Back to CalculatorRoute ID: IAH-LKO
Flight Distance from Houston (IAH) to Lucknow (LKO)
Comprehensive aviation route data, direct distance, flight duration, CO₂ footprint, passport visa rules and interactive map.
Origin Airport
IAHKIAH
Houston, United States
George Bush Intercontinental Airport
Great Circle Path
13,693 km8,508 miles • 7,394 NM
Destination Airport
VILKLKO
Lucknow, India
Chaudhary Charan Singh International Airport
Direct Distance
13,693 km
8,508 Statute Miles
7,394 Nautical Miles
Commercial Flight
16h 37m
Est. non-stop flight duration (~850 km/h cruising speed + buffer)
CO₂ Footprint
1,232 kg
Estimated carbon footprint per economy passenger (~90g CO₂/km)
Initial Heading
4° True
Initial compass bearing towards destination
Estimated Travel Duration by Aircraft Class
Commercial Jet (Boeing 787 / A350)
16h 37m
Speed: ~850 km/h (459 knots)
Business Jet (Gulfstream G650)
15h 23m
Speed: ~920 km/h (496 knots)
Turboprop Aircraft (ATR-72 / Q400)
26h 50m
Speed: ~520 km/h (280 knots)
Passport & Visa Entry Requirements
🇺🇸 United States→🌐 IN
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
George Bush Intercontinental Airport (IAH)
- City / Country: Houston, United States
- ICAO Code: KIAH
- Coordinates: 29.9844°, -95.3414°
- Timezone: America/Chicago
- Elevation: 97 ft
Arrival Airport Specs
Chaudhary Charan Singh International Airport (LKO)
- City / Country: Lucknow, India
- ICAO Code: VILK
- Coordinates: 26.7606°, 80.8893°
- Timezone: Asia/Kolkata
- Elevation: 410 ft
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