HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sydney

$577+ Cheap flights from Pennsylvania to Sydney (SYD)

PHL — SYD
Oct 11 — Oct 181
Sun 10/11
Sun 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Pennsylvania 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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Pennsylvania to Sydney

Cheapest flights from Pennsylvania to Sydney

Sun 10/182:25 pm -
2 stops26h 55m
Sun 11/111:20 am -
1 stop21h 29m
Deal found 9/9$950
Wed 10/216:05 pm -
1 stop23h 15m
Fri 10/3010:20 am -
1 stop21h 29m
Deal found 9/10$986
Mon 11/166:15 pm -
1 stop23h 20m
Sun 12/611:20 am -
1 stop21h 29m
Deal found 9/10$987
Wed 10/2110:05 am -
2 stops31h 15m
Wed 10/2810:20 am -
2 stops27h 36m
Deal found 9/10$1,105
Sun 11/812:55 am -
1 stop27h 20m
Mon 11/1612:25 pm -
1 stop25h 30m
Deal found 9/6$1,166
Sun 11/11:05 pm -
1 stop39h 10m
Mon 11/1612:25 pm -
1 stop38h 05m
Deal found 9/7$1,172
Sat 10/2410:05 am -
2 stops31h 30m
Sat 10/3110:20 am -
2 stops27h 36m
Deal found 9/9$1,174
Mon 10/262:05 pm -
1 stop39h 10m
Sun 11/812:25 pm -
1 stop38h 05m
Deal found 9/6$1,176
Tue 12/112:55 am -
1 stop27h 20m
Thu 1/2812:25 pm -
1 stop25h 30m
Deal found 9/6$1,178
Sun 11/83:20 pm -
2 stops26h 15m
Wed 11/1811:20 am -
2 stops43h 24m
Deal found 9/10$1,178
Wed 10/211:30 pm -
1 stop29h 55m
Fri 10/3012:25 pm -
1 stop25h 30m
Deal found 9/10$1,182
Sun 11/19:15 am -
2 stops32h 20m
Tue 11/1011:20 am -
2 stops43h 24m
Deal found 9/7$1,182

Find flight deals from Pennsylvania to Sydney

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$950
(lol.travel)

One-way from

$577
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$1,389
Provider with most accurate pricing for Philadelphia-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Sydney Kingsford Smith flights.
Search Deals
From Pennsylvania to Sydney Kingsford Smith
Search Deals
One-way flight from Pennsylvania to Sydney Kingsford Smith
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

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

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Mon 10/26

6:00 am-6:25 am

2 stops57h 25m

Sydney Kingsford Smith

Wed 12/31

12:00 am-9:00 am

Nonstop0h 00m

$603

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Sat 10/24

5:50 am-6:25 am

2 stops57h 35m

Sydney Kingsford Smith

Wed 12/31

12:00 am-9:00 am

Nonstop0h 00m

$607

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Mon 11/23

9:41 pm-6:25 am

2 stops40h 44m

Sydney Kingsford Smith

Wed 12/31

12:00 am-9:00 am

Nonstop0h 00m

$674

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Tue 9/22

5:45 pm-7:30 am

2 stops47h 45m

Sydney Kingsford Smith

Wed 12/31

12:00 am-9:00 am

Nonstop0h 00m

$687

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Wed 9/23

1:10 pm-7:05 am

1 stop27h 55m

Sydney Kingsford Smith

Wed 12/31

12:00 am-9:00 am

Nonstop0h 00m

$694

NewarkSydney

EWR Newark - SYD Sydney Kingsford Smith

EWRSYD

Newark

Tue 12/1

12:37 pm-6:55 am

1 stop26h 18m

Sydney Kingsford Smith

Wed 12/31

12:00 am-9:00 am

Nonstop0h 00m

$694

New YorkSydney

LGA New York LaGuardia - SYD Sydney Kingsford Smith

LGASYD

New York LaGuardia

Wed 10/28

7:45 am-7:00 am

1 stop32h 15m

Sydney Kingsford Smith

Wed 12/31

12:00 am-9:00 am

Nonstop0h 00m

$697

New YorkSydney

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

JFKSYD

New York John F Kennedy Intl

Mon 11/30

4:30 pm-8:30 am

1 stop24h 00m

Sydney Kingsford Smith

Wed 12/31

12:00 am-9:00 am

Nonstop0h 00m

$698

New YorkSydney

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

JFKSYD

New York John F Kennedy Intl

Tue 11/10

11:50 am-8:30 am

2 stops28h 40m

Sydney Kingsford Smith

Wed 12/31

12:00 am-9:00 am

Nonstop0h 00m

$698

New YorkSydney

LGA New York LaGuardia - SYD Sydney Kingsford Smith

LGASYD

New York LaGuardia

Tue 11/17

6:00 am-7:00 am

1 stop33h 00m

Sydney Kingsford Smith

Wed 12/31

12:00 am-9:00 am

Nonstop0h 00m

$698

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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 April is currently the most expensive (average of $1,595). 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 $1,255 and $1,554 in October.
The cheapest round-trip price found within the last 5 days was $1,105 on Air Canada (Oct 21-Oct 28).

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 28h 48m. Delta provides one of the quickest options available for as low as $1,311. Pennsylvania and Sydney are separated by a distance of 9939 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 April is currently the most expensive (average of $1,595). 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 4 airlines flying from Pennsylvania to Sydney

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$843Average$1,510FlexibilityNo 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%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.