Cheap Flights from Philadelphia to Sydney

Compare Philadelphia to Sydney flight deals

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

Book the best Sydney fare with no extra fees

Flight deals from Philadelphia to Sydney

Looking for a cheap last-minute deal or the best return flight from Philadelphia to Sydney? Find the lowest prices on one-way and return tickets right here.

Sydney.SAR 2,079 per passenger.Departing Thu, 17 Apr.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Thu, 17 Apr, arriving in Sydney.Price includes taxes and charges.From SAR 2,079, select.

Sydney.SAR 2,338 per passenger.Departing Sat, 22 Mar.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Sat, 22 Mar, arriving in Sydney.Price includes taxes and charges.From SAR 2,338, select.

Sydney.SAR 2,988 per passenger.Departing Tue, 9 Sep.One-way flight with Hawaiian Airlines.Outbound indirect flight with Hawaiian Airlines, departs from Philadelphia International on Tue, 9 Sep, arriving in Sydney.Price includes taxes and charges.From SAR 2,988, select.

Sydney.SAR 3,052 per passenger.Departing Sun, 8 Jun.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Sun, 8 Jun, arriving in Sydney.Price includes taxes and charges.From SAR 3,052, select.

Sydney.SAR 3,078 per passenger.Departing Tue, 21 Oct.One-way flight with Hawaiian Airlines.Outbound indirect flight with Hawaiian Airlines, departs from Philadelphia International on Tue, 21 Oct, arriving in Sydney.Price includes taxes and charges.From SAR 3,078, select.

Sydney.SAR 3,220 per passenger.Departing Thu, 13 Nov.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Philadelphia International on Thu, 13 Nov, arriving in Sydney.Price includes taxes and charges.From SAR 3,220, select.

Sydney.SAR 3,233 per passenger.Departing Tue, 2 Dec.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Philadelphia International on Tue, 2 Dec, arriving in Sydney.Price includes taxes and charges.From SAR 3,233, select.

Sydney.SAR 3,616 per passenger.Departing Wed, 9 Jul.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Philadelphia International on Wed, 9 Jul, arriving in Sydney.Price includes taxes and charges.From SAR 3,616, select.

Find the cheapest month to fly from Philadelphia to Sydney

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

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Philadelphia to Sydney: Alternative routes

Compare routes from Philadelphia 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 found	SAR 2,079
Cheapest month to fly	April

Finding cheap flights from Philadelphia to Sydney: Frequently asked questions

How much are return flights from Philadelphia to Sydney?

The best price we found for a return flight from Philadelphia to Sydney is SAR 3,571. 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.

Which airlines fly direct from Philadelphia to Sydney?

Currently, there are no airlines that fly direct from Philadelphia to Sydney. But we found flights with one stop from SAR 3,571.

How many flights are there a week from Philadelphia to Sydney?

As of March 2025, there are no flights flying from Philadelphia to Sydney.

When is the cheapest time to fly from Philadelphia to Sydney?

The cheapest month to fly from Philadelphia to Sydney is usually March 2025.

Which upcoming date is cheapest to fly from Philadelphia to Sydney Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Philadelphia to Sydney Airport on Tuesday, 20 May 2025.

Can I get a direct flight from Philadelphia to Sydney Airport?

No airlines currently offer direct flights between Philadelphia and Sydney Airport. Most routes have one or more stops.

How can I find the best flight deal to Sydney?

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.

When is the best time to book flights to Sydney?

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.

Which is the cheapest airline to fly from Philadelphia to Sydney with?

The cheapest airline that flies to Sydney is Air Canada .

How to find cheap flights to Sydney from Philadelphia

Looking for cheap tickets from Philadelphia to Sydney? Here are a few tips on how to secure the best flight price and make your journey as smooth as possible.

Simply hit 'search'. From British Airways to international carriers like Emirates, we compare all major airlines along with the most popular online travel agents to find the cheapest plane tickets from Philadelphia to Sydney. And with us there are no hidden fees - what you see is what you pay.
Compare flight deals to Sydney from Philadelphia from over 1,000 providers. Then choose the cheapest or fastest plane tickets.
Flex your dates to find the best Philadelphia-Sydney ticket prices. If you are flexible when it comes to your travel dates, use Skyscanner's 'Whole month' tool to find the cheapest month, and even day to fly to Sydney from Philadelphia.
Set up a Price Alert. You can easily track the fare of your cheap Philadelphia-Sydney flights by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible flight deal.
Fly without stops. Only interested in direct flights between Philadelphia and Sydney? Make sure to tick 'Direct flights only' when performing a search. If there are direct flights available on the route, these will appear in the results.
Find the cheapest Business class flights from Philadelphia and Sydney. We scour the internet for the best Business, Premium Economy and First Class flight fares to Sydney, too. Check the difference in price as you search – you might just chance upon a last-minute low fare. Note that not all cabin classes are available for every destination or airline.
Include nearby airports in your search. Widen your search for Philadelphia to Sydney flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save next time you travel.

Combine your flight to Sydney from Philadelphia with hotels and car hire

Once you've secured your cheap flight ticket from Philadelphia to Sydney, discover the best prices and exclusive rates for hotels in Sydney or nearby. You can also compare hundreds of car hire companies in one go so that you get the best car hire price for your trip.