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$520+ Cheap flights from Pennsylvania to Australia

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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SYD
Jan 16 — Jan 231
Fri 1/16
Fri 1/23
1 adult, Economy
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Cheap flight deals from Pennsylvania to Australia

Cheapest flights from Pennsylvania to Australia
Explore the most affordable flight options available from Pennsylvania to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 17, 2025.

This United Airlines deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/174:30 pmEWR - MEL
1 stop25h 30mUnited Airlines
Thu 1/1511:30 amMEL - EWR
1 stop25h 55mUnited Airlines
Deal found 12/15$1,011
This United Airlines deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/178:45 amEWR - MEL
1 stop33h 15mUnited Airlines
Tue 1/1311:30 amMEL - EWR
2 stops23h 59mUnited Airlines
Deal found 12/15$1,016
This United Airlines deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:00 amEWR - MEL
1 stop35h 30mUnited Airlines
Thu 3/2612:00 pmMEL - EWR
1 stop24h 33mUnited Airlines
Deal found 12/15$1,022
This United Airlines deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:00 amEWR - MEL
1 stop35h 30mUnited Airlines
Sun 3/2911:55 amMEL - EWR
1 stop34h 54mUnited Airlines
Deal found 12/15$1,032
This Orbitz deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:47 amEWR - SYD
2 stops33h 48mMultiple Airlines
Tue 1/207:45 amSYD - EWR
2 stops25h 08mMultiple Airlines
Deal found 12/15$1,173
This Air Canada deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:29 pmEWR - SYD
2 stops41h 26mAir Canada
Thu 1/2911:20 amSYD - EWR
1 stop21h 33mAir Canada
Deal found 12/16$1,264
This Air Canada deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:50 pmJFK - SYD
2 stops46h 05mAir Canada
Thu 1/2911:20 amSYD - JFK
2 stops49h 38mAir Canada
Deal found 12/16$1,268
This oojo deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:45 pmJFK - SYD
1 stop23h 15mQantas Airways
Mon 5/188:55 amSYD - JFK
1 stop21h 25mQantas Airways
Deal found 12/16$1,293
This oojo deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:45 pmJFK - SYD
1 stop23h 15mQantas Airways
Fri 1/238:55 amSYD - JFK
1 stop21h 30mQantas Airways
Deal found 12/16$1,294
This oojo deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:30 pmJFK - SYD
1 stop45h 30mQantas Airways
Mon 1/198:55 amSYD - JFK
1 stop21h 30mQantas Airways
Deal found 12/16$1,299
This United Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:00 amEWR - MEL
1 stop35h 30mUnited Airlines
Sun 1/111:00 pmMEL - EWR
1 stop34h 09mUnited Airlines
Deal found 12/17$1,321
This United Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/182:00 pmEWR - MEL
1 stop28h 00mUnited Airlines
Thu 12/251:00 pmMEL - EWR
1 stop22h 10mUnited Airlines
Deal found 12/17$1,331

Find flight deals from Pennsylvania to Australia

Keep the following information in mind while searching for Pennsylvania to Australia flight deals. Data was last updated December 17, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$938
(Air Canada)

One-way from

$520
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,929
Provider with most accurate pricing for Philadelphia-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Sydney Kingsford Smith flights.
Search Deals
From Pennsylvania to Australia
Search Deals
One-way flight from Pennsylvania to Australia
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($193 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pennsylvania to Australia 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 2,558,603 searches. Data last updated December 17, 2025.
Use the filters below to find and compare flights from Pennsylvania to Australia that are best for you.

