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

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Flight deals from Philadelphia to Sydney Airport

Looking for a cheap last-minute deal or the best return flight from Philadelphia to Sydney Airport? If you want to travel next month, return fares start from $2,228. Find the lowest prices on one-way and return tickets right here.

Sydney.$2,203 per passenger.Departing Sun, 26 Apr, returning Tue, 12 May.Return flight with Qantas.Outbound indirect flight with Qantas, departs from Philadelphia International on Sun, 26 Apr, arriving in Sydney.Inbound indirect flight with Qantas, departs from Sydney on Tue, 12 May, arriving in Philadelphia International.Price includes taxes and charges.From $2,203, select.

Sydney.$2,228 per passenger.Departing Mon, 13 Apr, returning Mon, 20 Apr.Return flight with Qantas.Outbound indirect flight with Qantas, departs from Philadelphia International on Mon, 13 Apr, arriving in Sydney.Inbound indirect flight with Qantas, departs from Sydney on Mon, 20 Apr, arriving in Philadelphia International.Price includes taxes and charges.From $2,228, select.

Sydney.$2,307 per passenger.Departing Mon, 1 Jun, returning Fri, 21 Aug.Return flight with Qantas.Outbound indirect flight with Qantas, departs from Philadelphia International on Mon, 1 Jun, arriving in Sydney.Inbound indirect flight with Qantas, departs from Sydney on Fri, 21 Aug, arriving in Philadelphia International.Price includes taxes and charges.From $2,307, select.

Sydney.$2,307 per passenger.Departing Tue, 3 Nov, returning Thu, 26 Nov.Return flight with Qantas.Outbound indirect flight with Qantas, departs from Philadelphia International on Tue, 3 Nov, arriving in Sydney.Inbound indirect flight with Qantas, departs from Sydney on Thu, 26 Nov, arriving in Philadelphia International.Price includes taxes and charges.From $2,307, select.

Sydney.$2,319 per passenger.Departing Sat, 31 Oct, returning Tue, 10 Nov.Return flight with Qantas.Outbound indirect flight with Qantas, departs from Philadelphia International on Sat, 31 Oct, arriving in Sydney.Inbound indirect flight with Qantas, departs from Sydney on Tue, 10 Nov, arriving in Philadelphia International.Price includes taxes and charges.From $2,319, select.

Sydney.$2,326 per passenger.Departing Mon, 17 Aug, returning Sat, 29 Aug.Return flight with Qantas.Outbound indirect flight with Qantas, departs from Philadelphia International on Mon, 17 Aug, arriving in Sydney.Inbound indirect flight with Qantas, departs from Sydney on Sat, 29 Aug, arriving in Philadelphia International.Price includes taxes and charges.From $2,326, select.

Sydney.$2,364 per passenger.Departing Thu, 17 Sep, returning Thu, 24 Sep.Return flight with Qantas.Outbound indirect flight with Qantas, departs from Philadelphia International on Thu, 17 Sep, arriving in Sydney.Inbound indirect flight with Qantas, departs from Sydney on Thu, 24 Sep, arriving in Philadelphia International.Price includes taxes and charges.From $2,364, select.

Sydney.$2,381 per passenger.Departing Sat, 23 May, returning Sun, 7 Jun.Return flight with Qantas.Outbound indirect flight with Qantas, departs from Philadelphia International on Sat, 23 May, arriving in Sydney.Inbound indirect flight with Qantas, departs from Sydney on Sun, 7 Jun, arriving in Philadelphia International.Price includes taxes and charges.From $2,381, select.

Sydney.$2,405 per passenger.Departing Sat, 4 Jul, returning Sat, 11 Jul.Return flight with Qantas.Outbound indirect flight with Qantas, departs from Philadelphia International on Sat, 4 Jul, arriving in Sydney.Inbound indirect flight with Qantas, departs from Sydney on Sat, 11 Jul, arriving in Philadelphia International.Price includes taxes and charges.From $2,405, select.

Sydney.$2,441 per passenger.Departing Tue, 3 Nov, returning Wed, 9 Dec.Return flight with Qantas.Outbound indirect flight with Qantas, departs from Philadelphia International on Tue, 3 Nov, arriving in Sydney.Inbound indirect flight with Qantas, departs from Sydney on Wed, 9 Dec, arriving in Philadelphia International.Price includes taxes and charges.From $2,441, select.

