HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Australia

$476+ Cheap flights from Philadelphia (PHL) 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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SYD
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Philadelphia to Australia with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Philadelphia to Australia

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Australia (AU0). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$848
(United Airlines)

One-way from

$476
(Mytrip)

Popular in

December

Cheapest in

March

Average price

$1,665
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 Philadelphia to Australia
Search Deals
One-way flight from Philadelphia to Australia
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($194 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($50 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2025
Search Deals

Find flight deals from Philadelphia to Australia

Cheapest flights from Philadelphia to Australia
Explore the most affordable flight options available from Philadelphia to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 30, 2025.

This United Airlines deal was found by Cheapflights users on 1/29. 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.
Mon 2/108:00 amPHL - SYD
1 stop31h 00mUnited Airlines
Mon 2/2412:10 pmSYD - PHL
1 stop25h 32mUnited Airlines
Deal found 1/29$848
This Delta deal was found by Cheapflights users on 1/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/146:00 amPHL - BNE
2 stops34h 45mDelta
Fri 3/289:45 amBNE - PHL
2 stops29h 04mDelta
Deal found 1/29$874
This Mytrip deal was found by Cheapflights users on 1/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/1510:03 amPHL - BNE
3 stops34h 17mMultiple Airlines
Sat 3/226:10 amBNE - PHL
3 stops31h 49mMultiple Airlines
Deal found 1/29$1,048
This Mytrip deal was found by Cheapflights users on 1/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/1510:03 amPHL - MEL
3 stops35h 12mMultiple Airlines
Sat 3/228:20 pmMEL - PHL
3 stops42h 39mMultiple Airlines
Deal found 1/28$1,065
This Air Canada deal was found by Cheapflights users on 1/30. 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 4/233:30 pmPHL - BNE
2 stops25h 30mAir Canada
Tue 5/610:00 amBNE - PHL
2 stops42h 36mAir Canada
Deal found 1/30$1,103
This Air Canada deal was found by Cheapflights users on 1/29. 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.
Mon 2/33:30 pmPHL - SYD
2 stops26h 05mAir Canada
Mon 2/1011:20 amSYD - PHL
3 stops43h 30mAir Canada
Deal found 1/29$1,104
This Kiwi.com deal was found by Cheapflights users on 1/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/16:00 amPHL - SYD
1 stop33h 35mMultiple Airlines
Sat 4/52:45 pmSYD - PHL
2 stops24h 14mMultiple Airlines
Deal found 1/29$1,107
This Gurufare deal was found by Cheapflights users on 1/29. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/265:35 pmPHL - SYD
2 stops27h 00mAir New Zealand
Tue 9/29:55 amSYD - PHL
2 stops35h 26mAir New Zealand
Deal found 1/29$1,217
This FlightHub deal was found by Cheapflights users on 1/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/186:49 pmPHL - BNE
2 stops37h 46mFiji Airways
Tue 4/111:35 amBNE - PHL
2 stops25h 36mFiji Airways
Deal found 1/29$1,239
This Fiji Airways deal was found by Cheapflights users on 1/30. 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 Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/266:41 pmPHL - MEL
2 stops26h 49mFiji Airways
Fri 9/1211:35 pmMEL - PHL
2 stops37h 07mFiji Airways
Deal found 1/30$1,266
This Cheapflightsfares deal was found by Cheapflights users on 1/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/265:35 pmPHL - SYD
1 stop23h 30mQantas Airways
Tue 9/29:10 amSYD - PHL
1 stop22h 10mQantas Airways
Deal found 1/29$1,293
This American Airlines deal was found by Cheapflights users on 1/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/201:55 pmPHL - BNE
1 stop25h 05mAmerican Airlines
Wed 4/3010:00 pmBNE - PHL
1 stop23h 10mAmerican Airlines
Deal found 1/29$1,342

Find flights from Philadelphia to Australia within your budget

Customize your flight search to find flights from Philadelphia 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 January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 2/10

8:00 am-7:00 am

1 stop31h 00m

Sydney Kingsford Smith

Mon 2/24

12:10 pm-9:42 pm

1 stop25h 32m

$848

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Fri 3/14

6:00 am-6:45 am

2 stops34h 45m

Brisbane

Fri 3/28

9:45 am-12:49 am

2 stops29h 04m

$874

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Sat 3/15

10:03 am-10:20 am

3 stops34h 17m

Brisbane

Sat 3/22

6:10 am-11:59 pm

3 stops31h 49m

$1,048

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Sat 3/15

10:03 am-12:15 pm

3 stops35h 12m

Melbourne

Sat 3/22

8:20 pm-11:59 pm

3 stops42h 39m

$1,065

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Wed 4/23

3:30 pm-7:00 am

2 stops25h 30m

Brisbane

Tue 5/6

10:00 am-2:36 pm

2 stops42h 36m

$1,103

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 2/25

3:30 pm-9:35 am

2 stops26h 05m

Sydney Kingsford Smith

Tue 3/11

10:30 am-2:50 pm

3 stops43h 20m

$1,104

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 4/1

6:00 am-6:35 am

1 stop33h 35m

Sydney Kingsford Smith

Sat 4/5

2:45 pm-11:59 pm

2 stops24h 14m

$1,107

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 4/1

5:00 pm-12:45 pm

2 stops28h 45m

Sydney Kingsford Smith

Sat 4/5

6:00 am-10:57 pm

2 stops31h 57m

$1,201

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Tue 3/18

6:49 pm-10:35 pm

2 stops37h 46m

Brisbane

Tue 4/1

11:35 am-11:11 pm

2 stops25h 36m

$1,239

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 3/17

5:13 pm-9:00 am

1 stop24h 47m

Sydney Kingsford Smith

Mon 3/31

10:10 am-5:22 pm

1 stop22h 12m

$1,293

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Showing 1-10 of 53 results
1
2
3
...
6

Best time to book a flight from Philadelphia to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia from Philadelphia 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.

