Cheap flights from Philadelphia to Australia from $524

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 4/21. 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.
Multiple Airlines Logo
6:32 pm - 7:20 pm
PHL
-
MEL
34h 48m
2 stops
Multiple Airlines Logo
7:30 am - 10:47 pm
MEL
-
PHL
29h 17m
2 stops
$1,111Multiple Airlines
Sat, May 2 - Sat, May 9
United Airlines Logo
6:23 pm - 6:55 am
PHL
-
SYD
22h 32m
1 stop
United Airlines Logo
10:20 am - 1:29 am
SYD
-
PHL
29h 09m
1 stop
$1,128United Airlines
Fri, Jun 19 - Wed, Jul 8
Qantas Airways Logo
3:42 pm - 5:00 am
PHL
-
BNE
23h 18m
1 stop
Qantas Airways Logo
8:35 pm - 7:00 am
BNE
-
PHL
24h 25m
1 stop
$1,290Qantas Airways
Wed, May 13 - Sun, May 24
Qantas Airways Logo
5:37 pm - 5:00 am
PHL
-
BNE
21h 23m
1 stop
Qantas Airways Logo
8:35 pm - 7:00 am
BNE
-
PHL
24h 25m
1 stop
$1,291Qantas Airways
Wed, May 13 - Sun, May 24
American Airlines Logo
5:37 pm - 5:00 am
PHL
-
BNE
21h 23m
1 stop
American Airlines Logo
8:35 pm - 8:06 am
BNE
-
PHL
25h 31m
1 stop
$1,293American Airlines
Wed, May 13 - Sun, May 24
American Airlines Logo
8:55 am - 5:00 am
PHL
-
BNE
30h 05m
1 stop
American Airlines Logo
8:35 pm - 7:25 am
BNE
-
PHL
24h 50m
2 stops
$1,297American Airlines
Wed, May 13 - Sun, May 24
Air New Zealand Logo
6:23 pm - 11:05 am
PHL
-
ADL
27h 12m
2 stops
Air New Zealand Logo
6:00 am - 5:17 pm
ADL
-
PHL
24h 47m
2 stops
$1,529Air New Zealand
Mon, Jun 15 - Tue, Jul 7
Air New Zealand Logo
6:06 pm - 1:05 pm
PHL
-
CBR
28h 59m
2 stops
Air New Zealand Logo
8:55 am - 10:34 pm
CBR
-
PHL
27h 39m
3 stops
$1,994Air New Zealand
Wed, May 6 - Wed, May 13
Air Canada Logo
10:50 am - 10:40 am
PHL
-
OOL
33h 50m
3 stops
Air Canada Logo
6:00 am - 10:46 pm
OOL
-
PHL
30h 46m
3 stops
$2,469Air Canada
Sun, Aug 16 - Thu, Aug 20
Air Canada Logo
10:25 am - 3:55 pm
PHL
-
CNS
39h 30m
3 stops
Air Canada Logo
4:35 pm - 10:43 pm
CNS
-
PHL
44h 08m
3 stops
$2,645Air Canada
Thu, May 7 - Mon, May 11

Qantas Airways flights from Philadelphia to Australia

Our best Qantas Airways deals on Philadelphia to Australia flight tickets
Qantas Airways
May 4
PHL5:37 pmPhiladelphia
23h 28m
1 stop
SYD7:05 amSydney Kingsford Smith
May 11
SYD9:10 amSydney Kingsford Smith
23h 44m
1 stop
PHL6:54 pmPhiladelphia
$1,253
Qantas Airways
May 3
PHL5:37 pmPhiladelphia
23h 28m
1 stop
SYD7:05 amSydney Kingsford Smith
May 10
SYD9:25 pmSydney Kingsford Smith
23h 43m
1 stop
PHL7:08 amPhiladelphia
$1,285
Qantas Airways
May 13
PHL3:42 pmPhiladelphia
23h 18m
1 stop
BNE5:00 amBrisbane
May 24
BNE8:35 pmBrisbane
24h 25m
1 stop
PHL7:00 amPhiladelphia
$1,290

