$527+ 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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SYD
May 26 — Jun 21
Round-trip
1 adult, Economy
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Find cheap flights from Philadelphia to Sydney 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
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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 April 26, 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 April 26, 2026.
This oojo deal was found by Cheapflights users on 4/21. 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.
Tue 5/125:37 pm
PHL
- SYD
1 stop23h 28m
Qantas Airways
Tue 5/199:10 am
SYD
- PHL
1 stop23h 44m
Qantas Airways
Deal found 4/21![Qantas Airways logo]()
$1,274
This oojo deal was found by Cheapflights users on 4/26. 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 11/87:50 pm
PHL
- SYD
1 stop31h 00m
Qatar Airways
Wed 11/189:40 pm
SYD
- PHL
1 stop51h 20m
Qatar Airways
Deal found 4/26![Qatar Airways logo]()
$1,275
This oojo deal was found by Cheapflights users on 4/22. 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.
Wed 7/15:40 pm
PHL
- SYD
1 stop23h 25m
Qantas Airways
Mon 7/139:10 am
SYD
- PHL
1 stop23h 18m
Qantas Airways
Deal found 4/22![Qantas Airways logo]()
$1,284
This Rumbo deal was found by Cheapflights users on 4/23. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/265:37 pm
PHL
- SYD
1 stop23h 28m
Qantas Airways
Sun 5/109:10 am
SYD
- PHL
1 stop21h 15m
Qantas Airways
Deal found 4/23![Qantas Airways logo]()
$1,285
This oojo deal was found by Cheapflights users on 4/23. 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 8/36:01 pm
PHL
- SYD
1 stop23h 04m
Qantas Airways
Sun 8/99:25 pm
SYD
- PHL
1 stop23h 17m
Qantas Airways
Deal found 4/23![Qantas Airways logo]()
$1,286
This oojo deal was found by Cheapflights users on 4/25. 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 11/88:45 am
PHL
- SYD
1 stop29h 25m
Qantas Airways
Wed 11/186:00 am
SYD
- PHL
2 stops24h 37m
Qantas Airways
Deal found 4/25![Qantas Airways logo]()
$1,289
This American Airlines deal was found by Cheapflights users on 4/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/145:30 pm
PHL
- SYD
2 stops23h 35m
American Airlines
Sun 9/2712:00 pm
SYD
- PHL
1 stop20h 56m
American Airlines
Deal found 4/23![American Airlines logo]()
$1,303
This United Airlines deal was found by Cheapflights users on 4/23. 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 4/261:27 pm
PHL
- SYD
2 stops27h 33m
United Airlines
Sun 5/109:30 am
SYD
- PHL
2 stops26h 14m
United Airlines
Deal found 4/23![United Airlines logo]()
$1,306
This United Airlines deal was found by Cheapflights users on 4/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1410:00 am
PHL
- SYD
2 stops31h 00m
United Airlines
Sun 9/279:30 am
SYD
- PHL
2 stops23h 55m
United Airlines
Deal found 4/22![United Airlines logo]()
$1,308
This Cheapflightsfares deal was found by Cheapflights users on 4/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/155:40 pm
PHL
- SYD
1 stop23h 25m
Qantas Airways
Tue 6/305:50 pm
SYD
- PHL
1 stop27h 15m
Qantas Airways
Deal found 4/22![Qantas Airways logo]()
$1,310
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 April 26, 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 April 26, 2026.
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Mon 9/1411:30 am
PHL
- SYD
2 stops29h 30m
United Airlines
Sun 9/279:30 am
SYD
- PHL
2 stops27h 51m
United Airlines
Deal found 4/23![United Airlines logo]()
$1,306
This Qatar Airways deal was found by Cheapflights users on 4/25. 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.
Sat 10/108:30 pm
PHL
- SYD
2 stops34h 10m
Qatar Airways
Sat 10/179:45 pm
SYD
- PHL
1 stop50h 15m
Qatar Airways
Deal found 4/25![Qatar Airways logo]()
$1,414
This Delta deal was found by Cheapflights users on 4/25. 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.
Mon 9/1412:09 pm
PHL
- SYD
2 stops28h 41m
Delta
Sun 9/279:15 am
SYD
- PHL
2 stops28h 25m
Delta
Deal found 4/25![Delta logo]()
$1,464
This Alaska Airlines deal was found by Cheapflights users on 4/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/145:46 pm
PHL
- SYD
2 stops35h 04m
Multiple Airlines
Thu 8/208:45 pm
SYD
- PHL
2 stops32h 59m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$1,726
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Wed 7/14:14 pm
PHL
- SYD
2 stops24h 46m
United Airlines
Mon 7/139:30 am
SYD
- PHL
3 stops34h 01m
United Airlines
Deal found 4/23![United Airlines logo]()
$1,322
This United Airlines deal was found by Cheapflights users on 4/21. 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.
