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$549+ Cheap flights from Pennsylvania to Sydney (SYD)

PHL — SYD
Sep 25 — Oct 21
Fri 9/25
Fri 10/2
1 adult, Economy
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1. Tell us where you want to go

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Cheap flight deals from Pennsylvania to Sydney

Cheapest flights from Pennsylvania to Sydney

Sun 8/305:12 pm -
1 stop24h 08m
Tue 9/159:20 am -
1 stop21h 13m
Deal found 8/25$958
Mon 8/3110:54 am -
1 stop30h 26m
Tue 9/159:20 am -
1 stop21h 13m
Deal found 8/23$1,005
Wed 10/142:25 pm -
2 stops26h 55m
Mon 10/2610:20 am -
2 stops25h 14m
Deal found 8/25$1,017
Tue 9/2211:12 am -
3 stops34h 38m
Sun 9/272:25 pm -
3 stops33h 52m
Deal found 8/23$1,089
Wed 9/2311:12 am -
3 stops34h 38m
Wed 9/301:15 pm -
3 stops31h 05m
Deal found 8/24$1,093
Tue 10/207:50 am -
3 stops38h 00m
Mon 10/262:00 pm -
3 stops35h 21m
Deal found 8/24$1,132
Mon 10/196:00 am -
3 stops39h 50m
Thu 10/222:15 pm -
3 stops36h 19m
Deal found 8/25$1,137
Tue 9/228:41 am -
3 stops47h 44m
Tue 9/296:15 am -
3 stops41h 15m
Deal found 8/23$1,158
Tue 10/201:25 pm -
2 stops39h 45m
Mon 10/269:45 pm -
2 stops30h 38m
Deal found 8/24$1,172
Tue 10/201:30 pm -
1 stop39h 40m
Wed 11/49:45 pm -
1 stop40h 05m
Deal found 8/24$1,174
Thu 10/222:30 pm -
1 stop26h 50m
Sun 11/1511:20 am -
1 stop27h 23m
Deal found 8/22$1,174
Wed 11/412:50 am -
1 stop41h 40m
Thu 11/2612:25 pm -
1 stop25h 25m
Deal found 8/23$1,175

Find flight deals from Pennsylvania to Sydney

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,016
(Booking.com)

One-way from

$549
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$1,493
Provider with most accurate pricing for Philadelphia-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Philadelphia-Sydney Kingsford Smith flights.
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From Pennsylvania to Sydney Kingsford Smith
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One-way flight from Pennsylvania to Sydney Kingsford Smith
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in August 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Pennsylvania to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Sun 11/8

