1.023 € Cheap Flights from Philadelphia International to Sydney

Compare Philadelphia International to Sydney flight deals

Find the cheapest month or even day of the year to fly to Sydney

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Flight deals from Philadelphia International to Sydney

Looking for a cheap last-minute deal or the best return flight from Philadelphia International Airport to Sydney Airport? If you want to travel next month, return fares start from 1.075 €. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Philadelphia International to Sydney

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Philadelphia International to Sydney flights are currently cheapest in November.

Philadelphia International to Sydney: Alternative routes

Compare routes from Philadelphia International to Sydney below. You may find an airport to fly into that's cheaper, faster, or easier than Sydney.

Philadelphia to Sydney: Flight information

The things to know before you go.
Cheapest flight found1.023 €
Cheapest month to flyAugust

Finding cheap flights from Philadelphia International to Sydney: Frequently asked questions

The best price we found for a return flight from Philadelphia International to Sydney is 1.023 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Philadelphia International to Sydney. But we found flights with one or more stops from 1.023 €.
As of July 2026, there are no flights flying from Philadelphia International to Sydney.
The cheapest month to fly from Philadelphia International to Sydney is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Philadelphia International Airport to Sydney Airport on Tuesday, 25 August 2026.
No airlines currently offer direct flights between Philadelphia International Airport and Sydney Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Sydney but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Sydney is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Frontier Airlines offers the cheapest flight tickets to Sydney.

Travelling from Philadelphia International Airport (PHL) to Sydney Airport (SYD): what you need to know

  • The timezone in Sydney is UTC+11, which is 16 hours ahead of Philadelphia.

  • Your PHL to SYD flight won't wait if you're late, so show up at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're travelling internationally.

  • You'll likely experience longer queues in popular months such as August. Arriving up to four hours in advance for international flights and two hours for a domestic departure is a wise move.

  • If you want to include a stop along the way, just deselect 'Direct flights only' when searching for your ticket from Philadelphia International Airport to Sydney Airport. These are the most popular stopovers between PHL and SYD:

    • Dallas Fort Worth International Airport

    • Los Angeles International Airport

    • Houston George Bush Intercntl. Airport

How to find the cheapest flights from Philadelphia International Airport (PHL) to Sydney Airport (SYD)

  • The lowest price we've found for a one-way Philadelphia International Airport to Sydney Airport flight is 529 €. A return fare right now is 1.023 €. Depending on the availability when you book, these fares can change.

  • To pick up cheap tickets from PHL to SYD, book as early as you can. Airlines typically offer their best fares when flights are first made available.

  • The 'Whole month' search tool shows you the cheapest flights from Philadelphia International Airport to Sydney Airport across the entire month. It's a good way to find a bargain if your travel dates aren't set in stone.

  • You don't need to check back in every day to see if fares have gone down when you set up a Price Alert. We'll notify you as soon as the price changes on cheap flights from PHL to SYD.

  • Tailor your trip using filters. Choose your preferred departure and arrival times, total journey duration and airlines. You can also sort results by 'Cheapest,' 'Best' or 'Fastest' flights from Philadelphia International Airport to Sydney Airport.

Handy information about Philadelphia International Airport (PHL)

  • PHL is located at 8500 Essington Ave.

  • Of the flights that depart from Philadelphia International Airport, 77% arrive on time at their destination.

  • To get to Philadelphia International Airport from central Philadelphia, it'll take around 20 minutes if you're going by car. Of course, this depends on traffic. It's approximately 18 kilometres from the airport to the city centre.

  • Expect a journey time of around 30 minutes when using public transport.

  • Looking for a handy hotel close to PHL? If you've booked an early flight from Philadelphia International Airport to Sydney Airport, these stays will have you moments from check-in:

Arriving at Sydney Airport (SYD)

  • The last thing you want is a long trip to your hotel if you're arriving on a late Philadelphia International Airport to Sydney Airport flight. Check in to one of these accommodation options near SYD instead:

  • Go where the road takes you with a Sydney Airport rental car. Book your wheels from simba car rental, Bargain Car Rentals or Yes Drive and venture far and wide through Sydney and beyond.

  • Booking your vehicle from Sydney Airport around two weeks in advance can help you secure the lowest rate.

Getting from Sydney Airport (SYD) to central Sydney

  • From Sydney Airport, Sydney is approximately 8 kilometres away. It takes around 20 minutes to reach the centre by car.

  • If you're taking public transport, expect a journey of roughly 15 minutes.

When to fly to Sydney Airport (SYD)

  • July is the busiest month for flights from Philadelphia International Airport to Sydney Airport. For a quieter experience, visit Sydney in March.

  • Before locking in your flight from Philadelphia International Airport to Sydney Airport, consider the kind of weather you enjoy. January is the warmest month in Sydney, with temperatures ranging from 17ºC (63ºF) to 32ºC (90ºF).

  • Look for cheap tickets from PHL to SYD in July if you like cooler conditions. Temperatures are at their lowest around then, ranging between 5ºC (41ºF) and 19ºC (66ºF) on average.

Explore more of Australia

  • Sydney is easy to fall in love with, but there are so many other parts of Australia waiting to be discovered. About 241 kilometres south-west of Sydney, a visit to Canberra will keep you on the move. Check out popular attractions like National Gallery of Australia, National Portrait Gallery and Museum of Australian Democracy.

  • Newcastle is another favourite destination in Australia and is around 121 kilometres north-east of Sydney. No trip is complete without a visit to Merewether Beach, Nobbys Beach and Newcastle Beach.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.