$502+ 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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SYD
Touko 4 — Touko 111
Round-trip
1 adult, Economy
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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 huhtikuu 4, 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 huhtikuu 4, 2026.
This Trip.com deal was found by Cheapflights users on 4/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ke 4/228:00 am
PHL
- SYD
3 stops37h 50m
Multiple Airlines
ke 4/296:00 am
SYD
- PHL
3 stops37h 13m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$1,017
This Trip.com deal was found by Cheapflights users on 3/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
to 5/147:55 am
PHL
- SYD
3 stops37h 55m
Multiple Airlines
to 5/216:00 am
SYD
- PHL
3 stops61h 37m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$1,023
This Trip.com deal was found by Cheapflights users on 4/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
su 5/312:47 pm
PHL
- SYD
3 stops33h 03m
Multiple Airlines
su 5/101:15 pm
SYD
- PHL
3 stops54h 22m
Multiple Airlines
Deal found 4/3![Multiple Airlines logo]()
$1,143
This Trip.com deal was found by Cheapflights users on 4/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ke 4/228:00 am
PHL
- SYD
3 stops37h 50m
Multiple Airlines
su 4/261:15 pm
SYD
- PHL
3 stops36h 25m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$1,194
This Trip.com deal was found by Cheapflights users on 4/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ke 4/158:00 am
PHL
- SYD
3 stops48h 10m
Multiple Airlines
ma 4/271:15 pm
SYD
- PHL
3 stops31h 35m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$1,240
This oojo deal was found by Cheapflights users on 4/1. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
su 11/11:00 pm
PHL
- SYD
1 stop25h 55m
Qantas Airways
su 11/81:00 pm
SYD
- PHL
2 stops47h 03m
Qantas Airways
Deal found 4/1![Qantas Airways logo]()
$1,303
This oojo deal was found by Cheapflights users on 3/31. 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.
su 11/18:45 am
PHL
- SYD
1 stop29h 25m
Qantas Airways
su 11/156:00 am
SYD
- PHL
2 stops24h 37m
Qantas Airways
Deal found 3/31![Qantas Airways logo]()
$1,308
This Vliegwinkel deal was found by Cheapflights users on 4/2. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
su 4/195:05 am
PHL
- SYD
2 stops36h 25m
Multiple Airlines
su 5/35:50 pm
SYD
- PHL
2 stops37h 44m
Multiple Airlines
Deal found 4/2![Multiple Airlines logo]()
$1,318
This Trip.com deal was found by Cheapflights users on 4/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ke 4/2911:48 am
PHL
- SYD
2 stops29h 42m
Multiple Airlines
ke 5/139:10 am
SYD
- PHL
2 stops36h 02m
Multiple Airlines
Deal found 4/3![Multiple Airlines logo]()
$1,333
This oojo deal was found by Cheapflights users on 3/31. 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.
to 12/35:00 pm
PHL
- SYD
2 stops26h 55m
Qantas Airways
su 12/139:25 pm
SYD
- PHL
1 stop26h 15m
Qantas Airways
Deal found 3/31![Qantas Airways logo]()
$1,344
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 huhtikuu 4, 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 huhtikuu 4, 2026.
This Qantas Airways deal was found by Cheapflights users on 3/30. 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.
ti 4/283:51 pm
PHL
- SYD
1 stop24h 34m
Multiple Airlines
ti 5/59:10 am
SYD
- PHL
1 stop23h 44m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$1,451
This Qantas Airways deal was found by Cheapflights users on 4/1. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
su 6/145:35 pm
PHL
- SYD
1 stop22h 50m
Qantas Airways
ma 6/293:45 pm
SYD
- PHL
2 stops29h 15m
Qantas Airways
Deal found 4/1![Qantas Airways logo]()
$1,547
This Delta deal was found by Cheapflights users on 4/1. 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.
