
If you're planning a trip from Los Angeles to Perth, you might be wondering how long it will take to get there. The flight duration from Perth, Australia, to Los Angeles, California, is approximately 19 hours and 10 minutes, including take-off and landing. This estimate is based on an average commercial airliner speed of 500 mph. The straight-line distance between the two cities is about 9,336 miles or 15,024 kilometres.
| Characteristics | Values |
|---|---|
| Flight Duration | 19 hours, 10 minutes |
| Flight Distance | 9,336 miles or 15,024 kilometers |
| Flight Speed | 500 mph or 805 km/h |
| Flight Path | East (72 degrees from North) |
| Time Difference | -15 hours |
| Latitude and Longitude | Los Angeles: 34.052235, -118.243683; Perth: -31.9554, 115.858589 |
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What You'll Learn

Flight duration: 19 hours, 10 minutes
The flight duration from Perth, Australia, to Los Angeles, California, is approximately 19 hours and 10 minutes. This is based on an average commercial flight speed of 500 mph or 805 km/h. The total distance covered during this duration is about 9,336 miles or 15,024 kilometers. This is the distance "as the crow flies," which is a straight-line distance between two points on the Earth's surface.
This flight duration may vary depending on factors such as wind speeds and others. It is essential to consider airport wait times, possible equipment malfunctions, and weather delays when planning a trip. Additionally, the time difference between Perth and Los Angeles should be taken into account, which is typically around 15 hours.
The flight distance between Perth and Los Angeles is a significant one, spanning almost half the planet. The direction of the flight is eastward, with a bearing of 72 degrees from North. This long-haul flight typically requires careful planning due to the distance and time involved.
When considering the flight duration, it's worth noting that the straight-line distance may differ from the actual flight path taken due to factors like wind patterns, aircraft capabilities, and air traffic control.
To calculate the flight duration and distance accurately, tools like flight time calculators and formulas such as Vincenty's formula or the Haversine formula can be utilized. These tools and formulas take into account the Earth's curvature and provide more precise estimates than simpler models.
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Flight distance: 9,336 miles
The distance from Los Angeles, California, to Perth, Australia, is approximately 9,336 miles or 15,024 kilometres. This is the distance by air, often referred to as "as the crow flies".
This distance can be calculated in a few different ways. One method is to use the Haversine formula, which estimates the distance between two points on a sphere. This formula assumes the Earth is a perfect sphere, which simplifies the calculation but may introduce slight inaccuracies.
Another method is Vincenty's formula, which uses an ellipsoidal model of the planet and accounts for the Earth's flattening at the poles, making it more precise than spherical models. This formula calculates the geodesic distance between two points, providing a more accurate representation of the distance on Earth's surface.
The flight distance between Los Angeles and Perth is a significant one, with a flight time of approximately 18 to 19 hours. This long flight duration highlights the vast expanse between these two cities, separated by the vast Pacific Ocean.
When planning a trip between these locations, it is essential to consider not only the flight distance but also the time required for take-off and landing and airport procedures. Additionally, the time difference between Perth and Los Angeles should be factored in, with a 15-hour time gap impacting travel plans and jet lag potential.
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Time difference: -15 hours
The time difference between Perth, Australia, and Los Angeles, California, is quite significant at 15 hours. This means that when it is noon in Perth, the time in Los Angeles would be 9 pm the previous day. Or, to put it another way, if you were in Perth and it was 9 am, it would still be 6 pm the previous evening in Los Angeles. This time difference is a result of the two cities being on opposite sides of the International Date Line, with Perth being one of the most remote cities in the world.
When planning a trip between these two cities, it is important to consider the time difference and how it might affect your travel plans and jet lag. For example, if you are flying from Los Angeles to Perth, you will be travelling east, which means losing time. So, even though the flight duration may be around 19 hours, the time change will make it feel like a much longer journey. Conversely, if you are flying from Perth to Los Angeles, you will be travelling west and gaining time, which can make the journey feel slightly shorter.