Sun 5/109:55 am
PHL
- SYD
2 stops31h 00m
United Airlines
Sat 5/1610:20 am
SYD
- PHL
1 stop20h 39m
United Airlines
Deal found 4/21![United Airlines logo]()
$1,368
This Delta deal was found by Cheapflights users on 4/25. 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.
Tue 7/2811:36 am
PHL
- SYD
2 stops29h 14m
Delta
Fri 8/79:15 am
SYD
- PHL
2 stops27h 40m
Delta
Deal found 4/25![Delta logo]()
$1,514
This Delta deal was found by Cheapflights users on 4/24. 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 5/157:25 am
PHL
- SYD
2 stops33h 25m
Delta
Sun 5/319:15 am
SYD
- PHL
2 stops27h 57m
Delta
Deal found 4/24![Delta logo]()
$1,515
This Delta deal was found by Cheapflights users on 4/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/1512:07 pm
PHL
- SYD
2 stops28h 43m
Delta
Fri 6/269:15 am
SYD
- PHL
2 stops38h 56m
Delta
Deal found 4/21![Delta logo]()
$1,593
This United Airlines deal was found by Cheapflights users on 4/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:00 am
PHL
- SYD
1 stop34h 55m
United Airlines
Thu 10/2211:20 am
SYD
- PHL
1 stop21h 10m
United Airlines
Deal found 4/22![United Airlines logo]()
$1,671
This Delta deal was found by Cheapflights users on 4/24. 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.
Wed 6/179:46 am
PHL
- SYD
2 stops31h 04m
Delta
Tue 6/309:15 am
SYD
- PHL
2 stops37h 29m
Delta
Deal found 4/24![Delta logo]()
$1,614
Last-minute flights from Philadelphia to SydneyDiscover last-minute flight deals from Philadelphia to Sydney. Data last updated April 26, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to Sydney. Data last updated April 26, 2026 and is based on user searches.
This Rumbo deal was found by Cheapflights users on 4/23. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/265:37 pm
PHL
- SYD
1 stop23h 28m
Qantas Airways
Sun 5/109:10 am
SYD
- PHL
1 stop21h 15m
Qantas Airways
Deal found 4/23![Qantas Airways logo]()
$1,285
This American Airlines deal was found by Cheapflights users on 4/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/265:37 pm
PHL
- SYD
1 stop23h 53m
American Airlines
Sun 5/109:10 am
SYD
- PHL
2 stops23h 38m
American Airlines
Deal found 4/23![American Airlines logo]()
$1,303
This United Airlines deal was found by Cheapflights users on 4/23. 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 4/261:27 pm
PHL
- SYD
2 stops27h 33m
United Airlines
Sun 5/109:30 am
SYD
- PHL
2 stops26h 14m
United Airlines
Deal found 4/23![United Airlines logo]()
$1,306
This oojo deal was found by Cheapflights users on 4/21. 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.
Sun 5/105:37 pm
PHL
- SYD
1 stop23h 28m
Qantas Airways
Sat 5/169:10 am
SYD
- PHL
1 stop23h 44m
Qantas Airways
Deal found 4/21![Qantas Airways logo]()
$1,323
This United Airlines deal was found by Cheapflights users on 4/21. 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.
Sun 5/109:55 am
PHL
- SYD
2 stops31h 00m
United Airlines
Sat 5/1610:20 am
SYD
- PHL
1 stop20h 39m
United Airlines
Deal found 4/21![United Airlines logo]()
$1,368
This oojo deal was found by Cheapflights users on 4/21. 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.
Tue 5/125:37 pm
PHL
- SYD
1 stop23h 28m
Qantas Airways
Tue 5/199:10 am
SYD
- PHL
1 stop23h 44m
Qantas Airways
Deal found 4/21![Qantas Airways logo]()
$1,274
This American Airlines deal was found by Cheapflights users on 4/21. 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.
Tue 5/125:30 pm
PHL
- SYD
2 stops23h 35m
American Airlines
Tue 5/199:10 am
SYD
- PHL
2 stops23h 15m
American Airlines
Deal found 4/21![American Airlines logo]()
$1,319
This American Airlines deal was found by Cheapflights users on 4/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/155:37 pm
PHL
- SYD
1 stop23h 28m
American Airlines
Sun 5/3112:00 pm
SYD
- PHL
1 stop24h 53m
American Airlines
Deal found 4/22![American Airlines logo]()
$1,364
This oojo deal was found by Cheapflights users on 4/21. 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.
Tue 5/195:37 pm
PHL
- SYD
1 stop23h 53m
Qantas Airways
Tue 5/269:10 am
SYD
- PHL
1 stop23h 25m
Qantas Airways
Deal found 4/21![Qantas Airways logo]()
$1,276
This American Airlines deal was found by Cheapflights users on 4/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/243:29 pm
PHL
- SYD
1 stop25h 36m
American Airlines
Sun 5/3112:00 pm
SYD
- PHL
1 stop24h 00m
American Airlines
Deal found 4/22![American Airlines logo]()
$1,314
This United Airlines deal was found by Cheapflights users on 4/21. 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.
