Back to CalculatorRoute ID: STL-ADL
Flight Distance from St Louis (STL) to Adelaide (ADL)
Comprehensive aviation route data, direct distance, flight duration, CO₂ footprint, passport visa rules and interactive map.
Origin Airport
STLKSTL
St Louis, United States
St. Louis Lambert International Airport
Great Circle Path
15,695 km9,752 miles • 8,475 NM
Destination Airport
YPADADL
Adelaide, Australia
Adelaide International Airport
Direct Distance
15,695 km
9,752 Statute Miles
8,475 Nautical Miles
Commercial Flight
18h 58m
Est. non-stop flight duration (~850 km/h cruising speed + buffer)
CO₂ Footprint
1,413 kg
Estimated carbon footprint per economy passenger (~90g CO₂/km)
Initial Heading
260° True
Initial compass bearing towards destination
Estimated Travel Duration by Aircraft Class
Commercial Jet (Boeing 787 / A350)
18h 58m
Speed: ~850 km/h (459 knots)
Business Jet (Gulfstream G650)
17h 34m
Speed: ~920 km/h (496 knots)
Turboprop Aircraft (ATR-72 / Q400)
30h 41m
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
St. Louis Lambert International Airport (STL)
- City / Country: St Louis, United States
- ICAO Code: KSTL
- Coordinates: 38.7487°, -90.3700°
- Timezone: America/Chicago
- Elevation: 618 ft
Arrival Airport Specs
Adelaide International Airport (ADL)
- City / Country: Adelaide, Australia
- ICAO Code: YPAD
- Coordinates: -34.9475°, 138.5334°
- Timezone: Australia/Adelaide
- Elevation: 20 ft
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