ma 6/1510:40 am
PHL
- SYD
2 stops30h 10m
Delta
pe 6/269:15 am
SYD
- PHL
2 stops34h 53m
Delta
Deal found 4/1![Delta logo]()
$1,781
This Air Canada deal was found by Cheapflights users on 4/3. 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.
ma 6/110:05 am
PHL
- SYD
3 stops31h 15m
Air Canada
ke 6/109:20 am
SYD
- PHL
3 stops43h 28m
Air Canada
Deal found 4/3![Air Canada logo]()
$1,798
This Air New Zealand deal was found by Cheapflights users on 4/3. 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 New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
pe 5/112:50 pm
PHL
- SYD
2 stops31h 50m
Air New Zealand
pe 5/811:55 am
SYD
- PHL
2 stops24h 45m
Air New Zealand
Deal found 4/3![Air New Zealand logo]()
$2,386
This Qantas Airways deal was found by Cheapflights users on 4/3. 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.
to 4/303:43 pm
PHL
- SYD
1 stop25h 22m
Qantas Airways
su 5/105:50 pm
SYD
- PHL
1 stop26h 02m
Qantas Airways
Deal found 4/3![Qantas Airways logo]()
$1,553
This Etihad Airways deal was found by Cheapflights users on 4/1. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ke 4/228:20 am
PHL
- SYD
2 stops42h 30m
Multiple Airlines
su 4/263:40 pm
SYD
- PHL
2 stops43h 07m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$1,599
This Etihad Airways deal was found by Cheapflights users on 3/31. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma 4/2010:05 pm
PHL
- SYD
2 stops52h 45m
Multiple Airlines
su 4/263:40 pm
SYD
- PHL
2 stops40h 58m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$1,659
This Qantas Airways deal was found by Cheapflights users on 4/1. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
pe 6/125:35 pm
PHL
- SYD
1 stop22h 50m
Qantas Airways
la 6/273:15 pm
SYD
- PHL
2 stops29h 45m
Qantas Airways
Deal found 4/1![Qantas Airways logo]()
$1,707
This Qantas Airways deal was found by Cheapflights users on 4/1. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma 6/153:29 pm
PHL
- SYD
1 stop25h 36m
Qantas Airways
la 6/273:45 pm
SYD
- PHL
2 stops29h 15m
Qantas Airways
Deal found 4/1![Qantas Airways logo]()
$1,709
This Etihad Airways deal was found by Cheapflights users on 3/30. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
su 5/104:02 pm
PHL
- SYD
2 stops34h 48m
Multiple Airlines
la 5/168:50 pm
SYD
- PHL
2 stops49h 29m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$1,712
This Air New Zealand deal was found by Cheapflights users on 4/3. 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 New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
pe 5/19:55 am
PHL
- SYD
3 stops34h 45m
Multiple Airlines
pe 5/811:55 am
SYD
- PHL
3 stops36h 04m
Multiple Airlines
Deal found 4/3![Multiple Airlines logo]()
$2,771
Last-minute flights from Philadelphia to SydneyDiscover last-minute flight deals from Philadelphia to Sydney. Data last updated huhtikuu 4, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to Sydney. Data last updated huhtikuu 4, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 4/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ke 4/158:00 am
PHL
- SYD
3 stops48h 10m
Multiple Airlines
ma 4/271:15 pm
SYD
- PHL
3 stops31h 35m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$1,240
This Vliegwinkel deal was found by Cheapflights users on 4/2. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
su 4/195:05 am
PHL
- SYD
2 stops36h 25m
Multiple Airlines
su 5/35:50 pm
SYD
- PHL
2 stops37h 44m
Multiple Airlines
Deal found 4/2![Multiple Airlines logo]()
$1,318
This oojo deal was found by Cheapflights users on 4/1. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
su 4/195:37 pm
PHL
- SYD
1 stop23h 28m
Qantas Airways
ma 5/119:10 am
SYD
- PHL
1 stop23h 44m
Qantas Airways
Deal found 4/1![Qantas Airways logo]()
$1,409
This Trip.com deal was found by Cheapflights users on 4/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ke 4/228:00 am
PHL
- SYD
3 stops37h 50m
Multiple Airlines
ke 4/296:00 am
SYD
- PHL
3 stops37h 13m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$1,017
This Trip.com deal was found by Cheapflights users on 4/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ke 4/228:00 am
PHL
- SYD
3 stops37h 50m
Multiple Airlines
su 4/261:15 pm
SYD
- PHL
3 stops36h 25m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$1,194
This oojo deal was found by Cheapflights users on 3/30. 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.
