Back to CalculatorRoute ID: KTM-OPO
Flight Distance from Kathmandu (KTM) to Porto (OPO)
Comprehensive aviation route data, direct distance, flight duration, CO₂ footprint, passport visa rules and interactive map.
Origin Airport
KTMVNKT
Kathmandu, Nepal
Tribhuvan International Airport
Great Circle Path
8,335 km5,179 miles • 4,501 NM
Destination Airport
LPPROPO
Porto, Portugal
Francisco de Sá Carneiro Airport
Direct Distance
8,335 km
5,179 Statute Miles
4,501 Nautical Miles
Commercial Flight
10h 18m
Est. non-stop flight duration (~850 km/h cruising speed + buffer)
CO₂ Footprint
750 kg
Estimated carbon footprint per economy passenger (~90g CO₂/km)
Initial Heading
309° True
Initial compass bearing towards destination
Estimated Travel Duration by Aircraft Class
Commercial Jet (Boeing 787 / A350)
10h 18m
Speed: ~850 km/h (459 knots)
Business Jet (Gulfstream G650)
9h 34m
Speed: ~920 km/h (496 knots)
Turboprop Aircraft (ATR-72 / Q400)
16h 32m
Speed: ~520 km/h (280 knots)
Passport & Visa Entry Requirements
🌐 NP→🌐 PT
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
Tribhuvan International Airport (KTM)
- City / Country: Kathmandu, Nepal
- ICAO Code: VNKT
- Coordinates: 27.6966°, 85.3591°
- Timezone: Asia/Kathmandu
- Elevation: 4390 ft
Arrival Airport Specs
Francisco de Sá Carneiro Airport (OPO)
- City / Country: Porto, Portugal
- ICAO Code: LPPR
- Coordinates: 41.2481°, -8.6814°
- Timezone: Europe/Lisbon
- Elevation: 228 ft
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