Cheap flights from Philadelphia to Australia from $512

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 2/7. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Qantas Airways Logo
2:31 pm - 9:30 am
PHL
-
MEL
26h 59m
1 stop
Qantas Airways Logo
6:45 am - 7:48 pm
MEL
-
PHL
29h 03m
2 stops
$911Qantas Airways
Sat, Feb 21 - Wed, Mar 4
Qantas Airways Logo
2:31 pm - 9:30 am
PHL
-
MEL
26h 59m
1 stop
Qantas Airways Logo
6:45 am - 7:48 pm
MEL
-
PHL
29h 03m
2 stops
$932Qantas Airways
Sat, Feb 21 - Wed, Mar 4
Qantas Airways Logo
5:39 pm - 5:10 pm
PHL
-
BNE
32h 31m
2 stops
Qantas Airways Logo
7:40 pm - 6:55 am
BNE
-
PHL
26h 15m
1 stop
$936Qantas Airways
Sun, Feb 1 - Sun, Feb 15
Qantas Airways Logo
2:30 pm - 10:05 am
PHL
-
SYD
51h 35m
2 stops
Qantas Airways Logo
11:20 am - 6:55 am
SYD
-
PHL
35h 35m
1 stop
$940Qantas Airways
Mon, Feb 2 - Mon, Mar 2
Qantas Airways Logo
2:30 pm - 9:10 am
PHL
-
SYD
50h 40m
2 stops
Qantas Airways Logo
11:20 am - 8:16 pm
SYD
-
PHL
24h 56m
1 stop
$941Qantas Airways
Sat, Jan 24 - Mon, Feb 9
American Airlines Logo
2:16 pm - 11:15 am
PHL
-
CBR
28h 59m
2 stops
American Airlines Logo
5:45 pm - 6:00 am
CBR
-
PHL
28h 15m
2 stops
$1,363American Airlines
Fri, Feb 27 - Fri, Mar 6
Air New Zealand Logo
12:44 pm - 9:45 am
PHL
-
OOL
30h 01m
2 stops
Air New Zealand Logo
6:00 am - 10:57 pm
OOL
-
PHL
31h 57m
3 stops
$1,512Air New Zealand
Wed, Feb 25 - Wed, Mar 4
Air Canada Logo
7:50 am - 1:55 pm
PHL
-
ADL
38h 35m
3 stops
Air Canada Logo
6:00 am - 10:46 pm
ADL
-
PHL
32h 16m
3 stops
$1,878Air Canada
Tue, Jan 27 - Thu, Feb 19
United Airlines Logo
6:20 pm - 2:20 pm
PHL
-
OOL
29h 00m
2 stops
United Airlines Logo
7:20 am - 11:30 pm
OOL
-
PHL
31h 10m
3 stops
$2,900United Airlines
Sun, Feb 22 - Thu, Feb 26
United Airlines Logo
6:20 pm - 2:00 pm
PHL
-
CNS
28h 40m
2 stops
United Airlines Logo
6:00 am - 9:31 pm
CNS
-
PHL
30h 31m
2 stops
$2,971United Airlines
Fri, Feb 27 - Fri, Mar 6

Qantas Airways flights from Philadelphia to Australia

Our best Qantas Airways deals on Philadelphia to Australia flight tickets
Qantas Airways
Feb 21
PHL2:31 pmPhiladelphia
26h 59m
1 stop
MEL9:30 amMelbourne
Mar 4
MEL6:45 amMelbourne
29h 03m
2 stops
PHL7:48 pmPhiladelphia
$911
Qantas Airways
Feb 21
PHL2:31 pmPhiladelphia
26h 59m
1 stop
MEL9:30 amMelbourne
Mar 4
MEL6:45 amMelbourne
29h 03m
2 stops
PHL7:48 pmPhiladelphia
$932
Qantas Airways
Feb 1
PHL5:39 pmPhiladelphia
32h 31m
2 stops
BNE5:10 pmBrisbane
Feb 15
BNE7:40 pmBrisbane
26h 15m
1 stop
PHL6:55 amPhiladelphia
$936