The time difference can also impact your daily routines and activities when visiting or living in either of these cities. For instance, if you are used to working regular business hours in Los Angeles and then travel to Perth, the time difference will shift your entire schedule. Activities that you associate with a certain time of day will need to be adjusted. A morning jog in Los Angeles might become an evening run in Perth, and a sunset dinner in Los Angeles could translate to a sunrise breakfast in Perth.
Additionally, the time difference can affect your communication and coordination with people in the other city. If you need to schedule a call or meeting with someone in the other time zone, you will need to carefully consider the time difference to find a suitable time for both parties. The 15-hour gap can make it challenging to find overlapping work hours, and you may need to be flexible and adaptable to accommodate the other person's schedule.
Understanding the time difference between Perth and Los Angeles is crucial for effective planning and can help you make the most of your time in these locations, whether you are travelling for leisure or business. The significant time disparity highlights the geographical distance between the two cities and underscores the vast expanse between them.
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Flight direction: East (72 degrees from North)
The flight direction from Los Angeles, California, to Perth, Australia, is eastwards, 72 degrees from North. This is based on the assumption that you are travelling directly from one city to the other, without any stops or connections.
The distance between these two cities is approximately 9,336 miles or 15,024 kilometres. This is what is known as the
The flight time from Perth to Los Angeles is approximately 19 hours and 10 minutes, including 30 minutes for take-off and landing. This is based on an average flight speed of 500 mph or 805 km/h. However, actual flight times may vary depending on factors such as wind speed, airport wait times, and equipment or weather delays.
The time difference between Perth and Los Angeles is 15 hours. For example, when it is 11:04 am on May 17, 2025, in Perth, it is 8:04 pm on May 16, 2025, in Los Angeles.
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Calculation methods: Vincenty algorithm, WGS84 ellipsoid model, Haversine formula
The Haversine formula is used to determine the great-circle distance between two points on a sphere given their longitudes and latitudes. It is a special case of the more general formula in spherical trigonometry, the law of haversines, which relates the sides and angles of spherical triangles. The formula allows the haversine of θ to be computed directly from the latitude and longitude of two points. The Haversine formula is important in navigation and can be used to find the approximate distance between two points on Earth.
Vincenty's formulae, on the other hand, are two related iterative methods used in geodesy to calculate the distance between two points on the surface of a spheroid. Developed by Thaddeus Vincenty in 1975, these formulae are based on the assumption that the figure of the Earth is an oblate spheroid. As a result, they are more accurate than methods that assume a spherical Earth, such as the great-circle distance. Vincenty aimed to express existing algorithms for geodesics on an ellipsoid in a more concise form to minimize program length. His unpublished report in 1975 mentions the use of a Wang 720 desk calculator, which had limited memory. Vincenty's formulae have been widely used in geodesy and are accurate to within 0.5 mm (0.020 in) on the Earth ellipsoid.
The World Geodetic System (WGS) is a standard used in cartography, geodesy, and satellite navigation, including GPS. The current version, WGS 84, defines an Earth-centred, Earth-fixed coordinate system and a geodetic datum. It also describes the associated Earth Gravitational Model (EGM) and World Magnetic Model (WMM). WGS 84 is maintained by the United States National Geospatial-Intelligence Agency. The WGS has undergone several improvements over the years, including the development of the WGS 66 Ellipsoid, which was produced using additional data and improved techniques.
To calculate the distance between Los Angeles and Perth, Australia, one could use either the Haversine formula or Vincenty's formulae, both of which are suitable for determining distances between two points on a sphere or spheroid, respectively.
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Frequently asked questions
The distance between the two cities is approximately 9,336 miles or 15,024 kilometres.
The flight time between Los Angeles and Perth is approximately 18 hours and 9 minutes, assuming an average commercial airliner speed of 500 mph.
The time difference between Perth and Los Angeles is -15 hours. When it is 11:00 AM in Perth, it is 8:00 PM of the previous day in Los Angeles.
The flight path between Perth and Los Angeles is an easterly direction, 72 degrees from North.
There are several ways to calculate the distance, including Vincenty's formula and the Haversine formula. Vincenty's formula is more accurate as it accounts for the Earth's flattening at the poles, while the Haversine formula assumes a perfect sphere.











































