Cheap flights from Philadelphia to Australia from $522

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Australia departing on 9/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Air Canada Logo
3:30 pm - 9:35 amPHL-SYD
26h 05m2 stops
Air Canada Logo
11:20 am - 2:47 pmSYD-PHL
43h 27m2 stops
$835Air Canada
Find Deal
Tue, Nov 11 - Tue, Nov 18
Air Canada Logo
3:30 pm - 9:35 amPHL-SYD
51h 05m3 stops
Air Canada Logo
11:20 am - 2:47 pmSYD-PHL
43h 27m2 stops
$842Air Canada
Find Deal
Sat, Nov 1 - Sun, Nov 16
Fiji Airways Logo
6:43 pm - 12:45 pmPHL-SYD
27h 02m2 stops
Fiji Airways Logo
2:30 pm - 9:40 pmSYD-PHL
23h 10m2 stops
$1,177Fiji Airways
Find Deal
Sat, Oct 25 - Sat, Nov 15
Qantas Airways Logo
12:35 pm - 5:15 pmPHL-MEL
36h 40m2 stops
Qantas Airways Logo
11:55 pm - 9:09 pmMEL-PHL
37h 14m2 stops
$1,200Qantas Airways
Find Deal
Tue, Feb 3 - Tue, Feb 24
Fiji Airways Logo
5:17 pm - 12:15 pmPHL-ADL
27h 28m2 stops
Fiji Airways Logo
1:25 pm - 9:09 pmADL-PHL
23h 14m2 stops
$1,204Fiji Airways
Find Deal
Thu, Feb 5 - Sat, Feb 21
Qantas Airways Logo
5:17 pm - 10:45 pmPHL-MEL
37h 28m2 stops
Qantas Airways Logo
6:45 am - 7:24 pmMEL-PHL
28h 39m2 stops
$1,247Qantas Airways
Find Deal
Sat, Jan 31 - Thu, Feb 19
American Airlines Logo
2:27 pm - 5:25 amPHL-BNE
24h 58m2 stops
American Airlines Logo
8:05 pm - 7:03 amBNE-PHL
24h 58m1 stop
$1,354American Airlines
Find Deal
Sun, Aug 31 - Mon, Sep 15
American Airlines Logo
8:55 am - 5:25 amPHL-BNE
30h 30m1 stop
American Airlines Logo
8:05 pm - 7:05 amBNE-PHL
25h 00m1 stop
$1,362American Airlines
Find Deal
Sun, Sep 28 - Sun, Oct 5
United Airlines Logo
6:25 pm - 10:00 amPHL-MEL
23h 35m1 stop
United Airlines Logo
1:00 pm - 7:41 pmMEL-PHL
22h 41m1 stop
$1,386United Airlines
Find Deal
Tue, Nov 4 - Tue, Dec 2
United Airlines Logo
1:06 pm - 7:30 amPHL-MEL
28h 24m2 stops
United Airlines Logo
9:30 am - 5:26 amMEL-PHL
33h 56m2 stops
$1,390United Airlines
Find Deal
Wed, Sep 10 - Sun, Sep 21

Air Canada flights from Philadelphia to Australia

Our best Air Canada deals on Philadelphia to Australia flight tickets
Air Canada
Nov 11
PHL3:30 pmPhiladelphia
26h 05m
2 stops
SYD9:35 amSydney Kingsford Smith
Nov 18
SYD11:20 amSydney Kingsford Smith
43h 27m
2 stops
PHL2:47 pmPhiladelphia
Air Canada
Nov 1
PHL3:30 pmPhiladelphia
51h 05m
3 stops
SYD9:35 amSydney Kingsford Smith
Nov 16
SYD11:20 amSydney Kingsford Smith
43h 27m
2 stops
PHL2:47 pmPhiladelphia
Air Canada
Nov 1
PHL3:30 pmPhiladelphia
51h 05m
3 stops
SYD9:35 amSydney Kingsford Smith
Nov 16
SYD11:20 amSydney Kingsford Smith
43h 27m
3 stops
PHL2:47 pmPhiladelphia

Fiji Airways flights from Philadelphia to Australia

Our best Fiji Airways deals on Philadelphia to Australia flight tickets
Fiji Airways
Oct 25
PHL6:43 pmPhiladelphia
27h 02m
2 stops
SYD12:45 pmSydney Kingsford Smith
Nov 15
SYD2:30 pmSydney Kingsford Smith
23h 10m
2 stops
PHL9:40 pmPhiladelphia
Fiji Airways
Feb 5
PHL5:17 pmPhiladelphia
27h 28m
2 stops
ADL12:15 pmAdelaide
Feb 21
ADL1:25 pmAdelaide
23h 14m
2 stops
PHL9:09 pmPhiladelphia
Fiji Airways
Sep 24
PHL6:55 pmPhiladelphia
26h 50m
2 stops
SYD11:45 amSydney Kingsford Smith
Oct 11
SYD2:45 pmSydney Kingsford Smith
23h 05m
2 stops
PHL10:50 pmPhiladelphia

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to Australia 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 832,500 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from Philadelphia to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 11/11

