$832 Cheap Flights from Sydney (SYD) to Philadelphia (PHL)

View $832 flight on Tue, Oct 21, 2025Opens in a new window

Popular airlines from Sydney Airport (SYD) to Philadelphia Intl. Airport (PHL)

Cheap Flights from Sydney to Philadelphia (SYD-PHL)

Prices were available within the past 7 days and start at $832 for one-way flights and $1,254 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Oct 22 - Wed, Nov 5
SYD
Sydney
PHL
Philadelphia
$1,254 Roundtrip, found 6 days ago
$1,254
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Oct 22 from Sydney to Philadelphia, returning Wed, Nov 5, priced at $1,254 found 6 days ago
United
Wed, Oct 22 - Wed, Nov 5
SYD
Sydney
PHL
Philadelphia
$1,309 Roundtrip, found 6 days ago
$1,309
Roundtrip
found 6 days ago
Select United flight, departing Wed, Oct 22 from Sydney to Philadelphia, returning Wed, Nov 5, priced at $1,309 found 6 days ago
United
Wed, Oct 22 - Wed, Nov 5
SYD
Sydney
PHL
Philadelphia
$1,313 Roundtrip, found 6 days ago
$1,313
Roundtrip
found 6 days ago
Select United flight, departing Wed, Oct 22 from Sydney to Philadelphia, returning Wed, Nov 5, priced at $1,313 found 6 days ago
Air Canada
Wed, Nov 12 - Wed, Nov 19
SYD
Sydney
PHL
Philadelphia
$1,321 Roundtrip, found 3 days ago
$1,321
Roundtrip
found 3 days ago
Select Air Canada flight, departing Wed, Nov 12 from Sydney to Philadelphia, returning Wed, Nov 19, priced at $1,321 found 3 days ago
United
Wed, Oct 22 - Wed, Nov 5
SYD
Sydney
PHL
Philadelphia
$1,323 Roundtrip, found 6 days ago
$1,323
Roundtrip
found 6 days ago
Select United flight, departing Wed, Oct 22 from Sydney to Philadelphia, returning Wed, Nov 5, priced at $1,323 found 6 days ago
Air Canada
Tue, Nov 18 - Tue, Feb 3
SYD
Sydney
PHL
Philadelphia
$1,325 Roundtrip, found 3 days ago
$1,325
Roundtrip
found 3 days ago
Select Air Canada flight, departing Tue, Nov 18 from Sydney to Philadelphia, returning Tue, Feb 3, priced at $1,325 found 3 days ago
United
Wed, Oct 22 - Wed, Nov 5
SYD
Sydney
PHL
Philadelphia
$1,328 Roundtrip, found 6 days ago
$1,328
Roundtrip
found 6 days ago
Select United flight, departing Wed, Oct 22 from Sydney to Philadelphia, returning Wed, Nov 5, priced at $1,328 found 6 days ago
Alaska Airlines
Mon, Jan 19 - Tue, Jan 20
SYD
Sydney
PHL
Philadelphia
$1,465 Roundtrip, found 15 hours ago
$1,465
Roundtrip
found 15 hours ago
Select Alaska Airlines flight, departing Mon, Jan 19 from Sydney to Philadelphia, returning Tue, Jan 20, priced at $1,465 found 15 hours ago
All Nippon Airways
Wed, Oct 8 - Sun, Oct 26
SYD
Sydney
PHL
Philadelphia
$1,653 Roundtrip, found 2 days ago
$1,653
Roundtrip
found 2 days ago
Select All Nippon Airways flight, departing Wed, Oct 8 from Sydney to Philadelphia, returning Sun, Oct 26, priced at $1,653 found 2 days ago
JetBlue Airways
Tue, Oct 28 - Fri, Nov 14
SYD
Sydney
PHL
Philadelphia
$1,658 Roundtrip, found 2 days ago
$1,658
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Tue, Oct 28 from Sydney to Philadelphia, returning Fri, Nov 14, priced at $1,658 found 2 days ago

Alternative airports near Philadelphia

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Philadelphia Intl. PHL. Cheapest and Closest option available. Average driving time to city center is 17 minutes. Flights from $1,960
PHL
Philadelphia Intl.
CheapestClosest
Average driving time to city center17 min
Flights from $1,960
Flights from Sydney (SYD) to Philadelphia (PHL)
Origin airport
Kingsford Smith Intl.
Destination airport
Philadelphia Intl.
Airlines serving
Air Canada, Air New Zealand, Air Tahiti Nui, Alaska Airlines, All Nippon Airways, American Airlines, Cathay Pacific, Delta, Japan Airlines, Qantas Airways, Qatar Airways, United
Roundtrip price
$1,254
Distance
9868 mi

Sydney to Philadelphia Flights

The cheapest times to fly from Sydney to Philadelphia

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 Sydney to Philadelphia are during the month of October. You can find some of the cheapest flights from Sydney to Philadelphia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Sydney to Philadelphia

Sunday is one of the best days to book for cheap flights from Sydney to Philadelphia: 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 Sydney to Philadelphia

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 Sydney to Philadelphia in 2025. You can also book with separate airlines for your outbound and return journeys, from $832 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 Sydney to Philadelphia 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 Sydney to Philadelphia 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

How much does a flight from Kingsford Smith Intl. Airport (SYD) to Philadelphia Intl. Airport (PHL) cost?
Get a cheap one-way flight from $832 or cheap return flight from $1,254 from Kingsford Smith Intl. Airport (SYD) to Philadelphia Intl. Airport (PHL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Kingsford Smith Intl. Airport (SYD) to Philadelphia Intl. Airport (PHL)?
The cheapest month to fly from SYD to PHL is October, when demand is low. Off-peak season is generally when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Kingsford Smith Intl. Airport (SYD) to Philadelphia Intl. Airport (PHL)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll take you from SYD to PHL. Then, sort your results by "Price (lowest to highest)" to snap up the best deal available.
How many flights per day from Kingsford Smith Intl. Airport (SYD) to Philadelphia Intl. Airport (PHL)?
There are no daily direct flights from Kingsford Smith Intl. Airport (SYD) to Philadelphia Intl. Airport (PHL). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be on your way in no time at all.
What day of the week has the most flights from SYD to PHL?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Kingsford Smith Intl. Airport (SYD) to Philadelphia Intl. Airport (PHL)?
To touch down at Philadelphia Intl. Airport (PHL) without delays, choose a flight that leaves Kingsford Smith Intl. Airport (SYD) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Kingsford Smith Intl. Airport (SYD) to Philadelphia Intl. Airport (PHL) last-minute?
Booking your flight from SYD to PHL just before your getaway is usually more expensive. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a SYD to PHL flight and hotel package?
You'll typically save money by securing a SYD to PHL flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. Once you've chosen your ideal accommodations and flights, consider adding extras including activities, car rentals and tours.
Can I cancel or change the date of my flight from Kingsford Smith Intl. Airport (SYD) to Philadelphia Intl. Airport (PHL)?
Typically, you're able to reschedule or cancel your SYD to PHL flight. However, there may be additional fees, especially if you booked more than 24 hours ago. Check your itinerary for the airline's guidelines and fees on flight changes, or if you need more information, head to our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.