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Cheap flights from Pennsylvania to Sydney from $746

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/5. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SYD
9 Jun — 16 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Pennsylvania to Sydney

Enter your travel dates to find the best prices.

Cheapest flights from Pennsylvania to Sydney
Explore the most affordable flight options available from Pennsylvania to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 May 2026.

Sun 10/516:50
DCA
-
SYD
1 stop24h 00m
Delta
Sun 24/509:15
SYD
-
DCA
1 stop20h 25m
Delta
Deal found 7/5$1,393
Mon 1/616:50
DCA
-
SYD
1 stop24h 00m
Delta
Sun 7/609:15
SYD
-
DCA
1 stop20h 20m
Delta
Deal found 8/5$1,394
Mon 15/610:16
IAD
-
SYD
2 stops30h 34m
Delta
Mon 29/609:15
SYD
-
IAD
2 stops29h 29m
Delta
Deal found 7/5$1,400
Tue 30/613:31
PHL
-
SYD
2 stops27h 29m
United Airlines
Mon 27/710:20
SYD
-
PHL
2 stops33h 11m
United Airlines
Deal found 7/5$1,400
Mon 1/611:15
IAD
-
SYD
2 stops29h 35m
Delta
Sun 7/609:15
SYD
-
IAD
2 stops23h 27m
Delta
Deal found 8/5$1,401
Wed 5/814:31
PHL
-
SYD
2 stops26h 19m
Delta
Wed 19/809:15
SYD
-
PHL
2 stops24h 36m
Delta
Deal found 8/5$1,401
Sat 30/516:14
PHL
-
SYD
2 stops48h 46m
United Airlines
Sun 14/609:30
SYD
-
PHL
2 stops29h 29m
United Airlines
Deal found 7/5$1,419
Sat 27/615:38
PHL
-
SYD
2 stops49h 12m
Delta
Wed 29/709:15
SYD
-
PHL
2 stops22h 49m
Delta
Deal found 7/5$1,420
Mon 1/616:50
DCA
-
SYD
1 stop24h 00m
Delta
Sat 25/709:15
SYD
-
DCA
1 stop20h 20m
Delta
Deal found 8/5$1,462
Sun 14/616:45
DCA
-
SYD
1 stop24h 05m
Delta
Sat 20/609:15
SYD
-
DCA
1 stop20h 20m
Delta
Deal found 8/5$1,463
Mon 1/612:40
IAD
-
SYD
2 stops28h 10m
Delta
Sat 25/709:15
SYD
-
IAD
2 stops27h 58m
Delta
Deal found 8/5$1,469
Mon 1/616:50
DCA
-
SYD
1 stop24h 00m
Delta
Thu 23/709:15
SYD
-
DCA
2 stops27h 44m
Delta
Deal found 8/5$1,469

Find flight deals from Pennsylvania to Sydney

Keep the following information in mind while searching for Pennsylvania to Sydney flight deals. Data was last updated 10 May 2026.

Round-trip from

$1,393

One-way from

$746

Popular in

December

Cheapest in

February

Average price

$1,994
Delta
  • Delta
  • 1/6-7/6
  • 2 total stops
  • 44h 20m total
  • Pennsylvania to Sydney
Search Deals
Delta
  • Delta
  • 20/5
  • 2 total stops
  • 28h 10m total
  • Pennsylvania to Sydney
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($404 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($97 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Pennsylvania to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 10 May 2026.
Use the filters below to find and compare flights from Pennsylvania to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sun 24/5