Sat 5/307:45 pm
PHL
- SYD
2 stops45h 10m
United Airlines
Sun 6/1410:20 am
SYD
- PHL
2 stops37h 25m
United Airlines
Deal found 4/21![United Airlines logo]()
$1,340
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 April 26, 2026.
Search for one-way flight options from Philadelphia to Sydney. Find affordable one-way fares based on user searches. Data last updated April 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 5/198:35 pm
PHL
- SYD
3 stops59h 35m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$527
This Kiwi.com deal was found by Cheapflights users on 4/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/98:37 pm
PHL
- SYD
3 stops49h 13m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$576
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 9/167:00 am
PHL
- SYD
3 stops38h 50m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$650
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 9/97:00 am
PHL
- SYD
3 stops38h 50m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$651
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Tue 9/154:44 pm
PHL
- SYD
3 stops53h 06m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$680
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 5/208:35 pm
PHL
- SYD
2 stops44h 55m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$803
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 April 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,274 (oojo) |
One-way from | $527 (Kiwi.com) |
Popular in | December |
Cheapest in | February |
Average price | $1,385 |
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 April 26, 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
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
Mon 9/14
11:30 am-7:00 am
2 stops29h 30m
Sydney Kingsford Smith
Sun 9/27
9:30 am-11:21 pm
2 stops27h 51m
$1,306
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
Wed 7/1
4:14 pm-7:00 am
2 stops24h 46m
Sydney Kingsford Smith
Mon 7/13
9:30 am-5:31 am
3 stops34h 01m
$1,322
Quickest round-trip
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
Sun 5/10
9:55 am-6:55 am
2 stops31h 00m
Sydney Kingsford Smith
Sat 5/16
10:20 am-4:59 pm
1 stop20h 39m
$1,368
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
Sat 10/10
8:30 pm-9:40 pm
2 stops34h 10m
Sydney Kingsford Smith
Sat 10/17
9:45 pm-9:00 am
1 stop50h 15m
$1,414
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
Mon 9/14
12:09 pm-6:50 am
2 stops28h 41m
Sydney Kingsford Smith
Sun 9/27
9:15 am-11:40 pm
2 stops28h 25m
$1,464
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
Tue 7/28
11:36 am-6:50 am
2 stops29h 14m
Sydney Kingsford Smith
Fri 8/7
9:15 am-10:55 pm
2 stops27h 40m
$1,514
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
Fri 5/15
7:25 am-6:50 am
2 stops33h 25m
Sydney Kingsford Smith
Sun 5/31
9:15 am-11:12 pm
2 stops27h 57m
$1,515
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
Mon 6/15
12:07 pm-6:50 am
2 stops28h 43m
Sydney Kingsford Smith
Fri 6/26
9:15 am-10:11 am
2 stops38h 56m
$1,593
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
Wed 6/17
9:46 am-6:50 am
2 stops31h 04m
Sydney Kingsford Smith
Tue 6/30
9:15 am-8:44 am
2 stops37h 29m
$1,614
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
Thu 10/8
6:00 am-7:55 am
1 stop34h 55m
Sydney Kingsford Smith
Thu 10/22
11:20 am-5:30 pm
1 stop21h 10m
$1,671
Showing 1-10 of 17 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 April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- 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 12 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 $1,059). Flying from Philadelphia to Sydney in December is currently the most expensive (average of $2,004). 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?
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 April 26, 2026.
Peruse reviews from past customers who have flown with Fiji Airways,Air New Zealand, andQantas Airways 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.
Crew
8.6
Boarding
8.2
Overall
8.1
Comfort
8.1
Food
7.5
Entertainment
7.5
Reviews
1 / 19
8.0
ExcellentPaul,Mar 2026
YVR - NAN
Crew
8.6
Boarding
8.2
Overall
8.1
Comfort
8.1
Food
7.5
Entertainment
7.5
Reviews
1 / 19
8.0
ExcellentPaul,Mar 2026
YVR - NAN
Crew
8.6
Boarding
8.2
Overall
8.1
Comfort
8.1
Food
7.5
Entertainment
7.5
Reviews
1 / 19
8.0
ExcellentPaul,Mar 2026
YVR - NAN
Crew
8.6
Boarding
8.2
Overall
8.1
Comfort
8.1
Food
7.5
Entertainment
7.5
Reviews
1 / 19
8.0
ExcellentPaul,Mar 2026
YVR - NAN
Crew
8.6
Boarding
8.2
Overall
8.1
Comfort
8.1
Food
7.5
Entertainment
7.5
Reviews
1 / 19
8.0
ExcellentPaul,Mar 2026
YVR - NAN
Crew
8.6
Boarding
8.2
Overall
8.1
Comfort
8.1
Food
7.5
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 April 26, 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 April 26, 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 April 26, 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 April 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$843 | Average$1,533 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,044 | Average$1,511 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$1,066 | Average$1,439 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$1,198 | Average$1,562 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$1,256 | Average$1,486 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$1,418 | Average$1,548 | FlexibilityNo cancel fee | On-time78% |