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$520+ 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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SYD
ene. 3 — ene. 101
sáb. 1/3
sáb. 1/10
1 adult, Economy
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Cheap 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 diciembre 4, 2025.

This American Airlines deal was found by Cheapflights users on 12/2. 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.
mar. 12/302:02 pmPHL - SYD
1 stop26h 58mAmerican Airlines
lun. 1/1911:20 amSYD - PHL
1 stop28h 28mAmerican Airlines
Deal found 12/2$1,045
This United Airlines deal was found by Cheapflights users on 12/2. 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.
dom. 12/71:15 pmPHL - MEL
2 stops28h 45mUnited Airlines
dom. 12/141:00 pmMEL - PHL
1 stop22h 41mUnited Airlines
Deal found 12/2$1,143
This United Airlines deal was found by Cheapflights users on 12/4. 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.
lun. 12/295:50 pmPHL - SYD
1 stop45h 10mUnited Airlines
jue. 1/152:00 pmSYD - PHL
1 stop23h 52mUnited Airlines
Deal found 12/4$1,145
This United Airlines deal was found by Cheapflights users on 12/2. 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.
sáb. 12/68:05 pmPHL - SYD
2 stops42h 15mUnited Airlines
mié. 12/1712:10 pmSYD - PHL
2 stops22h 58mUnited Airlines
Deal found 12/2$1,154
This Air Canada deal was found by Cheapflights users on 12/3. 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.
jue. 12/47:50 amPHL - SYD
2 stops33h 45mAir Canada
jue. 12/1111:20 amSYD - PHL
2 stops43h 30mAir Canada
Deal found 12/3$1,223
This Qantas Airways deal was found by Cheapflights users on 12/3. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/45:00 pmPHL - SYD
1 stop24h 00mQantas Airways
jue. 12/1111:20 amSYD - PHL
1 stop21h 58mQantas Airways
Deal found 12/3$1,233
This American Airlines deal was found by Cheapflights users on 12/3. 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.
jue. 12/43:40 pmPHL - SYD
2 stops25h 20mAmerican Airlines
jue. 12/1111:20 amSYD - PHL
1 stop28h 29mAmerican Airlines
Deal found 12/3$1,237
This Qantas Airways deal was found by Cheapflights users on 12/2. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/711:45 amPHL - MEL
1 stop25h 15mMultiple Airlines
dom. 12/144:05 pmMEL - PHL
1 stop22h 46mMultiple Airlines
Deal found 12/2$1,247
This Delta deal was found by Cheapflights users on 12/1. 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.
mié. 12/106:55 amPHL - MEL
2 stops33h 05mDelta
mié. 3/410:10 amMEL - PHL
2 stops23h 46mDelta
Deal found 12/1$1,284
This Delta deal was found by Cheapflights users on 12/3. 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.
mié. 12/317:00 amPHL - MEL
2 stops33h 00mDelta
dom. 2/1510:10 amMEL - PHL
2 stops27h 51mDelta
Deal found 12/3$1,325
This United Airlines deal was found by Cheapflights users on 12/3. 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.
lun. 12/298:15 amPHL - ADL
1 stop33h 45mUnited Airlines
mié. 1/282:55 pmADL - PHL
1 stop22h 27mUnited Airlines
Deal found 12/3$1,361
This Delta deal was found by Cheapflights users on 12/3. 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.
mié. 12/317:00 amPHL - MEL
2 stops33h 00mDelta
vie. 2/1310:10 amMEL - PHL
2 stops28h 40mDelta
Deal found 12/3$1,375

Find flight deals from Philadelphia to Australia

Keep the following information in mind while searching for Philadelphia to Australia flight deals. Data was last updated diciembre 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$969
(oojo)

One-way from

$520
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,963
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. 15% potential increase in price ($258 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($49 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 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 diciembre 4, 2025.
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

