Cheap flights from Philadelphia to Australia from $718

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 8/25. 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
1 adult, Economy, 0 bags

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Find the cheapest flights from Philadelphia to Australia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Qantas Airways Logo
5:00 pm - 9:30 am
PHL
-
MEL
24h 30m
1 stop
Qantas Airways Logo
6:45 am - 5:18 pm
MEL
-
PHL
26h 33m
2 stops
$1,090Qantas Airways
Fri, Dec 4 - Thu, Dec 10
Qantas Airways Logo
3:55 pm - 9:30 am
PHL
-
MEL
25h 35m
1 stop
Qantas Airways Logo
6:30 pm - 5:18 pm
MEL
-
PHL
38h 48m
2 stops
$1,109Qantas Airways
Wed, Nov 11 - Fri, Dec 11
Air Canada Logo
10:05 am - 7:05 am
PHL
-
BNE
31h 00m
2 stops
Air Canada Logo
10:00 am - 2:49 pm
BNE
-
PHL
42h 49m
2 stops
$1,251Air Canada
Sun, Aug 2 - Wed, Aug 12
Air Canada Logo
10:05 am - 7:05 am
PHL
-
BNE
31h 00m
2 stops
Air Canada Logo
10:00 am - 2:47 pm
BNE
-
PHL
42h 47m
2 stops
$1,288Air Canada
Fri, Sep 25 - Sun, Oct 18
American Airlines Logo
7:17 am - 5:00 am
PHL
-
BNE
31h 43m
1 stop
American Airlines Logo
8:35 pm - 7:04 am
BNE
-
PHL
24h 29m
1 stop
$1,394American Airlines
Wed, Aug 12 - Sun, Aug 23
United Airlines Logo
9:25 am - 11:10 am
PHL
-
ADL
36h 15m
2 stops
United Airlines Logo
6:00 am - 5:17 pm
ADL
-
PHL
24h 47m
2 stops
$1,495United Airlines
Wed, Jul 29 - Wed, Aug 5
American Airlines Logo
4:22 pm - 12:10 pm
PHL
-
CBR
29h 48m
2 stops
American Airlines Logo
6:10 am - 8:40 pm
CBR
-
PHL
28h 30m
2 stops
$1,535American Airlines
Mon, Jun 29 - Mon, Jul 6
United Airlines Logo
6:13 pm - 1:00 pm
PHL
-
ADL
27h 17m
2 stops
United Airlines Logo
8:40 am - 9:20 pm
ADL
-
PHL
28h 10m
2 stops
$1,587United Airlines
Sat, Nov 7 - Sat, Nov 14
Air New Zealand Logo
6:13 pm - 6:10 pm
PHL
-
CNS
33h 57m
3 stops
Air New Zealand Logo
3:45 pm - 10:31 pm
CNS
-
PHL
44h 46m
3 stops
$2,184Air New Zealand
Fri, Aug 21 - Fri, Sep 4
Air New Zealand Logo
1:04 pm - 10:45 am
PHL
-
CNS
31h 41m
2 stops
Air New Zealand Logo
6:20 pm - 1:23 am
CNS
-
PHL
45h 03m
2 stops
$2,431Air New Zealand
Thu, Jun 25 - Sun, Jun 28

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Air New Zealand flights from Philadelphia to Australia

Our best Air New Zealand deals on Philadelphia to Australia flight tickets
Air New Zealand
Aug 4
PHL10:05 amPhiladelphia
31h 15m
2 stops
SYD7:20 amSydney Kingsford Smith
Sep 10
SYD9:20 amSydney Kingsford Smith
27h 26m
1 stop
PHL10:46 pmPhiladelphia
$1,350
Air New Zealand
Jun 24
PHL4:14 pmPhiladelphia
24h 41m
2 stops
SYD6:55 amSydney Kingsford Smith
Jul 29
SYD9:30 amSydney Kingsford Smith
27h 50m
2 stops
PHL11:20 pmPhiladelphia
$1,452
Air New Zealand
Jul 8
PHL1:04 pmPhiladelphia
28h 26m
2 stops
MEL7:30 amMelbourne
Jul 15
MEL9:30 amMelbourne
26h 59m
2 stops
PHL10:29 pmPhiladelphia
$1,564

