The flight time from Philadelphia, Pennsylvania to Sydney, Australia is:

20 hours, 14 minutes

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Flight map from Philadelphia, PA to Sydney, Australia

Flying time from Philadelphia, PA to Sydney, Australia

The total flight duration from Philadelphia, PA to Sydney, Australia is 20 hours, 14 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 Philadelphia, PA and Sydney, Australia.

The calculation of flight time is based on the straight line flight distance from Philadelphia, PA to Sydney, Australia ("as the crow flies"), which is about 9,869 miles or 15 883 kilometers.

Your trip begins in Philadelphia, Pennsylvania.
It ends in Sydney, Australia.

Your flight direction from Philadelphia, PA to Sydney, Australia is West (-95 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

Philadelphia, Pennsylvania

City: Philadelphia
State: Pennsylvania
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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