Air New Zealand flights from Philadelphia to Australia

Our best Air New Zealand deals on Philadelphia to Australia flight tickets
Air New Zealand
Sep 14
PHL6:37 pmPhiladelphia
22h 18m
1 stop
SYD6:55 amSydney Kingsford Smith
Sep 27
SYD10:20 amSydney Kingsford Smith
35h 25m
1 stop
PHL7:45 amPhiladelphia
$1,190
Air New Zealand
May 10
PHL6:00 amPhiladelphia
34h 55m
1 stop
SYD6:55 amSydney Kingsford Smith
May 16
SYD10:20 amSydney Kingsford Smith
35h 40m
1 stop
PHL8:00 amPhiladelphia
$1,200
Air New Zealand
Jun 15
PHL6:23 pmPhiladelphia
27h 12m
2 stops
ADL11:05 amAdelaide
Jul 7
ADL6:00 amAdelaide
24h 47m
2 stops
PHL5:17 pmPhiladelphia
$1,529

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 23, 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

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Sat 5/2

6:32 pm-7:20 pm

2 stops34h 48m

Melbourne

Sat 5/9

7:30 am-10:47 pm

2 stops29h 17m

$1,111

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Fri 6/19

6:23 pm-6:55 am

1 stop22h 32m

Sydney Kingsford Smith

Wed 7/8

10:20 am-1:29 am

1 stop29h 09m

$1,128

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Wed 5/13

3:42 pm-5:00 am

1 stop23h 18m

Brisbane

Sun 5/24

8:35 pm-7:00 am

1 stop24h 25m

$1,290
Quickest round-trip

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Wed 5/13

5:37 pm-5:00 am

1 stop21h 23m

Brisbane

Sun 5/24

8:35 pm-7:00 am

1 stop24h 25m

$1,291

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Wed 5/13

5:37 pm-5:00 am

1 stop21h 23m

Brisbane

Sun 5/24

8:35 pm-8:06 am

1 stop25h 31m

$1,293

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Wed 5/13

8:55 am-5:00 am

1 stop30h 05m

Brisbane

Sun 5/24

8:35 pm-7:25 am

2 stops24h 50m

$1,297

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Mon 6/15

6:23 pm-11:05 am

2 stops27h 12m

Adelaide

Tue 7/7

6:00 am-5:17 pm

2 stops24h 47m

$1,529

PhiladelphiaCanberra

PHL - CBR

PHLCBR

Philadelphia

Wed 5/6

6:06 pm-1:05 pm

2 stops28h 59m

Canberra

Wed 5/13

8:55 am-10:34 pm

3 stops27h 39m

$1,994

PhiladelphiaCoolangatta

PHL - OOL

PHLOOL

Philadelphia

Sun 8/16

10:50 am-10:40 am

3 stops33h 50m

Coolangatta Gold Coast

Thu 8/20

6:00 am-10:46 pm

3 stops30h 46m

$2,469

PhiladelphiaCairns

PHL - CNS

PHLCNS

Philadelphia

Thu 5/7

10:25 am-3:55 pm

3 stops39h 30m

Cairns

Mon 5/11

4:35 pm-10:43 pm

3 stops44h 08m

$2,645

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 $1,488 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 $1,136 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 23m

Direct flights

None
The fastest flight from Philadelphia to Australia takes 21h 23m
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
9,462 reviews
Search United Airlines flights
Qantas AirwaysPriceFrom $945Free CancellationRating
7.5
1,009 reviews
Search Qantas Airways flights
Fiji AirwaysPriceFrom $954Free CancellationRating
8.1
235 reviews
Search Fiji Airways flights
Air CanadaPriceFrom $959Free CancellationRating
7.1
10,835 reviews
Search Air Canada flights
American AirlinesPriceFrom $1,159Free CancellationRating
7.1
11,486 reviews
Search American Airlines flights
Air New ZealandPriceFrom $1,418Free CancellationRating
8.0
618 reviews
Search Air New Zealand flights
Qatar AirwaysPriceFrom $1,447Free CancellationRating
7.4
3,732 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
Wed 4/22
Wed 4/29

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