Qantas Airways flights from Philadelphia to Australia

Our best Qantas Airways deals on Philadelphia to Australia flight tickets
Qantas Airways
Dec 4
PHL5:00 pmPhiladelphia
24h 30m
1 stop
MEL9:30 amMelbourne
Dec 10
MEL6:45 amMelbourne
26h 33m
2 stops
PHL5:18 pmPhiladelphia
$1,090
Qantas Airways
Nov 11
PHL3:55 pmPhiladelphia
25h 35m
1 stop
MEL9:30 amMelbourne
Dec 11
MEL6:30 pmMelbourne
38h 48m
2 stops
PHL5:18 pmPhiladelphia
$1,109
Qantas Airways
Oct 18
PHL5:43 pmPhiladelphia
23h 22m
1 stop
SYD8:05 amSydney Kingsford Smith
Oct 31
SYD5:50 pmSydney Kingsford Smith
41h 15m
2 stops
PHL8:05 pmPhiladelphia
$1,187

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 June 14, 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
Quickest round-trip

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Fri 12/4

5:00 pm-9:30 am

1 stop24h 30m

Melbourne

Thu 12/10

6:45 am-5:18 pm

2 stops26h 33m

$1,090

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Wed 11/11

3:55 pm-9:30 am

1 stop25h 35m

Melbourne

Fri 12/11

6:30 pm-5:18 pm

2 stops38h 48m

$1,109

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Sun 8/2

10:05 am-7:05 am

2 stops31h 00m

Brisbane

Wed 8/12

10:00 am-2:49 pm

2 stops42h 49m

$1,251

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Fri 9/25

10:05 am-7:05 am

2 stops31h 00m

Brisbane

Sun 10/18

10:00 am-2:47 pm

2 stops42h 47m

$1,288

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Wed 8/12

7:17 am-5:00 am

1 stop31h 43m

Brisbane

Sun 8/23

8:35 pm-7:04 am

1 stop24h 29m

$1,394

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Wed 7/29

9:25 am-11:10 am

2 stops36h 15m

Adelaide

Wed 8/5

6:00 am-5:17 pm

2 stops24h 47m

$1,495

PhiladelphiaCanberra

PHL - CBR

PHLCBR

Philadelphia

Mon 6/29

4:22 pm-12:10 pm

2 stops29h 48m

Canberra

Mon 7/6

6:10 am-8:40 pm

2 stops28h 30m

$1,535

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sat 11/7

6:13 pm-1:00 pm

2 stops27h 17m

Adelaide

Sat 11/14

8:40 am-9:20 pm

2 stops28h 10m

$1,587

PhiladelphiaCairns

PHL - CNS

PHLCNS

Philadelphia

Fri 8/21

6:13 pm-6:10 pm

3 stops33h 57m

Cairns

Fri 9/4

3:45 pm-10:31 pm

3 stops44h 46m

$2,184

PhiladelphiaCairns

PHL - CNS

PHLCNS

Philadelphia

Thu 6/25

1:04 pm-10:45 am

2 stops31h 41m

Cairns

Sun 6/28

6:20 pm-1:23 am

2 stops45h 03m

$2,431

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 August is, on average, the cheapest month to fly to Australia from Philadelphia, with most prices found around $250. If you aren’t able to travel during the month of August, then book flights to Australia from Philadelphia during November instead. Flights to Australia in November, while not as cheap as those in August, still average around $258.

How far in advance should I book a flight from Philadelphia 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 $1,468 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 45% 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

23h 22m

Direct flights

None
The fastest flight from Philadelphia to Australia takes 23h 22m
There are no direct flights from Philadelphia to Australia. There are no popular flight routes from Philadelphia to Australia.

Frequently asked questions about flying 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
Air CanadaPriceFrom $765Free CancellationRating
7.1
11,190 reviews
Search Air Canada flights
United AirlinesPriceFrom $843Free CancellationRating
7.4
9,824 reviews
Search United Airlines flights
Fiji AirwaysPriceFrom $870Free CancellationRating
8.1
244 reviews
Search Fiji Airways flights
Qantas AirwaysPriceFrom $945Free CancellationRating
7.5
1,046 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $1,198Free CancellationRating
7.1
11,664 reviews
Search American Airlines flights
Air New ZealandPriceFrom $1,418Free CancellationRating
8.0
645 reviews
Search Air New Zealand flights
Qatar AirwaysPriceFrom $1,447Free CancellationRating
7.3
3,726 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 7/14
Tue 7/21

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