$467 Cheap Flights from Philadelphia (PHL) to Sydney (SYD)

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Cheap flights from Philadelphia (PHL) to Sydney (SYD)

Prices were available within the past 7 days and start at $467 for one-way flights and $912 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
United
United
Delta
All Nippon Airways
Air New Zealand
Air Canada
American Airlines
Qantas Airways
Fiji Airways
Flight from Philadelphia to Sydney (PHL - SYD) route information
Origin airport
Philadelphia Intl.
Destination airport
Kingsford Smith Intl.
Airlines serving
Air Canada, Air New Zealand, Air Tahiti Nui, All Nippon Airways, American Airlines, British Airways, Cathay Pacific, China Southern Airlines, Delta, Etihad Airways, Fiji Airways, Japan Airlines, Korean Air, Lufthansa, Malaysia Airlines, Qantas Airways, Qatar Airways, United
Roundtrip price
$911
Distance
9868 mi

Philadelphia to Sydney Flights

The cheapest times to fly from Philadelphia to Sydney

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Philadelphia to Sydney are during the month of February. You can find some of the cheapest flights from Philadelphia to Sydney with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Philadelphia to Sydney

Sunday is one of the best days to book for cheap flights from Philadelphia to Sydney: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Philadelphia to Sydney

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Philadelphia to Sydney in 2024. You can also book with separate airlines for your outbound and return journeys, from $467 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Philadelphia to Sydney flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Philadelphia to Sydney airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

Is it cheaper to buy a plane ticket from Philadelphia Intl. Airport (PHL) to SYD last minute?
Being a spontaneous soul is a fabulous way to explore the globe, but it’s not necessarily the wisest way to get your hands on a bargain flight. Consider booking your Philadelphia Intl. Airport (PHL) to Mascot Airport journey well in advance rather than waiting till the last minute. Based on flight pricing and demand studies in 2022, we have found that the best time to book domestic flights is between 28 – 35 days ahead of the departure date, and international flights three to four months in advance. We recommend saving that spontaneity for when you get to Mascot Airport!
What airports do you fly into for Sydney from Philadelphia?
You have one option when traveling from Philadelphia to Sydney — Kingsford Smith Intl. Airport (SYD). Disembark here and you’ll be around 5 mi southwest of central Sydney. Work out your travel dates and immerse yourself in everything that this exhilarating city has to offer.
Can I change the date of my flight from Philadelphia Intl. Airport (PHL) to Kingsford Smith Intl. Airport (SYD)?
It’s a piece of cake to make amendments to your Philadelphia Intl. Airport (PHL) to SYD trip yourself. Log in to the Expedia Trips portal and hit “change flight.” Look for new flights and book the one that works best with your plans. You’ll see an estimate of flight change fees that may apply. You can also visit our Customer Service portal to chat to our Virtual Agent and quickly get answers to your questions.
*Available to One Key members.