Back to CalculatorRoute ID: IAD-KTM
Flight Distance from Dulles (IAD) to Kathmandu (KTM)
Comprehensive aviation route data, direct distance, flight duration, CO₂ footprint, passport visa rules and interactive map.
Origin Airport
IADKIAD
Dulles, United States
Washington Dulles International Airport
Great Circle Path
12,393 km7,701 miles • 6,692 NM
Destination Airport
VNKTKTM
Kathmandu, Nepal
Tribhuvan International Airport
Direct Distance
12,393 km
7,701 Statute Miles
6,692 Nautical Miles
Commercial Flight
15h 5m
Est. non-stop flight duration (~850 km/h cruising speed + buffer)
CO₂ Footprint
1,115 kg
Estimated carbon footprint per economy passenger (~90g CO₂/km)
Initial Heading
16° True
Initial compass bearing towards destination
Estimated Travel Duration by Aircraft Class
Commercial Jet (Boeing 787 / A350)
15h 5m
Speed: ~850 km/h (459 knots)
Business Jet (Gulfstream G650)
13h 58m
Speed: ~920 km/h (496 knots)
Turboprop Aircraft (ATR-72 / Q400)
24h 20m
Speed: ~520 km/h (280 knots)
Passport & Visa Entry Requirements
🇺🇸 United States→🌐 NP
This information is provided for general guidance only and does not replace official verification with an embassy, consulate, or the IATA Travel Centre before you travel.
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Flight Path & Geodetic Arc Map
Great Circle Flight Arc Path
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Departure Airport Specs
Washington Dulles International Airport (IAD)
- City / Country: Dulles, United States
- ICAO Code: KIAD
- Coordinates: 38.9445°, -77.4558°
- Timezone: America/New_York
- Elevation: 312 ft
Arrival Airport Specs
Tribhuvan International Airport (KTM)
- City / Country: Kathmandu, Nepal
- ICAO Code: VNKT
- Coordinates: 27.6966°, 85.3591°
- Timezone: Asia/Kathmandu
- Elevation: 4390 ft
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