3:30 pm-9:35 am

2 stops26h 05m

Sydney Kingsford Smith

Tue 11/18

11:20 am-2:47 pm

2 stops43h 27m

$835

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sat 11/1

3:30 pm-9:35 am

3 stops51h 05m

Sydney Kingsford Smith

Sun 11/16

11:20 am-2:47 pm

2 stops43h 27m

$842

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sat 10/25

6:43 pm-12:45 pm

2 stops27h 02m

Sydney Kingsford Smith

Sat 11/15

2:30 pm-9:40 pm

2 stops23h 10m

$1,177

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Tue 2/3

12:35 pm-5:15 pm

2 stops36h 40m

Melbourne

Tue 2/24

11:55 pm-9:09 pm

2 stops37h 14m

$1,200

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Thu 2/5

5:17 pm-12:15 pm

2 stops27h 28m

Adelaide

Sat 2/21

1:25 pm-9:09 pm

2 stops23h 14m

$1,204

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Sat 1/31

5:17 pm-10:45 pm

2 stops37h 28m

Melbourne

Thu 2/19

6:45 am-7:24 pm

2 stops28h 39m

$1,247

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Sun 8/31

2:27 pm-5:25 am

2 stops24h 58m

Brisbane

Mon 9/15

8:05 pm-7:03 am

1 stop24h 58m

$1,354

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Sun 9/28

8:55 am-5:25 am

1 stop30h 30m

Brisbane

Sun 10/5

8:05 pm-7:05 am

1 stop25h 00m

$1,362

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Tue 11/4

6:25 pm-10:00 am

1 stop23h 35m

Melbourne

Tue 12/2

1:00 pm-7:41 pm

1 stop22h 41m

$1,386

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Wed 9/10

1:06 pm-7:30 am

2 stops28h 24m

Melbourne

Sun 9/21

9:30 am-5:26 am

2 stops33h 56m

$1,390

Flights are sorted by cheapest round-trip flights first.

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

How to get the cheapest flight ticket from Philadelphia to Australia

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 Australia?

The month of February is, on average, the cheapest month to fly to Australia from Philadelphia, with most prices found around $1,153. If you aren’t able to travel during the month of February, then book flights to Australia from Philadelphia during September instead. Flights to Australia in September, while not as cheap as those in February, still average around $1,157.

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

The cheapest day to depart from Philadelphia to Australia is on a Sunday. Travelers who choose to depart for Australia on a Sunday will often find tickets for as low as $1,373. On the other hand, Thursday is the most expensive day to depart from Philadelphia because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,659.

What is the cheapest time of day to depart on your flight to Australia?

Flying to Australia from Philadelphia in the morning is the least expensive time of day to depart. momondo users have found prices as low as $1,449 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $2,063 on average. Flights to Australia from Philadelphia in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You are more likely to see cheaper flights to Australia from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $1,509 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Philadelphia for as low as $1,138 on momondo.

Can stopping save me money on Philadelphia to Australia flights?

You could potentially save up to 24% on your flight if you consider stops on a Philadelphia to Australia flight.

Cheap Philadelphia to Australia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Australia

Best Price Found

$522

Fastest flight time

22h 01m

Direct flights

None

Airports in Australia

9 airports
The best one-way flight to Australia from Philadelphia in the past 72 hours is $522. The best round-trip flight deal from Philadelphia to Australia found on momondo in the last 72 hours is $835.
The fastest flight from Philadelphia to Australia takes 22h 01m
There are no direct flights from Philadelphia to Australia. Popular non-direct routes for this connection are Philadelphia Airport - Sydney Kingsford Smith Airport, Philadelphia Airport - Cairns Airport and Philadelphia Airport - Melbourne Airport.
There are 9 airports near Australia: Canberra (CBR), Maroochydore Sunshine Coast (MCY), Melbourne (MEL), Brisbane (BNE), Cairns (CNS), Adelaide (ADL), Perth (PER), Coolangatta Gold Coast (OOL), Sydney Kingsford Smith (SYD)
  • When did momondo last update prices for flights from Philadelphia Airport to Australia?

    Prices for flights from Philadelphia Airport to Australia are updated daily.

  • How many operators does momondo search for flights from Philadelphia Airport to Australia?

  • How old do you have to be to fly from Philadelphia Airport to Australia?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Philadelphia Airport to Australia.

  • What documentation or ID do you need to fly to Australia?

    The necessary travel and health documents for your Australia 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 license 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.

Best airlines flying from Philadelphia to Australia

Compare and see reviews for airlines that fly from Philadelphia to Australia with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $337Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $717Free CancellationRating
8.0
7,980 reviews
Search Delta flights
United AirlinesPriceFrom $860Free CancellationRating
7.4
8,916 reviews
Search United Airlines flights
Fiji AirwaysPriceFrom $945Free CancellationRating
8.0
204 reviews
Search Fiji Airways flights
Air CanadaPriceFrom $945Free CancellationRating
7.1
9,949 reviews
Search Air Canada flights
Air New ZealandPriceFrom $1,220Free CancellationRating
8.0
504 reviews
Search Air New Zealand flights
Qantas AirwaysPriceFrom $1,294Free CancellationRating
7.5
895 reviews
Search Qantas Airways flights
Qatar AirwaysPriceFrom $1,296Free CancellationRating
7.4
3,608 reviews
Search Qatar Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Australia?

Finding the right flight to Australia from Philadelphia 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 Australia quick and easy, saving you time and money.

Can I find flights from Philadelphia to Australia with flexible booking policies on momondo?

Flights from Philadelphia to Australia 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 Philadelphia to Australia?

momondo provides multiple filters to help you find the best flight to Australia from Philadelphia. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

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

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1 adult
Tue 8/19
Tue 8/26

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