The flight time from Houston, Texas to Sydney, Australia is:

17 hours, 40 minutes

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Flight map from Houston, TX to Sydney, Australia

Flying time from Houston, TX to Sydney, Australia

The total flight duration from Houston, TX to Sydney, Australia is 17 hours, 40 minutes.

This assumes an average flight speed for a commercial airliner of 500 mph, which is equivalent to 805 km/h or 434 knots. It also adds an extra 30 minutes for take-off and landing. Your exact time may vary depending on wind speeds.

If you're planning a trip, remember to add more time for the plane to taxi between the gate and the airport runway. This measurement is only for the actual flying time. You should also factor in airport wait times and possible equipment or weather delays. If you're trying to figure out what time you'll arrive at the destination, you may want to see if there's a time difference between Houston, TX and Sydney, Australia.

The calculation of flight time is based on the straight line flight distance from Houston, TX to Sydney, Australia ("as the crow flies"), which is about 8,585 miles or 13 817 kilometers.

Your trip begins in Houston, Texas.
It ends in Sydney, Australia.

Your flight direction from Houston, TX to Sydney, Australia is Southwest (-113 degrees from North).

The flight time calculator measures the average flight duration between points. It uses the great circle formula to compute the travel mileage.


find a flight to Sydney, Australia

Houston, Texas

City: Houston
State: Texas
Country: United States
Category: cities

Sydney, Australia

City: Sydney
State: New South Wales
Country: Australia
Category: cities

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Flight time calculator

TravelMath provides an online flight time calculator for all types of travel routes. You can enter airports, cities, states, countries, or zip codes to find the flying time between any two points. The database uses the great circle distance and the average airspeed of a commercial airliner to figure out how long a typical flight would take. Find your travel time to estimate the length of a flight between airports, or ask how long it takes to fly from one city to another.

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