HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Australia

$543+ 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 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SYD
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
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

Keep the following information in mind while searching for Philadelphia to Australia flight deals. Data was last updated January 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$932
(oojo)

One-way from

$543
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,681
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 ($190 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 8, 2026.

This oojo deal was found by Cheapflights users on 1/7. 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.
Fri 2/202:16 pmPHL - MEL
1 stop27h 14mQantas Airways
Wed 3/46:45 amMEL - PHL
2 stops33h 05mQantas Airways
Deal found 1/7$932
This oojo deal was found by Cheapflights users on 1/8. 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.
Sat 2/212:31 pmPHL - MEL
1 stop26h 59mQantas Airways
Wed 3/46:45 amMEL - PHL
2 stops29h 03mQantas Airways
Deal found 1/8$933
This oojo deal was found by Cheapflights users on 1/8. 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.
Wed 11/115:07 pmPHL - MEL
2 stops30h 28mQantas Airways
Mon 11/1612:00 pmMEL - PHL
1 stop35h 24mQantas Airways
Deal found 1/8$934
This oojo deal was found by Cheapflights users on 1/8. 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.
Wed 11/113:40 pmPHL - SYD
2 stops31h 10mQantas Airways
Mon 11/1611:15 amSYD - PHL
1 stop28h 31mQantas Airways
Deal found 1/8$941
This oojo deal was found by Cheapflights users on 1/8. 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.
Sat 3/75:05 pmPHL - BNE
2 stops47h 25mQantas Airways
Sat 3/147:40 pmBNE - PHL
1 stop24h 11mQantas Airways
Deal found 1/8$953
This oojo deal was found by Cheapflights users on 1/7. 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.
Sun 2/12:30 pmPHL - BNE
2 stops50h 00mQantas Airways
Sun 2/157:40 pmBNE - PHL
1 stop26h 15mQantas Airways
Deal found 1/7$957
This oojo deal was found by Cheapflights users on 1/6. 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 2/232:16 pmPHL - SYD
2 stops38h 34mQantas Airways
Tue 3/311:20 amSYD - PHL
1 stop28h 30mQantas Airways
Deal found 1/6$962
This oojo deal was found by Cheapflights users on 1/8. 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.
Sun 2/222:16 pmPHL - BNE
1 stop23h 44mQantas Airways
Sun 3/16:30 pmBNE - PHL
2 stops44h 20mQantas Airways
Deal found 1/8$968
This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
Sun 3/15:17 pmPHL - MEL
2 stops30h 18mQantas Airways
Sun 3/812:00 pmMEL - PHL
1 stop32h 51mQantas Airways
Deal found 1/7$968
This oojo deal was found by Cheapflights users on 1/8. 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 2/162:16 pmPHL - SYD
2 stops51h 49mQantas Airways
Tue 2/249:25 pmSYD - PHL
1 stop26h 43mQantas Airways
Deal found 1/8$970
This SmartFares deal was found by Cheapflights users on 1/7. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1112:08 pmPHL - BNE
2 stops38h 02mQantas Airways
Thu 3/57:40 pmBNE - PHL
1 stop26h 15mQantas Airways
Deal found 1/7$980
This United Airlines deal was found by Cheapflights users on 1/8. 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.
Sun 3/18:00 amPHL - SYD
1 stop31h 00mUnited Airlines
Tue 3/2410:25 amSYD - PHL
2 stops28h 05mUnited Airlines
Deal found 1/8$998

Cheapflights Fare Finder

 
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 8, 2026.
Use the filters below to find and compare flights from Philadelphia to Australia that are best for you.

Fly from

Philadelphia

Fly to

Australia

Route

Depart

Return

Price

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Sat 2/21

2:31 pm-9:30 am

1 stop26h 59m

Melbourne

Wed 3/4

6:45 am-7:48 pm

2 stops29h 03m

$932

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Sat 3/7

5:05 pm-7:30 am

2 stops47h 25m

Brisbane

Sat 3/14

7:40 pm-5:51 am

1 stop24h 11m

$953

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Sun 2/1

2:30 pm-5:00 am

1 stop23h 30m

Brisbane

Sun 2/15

6:30 pm-6:55 am

2 stops51h 25m

$957

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Mon 2/9

2:30 pm-7:30 am

2 stops50h 00m

Brisbane

Fri 3/6

7:40 pm-6:00 am

1 stop25h 20m

$957

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sun 3/1

8:00 am-7:00 am

1 stop31h 00m

Sydney Kingsford Smith

Tue 3/24

2:00 pm-9:31 pm

1 stop22h 31m

$998

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Wed 6/3

6:13 pm-6:55 am

1 stop22h 42m

Sydney Kingsford Smith

Wed 6/10

9:30 am-5:16 am

2 stops33h 46m

$1,001

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sun 3/1

8:00 am-7:00 am

1 stop31h 00m

Sydney Kingsford Smith

Sun 3/8

10:20 am-11:16 pm

2 stops28h 56m

$1,002

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 3/2

12:55 pm-9:15 am

2 stops28h 20m

Sydney Kingsford Smith

Mon 3/16

10:25 am-7:15 am

2 stops35h 50m

$1,002

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Sat 2/21

2:31 pm-5:00 am

1 stop23h 29m

Brisbane

Wed 2/25

6:30 pm-7:48 pm

2 stops40h 18m

$1,002

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sat 3/7

6:20 pm-6:20 am

1 stop44h 00m

Sydney Kingsford Smith

Sun 3/22

11:50 am-9:47 am

2 stops36h 57m

$1,012

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/8

Showing 1-10 of 60 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.