Sydney.$2,594 per passenger.Departing Fri, 26 Jun, returning Sat, 25 Jul.Return flight with Qantas.Outbound indirect flight with Qantas, departs from Philadelphia International on Fri, 26 Jun, arriving in Sydney.Inbound indirect flight with Qantas, departs from Sydney on Sat, 25 Jul, arriving in Philadelphia International.Price includes taxes and charges.From $2,594, select.

Sydney.$2,666 per passenger.Departing Wed, 7 Oct, returning Fri, 23 Oct.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Philadelphia International on Wed, 7 Oct, arriving in Sydney.Inbound indirect flight with Air Canada, departs from Sydney on Fri, 23 Oct, arriving in Philadelphia International.Price includes taxes and charges.From $2,666, select.

Sydney.$2,689 per passenger.Departing Mon, 17 Aug, returning Thu, 3 Sep.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Philadelphia International on Mon, 17 Aug, arriving in Sydney.Inbound indirect flight with Air Canada, departs from Sydney on Thu, 3 Sep, arriving in Philadelphia International.Price includes taxes and charges.From $2,689, select.

Sydney.$3,126 per passenger.Departing Fri, 29 Jan, returning Mon, 1 Mar.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Philadelphia International on Fri, 29 Jan, arriving in Sydney.Inbound indirect flight with Air Canada, departs from Sydney on Mon, 1 Mar, arriving in Philadelphia International.Price includes taxes and charges.From $3,126, select.

Sydney.$4,080 per passenger.Departing Mon, 4 Jan, returning Sun, 31 Jan.Return flight with Qantas.Outbound indirect flight with Qantas, departs from Philadelphia International on Mon, 4 Jan, arriving in Sydney.Inbound indirect flight with Qantas, departs from Sydney on Sun, 31 Jan, arriving in Philadelphia International.Price includes taxes and charges.From $4,080, select.

Sydney.$5,544 per passenger.Departing Tue, 31 Mar, returning Sat, 4 Apr.Return flight with Emirates.Outbound indirect flight with Emirates, departs from Philadelphia International on Tue, 31 Mar, arriving in Sydney.Inbound indirect flight with Emirates, departs from Sydney on Sat, 4 Apr, arriving in Philadelphia International.Price includes taxes and charges.From $5,544, 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.

Sydney

9km from central Sydney

ClosestCheapest

from $2,203

Search flights

Wollongong

87km from central Sydney

Search flights

Philadelphia to Sydney: Flight information

The things to know before you go.

Cheapest flight found	$2,203
Cheapest month to fly	April

Check out these Sydney hotels

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Spicers Sangoma Retreat - Adults Only

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25hours Hotel Sydney the Olympia

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Hoteloco

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Spicers Sangoma Retreat - Adults Only

62.45 km from city centre

$2,718

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25hours Hotel Sydney the Olympia

1.16 km from city centre

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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 $2,203. 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 $2,203.

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

As of March 2026, 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 April.

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 Sunday, 26 April 2026.

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 Qantas .

Travelling from Philadelphia to Sydney Kingsford Smith International Airport (SYD): What you need to know

Sydney is 16 hours ahead of Philadelphia. Sydney Kingsford Smith International Airport is located in Sydney, which runs on the UTC+11 timezone.
Give yourself plenty of time to catch your flight from Philadelphia to SYD. A good rule of thumb is to arrive two hours before international departures and an hour ahead for domestic flights.
With more travellers during busy months like July, be at your terminal even earlier. Two hours for domestic flights and as much as four for international journeys will help you deal with any delays. Remember things also get busy during major holidays like July Fourth.

