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$610+ 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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SYD
ene. 11 — ene. 181
dom. 1/11
dom. 1/18
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 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/10. 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 12/10$1,146
This Delta deal was found by Cheapflights users on 12/10. 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. 12/2411:40 amPHL - SYD
2 stops51h 10mDelta
mié. 12/3110:40 amSYD - PHL
2 stops38h 45mDelta
Deal found 12/10$1,286
This oojo deal was found by Cheapflights users on 12/10. 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.
jue. 12/115:00 pmPHL - SYD
2 stops29h 50mQantas Airways
jue. 12/187:15 pmSYD - PHL
2 stops35h 23mQantas Airways
Deal found 12/10$1,423
This United Airlines deal was found by Cheapflights users on 12/9. 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.
jue. 12/256:25 pmPHL - ADL
1 stop23h 35mUnited Airlines
lun. 1/122:55 pmADL - PHL
1 stop22h 27mUnited Airlines
Deal found 12/9$1,438
This oojo deal was found by Cheapflights users on 12/10. 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.
jue. 12/113:13 pmPHL - BNE
2 stops34h 57mQantas Airways
jue. 12/188:30 amBNE - PHL
2 stops45h 08mQantas Airways
Deal found 12/10$1,440
This Qantas Airways deal was found by Cheapflights users on 12/10. 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.
mié. 12/242:30 pmPHL - SYD
2 stops39h 00mQantas Airways
mié. 12/315:45 pmSYD - PHL
1 stop29h 43mQantas Airways
Deal found 12/10$1,680
This United Airlines deal was found by Cheapflights users on 12/10. 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.
mié. 12/2412:37 pmPHL - SYD
3 stops28h 28mUnited Airlines
mié. 12/312:00 pmSYD - PHL
2 stops40h 11mUnited Airlines
Deal found 12/10$1,742
This Air Canada deal was found by Cheapflights users on 12/10. 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. 12/1112:45 pmPHL - BNE
2 stops29h 00mMultiple Airlines
jue. 12/186:10 amBNE - PHL
3 stops31h 36mMultiple Airlines
Deal found 12/10$1,867
This Delta deal was found by Cheapflights users on 12/10. 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. 12/246:05 amPHL - SYD
2 stops56h 45mDelta
mar. 1/610:40 amSYD - PHL
2 stops39h 51mDelta
Deal found 12/10$1,868
This United Airlines deal was found by Cheapflights users on 12/10. 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.
mié. 12/2412:37 pmPHL - SYD
2 stops28h 28mUnited Airlines
lun. 1/511:50 amSYD - PHL
2 stops37h 47mUnited Airlines
Deal found 12/10$1,917
This Air Canada deal was found by Cheapflights users on 12/11. 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.
lun. 12/297:50 amPHL - SYD
2 stops33h 45mAir Canada
jue. 1/154:00 pmSYD - PHL
2 stops38h 47mAir Canada
Deal found 12/11$1,970
This KAYAK deal was found by Cheapflights users on 12/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/166:15 amPHL - MEL
2 stops47h 15mAir New Zealand
dom. 1/119:00 pmMEL - PHL
2 stops40h 52mAir New Zealand
Deal found 12/11$2,816

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 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$970
(oojo)

One-way from

$610
(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 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 ($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 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 12, 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

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

sáb. 1/24

2:30 pm-7:30 am

2 stops50h 00m

Brisbane

sáb. 1/31

7:40 pm-7:01 am

1 stop26h 21m

$970

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

mar. 3/24

5:17 pm-5:10 pm

2 stops33h 53m

Brisbane

vie. 4/10

8:35 pm-7:10 am

1 stop24h 35m

$971

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

lun. 2/23

2:18 pm-9:00 am

1 stop26h 42m

Sydney Kingsford Smith

mar. 3/3

7:15 pm-5:47 pm

2 stops38h 32m

$975

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

lun. 2/16

2:23 pm-9:00 am

1 stop26h 37m

Sydney Kingsford Smith

mar. 2/24

2:05 pm-7:47 pm

1 stop21h 42m

$1,036

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

jue. 3/12

12:45 pm-12:40 pm

2 stops32h 55m

Sydney Kingsford Smith

mié. 3/25

11:45 am-11:05 pm

2 stops26h 20m

$1,054

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

dom. 3/1

4:00 pm-6:55 am

1 stop22h 55m

Sydney Kingsford Smith

dom. 5/31

12:00 pm-9:05 pm

1 stop23h 05m

$1,118

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

dom. 1/25

12:40 pm-8:45 am

2 stops29h 05m

Brisbane

dom. 2/1

10:45 am-2:47 pm

2 stops43h 02m

$1,131

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

sáb. 1/17

7:45 pm-6:20 am

2 stops42h 35m

Sydney Kingsford Smith

sáb. 1/31

2:00 pm-11:30 pm

2 stops25h 30m

$1,142

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

sáb. 1/24

12:16 pm-8:30 am

2 stops28h 14m

Sydney Kingsford Smith

dom. 2/1

10:40 am-8:40 pm

2 stops26h 00m

$1,143

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

sáb. 1/24

2:30 pm-8:30 am

2 stops26h 00m

Sydney Kingsford Smith

lun. 2/9

10:40 am-8:40 pm

2 stops26h 00m

$1,143

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 57 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, February is the cheapest month in which you can book a flight from Philadelphia to Australia (average of $154). Flying from Philadelphia to Australia in January is currently the most expensive (average of $949). 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 12, 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 12, 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
210 reviews

Boarding

8.2

Food

7.5

Entertainment

7.5

Crew

8.5

Comfort

8.0

Overall

8.1

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
210 reviews
Fiji Airways
8.1
Very good
210 reviews

Boarding

8.2

Food

7.5

Entertainment

7.5

Crew

8.5

Comfort

8.0

Overall

8.1

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
210 reviews

Boarding

8.2

Food

7.5

Entertainment

7.5

Crew

8.5

Comfort

8.0

Overall

8.1

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
9,095 reviews
Fiji Airways
8.1
Very good
210 reviews

Boarding

8.2

Food

7.5

Entertainment

7.5

Crew

8.5

Comfort

8.0

Overall

8.1

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
11,050 reviews
Fiji Airways
8.1
Very good
210 reviews

Boarding

8.2

Food

7.5

Entertainment

7.5

Crew

8.5

Comfort

8.0

Overall

8.1

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
10,516 reviews
Fiji Airways
8.1
Very good
210 reviews

Boarding

8.2

Food

7.5

Entertainment

7.5

Crew

8.5

Comfort

8.0

Overall

8.1

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, Air New Zealand, and United Airlines can get you from Philadelphia to Australia in just under 32h 55m. Your travel time can differ by up to 17h 05m. 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 - 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 $154). Flying from Philadelphia to Australia in January is currently the most expensive (average of $949). 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 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$535Average$879FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$859Average$1,489FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$941Average$1,319FlexibilityNo cancel feeOn-time67%
Fiji AirwaysCheapest$945Average$1,486FlexibilityNo cancel feeOn-time74%
Qantas AirwaysCheapest$1,044Average$1,917FlexibilityNo 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$1,682FlexibilityNo cancel feeOn-time71%

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