Air Canada flights from Philadelphia to Australia

Our best Air Canada deals on Philadelphia to Australia flight tickets
Air Canada
May 18
PHL10:05 amPhiladelphia
31h 15m
2 stops
SYD7:20 amSydney Kingsford Smith
May 27
SYD9:20 amSydney Kingsford Smith
26h 13m
2 stops
PHL9:33 pmPhiladelphia
$1,124
Air Canada
May 18
PHL10:05 amPhiladelphia
31h 15m
3 stops
SYD7:20 amSydney Kingsford Smith
May 27
SYD9:20 amSydney Kingsford Smith
26h 13m
2 stops
PHL9:33 pmPhiladelphia
$1,132
Air Canada
Mar 24
PHL7:50 amPhiladelphia
33h 45m
2 stops
SYD8:35 amSydney Kingsford Smith
Apr 10
SYD9:20 amSydney Kingsford Smith
27h 23m
2 stops
PHL10:43 pmPhiladelphia
$1,134

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 January 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

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Sat 2/21

2:31 pm-9:30 am

1 stop26h 59m

Melbourne

Wed 3/4

6:45 am-7:48 pm

2 stops29h 03m

$911

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Sat 2/21

2:31 pm-9:30 am

1 stop26h 59m

Melbourne

Wed 3/4

6:45 am-7:48 pm

2 stops29h 03m

$932

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Sun 2/1

5:39 pm-5:10 pm

2 stops32h 31m

Brisbane

Sun 2/15

7:40 pm-6:55 am

1 stop26h 15m

$936

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 2/2

2:30 pm-10:05 am

2 stops51h 35m

Sydney Kingsford Smith

Mon 3/2

11:20 am-6:55 am

1 stop35h 35m

$940

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sat 1/24

2:30 pm-9:10 am

2 stops50h 40m

Sydney Kingsford Smith

Mon 2/9

11:20 am-8:16 pm

1 stop24h 56m

$941

PhiladelphiaCanberra

PHL - CBR

PHLCBR

Philadelphia

Fri 2/27

2:16 pm-11:15 am

2 stops28h 59m

Canberra

Fri 3/6

5:45 pm-6:00 am

2 stops28h 15m

$1,363

PhiladelphiaCoolangatta

PHL - OOL

PHLOOL

Philadelphia

Wed 2/25

12:44 pm-9:45 am

2 stops30h 01m

Coolangatta Gold Coast

Wed 3/4

6:00 am-10:57 pm

3 stops31h 57m

$1,512

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 1/27

7:50 am-1:55 pm

3 stops38h 35m

Adelaide

Thu 2/19

6:00 am-10:46 pm

3 stops32h 16m

$1,878

PhiladelphiaCoolangatta

PHL - OOL

PHLOOL

Philadelphia

Sun 2/22

6:20 pm-2:20 pm

2 stops29h 00m

Coolangatta Gold Coast

Thu 2/26

7:20 am-11:30 pm

3 stops31h 10m

$2,900

PhiladelphiaCairns

PHL - CNS

PHLCNS

Philadelphia

Fri 2/27

6:20 pm-2:00 pm

2 stops28h 40m

Cairns

Fri 3/6

6:00 am-9:31 pm

2 stops30h 31m

$2,971

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 $1,046. 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 $1,156.

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 $1,426 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 $1,050 on momondo.

Can stopping save me money on Philadelphia to Australia flights?

You could potentially save up to 4% 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

26h 05m

Direct flights

None
The fastest flight from Philadelphia to Australia takes 26h 05m
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
DeltaPriceFrom $535Free CancellationRating
7.9
8,040 reviews
Search Delta flights
Air CanadaPriceFrom $765Free CancellationRating
7.1
10,619 reviews
Search Air Canada flights
United AirlinesPriceFrom $859Free CancellationRating
7.4
9,156 reviews
Search United Airlines flights
Fiji AirwaysPriceFrom $945Free CancellationRating
8.0
216 reviews
Search Fiji Airways flights
Qantas AirwaysPriceFrom $1,044Free CancellationRating
7.5
970 reviews
Search Qantas Airways flights
Air New ZealandPriceFrom $1,220Free CancellationRating
8.0
570 reviews
Search Air New Zealand flights
Qatar AirwaysPriceFrom $1,296Free CancellationRating
7.4
3,714 reviews
Search Qatar Airways flights
American AirlinesPriceFrom $1,350Free CancellationRating
7.2
11,120 reviews
Search American Airlines 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
Fri 2/13
Fri 2/20

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