ti 4/285:37 pm
PHL
- SYD
1 stop23h 28m
Qantas Airways
ti 5/59:10 am
SYD
- PHL
1 stop23h 44m
Qantas Airways
Deal found 3/30![Qantas Airways logo]()
$1,410
This Trip.com deal was found by Cheapflights users on 4/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ke 4/2911:48 am
PHL
- SYD
2 stops29h 42m
Multiple Airlines
ke 5/139:10 am
SYD
- PHL
2 stops36h 02m
Multiple Airlines
Deal found 4/3![Multiple Airlines logo]()
$1,333
This Trip.com deal was found by Cheapflights users on 4/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
su 5/312:47 pm
PHL
- SYD
3 stops33h 03m
Multiple Airlines
su 5/101:15 pm
SYD
- PHL
3 stops54h 22m
Multiple Airlines
Deal found 4/3![Multiple Airlines logo]()
$1,143
This Trip.com deal was found by Cheapflights users on 3/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
to 5/147:55 am
PHL
- SYD
3 stops37h 55m
Multiple Airlines
to 5/216:00 am
SYD
- PHL
3 stops61h 37m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$1,023
This Bravofly deal was found by Cheapflights users on 4/1. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
su 5/175:37 pm
PHL
- SYD
1 stop23h 28m
Qantas Airways
su 5/2412:00 pm
SYD
- PHL
1 stop23h 02m
Qantas Airways
Deal found 4/1![Qantas Airways logo]()
$1,416
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 huhtikuu 4, 2026.
Search for one-way flight options from Philadelphia to Sydney. Find affordable one-way fares based on user searches. Data last updated huhtikuu 4, 2026.
This Trip.com deal was found by Cheapflights users on 3/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma 5/1810:11 am
PHL
- SYD
3 stops35h 54m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$502
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
ti 5/126:10 am
PHL
- SYD
2 stops50h 00m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$506
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
ti 5/196:10 am
PHL
- SYD
2 stops39h 40m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$515
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
la 5/161:11 pm
PHL
- SYD
2 stops32h 39m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$532
This Kiwi.com deal was found by Cheapflights users on 3/31. 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.
ma 4/203:41 pm
PHL
- SYD
3 stops54h 09m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$541
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
pe 5/158:35 pm
PHL
- SYD
3 stops49h 15m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$545
This Kiwi.com deal was found by Cheapflights users on 3/31. 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.
su 4/198:36 pm
PHL
- SYD
3 stops49h 29m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$547
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
pe 7/2412:42 pm
PHL
- SYD
3 stops57h 08m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$575
This Kiwi.com deal was found by Cheapflights users on 4/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
su 8/95:06 pm
PHL
- SYD
3 stops52h 44m
Multiple Airlines
Deal found 4/3![Multiple Airlines logo]()
$591
This Kiwi.com deal was found by Cheapflights users on 3/31. 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.