Travel insights for flights from Philadelphia to Australia

Get recent, data-driven insights about flights from Philadelphia to Australia including ideal travel times, pricing trends, and more.

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

Currently, February is the cheapest month in which you can book a flight from Philadelphia to Australia (average of $1,051). Flying from Philadelphia to Australia in December is currently the most expensive (average of $1,643). 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 PHL to AU?

Find hourly flight availability from Philadelphia 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 January 30, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Philadelphia to Australia as you normally would.

Rainfall in Australia by month

Plan your trip to Australia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Australia ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Australia when rainfall is around 2.0 in.

Temperature in Australia by month

Plan your trip to Australia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Australia, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Australia

Get insights into the airlines that provide service to Australia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Australia. Reviews last updated January 30, 2025.
Read reviews from past customers who have flown Air Tahiti Nui, Alaska Airlines and Fiji Airways from Philadelphia to Australia. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.7
Very good
61 reviews

Food

7.8

Boarding

8.7

Overall

8.7

Crew

9.1

Comfort

8.0

Entertainment

7.2

Reviews

1 / 2

10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Air Tahiti Nui
8.7
Very good
61 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Food

7.8

Boarding

8.7

Overall

8.7

Crew

9.1

Comfort

8.0

Entertainment

7.2

Reviews

1 / 2

10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Alaska Airlines
8.0
Very good
9,688 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Food

7.8

Boarding

8.7

Overall

8.7

Crew

9.1

Comfort

8.0

Entertainment

7.2

Reviews

1 / 2

10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Fiji Airways
8.0
Very good
186 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Food

7.8

Boarding

8.7

Overall

8.7

Crew

9.1

Comfort

8.0

Entertainment

7.2

Reviews

1 / 2

10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Delta
8.0
Very good
8,454 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Food

7.8

Boarding

8.7

Overall

8.7

Crew

9.1

Comfort

8.0

Entertainment

7.2

Reviews

1 / 2

10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Air New Zealand
7.9
Good
481 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Food

7.8

Boarding

8.7

Overall

8.7

Crew

9.1

Comfort

8.0

Entertainment

7.2

Reviews

1 / 2

10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Australia. 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 from for flights from Philadelphia to Australia?

    Most people fly from Philadelphia (PHL) if they book a flight from Philadelphia to Australia. Philadelphia is conveniently located just 7.0 mi from Philadelphia’s city center.

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

    For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as $615. Users have also found prices from $662 and $946 on Fiji Airways and Qatar Airways, respectively.

  • What are the most popular routes from Philadelphia to Australia?

    The most popular route from Philadelphia to Australia is Philadelphia - Sydney Kingsford Smith. You may also consider Philadelphia - Melbourne or Philadelphia - Brisbane.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Philadelphia to Australia (average of $1,051). Flying from Philadelphia to Australia in December is currently the most expensive (average of $1,643). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Philadelphia to Australia

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Sydney flights
John F Kennedy Intl to Melbourne flights
Dulles Intl to Sydney flights
Newark to Sydney flights
Reagan-National to Sydney flights
LaGuardia to Sydney flights
John F Kennedy Intl to Auckland flights
Newark to Melbourne flights
LaGuardia to Melbourne flights
Dulles Intl to Melbourne flights
Newark to Auckland flights
Reagan-National to Melbourne flights
LaGuardia to Auckland flights
John F Kennedy Intl to Brisbane flights
John F Kennedy Intl to Avalon flights
Newark to Brisbane flights
Dulles Intl to Auckland flights
LaGuardia to Brisbane flights
Reagan-National to Auckland flights
Dulles Intl to Brisbane flights
Philadelphia to Sydney flights
Reagan-National to Brisbane flights
John F Kennedy Intl to Papeete flights
Dulles Intl to Christchurch flights
Philadelphia to Auckland flights
Dulles Intl to Avalon flights
John F Kennedy Intl to Nadi flights
Newark to Papeete flights
Reagan-National to Christchurch flights
Reagan-National to Nadi flights
John F Kennedy Intl to Vaitape flights
Dulles Intl to Nadi flights
LaGuardia to Nadi flights
Pittsburgh to Sydney flights
Newark to Nadi flights
John F Kennedy Intl to Christchurch flights
LaGuardia to Papeete flights
Newark to Christchurch flights
Newark to Vaitape flights
Newark to Perth flights
LaGuardia to Christchurch flights
Philadelphia to Papeete flights
Philadelphia to Melbourne flights
LaGuardia to Perth flights
Pittsburgh to Melbourne flights
Dulles Intl to Tamuning flights
Dulles Intl to Perth flights
John F Kennedy Intl to Perth flights
Dulles Intl to Papeete flights

Top 8 airlines flying from Philadelphia to Australia

Discover the top 8 airlines that operate flights from Philadelphia 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 January 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$337Average$1,808FlexibilityNo cancel feeOn-time71%
DeltaCheapest$717Average$1,067FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$925Average$1,666FlexibilityNo cancel feeOn-time69%
Fiji AirwaysCheapest$945Average$1,261FlexibilityNo cancel feeOn-time74%
Air CanadaCheapest$1,022Average$1,420FlexibilityNo cancel feeOn-time67%
Air New ZealandCheapest$1,133Average$1,794FlexibilityNo cancel feeOn-time78%
Qantas AirwaysCheapest$1,336Average$2,153FlexibilityNo cancel feeOn-time74%
Qatar AirwaysCheapest$1,382Average$1,674FlexibilityNo cancel feeOn-time68%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.