Airports in Philadelphia

Philadelphia International Airport (PHL)

Stopovers are the perfect opportunity to break up your journey and possibly even visit a new city. When searching for cheap flights from Philadelphia to SYD leaving from Philadelphia International Airport (PHL), uncheck the 'Direct flights only' box to find out where you can visit along the way. Here's where you could connect through:
- Dallas Fort Worth International Airport (DFW)
- Los Angeles International Airport (LAX)
- Houston George Bush Intercontinental Airport (IAH)
PHL is about 18 kilometres from central Philadelphia. If you're driving, catching a taxi or ride-sharing from the centre, it'll take 20 minutes or so to get there, depending on traffic conditions. If you're using public transport, expect the travel time to be around 30 minutes.
Want a stress-free start to your travels? Stay near Philadelphia International Airport. Whether you've booked an early flight from Philadelphia to Sydney Kingsford Smith International Airport or prefer not to feel hurried, these hotels are just what you're after:
77% of flights that leave from Philadelphia International Airport touch down at their destination on time.
You'll find PHL at 8500 Essington Ave.

Trenton-Mercer Airport (TTN)

With public transport, you can travel from central Philadelphia to TTN in around 1 hour 35 minutes. The terminal is roughly 48 kilometres away, and getting there by car takes approximately 40 minutes.
Want to enjoy an extra night away before boarding your Philadelphia to SYD flight? Check in to a hotel near Trenton-Mercer Airport before your break officially starts. These stays are expecting you:
76% of flights out of Trenton-Mercer Airport make it to their destination as expected.
You'll find TTN at Scotch Road, Terminal Building.

About Sydney Kingsford Smith International Airport (SYD)

If you're arriving on a late flight from Philadelphia to Sydney Kingsford Smith International Airport, few things beat the convenience of staying near the terminal. Pick up your luggage at baggage claim and then be showered and resting soon after at one of these options near SYD:
Booking your vehicle around two weeks in advance of your Philadelphia to Sydney Kingsford Smith International Airport flight can help you lock in a great deal.

Getting from Sydney Kingsford Smith International Airport (SYD) to central Sydney

Sydney Kingsford Smith International Airport to central Sydney is around 8 kilometres. If you're taking a taxi or renting a car, do a little research to make your trip as smooth as possible. Journey times may vary depending on traffic and the time of day.
When travelling on public transport, expect a journey time of about 15 minutes.

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

The cheapest price we've found for a one-way ticket from Philadelphia to Sydney Kingsford Smith International Airport is $1,478. For a return flight on this route, the best price is $2,203. Depending on the availability and when you book, these fares can change.
To pick up cheap flights from Philadelphia to SYD, book early. Airlines generally offer lower prices when flights first go on sale.
The 'Whole month' tool will show you the cheapest Philadelphia to Sydney Kingsford Smith International Airport tickets across each month. It's a good way to snap up a bargain if your trip dates are flexible.
Locking in a cheap plane ticket from Philadelphia to SYD is a breeze with Price Alerts. Simply create one of these automatic alerts and we'll get in touch when prices go down.
Tailor your trip using filters. Choose your preferred arrival and departure times, airlines and total journey duration. You can also sort your results by 'Fastest,' 'Best' or 'Cheapest' flights from Philadelphia to Sydney Kingsford Smith International Airport.

The best time to fly from Philadelphia to Sydney Kingsford Smith International Airport (SYD)

December is the quietest month for flights from Philadelphia to Sydney Kingsford Smith International Airport (SYD), while July is the busiest. Figure out the ideal time to go to Sydney based on whether you like a laid-back vibe or a more bustling atmosphere.
Before locking in your Philadelphia to SYD plane ticket, consider the weather you're most comfortable in. January is the warmest month in Sydney, with temperatures ranging from 17ºC to 32ºC.
Look for cheap tickets from Philadelphia to Sydney Kingsford Smith International Airport in July if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between 5ºC and 19ºC.

More about Sydney

Once you've booked your flight from Philadelphia to Sydney Kingsford Smith International Airport, find a hotel that's got location and comfort covered. Make one of these options your base for exploring Sydney:
Sydney Harbour Bridge and Sydney Harbour are just a couple of the top attractions to add to your Sydney itinerary. Continue your sightseeing adventures at Sydney Opera House.

Explore more of Australia

You've done Sydney, now it's time to discover other parts of Australia. Journey around 241 kilometres southwest to Canberra to check off its popular sights. From National Gallery of Australia to National Portrait Gallery and Museum of Australian Democracy, there's plenty to keep you busy.
Newcastle is another essential stop in Australia and is around 129 kilometres northeast of Sydney. No trip is complete without visiting Merewether Beach, Nobbys Beach and Newcastle Beach.