$649+ Cheap flights from Philadelphia (PHL) to Sydney (SYD)
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 11/16. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SYD
Aug 22 — Aug 291
Round-trip
1 adult, Economy
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Find cheap flights from Philadelphia to Sydney with Cheapflights
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Cheapest flights from Philadelphia to SydneyExplore the most affordable flight options available from Philadelphia to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 23, 2026.
Explore the most affordable flight options available from Philadelphia to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 23, 2026.
This FlightHub deal was found by Cheapflights users on 7/22. 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.
Wed 11/2510:50 am
PHL
- SYD
1 stop27h 35m
Qantas Airways
Sat 12/127:05 am
SYD
- PHL
2 stops29h 00m
Qantas Airways
Deal found 7/22![Qantas Airways logo]()
$1,123
This oojo deal was found by Cheapflights users on 7/21. 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 10/243:57 pm
PHL
- SYD
1 stop26h 03m
Qantas Airways
Sat 11/712:45 pm
SYD
- PHL
2 stops42h 10m
Qantas Airways
Deal found 7/21![Qantas Airways logo]()
$1,150
This oojo deal was found by Cheapflights users on 7/23. 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 11/13:55 pm
PHL
- SYD
1 stop25h 05m
Qantas Airways
Sat 11/712:45 pm
SYD
- PHL
2 stops42h 10m
Qantas Airways
Deal found 7/23![Qantas Airways logo]()
$1,153
This Air Canada deal was found by Cheapflights users on 7/22. 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 7/2710:05 am
PHL
- SYD
2 stops31h 15m
Air Canada
Sun 8/29:20 am
SYD
- PHL
2 stops43h 29m
Air Canada
Deal found 7/22![Air Canada logo]()
$1,168
This Air Canada deal was found by Cheapflights users on 7/23. 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 9/1610:05 am
PHL
- SYD
2 stops31h 15m
Air Canada
Tue 9/299:20 am
SYD
- PHL
2 stops43h 27m
Air Canada
Deal found 7/23![Air Canada logo]()
$1,169
This Expedia deal was found by Cheapflights users on 7/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/264:20 pm
PHL
- SYD
2 stops49h 00m
Air Canada
Sun 8/29:20 am
SYD
- PHL
2 stops27h 26m
Air Canada
Deal found 7/21![Air Canada logo]()
$1,178
This Air Canada deal was found by Cheapflights users on 7/22. 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.
Sun 11/83:20 pm
PHL
- SYD
3 stops50h 15m
Air Canada
Wed 11/1811:20 am
SYD
- PHL
3 stops43h 24m
Air Canada
Deal found 7/22![Air Canada logo]()
$1,185
This Air Canada deal was found by Cheapflights users on 7/22. 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.
Tue 11/1711:24 am
PHL
- SYD
3 stops30h 11m
Multiple Airlines
Tue 11/2411:20 am
SYD
- PHL
3 stops43h 24m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$1,196
This Air Canada deal was found by Cheapflights users on 7/22. 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.
Thu 11/53:20 pm
PHL
- SYD
2 stops26h 15m
Air Canada
Sun 11/1511:20 am
SYD
- PHL
2 stops43h 24m
Air Canada
Deal found 7/22![Air Canada logo]()
$1,205
This Air Canada deal was found by Cheapflights users on 7/23. 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.
Sun 11/13:20 pm
PHL
- SYD
2 stops26h 15m
Air Canada
Sat 11/711:20 am
SYD
- PHL
2 stops43h 24m
Air Canada
Deal found 7/23![Air Canada logo]()
$1,206
Best flights from Philadelphia to SydneyDiscover carefully curated flight deals from Philadelphia to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 23, 2026.
Discover carefully curated flight deals from Philadelphia to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 23, 2026.
