airlines that operate flights from Dulles Intl to Kathmandu. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$489 | Average$1,014 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$1,057 | Average$1,442 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$1,108 | Average$1,687 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$1,150 | Average$1,478 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$1,238 | Average$1,484 | FlexibilityNo cancel fee | On-time68% | |
| Cheapest$1,638 | Average$1,734 | FlexibilityNo cancel fee | On-time79% |