3:20 pm-9:35 am

2 stops26h 15m

Sydney Kingsford Smith

Wed 11/18

11:20 am-2:44 pm

3 stops43h 24m

$1,224

NewarkSydney

EWR Newark - SYD Sydney Kingsford Smith

EWRSYD

Newark

Mon 8/31

12:10 pm-7:00 am

1 stop28h 50m

Sydney Kingsford Smith

Tue 9/15

9:30 am-7:32 pm

1 stop24h 02m

$1,232

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Sun 11/8

4:21 pm-6:55 am

1 stop22h 34m

Sydney Kingsford Smith

Wed 11/18

11:05 am-8:32 pm

2 stops25h 27m

$1,277

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Sun 11/8

3:14 pm-6:55 am

1 stop23h 41m

Sydney Kingsford Smith

Wed 11/18

11:05 am-8:14 pm

2 stops25h 09m

$1,278

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Sun 11/8

8:45 pm-10:20 pm

2 stops33h 35m

Sydney Kingsford Smith

Wed 11/18

3:50 pm-2:50 pm

1 stop39h 00m

$1,302

New YorkSydney

LGA New York LaGuardia - SYD Sydney Kingsford Smith

LGASYD

New York LaGuardia

Sun 11/1

2:30 pm-9:05 am

2 stops26h 35m

Sydney Kingsford Smith

Sun 11/8

9:15 am-8:57 pm

1 stop27h 42m

$1,309

New YorkSydney

LGA New York LaGuardia - SYD Sydney Kingsford Smith

LGASYD

New York LaGuardia

Tue 11/24

3:39 pm-7:00 am

1 stop23h 21m

Sydney Kingsford Smith

Mon 12/7

9:20 am-2:41 pm

1 stop21h 21m

$1,310
Quickest round-trip

NewarkSydney

EWR Newark - SYD Sydney Kingsford Smith

EWRSYD

Newark

Tue 11/24

6:15 pm-9:05 am

1 stop22h 50m

Sydney Kingsford Smith

Wed 12/2

11:50 am-4:35 pm

1 stop20h 45m

$1,310

New YorkSydney

LGA New York LaGuardia - SYD Sydney Kingsford Smith

LGASYD

New York LaGuardia

Wed 9/23

3:29 pm-7:00 am

2 stops25h 31m

Sydney Kingsford Smith

Wed 9/30

9:30 am-6:41 pm

2 stops23h 11m

$1,314

New YorkSydney

JFK New York John F Kennedy Intl - SYD Sydney Kingsford Smith

JFKSYD

New York John F Kennedy Intl

Wed 10/14

5:45 pm-7:50 am

1 stop23h 05m

Sydney Kingsford Smith

Mon 10/26

9:40 am-5:59 am

2 stops35h 19m

$1,315

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/26

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Pennsylvania to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Pennsylvania with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Pennsylvania to Sydney

What is the cheapest month to book a flight from Pennsylvania to Sydney?

Currently, February is the cheapest month in which you can book a flight from Pennsylvania to Sydney (average of $1,115). Flying from Pennsylvania to Sydney in December is currently the most expensive (average of $1,607). 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 Pennsylvania to Sydney?

Airfare is below average for this route at the moment.
Pennsylvania to Sydney flights typically cost between $1,335 and $1,868 in September.
The cheapest round-trip price found within the last 5 days was $1,158 on Multiple Airlines (Sep 22-Sep 29).

How far ahead should I book a flight from Pennsylvania to Sydney?

The price you pay for your flight from Pennsylvania to Sydney may vary depending on when you book. For the best chance of a lower fare, look to book 34 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Related info for your journey

  • What airport do you fly into for flights to Sydney from Pennsylvania?

    Sydney Kingsford Smith (SYD) is the airport you will fly into if you book a flight from Pennsylvania to Sydney. It is only a 4.6 mi journey from Kingsford Smith (SYD) to Sydney’s city center.

  • How long is the flight from Pennsylvania to Sydney?

    A quick flight from Pennsylvania to Sydney can take about 23h 41m. Air Canada provides one of the quickest options available for as low as $1,278. Pennsylvania and Sydney are separated by a distance of 9862 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Pennsylvania to Sydney?

    When deciding which route to take from Pennsylvania to Sydney consider New York John F Kennedy Intl - Sydney Kingsford Smith, Newark - Sydney Kingsford Smith or New York LaGuardia - Sydney Kingsford Smith as they are the most popular.

  • Can I find deals for flights from Pennsylvania to Sydney that include hotel bookings?

    Yes. In addition to deals on Pennsylvania to Sydney flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pennsylvania to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pennsylvania to Sydney.

  • Can I find deals for business class flights from Pennsylvania to Sydney?

    Yes. Cheapflights offers flight deals from Pennsylvania to Sydney 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 Pennsylvania to Sydney?

    Currently, February is the cheapest month in which you can book a flight from Pennsylvania to Sydney (average of $1,115). Flying from Pennsylvania to Sydney in December is currently the most expensive (average of $1,607). 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

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Coogee
Manly

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from Pennsylvania to Sydney

AirlineCheapestAverageFlexibilityOn-time
Fiji AirwaysCheapest$729Average$1,381FlexibilityNo cancel feeOn-time74%
United AirlinesCheapest$843Average$1,497FlexibilityNo cancel feeOn-time69%
Qantas AirwaysCheapest$1,046Average$1,405FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$1,159Average$1,499FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$1,210Average$1,398FlexibilityNo cancel feeOn-time67%

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