This United Airlines deal was found by Cheapflights users on 7/23. 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 8/98:05 am
PHL
- SYD
2 stops32h 50m
United Airlines
Sun 8/1610:20 am
SYD
- PHL
1 stop24h 35m
United Airlines
Deal found 7/23![United Airlines logo]()
$1,250
This Qatar Airways deal was found by Cheapflights users on 7/22. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/249:30 pm
PHL
- SYD
1 stop29h 40m
Qatar Airways
Mon 8/317:00 pm
SYD
- PHL
2 stops33h 30m
Qatar Airways
Deal found 7/22![Qatar Airways logo]()
$1,714
This Air New Zealand deal was found by Cheapflights users on 7/20. 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 New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/259:27 am
PHL
- SYD
2 stops35h 13m
Multiple Airlines
Tue 9/19:55 am
SYD
- PHL
3 stops40h 28m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$2,097
This United Airlines deal was found by Cheapflights users on 7/23. 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 9/66:16 am
PHL
- SYD
3 stops34h 39m
United Airlines
Sun 9/139:30 am
SYD
- PHL
2 stops25h 25m
United Airlines
Deal found 7/23![United Airlines logo]()
$1,250
This British Airways deal was found by Cheapflights users on 7/21. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:33 pm
PHL
- SYD
3 stops46h 22m
British Airways
Sat 11/74:20 pm
SYD
- PHL
3 stops44h 40m
British Airways
Deal found 7/21![British Airways logo]()
$3,143
This United Airlines deal was found by Cheapflights users on 7/19. 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 12/108:15 am
PHL
- SYD
2 stops32h 50m
United Airlines
Wed 12/2311:20 am
SYD
- PHL
2 stops28h 24m
United Airlines
Deal found 7/19![United Airlines logo]()
$1,572
This United Airlines deal was found by Cheapflights users on 7/21. 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 12/246:13 pm
PHL
- SYD
1 stop44h 07m
United Airlines
Sat 1/911:50 am
SYD
- PHL
3 stops40h 35m
United Airlines
Deal found 7/21![United Airlines logo]()
$1,636
This Air New Zealand deal was found by Cheapflights users on 7/19. 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 New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/259:45 am
PHL
- SYD
3 stops32h 50m
Multiple Airlines
Tue 1/511:50 am
SYD
- PHL
3 stops38h 37m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$2,541
This Air New Zealand deal was found by Cheapflights users on 7/21. 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 New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/289:30 am
PHL
- SYD
2 stops31h 05m
Multiple Airlines
Fri 1/811:50 am
SYD
- PHL
3 stops27h 23m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$2,641
This Air New Zealand deal was found by Cheapflights users on 7/21. 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 New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/249:30 am
PHL
- SYD
2 stops31h 05m
Multiple Airlines
Sun 1/102:05 pm
SYD
- PHL
3 stops38h 20m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$2,647
This British Airways deal was found by Cheapflights users on 7/19. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:55 pm
PHL
- SYD
3 stops46h 10m
British Airways
Sun 9/202:35 pm
SYD
- PHL
3 stops43h 41m
British Airways
Deal found 7/19![British Airways logo]()
$3,251
This British Airways deal was found by Cheapflights users on 7/21. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/144:04 pm
PHL
- SYD
3 stops48h 01m
British Airways
Sun 9/272:35 pm
SYD
- PHL
3 stops44h 35m
British Airways
Deal found 7/21![British Airways logo]()
$3,251
Last-minute flights from Philadelphia to SydneyDiscover last-minute flight deals from Philadelphia to Sydney. Data last updated July 23, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to Sydney. Data last updated July 23, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 7/21. 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 7/2510:05 pm
PHL
- SYD
1 stop43h 00m
Qantas Airways
Sun 8/29:10 am
SYD
- PHL
1 stop25h 29m
Qantas Airways
Deal found 7/21![Qantas Airways logo]()
$1,237
This Expedia deal was found by Cheapflights users on 7/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/264:20 pm
PHL
- SYD
2 stops49h 00m
Air Canada
Sun 8/29:20 am
SYD
- PHL
2 stops27h 26m
Air Canada
Deal found 7/21![Air Canada logo]()
$1,178
This Air Canada deal was found by Cheapflights users on 7/22. 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 7/2710:05 am
PHL
- SYD
2 stops31h 15m
Air Canada
Sun 8/29:20 am
SYD
- PHL
2 stops43h 29m
Air Canada
Deal found 7/22![Air Canada logo]()
$1,168
This oojo deal was found by Cheapflights users on 7/22. 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 7/273:35 pm
PHL
- SYD
1 stop25h 30m
Qantas Airways
Sun 8/29:10 am
SYD
- PHL
1 stop25h 29m
Qantas Airways
Deal found 7/22![Qantas Airways logo]()
$1,215
This oojo deal was found by Cheapflights users on 7/23. 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 8/34:22 pm
PHL
- SYD
1 stop24h 33m
Qantas Airways
Tue 9/156:00 am
SYD
- PHL
2 stops39h 05m
Qantas Airways
Deal found 7/23![Qantas Airways logo]()
$1,238
This oojo deal was found by Cheapflights users on 7/20. 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 8/173:37 pm
PHL
- SYD
1 stop25h 28m
Qantas Airways
Mon 8/249:10 am
SYD
- PHL
1 stop23h 24m
