Cheap flights from Philadelphia to Australia from $497

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 4/16. 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
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Qantas Airways Logo
2:18 pm - 9:20 am
PHL
-
SYD
28h 02m
2 stops
Qantas Airways Logo
9:25 pm - 7:08 am
SYD
-
PHL
23h 43m
1 stop
$1,082Qantas Airways
Mon, Mar 23 - Tue, Apr 21
Qantas Airways Logo
7:00 pm - 10:55 am
PHL
-
SYD
48h 55m
2 stops
Qantas Airways Logo
9:25 pm - 7:08 am
SYD
-
PHL
23h 43m
1 stop
$1,088Qantas Airways
Mon, Mar 23 - Tue, Apr 21
Qantas Airways Logo
2:18 pm - 5:00 am
PHL
-
BNE
24h 42m
1 stop
Qantas Airways Logo
8:35 pm - 5:52 am
BNE
-
PHL
23h 17m
1 stop
$1,155Qantas Airways
Mon, Apr 6 - Sun, Apr 19
American Airlines Logo
8:55 am - 5:00 am
PHL
-
BNE
30h 05m
1 stop
American Airlines Logo
8:35 pm - 9:28 am
BNE
-
PHL
26h 53m
2 stops
$1,197American Airlines
Wed, May 13 - Sun, May 24
American Airlines Logo
3:27 pm - 5:00 am
PHL
-
BNE
23h 33m
2 stops
American Airlines Logo
8:35 pm - 7:00 am
BNE
-
PHL
24h 25m
1 stop
$1,198American Airlines
Wed, May 13 - Sun, May 24
Fiji Airways Logo
5:45 pm - 7:20 pm
PHL
-
MEL
35h 35m
2 stops
Fiji Airways Logo
7:30 am - 12:38 am
MEL
-
PHL
31h 08m
2 stops
$1,199Fiji Airways
Sat, Aug 8 - Sat, Aug 22
Fiji Airways Logo
6:32 pm - 7:20 pm
PHL
-
MEL
34h 48m
2 stops
Fiji Airways Logo
7:30 am - 10:47 pm
MEL
-
PHL
29h 17m
2 stops
$1,227Fiji Airways
Sat, Apr 25 - Sat, May 2
Air Canada Logo
9:15 am - 10:40 am
PHL
-
OOL
35h 25m
3 stops
Air Canada Logo
6:00 am - 10:43 pm
OOL
-
PHL
30h 43m
3 stops
$2,274Air Canada
Mon, Apr 20 - Mon, Apr 27
Air Canada Logo
7:00 am - 10:40 am
PHL
-
OOL
37h 40m
3 stops
Air Canada Logo
6:00 am - 10:46 pm
OOL
-
PHL
30h 46m
3 stops
$2,369Air Canada
Sun, Aug 16 - Thu, Aug 20
United Airlines Logo
6:21 pm - 12:25 pm
PHL
-
OOL
28h 04m
2 stops
United Airlines Logo
6:00 am - 5:15 pm
OOL
-
PHL
25h 15m
2 stops
$2,615United Airlines
Sun, Apr 19 - Sun, Apr 26

Qantas Airways flights from Philadelphia to Australia

Our best Qantas Airways deals on Philadelphia to Australia flight tickets
Qantas Airways
Mar 23
PHL2:18 pmPhiladelphia
28h 02m
2 stops
SYD9:20 amSydney Kingsford Smith
Apr 21
SYD9:25 pmSydney Kingsford Smith
23h 43m
1 stop
PHL7:08 amPhiladelphia
$1,082
Qantas Airways
Mar 23
PHL7:00 pmPhiladelphia
48h 55m
2 stops
SYD10:55 amSydney Kingsford Smith
Apr 21
SYD9:25 pmSydney Kingsford Smith
23h 43m
1 stop
PHL7:08 amPhiladelphia
$1,088
Qantas Airways
Mar 12
PHL2:18 pmPhiladelphia
27h 42m
1 stop
SYD9:00 amSydney Kingsford Smith
Mar 21
SYD5:50 pmSydney Kingsford Smith
35h 47m
2 stops
PHL2:37 pmPhiladelphia
$1,117