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

dom. 3/1

3:30 pm-9:35 am

2 stops26h 05m

Sydney Kingsford Smith

mié. 3/18

10:20 am-3:49 pm

2 stops44h 29m

$994

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

sáb. 1/24

2:30 pm-9:10 am

2 stops50h 40m

Sydney Kingsford Smith

lun. 2/9

11:20 am-8:16 pm

1 stop24h 56m

$1,007

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

mar. 3/24

3:30 pm-7:45 am

2 stops26h 15m

Brisbane

vie. 4/10

10:00 am-2:46 pm

2 stops42h 46m

$1,044

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

lun. 2/16

2:18 pm-9:00 am

1 stop26h 42m

Sydney Kingsford Smith

mar. 2/24

5:45 pm-11:37 pm

1 stop21h 52m

$1,045

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

lun. 3/2

3:00 pm-6:55 am

1 stop23h 55m

Sydney Kingsford Smith

lun. 3/16

11:20 am-8:00 pm

1 stop23h 40m

$1,045

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

dom. 3/1

3:00 pm-6:55 am

1 stop23h 55m

Sydney Kingsford Smith

mié. 3/18

11:20 am-8:00 pm

1 stop23h 40m

$1,045

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

lun. 3/2

3:00 pm-6:55 am

1 stop23h 55m

Sydney Kingsford Smith

dom. 3/15

5:45 pm-11:50 pm

1 stop21h 05m

$1,047

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

sáb. 1/17

3:35 pm-6:55 am

1 stop23h 20m

Sydney Kingsford Smith

vie. 1/30

11:20 am-8:16 pm

1 stop24h 56m

$1,048

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

mar. 3/24

7:50 am-11:30 am

3 stops37h 40m

Brisbane

vie. 4/10

10:00 am-2:46 pm

2 stops42h 46m

$1,070

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

sáb. 1/24

7:45 pm-6:20 am

2 stops42h 35m

Sydney Kingsford Smith

lun. 2/9

12:10 pm-9:38 am

2 stops37h 28m

$1,110

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Showing 1-10 of 60 results
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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, September is the cheapest month in which you can book a flight from Philadelphia to Australia (average of $168). Flying from Philadelphia to Australia in July is currently the most expensive (average of $886). 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 diciembre 4, 2025.

A simple way to save on the total cost of your ticket is to fly from Philadelphia to Australia in the evening. If you’re flexible enough to do this you can expect to save up to 21% on your trip compared to booking a flight at noon.

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

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

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

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 diciembre 4, 2025.
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
8.1
Very good
209 reviews

Crew

8.5

Boarding

8.2

Food

7.5

Comfort

8.0

Overall

8.1

Entertainment

7.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
Fiji Airways
8.1
Very good
209 reviews
Fiji Airways
8.1
Very good
209 reviews

Crew

8.5

Boarding

8.2

Food

7.5

Comfort

8.0

Overall

8.1

Entertainment

7.5

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
947 reviews
Fiji Airways
8.1
Very good
209 reviews

Crew

8.5

Boarding

8.2

Food

7.5

Comfort

8.0

Overall

8.1

Entertainment

7.5

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
9,066 reviews
Fiji Airways
8.1
Very good
209 reviews

Crew

8.5

Boarding

8.2

Food

7.5

Comfort

8.0

Overall

8.1

Entertainment

7.5

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
11,045 reviews
Fiji Airways
8.1
Very good
209 reviews

Crew

8.5

Boarding

8.2

Food

7.5

Comfort

8.0

Overall

8.1

Entertainment

7.5

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
10,500 reviews
Fiji Airways
8.1
Very good
209 reviews

Crew

8.5

Boarding

8.2

Food

7.5

Comfort

8.0

Overall

8.1

Entertainment

7.5

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?

    Air Canada, Qantas Airways, and American Airlines can get you from Philadelphia to Australia in just under 26h 05m. Your travel time can differ by up to 24h 35m. The distance between Philadelphia and Australia is about 9862 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 $749 and $1,036 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 - Adelaide.

  • 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, September is the cheapest month in which you can book a flight from Philadelphia to Australia (average of $168). Flying from Philadelphia to Australia in July is currently the most expensive (average of $886). 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 Philadelphia 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 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 diciembre 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$535Average$879FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$859Average$1,489FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$941Average$1,327FlexibilityNo cancel feeOn-time67%
Fiji AirwaysCheapest$945Average$1,486FlexibilityNo cancel feeOn-time74%
Qantas AirwaysCheapest$1,044Average$1,921FlexibilityNo 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$1,695FlexibilityNo cancel feeOn-time71%

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