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Cheap flights from Pennsylvania to Sydney from $751

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pennsylvania to Sydney departing on 31/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Cheap return flights

Enter your travel dates to find the best prices.
Qantas Airways Logo
14:30 - 17:40
PHL
-
SYD
35h 10m2 stops
Qantas Airways Logo
11:20 - 19:54
SYD
-
PHL
24h 34m1 stop
$1,412Qantas Airways
Thu, 5 Feb - Sat, 21 Feb
Air Canada Logo
18:25 - 09:35
EWR
-
SYD
23h 10m1 stop
Air Canada Logo
11:20 - 16:53
SYD
-
EWR
21h 33m1 stop
$1,423Air Canada
Mon, 2 Feb - Sun, 15 Feb
Multiple Airlines Logo
18:25 - 14:25
EWR
-
SYD
28h 00m2 stops
Multiple Airlines Logo
11:20 - 16:53
SYD
-
EWR
21h 33m1 stop
$1,436Multiple Airlines
Wed, 4 Feb - Wed, 11 Feb
Multiple Airlines Logo
18:25 - 13:00
EWR
-
SYD
26h 35m2 stops
Multiple Airlines Logo
11:20 - 16:53
SYD
-
EWR
21h 33m1 stop
$1,438Multiple Airlines
Mon, 2 Feb - Sun, 15 Feb
American Airlines Logo
16:59 - 07:30
DCA
-
SYD
23h 31m1 stop
American Airlines Logo
09:10 - 20:53
SYD
-
DCA
25h 43m1 stop
$1,442American Airlines
Wed, 1 Apr - Tue, 28 Apr
American Airlines Logo
11:22 - 09:00
IAD
-
SYD
29h 38m2 stops
American Airlines Logo
09:10 - 23:59
SYD
-
IAD
28h 49m2 stops
$1,448American Airlines
Tue, 17 Feb - Tue, 26 May
United Airlines Logo
15:36 - 07:00
LGA
-
SYD
23h 24m1 stop
United Airlines Logo
11:50 - 19:51
SYD
-
LGA
24h 01m1 stop
$1,498United Airlines
Tue, 17 Feb - Sun, 8 Mar
United Airlines Logo
08:00 - 07:00
PHL
-
SYD
31h 00m1 stop
United Airlines Logo
11:50 - 22:57
SYD
-
PHL
27h 07m1 stop
$1,498United Airlines
Mon, 16 Feb - Tue, 24 Feb
Delta Logo
06:28 - 06:50
ABE
-
SYD
32h 22m2 stops
Delta Logo
10:40 - 22:49
SYD
-
ABE
28h 09m2 stops
$2,013Delta
Thu, 5 Feb - Thu, 12 Feb
Delta Logo
06:00 - 06:35
MDT
-
SYD
34h 35m2 stops
Delta Logo
09:15 - 11:51
SYD
-
MDT
40h 36m2 stops
$2,111Delta
Sun, 7 Jun - Mon, 15 Jun

American Airlines flights from Pennsylvania to Sydney

Our best American Airlines deals on Pennsylvania to Sydney flight tickets
American Airlines
1 Apr
DCA16:59Washington, D.C. Reagan-National
23h 31m
1 stop
SYD07:30Sydney Kingsford Smith
28 Apr
SYD09:10Sydney Kingsford Smith
20h 39m
1 stop
DCA15:49Washington, D.C. Reagan-National
$1,442
Find similar
American Airlines
17 Feb
IAD11:22Washington, D.C. Dulles Intl
29h 38m
2 stops
SYD09:00Sydney Kingsford Smith
26 May
SYD09:10Sydney Kingsford Smith
28h 49m
2 stops
IAD23:59Washington, D.C. Dulles Intl
$1,448
Find similar
American Airlines
24 Feb
IAD11:22Washington, D.C. Dulles Intl
29h 38m
2 stops
SYD09:00Sydney Kingsford Smith
24 Mar
SYD17:45Sydney Kingsford Smith
30h 03m
2 stops
IAD08:48Washington, D.C. Dulles Intl
$1,450
Find similar

United Airlines flights from Pennsylvania to Sydney

Our best United Airlines deals on Pennsylvania to Sydney flight tickets
United Airlines
17 Feb
LGA15:36New York LaGuardia
23h 24m
1 stop
SYD07:00Sydney Kingsford Smith
9 Mar
SYD11:50Sydney Kingsford Smith
24h 01m
1 stop
LGA20:51New York LaGuardia
$1,498
Find similar
United Airlines
1 June
LGA16:15New York LaGuardia
24h 40m
2 stops
SYD06:55Sydney Kingsford Smith
17 June
SYD09:30Sydney Kingsford Smith
22h 57m
2 stops
LGA18:27New York LaGuardia
$1,504
Find similar
United Airlines
2 Mar
PHL17:55Philadelphia
45h 05m
1 stop
SYD07:00Sydney Kingsford Smith
16 Mar
SYD11:50Sydney Kingsford Smith
21h 03m
1 stop
PHL17:53Philadelphia
$1,509
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Pennsylvania 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, momondo users made 78,305 searches. Data last updated 23 December 2025.
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

