Flight Route · International
Houston → Sydney
IAH to SYD
George Bush Intercontinental Airport to Sydney Kingsford Smith Airport: 8,597 miles (13,836 km), about 17h 48m airborne, +15h time-zone shift on arrival.
Distance
8,597 mi
13,836 km
Flight time
17h 48m
block time, approx
Time-zone shift
+15h
Chicago → Sydney
International?
Yes
United States → Australia
IAH–SYD questions, answered
How long is the flight from Houston to Sydney?
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A direct flight from George Bush Intercontinental Airport (IAH) to Sydney Kingsford Smith Airport (SYD) takes approximately 17h 48m. Actual block time varies with aircraft type, winds, and routing.
What is the distance from IAH to SYD?
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The great-circle distance from George Bush Intercontinental Airport to Sydney Kingsford Smith Airport is approximately 8597 miles (13836 kilometers). Actual flown distance varies slightly with the routing assigned by air traffic control.
What is the time difference between Houston and Sydney?
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Sydney is +15h relative to Houston. America/Chicago → Australia/Sydney.
Which airlines fly from IAH to SYD?
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Carriers serving both endpoints include various international and regional carriers. Direct service depends on the specific carrier and season — confirm with your booking source for current schedules.
Is this an international flight?
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Yes. George Bush Intercontinental Airport is in United States, and Sydney Kingsford Smith Airport is in Australia. Travelers should confirm passport, visa, and customs requirements before departure.
Can I track IAH–SYD flights on TripDesk365?
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Yes. TripDesk365 imports your booking confirmations from your inbox, identifies the route, and shows real-time status — gate changes, delays, and live aircraft position. Free for 14 days.
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