Cheapflights Insights

Everything you need to know about your flight from Philadelphia to Australia

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 $138). Flying from Philadelphia to Australia in January is currently the most expensive (average of $954). 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.

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 8, 2026.
See what other customers who have flown with Fiji Airways, Qantas Airways, and United Airlines from Philadelphia to Australia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Fiji Airways
8.0
Very good
216 reviews

Comfort

8.0

Entertainment

7.5

Food

7.5

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
Fiji Airways
8.0
Very good
216 reviews
Fiji Airways
8.0
Very good
216 reviews

Comfort

8.0

Entertainment

7.5

Food

7.5

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
Qantas Airways
7.5
Good
968 reviews
Fiji Airways
8.0
Very good
216 reviews

Comfort

8.0

Entertainment

7.5

Food

7.5

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
United Airlines
7.4
Good
9,143 reviews
Fiji Airways
8.0
Very good
216 reviews

Comfort

8.0

Entertainment

7.5

Food

7.5

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
American Airlines
7.2
Good
11,097 reviews
Fiji Airways
8.0
Very good
216 reviews

Comfort

8.0

Entertainment

7.5

Food

7.5

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
Air Canada
7.1
Good
10,603 reviews
Fiji Airways
8.0
Very good
216 reviews

Comfort

8.0

Entertainment

7.5

Food

7.5

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.

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.

  • How long is the flight from Philadelphia to Australia?

    Qantas Airways, United Airlines, and Qatar Airways can get you from Philadelphia to Australia in just under 26h 59m. Your travel time can differ by up to 7h 06m. The distance between Philadelphia and Australia is about 10283 mi. This flight may include one or multiple stops.

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

    For one-way options, check prices for Fiji Airways. According to our data, you can fly for as low as $623. Users have also found prices from $628 and $772 on Qantas Airways and American Airlines, 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 - Melbourne Avalon.

  • 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 $138). Flying from Philadelphia to Australia in January is currently the most expensive (average of $954). 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 Auckland flights
John F Kennedy Intl to Sydney flights
Newark to Sydney flights
LaGuardia to Sydney flights
John F Kennedy Intl to Melbourne flights
Dulles Intl to Sydney flights
Newark to Auckland flights
Newark to Melbourne flights
LaGuardia to Auckland flights
Dulles Intl to Melbourne flights
Dulles Intl to Auckland flights
Reagan-National to Sydney flights
LaGuardia to Melbourne flights
Reagan-National to Auckland flights
John F Kennedy Intl to Brisbane flights
Reagan-National to Melbourne flights
Newark to Brisbane flights
John F Kennedy Intl to Avalon flights
John F Kennedy Intl to Papeete flights
LaGuardia to Brisbane flights
Philadelphia to Sydney flights
Newark to Papeete flights
LaGuardia to Papeete flights
Philadelphia to Auckland flights
Dulles Intl to Avalon flights
Dulles Intl to Brisbane flights
John F Kennedy Intl to Perth flights
John F Kennedy Intl to Vaitape flights
Reagan-National to Brisbane flights
Pittsburgh to Melbourne flights
John F Kennedy Intl to Nadi flights
John F Kennedy Intl to Christchurch flights
Newark to Christchurch flights
Pittsburgh to Sydney flights
LaGuardia to Christchurch flights
Newark to Vaitape flights
Newark to Nadi flights
LaGuardia to Nadi flights
Philadelphia to Melbourne flights
Dulles Intl to Nadi flights
LaGuardia to Perth flights
Dulles Intl to Tamuning flights
Philadelphia to Papeete flights
Pittsburgh to Auckland flights
Newark to Perth flights
Newark to Avalon flights
Dulles Intl to Papeete flights
Newark to Queenstown flights
Reagan-National 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 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$535Average$879FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$859Average$1,503FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$941Average$1,310FlexibilityNo cancel feeOn-time67%
Fiji AirwaysCheapest$945Average$1,491FlexibilityNo cancel feeOn-time74%
Qantas AirwaysCheapest$1,044Average$1,874FlexibilityNo cancel feeOn-time74%
Air New ZealandCheapest$1,220Average$1,548FlexibilityNo cancel feeOn-time78%
Qatar AirwaysCheapest$1,296Average$1,608FlexibilityNo cancel feeOn-time68%
American AirlinesCheapest$1,350Average$1,612FlexibilityNo cancel feeOn-time71%

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.