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Thu 5/2

14:30-17:40

2 stops35h 10m

Sydney Kingsford Smith

Sat 21/2

11:20-19:54

1 stop24h 34m

$1,412

NewarkSydney

EWR - SYD

EWRSYD

Newark

Mon 2/2

18:25-09:35

1 stop23h 10m

Sydney Kingsford Smith

Sun 15/2

11:20-16:53

1 stop21h 33m

$1,423

NewarkSydney

EWR - SYD

EWRSYD

Newark

Wed 4/2

18:25-14:25

2 stops28h 00m

Sydney Kingsford Smith

Wed 11/2

11:20-16:53

1 stop21h 33m

$1,436

NewarkSydney

EWR - SYD

EWRSYD

Newark

Mon 2/2

18:25-13:00

2 stops26h 35m

Sydney Kingsford Smith

Sun 15/2

11:20-16:53

1 stop21h 33m

$1,438

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Wed 1/4

16:59-07:30

1 stop23h 31m

Sydney Kingsford Smith

Tue 28/4

09:10-20:53

1 stop25h 43m

$1,442

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Tue 17/2

11:22-09:00

2 stops29h 38m

Sydney Kingsford Smith

Tue 26/5

09:10-23:59

2 stops28h 49m

$1,448

New YorkSydney

LGA - SYD

LGASYD

New York LaGuardia

Tue 17/2

15:36-07:00

1 stop23h 24m

Sydney Kingsford Smith

Sun 8/3

11:50-19:51

1 stop24h 01m

$1,498

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 16/2

08:00-07:00

1 stop31h 00m

Sydney Kingsford Smith

Tue 24/2

11:50-22:57

1 stop27h 07m

$1,498

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Thu 5/2

06:28-06:50

2 stops32h 22m

Sydney Kingsford Smith

Thu 12/2

10:40-22:49

2 stops28h 09m

$2,013

HarrisburgSydney

MDT - SYD

MDTSYD

Harrisburg

Sun 7/6

06:00-06:35

2 stops34h 35m

Sydney Kingsford Smith

Mon 15/6

09:15-11:51

2 stops40h 36m

$2,111

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Sydney from

How to get the cheapest flight ticket from Pennsylvania to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Sydney?

The month of February is, on average, the cheapest month to fly to Sydney from Pennsylvania, with most prices found around $1,594. If you aren’t able to travel to Sydney during the month of February, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $1,652.

What is the cheapest day to depart on your flight to Sydney?

Our data shows that Tuesday is the least expensive day to fly to Sydney. Tickets to fly out on this day can be as low as $2,036. The most expensive day to fly to Sydney is Wednesday, with ticket prices averaging around $3,765.

How far in advance should I book a flight to Sydney?

You are more likely to see cheaper flights to Sydney from Pennsylvania when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $2,145 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Pennsylvania for as low as $1,581 on momondo.

Can stopping save me money on Pennsylvania to Sydney flights?

You could potentially save up to 36% on your flight if you consider stops on a Pennsylvania to Sydney flight.

Cheap Pennsylvania to Sydney flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Pennsylvania to Sydney

Fastest flight time

22h 30m

Direct flights

Mon, Tue, Thu, Sat and Sun

Airports in Sydney

1 airport
The fastest flight from Pennsylvania to Sydney takes 22h 30m
Direct flights go from Pennsylvania to Sydney on Monday, Tuesday, Thursday, Saturday and Sunday. There are no airlines offering direct flights..
There is 1 airport in Sydney. From Pennsylvania there are direct flights to Sydney Kingsford Smith (SYD).
Search flight deals

  • When did momondo last update prices for flights from Pennsylvania to Sydney Kingsford Smith Airport?

    Prices for flights from Pennsylvania to Sydney Kingsford Smith Airport were last updated today.

  • How many operators does momondo search for flights from Pennsylvania to Sydney Kingsford Smith Airport?

  • How old do you have to be to fly from Pennsylvania to Sydney Kingsford Smith Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Pennsylvania to Sydney Kingsford Smith Airport.

  • What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

    The necessary travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Terrigal
Penrith
Katoomba
Lithgow
Leura
Manly
Bondi Beach
Coogee
Cronulla
Randwick
Charlestown
Newport
Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Pennsylvania to Sydney?

Finding the right flight to Sydney from Pennsylvania is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Sydney quick and easy, saving you time and money.

Can I find flights from Pennsylvania to Sydney with flexible booking policies on momondo?

Flights from Pennsylvania to Sydney with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Pennsylvania to Sydney?

momondo helps you find the best flight between Pennsylvania and Sydney by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Pennsylvania to Sydney right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Pennsylvania to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.

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