American Airlines flights from Philadelphia to Australia

Our best American Airlines deals on Philadelphia to Australia flight tickets
American Airlines
May 13
PHL8:55 amPhiladelphia
30h 05m
1 stop
BNE5:00 amBrisbane
May 24
BNE8:35 pmBrisbane
26h 53m
2 stops
PHL9:28 amPhiladelphia
$1,197
American Airlines
May 13
PHL3:27 pmPhiladelphia
23h 33m
2 stops
BNE5:00 amBrisbane
May 24
BNE8:35 pmBrisbane
24h 25m
1 stop
PHL7:00 amPhiladelphia
$1,198
American Airlines
Apr 20
PHL5:37 pmPhiladelphia
27h 53m
2 stops
BNE11:30 amBrisbane
Apr 27
BNE8:35 pmBrisbane
23h 03m
2 stops
PHL5:38 amPhiladelphia
$1,217

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 March 7, 2026.
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

Cheapest round-trip

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 3/23

2:18 pm-9:20 am

2 stops28h 02m

Sydney Kingsford Smith

Tue 4/21

9:25 pm-7:08 am

1 stop23h 43m

$1,082

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 3/23

7:00 pm-10:55 am

2 stops48h 55m

Sydney Kingsford Smith

Tue 4/21

9:25 pm-7:08 am

1 stop23h 43m

$1,088

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Mon 4/6

2:18 pm-5:00 am

1 stop24h 42m

Brisbane

Sun 4/19

8:35 pm-5:52 am

1 stop23h 17m

$1,155

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Wed 5/13

8:55 am-5:00 am

1 stop30h 05m

Brisbane

Sun 5/24

8:35 pm-9:28 am

2 stops26h 53m

$1,197
Quickest round-trip

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Wed 5/13

3:27 pm-5:00 am

2 stops23h 33m

Brisbane

Sun 5/24

8:35 pm-7:00 am

1 stop24h 25m

$1,198

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Sat 8/8

5:45 pm-7:20 pm

2 stops35h 35m

Melbourne

Sat 8/22

7:30 am-12:38 am

2 stops31h 08m

$1,199

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Sat 4/25

6:32 pm-7:20 pm

2 stops34h 48m

Melbourne

Sat 5/2

7:30 am-10:47 pm

2 stops29h 17m

$1,227

PhiladelphiaCoolangatta

PHL - OOL

PHLOOL

Philadelphia

Mon 4/20

9:15 am-10:40 am

3 stops35h 25m

Coolangatta Gold Coast

Mon 4/27

6:00 am-10:43 pm

3 stops30h 43m

$2,274

PhiladelphiaCoolangatta

PHL - OOL

PHLOOL

Philadelphia

Sun 8/16

7:00 am-10:40 am

3 stops37h 40m

Coolangatta Gold Coast

Thu 8/20

6:00 am-10:46 pm

3 stops30h 46m

$2,369

PhiladelphiaCoolangatta

PHL - OOL

PHLOOL

Philadelphia

Sun 4/19

6:21 pm-12:25 pm

2 stops28h 04m

Coolangatta Gold Coast

Sun 4/26

6:00 am-5:15 pm

2 stops25h 15m

$2,615

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 April is, on average, the cheapest month to fly to Australia from Philadelphia, with most prices found around $959. If you aren’t able to travel during the month of April, then book flights to Australia from Philadelphia during February instead. Flights to Australia in February, while not as cheap as those in April, still average around $1,059.

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 $1,504 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 $1,073 on momondo.

Can stopping save me money on Philadelphia to Australia flights?

You could potentially save up to 8% 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

Fastest flight time

21h 17m

Direct flights

None
The fastest flight from Philadelphia to Australia takes 21h 17m
There are no direct flights from Philadelphia to Australia. There are no popular flight routes from Philadelphia to Australia.
  • 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
United AirlinesPriceFrom $539Free CancellationRating
7.4
9,403 reviews
Search United Airlines flights
Air CanadaPriceFrom $765Free CancellationRating
7.1
10,787 reviews
Search Air Canada flights
Qantas AirwaysPriceFrom $945Free CancellationRating
7.5
1,002 reviews
Search Qantas Airways flights
Fiji AirwaysPriceFrom $954Free CancellationRating
8.0
228 reviews
Search Fiji Airways flights
American AirlinesPriceFrom $1,159Free CancellationRating
7.1
11,399 reviews
Search American Airlines flights
Air New ZealandPriceFrom $1,418Free CancellationRating
8.0
608 reviews
Search Air New Zealand flights
Qatar AirwaysPriceFrom $1,443Free CancellationRating
7.4
3,746 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
Mon 4/6
Mon 4/13

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