Qantas Airways
Deal found 7/20![Qantas Airways logo]()
$1,212
This oojo deal was found by Cheapflights users on 7/20. 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 8/186:00 pm
PHL
- SYD
1 stop22h 25m
Qantas Airways
Sun 8/305:10 pm
SYD
- PHL
2 stops27h 54m
Qantas Airways
Deal found 7/20![Qantas Airways logo]()
$1,234
This American Airlines deal was found by Cheapflights users on 7/21. 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 8/236:00 pm
PHL
- SYD
1 stop22h 25m
American Airlines
Sun 9/69:10 am
SYD
- PHL
1 stop21h 10m
American Airlines
Deal found 7/21![American Airlines logo]()
$1,232
One-way flights from Philadelphia to SydneySearch for one-way flight options from Philadelphia to Sydney. Find affordable one-way fares based on user searches. Data last updated July 23, 2026.
Search for one-way flight options from Philadelphia to Sydney. Find affordable one-way fares based on user searches. Data last updated July 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/22. 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.
Mon 11/165:28 pm
PHL
- SYD
3 stops58h 47m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$649
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Thu 9/38:15 am
PHL
- SYD
3 stops45h 50m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$665
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 8/308:37 pm
PHL
- SYD
3 stops46h 48m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$702
This Kiwi.com deal was found by Cheapflights users on 7/20. 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.
Sat 10/175:38 pm
PHL
- SYD
3 stops59h 32m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$719
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 9/18:30 am
PHL
- SYD
3 stops44h 40m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$725
This Kiwi.com deal was found by Cheapflights users on 7/19. 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 9/69:20 am
PHL
- SYD
3 stops43h 50m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$739
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Mon 8/3110:40 am
PHL
- SYD
3 stops42h 30m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$740
This Kiwi.com deal was found by Cheapflights users on 7/22. 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.
Wed 10/149:10 am
PHL
- SYD
3 stops58h 35m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$745
Find flight deals from Philadelphia to Sydney
Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Sydney (SYD). 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 July 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,123 (FlightHub) |
One-way from | $649 (Kiwi.com) |
Popular in | December |
Cheapest in | February |
Average price | $1,604 |
Cheapflights Fare Finder
Customize your flight search to find flights from Philadelphia to Sydney 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 July 23, 2026.
Use the filters below to find and compare flights from Philadelphia to Sydney that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
Sun 8/9
8:05 am-6:55 am
2 stops32h 50m
Sydney Kingsford Smith
Sun 8/16
10:20 am-8:55 pm
1 stop24h 35m
$1,250
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
Sun 9/6
6:16 am-6:55 am
3 stops34h 39m
Sydney Kingsford Smith
Sun 9/13
9:30 am-8:55 pm
2 stops25h 25m
$1,250
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
Thu 12/10
8:15 am-9:05 am
2 stops32h 50m
Sydney Kingsford Smith
Wed 12/23
11:20 am-11:44 pm
2 stops28h 24m
$1,572
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
Thu 12/24
6:13 pm-6:20 am
1 stop44h 07m
Sydney Kingsford Smith
Sat 1/9
11:50 am-12:25 pm
3 stops40h 35m
$1,636
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
Mon 8/24
9:30 pm-5:10 pm
1 stop29h 40m
Sydney Kingsford Smith
Mon 8/31
7:00 pm-2:30 pm
2 stops33h 30m
$1,714
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
Tue 8/25
9:27 am-10:40 am
2 stops35h 13m
Sydney Kingsford Smith
Tue 9/1
9:55 am-12:23 pm
3 stops40h 28m
$2,097
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
Fri 12/25
9:45 am-10:35 am
3 stops32h 50m
Sydney Kingsford Smith
Tue 1/5
11:50 am-10:27 am
3 stops38h 37m
$2,541
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
Mon 12/28
9:30 am-8:35 am
2 stops31h 05m
Sydney Kingsford Smith
Fri 1/8
11:50 am-11:13 pm
3 stops27h 23m
$2,641
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
Thu 12/24
9:30 am-8:35 am
2 stops31h 05m
Sydney Kingsford Smith
Sun 1/10
2:05 pm-12:25 pm
3 stops38h 20m
$2,647
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
Sat 10/24
5:33 pm-6:55 am
3 stops46h 22m
Sydney Kingsford Smith
Sat 11/7
4:20 pm-9:00 pm
3 stops44h 40m
$3,143
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Philadelphia to Sydney
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Sydney in July.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Philadelphia-Sydney flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Sydney flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-Sydney flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Philadelphia-Sydney flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Philadelphia to Sydney
Have a flexible travel schedule? Discover the best time to fly to Sydney from Philadelphia with our price prediction graph.