10:32-06:50

2 stops30h 18m

Sydney Kingsford Smith

Sun 7/6

09:15-18:37

2 stops23h 22m

$1,400

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Tue 4/8

16:45-06:50

1 stop24h 05m

Sydney Kingsford Smith

Sun 27/9

09:15-23:24

2 stops28h 09m

$1,401

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sat 23/5

08:05-06:50

2 stops32h 45m

Sydney Kingsford Smith

Tue 26/5

09:15-18:06

2 stops22h 51m

$1,469

New YorkSydney

LGA - SYD

LGASYD

New York LaGuardia

Sat 23/5

16:59-07:00

2 stops48h 01m

Sydney Kingsford Smith

Wed 27/5

09:30-19:04

2 stops23h 34m

$1,595

NewarkSydney

EWR - SYD

EWRSYD

Newark

Wed 10/6

16:00-06:55

2 stops24h 55m

Sydney Kingsford Smith

Wed 24/6

09:30-17:15

1 stop21h 45m

$1,601

New YorkSydney

JFK - SYD

JFKSYD

New York John F Kennedy Intl

Sun 26/7

16:27-06:50

2 stops24h 23m

Sydney Kingsford Smith

Tue 4/8

09:15-20:09

2 stops24h 54m

$1,607

New YorkSydney

LGA - SYD

LGASYD

New York LaGuardia

Tue 26/5

14:59-06:50

2 stops25h 51m

Sydney Kingsford Smith

Tue 2/6

09:15-19:01

2 stops23h 46m

$1,607

PittsburghSydney

PIT - SYD

PITSYD

Pittsburgh

Wed 3/6

14:13-06:55

2 stops26h 42m

Sydney Kingsford Smith

Sun 14/6

09:30-21:02

2 stops25h 32m

$1,608

New YorkSydney

LGA - SYD

LGASYD

New York LaGuardia

Wed 22/7

15:20-07:00

2 stops25h 40m

Sydney Kingsford Smith

Tue 4/8

09:30-21:54

2 stops26h 24m

$1,608

New YorkSydney

LGA - SYD

LGASYD

New York LaGuardia

Tue 26/5

15:20-07:00

2 stops25h 40m

Sydney Kingsford Smith

Wed 3/6

10:20-19:22

2 stops23h 02m

$1,608

Flights are sorted by cheapest return flights first.

Deals found on 7/5

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Pennsylvania to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Pennsylvania with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Pennsylvania to Sydney

How far ahead should I book a flight from Pennsylvania to Sydney?

To ensure you get the cheapest price possible for a flight from Pennsylvania to Sydney, you should look to book at least 86 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Pennsylvania to Sydney?

Currently, August is the cheapest month in which you can book a flight from Pennsylvania to Sydney (average of $345). Flying from Pennsylvania to Sydney in June is currently the most expensive (average of $1,678). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Pennsylvania to Sydney?

Related info for your journey

Find useful and relevant information for your journey from Pennsylvania to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Sydney from Pennsylvania?

    Most people fly into Sydney Kingsford Smith (SYD) if they book a flight to Sydney from Pennsylvania. Kingsford Smith is conveniently located just 7.5 km from Sydney’s city centre.

  • How long is the flight from Pennsylvania to Sydney?

    A quick flight from Pennsylvania to Sydney can take about 30h 18m. Delta provides one of the quickest options available for as low as $1,400. The distance between Pennsylvania and Sydney is about 15871 km. This flight may include one or multiple stops.

  • What are the most popular routes from Pennsylvania to Sydney?

    The most popular flight routes from Pennsylvania to Sydney are New York John F Kennedy Intl - Sydney Kingsford Smith, Newark - Sydney Kingsford Smith and New York LaGuardia - Sydney Kingsford Smith.

  • Can I find deals for flights from Pennsylvania to Sydney that include hotel bookings?

    Yes. In addition to deals on Pennsylvania to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Pennsylvania to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pennsylvania to Sydney.

  • Can I find deals for business class flights from Pennsylvania to Sydney?

    Yes. Cheapflights offers flight deals from Pennsylvania to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Pennsylvania to Sydney?

    Currently, August is the cheapest month in which you can book a flight from Pennsylvania to Sydney (average of $345). Flying from Pennsylvania to Sydney in June is currently the most expensive (average of $1,678). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Penrith
Katoomba
Terrigal
Lithgow
Manly
Cronulla
Bondi Beach
Leura
Randwick
Coogee

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Why should you use Cheapflights to find cheap flight tickets from Pennsylvania to Sydney?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Pennsylvania to Sydney.

Can Cheapflights find flights from Pennsylvania to Sydney with no change fees?

Certainly. Search results for flights to Sydney from Pennsylvania shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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Not ready to book yet? You can track prices for flights from Pennsylvania to Sydney on Cheapflights with our Price Alert feature and get notified when better prices are available.

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