ti 9/227:00 am
PHL
- SYD
3 stops38h 50m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$620
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 huhtikuu 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $960 (Trip.com) |
One-way from | $502 (Trip.com) |
Popular in | December |
Cheapest in | April |
Average price | $959 |
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 huhtikuu 4, 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
ti 4/28
3:51 pm-6:25 am
1 stop24h 34m
Sydney Kingsford Smith
ti 5/5
9:10 am-6:54 pm
1 stop23h 44m
$1,451
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
su 6/14
5:35 pm-6:25 am
1 stop22h 50m
Sydney Kingsford Smith
ma 6/29
3:45 pm-7:00 am
2 stops29h 15m
$1,547
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
to 4/30
3:43 pm-7:05 am
1 stop25h 22m
Sydney Kingsford Smith
su 5/10
5:50 pm-5:52 am
1 stop26h 02m
$1,553
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
ke 4/22
8:20 am-4:50 pm
2 stops42h 30m
Sydney Kingsford Smith
su 4/26
3:40 pm-8:47 pm
2 stops43h 07m
$1,599
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
ma 4/20
10:05 pm-4:50 pm
2 stops52h 45m
Sydney Kingsford Smith
su 4/26
3:40 pm-6:38 pm
2 stops40h 58m
$1,659
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
pe 6/12
5:35 pm-6:25 am
1 stop22h 50m
Sydney Kingsford Smith
la 6/27
3:15 pm-7:00 am
2 stops29h 45m
$1,707
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
ma 6/15
3:29 pm-7:05 am
1 stop25h 36m
Sydney Kingsford Smith
la 6/27
3:45 pm-7:00 am
2 stops29h 15m
$1,709
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
su 5/10
4:02 pm-4:50 pm
2 stops34h 48m
Sydney Kingsford Smith
la 5/16
8:50 pm-8:19 am
2 stops49h 29m
$1,712
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
ma 6/15
10:40 am-6:50 am
2 stops30h 10m
Sydney Kingsford Smith
pe 6/26
9:15 am-6:08 am
2 stops34h 53m
$1,781
PhiladelphiaSydney
PHL - SYD
PHLSYD
Philadelphia
ma 6/1
10:05 am-7:20 am
3 stops31h 15m
Sydney Kingsford Smith
ke 6/10
9:20 am-2:48 pm
3 stops43h 28m
$1,798
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 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?
Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to Sydney. Price data was last updated on April 2, 2026.
To ensure you get the cheapest price possible for a flight from Philadelphia to Sydney, you should look to book at least 64 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, August is the cheapest month in which you can book a flight from Philadelphia to Sydney (average of $372). Flying from Philadelphia to Sydney in January is currently the most expensive (average of $974). 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 huhtikuu 4, 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.
Comfort
8.1
Overall
8.1
Boarding
8.2
Crew
8.5
Food
7.5
Entertainment
7.5
Reviews
1 / 19
8.0
ExcellentPaul,Mar 2026
YVR - NAN
Comfort
8.1
Overall
8.1
Boarding
8.2
Crew
8.5
Food
7.5
Entertainment
7.5
Reviews
1 / 19
8.0
ExcellentPaul,Mar 2026
YVR - NAN
Comfort
8.1
Overall
8.1
Boarding
8.2
Crew
8.5
Food
7.5
Entertainment
7.5
Reviews
1 / 19
8.0
ExcellentPaul,Mar 2026
YVR - NAN
Comfort
8.1
Overall
8.1
Boarding
8.2
Crew
8.5
Food
7.5
Entertainment
7.5
Reviews
1 / 19
8.0
ExcellentPaul,Mar 2026
YVR - NAN
Comfort
8.1
Overall
8.1
Boarding
8.2
Crew
8.5
Food
7.5
Entertainment
7.5
Reviews
1 / 19
8.0
ExcellentPaul,Mar 2026
YVR - NAN
Comfort
8.1
Overall
8.1
Boarding
8.2
Crew
8.5
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 huhtikuu 4, 2026.
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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 huhtikuu 4, 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 huhtikuu 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$843 | Average$1,468 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,044 | Average$1,602 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$1,052 | Average$1,398 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$1,198 | Average$1,575 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$1,272 | Average$1,517 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$1,418 | Average$1,548 | FlexibilityNo cancel fee | On-time78% |