PHL-SYD
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 Sydney
How far ahead should I book a flight from Philadelphia to Sydney?
To ensure you get the cheapest price possible for a flight from Philadelphia to Sydney, you should look to book at least 58 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Philadelphia to Sydney?
Currently, February is the cheapest month in which you can book a flight from Philadelphia to Sydney (average of $1,049). Flying from Philadelphia to Sydney in December is currently the most expensive (average of $2,023). 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.
How much does it cost to fly round-trip from Philadelphia to Sydney?
Airfare is below average for this route at the moment.
Philadelphia to Sydney flights typically cost between $1,515 and $1,746 in November.The cheapest round-trip price found within the last 5 days was $1,123 on Qantas Airways (Nov 25-Dec 12).
Reviews of airlines servicing Sydney
Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated July 23, 2026.
Peruse reviews from past customers who have flown with Fiji Airways,Qantas Airways, andUnited Airlines from Philadelphia to Sydney to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Overall
8.0
Food
7.5
Crew
8.5
Boarding
8.1
Entertainment
7.5
Reviews
1 / 19
8.0
ExcellentPaul,Mar 2026
YVR - NAN
Comfort
8.0
Overall
8.0
Food
7.5
Crew
8.5
Boarding
8.1
Entertainment
7.5
Reviews
1 / 19
8.0
ExcellentPaul,Mar 2026
YVR - NAN
Comfort
8.0
Overall
8.0
Food
7.5
Crew
8.5
Boarding
8.1
Entertainment
7.5
Reviews
1 / 19
8.0
ExcellentPaul,Mar 2026
YVR - NAN
Comfort
8.0
Overall
8.0
Food
7.5
Crew
8.5
Boarding
8.1
Entertainment
7.5
Reviews
1 / 19
8.0
ExcellentPaul,Mar 2026
YVR - NAN
Comfort
8.0
Overall
8.0
Food
7.5
Crew
8.5
Boarding
8.1
Entertainment
7.5
Reviews
1 / 19
8.0
ExcellentPaul,Mar 2026
YVR - NAN
Comfort
8.0
Overall
8.0
Food
7.5
Crew
8.5
Boarding
8.1
Entertainment
7.5
Reviews
1 / 19
8.0
ExcellentPaul,Mar 2026
YVR - NAN
Related info for your journey
Find useful and relevant information for your journey from Philadelphia to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Sydney?
Book flights to Sydney if you plan to visit one of these locationsParramatta
Wollongong
Coogee
Manly
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Philadelphia and Sydney flights
Browse other Philadelphia and Sydney flight options. Last updated on July 23, 2026.
Other flights from Philadelphia
Browse through other flights departing from Philadelphia. Flights are based on user searches made on Cheapflights and were last updated on July 23, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Sydney
Explore flights to Sydney departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 23, 2026.
Top 6 airlines flying from Philadelphia to Sydney
Discover the top 6 airlines that operate flights from Philadelphia to Sydney. 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 July 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$843 | Average$1,457 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,045 | Average$1,447 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$1,066 | Average$1,398 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$1,159 | Average$1,563 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$1,244 | Average$1,486 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$1,418 | Average$1,548 | FlexibilityNo cancel fee | On-time78% |