Back to CalculatorRoute ID: IAH-SYD
Flight Distance from Houston (IAH) to Sydney (Mascot) (SYD)
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
13,836 km8,597 miles • 7,471 NM
Destination Airport
YSSYSYD
Sydney (Mascot), Australia
Sydney Kingsford Smith International Airport
Direct Distance
13,836 km
8,597 Statute Miles
7,471 Nautical Miles
Commercial Flight
16h 47m
Est. non-stop flight duration (~850 km/h cruising speed + buffer)
CO₂ Footprint
1,245 kg
Estimated carbon footprint per economy passenger (~90g CO₂/km)
Initial Heading
247° True
Initial compass bearing towards destination
Estimated Travel Duration by Aircraft Class
Commercial Jet (Boeing 787 / A350)
16h 47m
Speed: ~850 km/h (459 knots)
Business Jet (Gulfstream G650)
15h 32m
Speed: ~920 km/h (496 knots)
Turboprop Aircraft (ATR-72 / Q400)
27h 6m
Speed: ~520 km/h (280 knots)
Passport & Visa Entry Requirements
🇺🇸 United States→🇦🇺 Australia
Allowed Stay90 days
Passport Validity Required6 months
💡 Official Note: Electronic Travel Authority (ETA) required.
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
Sydney Kingsford Smith International Airport (SYD)
- City / Country: Sydney (Mascot), Australia
- ICAO Code: YSSY
- Coordinates: -33.9461°, 151.1770°
- Timezone: Australia/Sydney
- Elevation: 21 ft
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