Fly from

Pennsylvania

Fly to

Australia

Route

Depart

Return

Price

New YorkSydney

JFK - SYD

JFKSYD

New York John F Kennedy Intl

Tue 2/10

1:30 pm-6:50 am

1 stop25h 20m

Sydney Kingsford Smith

Wed 2/18

10:40 am-4:08 pm

1 stop21h 28m

$995

New YorkSydney

LGA - SYD

LGASYD

New York LaGuardia

Sun 2/8

11:15 am-6:20 am

2 stops27h 05m

Sydney Kingsford Smith

Sun 2/15

11:50 am-4:27 pm

1 stop20h 37m

$995

New YorkSydney

JFK - SYD

JFKSYD

New York John F Kennedy Intl

Tue 3/10

3:55 pm-6:05 am

1 stop23h 10m

Sydney Kingsford Smith

Wed 3/18

9:40 am-5:53 pm

1 stop23h 13m

$995

New YorkSydney

LGA - SYD

LGASYD

New York LaGuardia

Sun 2/8

3:41 pm-7:00 am

1 stop23h 19m

Sydney Kingsford Smith

Mon 2/16

11:50 am-7:07 pm

1 stop23h 17m

$995

New YorkSydney

JFK - SYD

JFKSYD

New York John F Kennedy Intl

Mon 4/6

11:00 am-6:35 am

1 stop29h 35m

Sydney Kingsford Smith

Mon 4/20

9:15 am-7:22 pm

1 stop24h 07m

$995

New YorkSydney

LGA - SYD

LGASYD

New York LaGuardia

Sun 3/15

4:55 pm-9:05 am

2 stops25h 10m

Sydney Kingsford Smith

Wed 3/25

11:50 am-8:51 pm

1 stop24h 01m

$995

New YorkSydney

LGA - SYD

LGASYD

New York LaGuardia

Tue 2/10

3:41 pm-7:00 am

1 stop23h 19m

Sydney Kingsford Smith

Wed 2/18

11:50 am-4:27 pm

1 stop20h 37m

$995

New YorkSydney

LGA - SYD

LGASYD

New York LaGuardia

Wed 2/11

3:41 pm-7:00 am

1 stop23h 19m

Sydney Kingsford Smith

Wed 2/18

11:50 am-4:27 pm

1 stop20h 37m

$995

New YorkSydney

LGA - SYD

LGASYD

New York LaGuardia

Mon 3/16

3:39 pm-7:00 am

1 stop24h 21m

Sydney Kingsford Smith

Tue 3/24

11:50 am-7:17 pm

1 stop22h 27m

$995

New YorkSydney

LGA - SYD

LGASYD

New York LaGuardia

Tue 2/10

3:41 pm-7:00 am

1 stop23h 19m

Sydney Kingsford Smith

Tue 2/17

11:50 am-7:07 pm

1 stop23h 17m

$995

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 60 results
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Best time to book a flight from Pennsylvania to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia from Pennsylvania with our price prediction graph.
Estimated round-trip 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 Australia

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

Currently, January is the cheapest month in which you can book a flight from Pennsylvania to Australia (average of $276). Flying from Pennsylvania to Australia in June is currently the most expensive (average of $878). 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.

What is the cheapest time of day to fly from PA to AU?

Find hourly flight availability from Pennsylvania to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 17, 2025.

One of the essential ways to save on airfare from Pennsylvania to Australia is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 12% on airfare.

What is the cheapest day to fly from Pennsylvania to Australia?

Use this chart to determine the cheapest time to fly round-trip from Pennsylvania to Australia. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Pennsylvania to Australia flight should consider departing on Sunday at noon when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

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

  • How long is the flight from Pennsylvania to Australia?

    A quick flight from Pennsylvania to Australia can take about 25h 20m. Delta provides one of the quickest options available for as low as $995. There are 9943 mi between Pennsylvania and Australia. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Pennsylvania to Australia one-way?

    The cheapest airline one-way is Qantas Airways, with whom users have recently found tickets for as low as $609. However, be on the lookout for offers from Fiji Airways and American Airlines, as they are both options that can get you from Pennsylvania to Australia for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Pennsylvania to Australia 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 Australia?

    Currently, January is the cheapest month in which you can book a flight from Pennsylvania to Australia (average of $276). Flying from Pennsylvania to Australia in June is currently the most expensive (average of $878). 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

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Alternative routes for Pennsylvania to Australia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Pennsylvania to Australia

Discover the top 8 airlines that operate flights from Pennsylvania to Australia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$535Average$879FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$647Average$1,565FlexibilityNo cancel feeOn-time69%
Qantas AirwaysCheapest$787Average$1,676FlexibilityNo cancel feeOn-time74%
Air CanadaCheapest$941Average$1,314FlexibilityNo cancel feeOn-time67%
Fiji AirwaysCheapest$945Average$1,486FlexibilityNo cancel feeOn-time74%
Air New ZealandCheapest$1,220Average$1,548FlexibilityNo cancel feeOn-time78%
American AirlinesCheapest$1,259Average$1,476FlexibilityNo cancel feeOn-time71%
Qatar AirwaysCheapest$1,296Average$1,608FlexibilityNo cancel feeOn-time68%

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