Cheap flights from Philadelphia to Australia from $547

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 5/8. 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

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Multiple Airlines Logo
12:47 pm - 11:50 am
PHL
-
SYD
33h 03m
3 stops
Multiple Airlines Logo
1:15 pm - 5:37 am
SYD
-
PHL
54h 22m
3 stops
$1,143Multiple Airlines
Sun, May 3 - Sun, May 10
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
$1,185Fiji Airways
Sat, May 9 - Sat, May 16
Qantas Airways Logo
5:37 pm - 5:00 am
PHL
-
BNE
21h 23m
1 stop
Qantas Airways Logo
10:05 am - 4:25 pm
BNE
-
PHL
20h 20m
1 stop
$1,384Qantas Airways
Mon, Apr 27 - Sun, May 10
American Airlines Logo
3:21 pm - 5:00 am
PHL
-
BNE
23h 39m
2 stops
American Airlines Logo
10:05 am - 11:18 pm
BNE
-
PHL
27h 13m
1 stop
$1,386American Airlines
Mon, Apr 27 - Sun, May 10
American Airlines Logo
3:42 pm - 5:00 am
PHL
-
BNE
23h 18m
1 stop
American Airlines Logo
8:35 pm - 8:06 am
BNE
-
PHL
25h 31m
1 stop
$1,391American Airlines
Wed, May 13 - Sun, May 24
Qantas Airways Logo
3:29 pm - 10:00 am
PHL
-
MEL
28h 31m
2 stops
Qantas Airways Logo
1:35 pm - 9:10 pm
MEL
-
PHL
21h 35m
1 stop
$1,396Qantas Airways
Sun, May 24 - Wed, Aug 12
Air Canada Logo
10:25 am - 10:40 am
PHL
-
OOL
34h 15m
3 stops
Air Canada Logo
6:00 am - 10:43 pm
OOL
-
PHL
30h 43m
3 stops
$2,107Air Canada
Sat, May 2 - Sat, May 9
Air Canada Logo
6:00 am - 10:40 am
PHL
-
OOL
38h 40m
3 stops
Air Canada Logo
6:00 am - 10:04 am
OOL
-
PHL
42h 04m
3 stops
$2,274Air Canada
Wed, Jun 10 - Tue, Jun 30
United Airlines Logo
9:55 am - 1:15 pm
PHL
-
CBR
37h 20m
3 stops
United Airlines Logo
8:10 am - 1:29 am
CBR
-
PHL
31h 19m
2 stops
$2,824United Airlines
Mon, May 18 - Mon, May 25
United Airlines Logo
9:25 am - 1:15 pm
PHL
-
CBR
37h 50m
2 stops
United Airlines Logo
7:15 am - 1:29 am
CBR
-
PHL
32h 14m
2 stops
$3,113United Airlines
Sat, May 23 - Wed, May 27

Delta flights from Philadelphia to Australia

Our best Delta deals on Philadelphia to Australia flight tickets
Delta
Sep 14
PHL10:21 amPhiladelphia
30h 29m
2 stops
SYD6:50 amSydney Kingsford Smith
Sep 27
SYD9:15 amSydney Kingsford Smith
27h 46m
2 stops
PHL11:01 pmPhiladelphia
$1,460
Delta
May 3
PHL1:20 pmPhiladelphia
27h 30m
2 stops
SYD6:50 amSydney Kingsford Smith
May 11
SYD9:15 amSydney Kingsford Smith
26h 57m
2 stops
PHL10:12 pmPhiladelphia
$1,461
Delta
May 2
PHL5:32 pmPhiladelphia
47h 18m
2 stops
SYD6:50 amSydney Kingsford Smith
May 11
SYD9:15 amSydney Kingsford Smith
22h 12m
2 stops
PHL5:27 pmPhiladelphia
$1,480

Qantas Airways flights from Philadelphia to Australia

Our best Qantas Airways deals on Philadelphia to Australia flight tickets
Qantas Airways
Apr 27
PHL5:37 pmPhiladelphia
21h 23m
1 stop
BNE5:00 amBrisbane
May 10
BNE10:05 amBrisbane
20h 20m
1 stop
PHL4:25 pmPhiladelphia
$1,384
Qantas Airways
May 24
PHL3:29 pmPhiladelphia
28h 31m
2 stops
MEL10:00 amMelbourne
Aug 12
MEL1:35 pmMelbourne
21h 35m
1 stop
PHL9:10 pmPhiladelphia
$1,396
Qantas Airways
Apr 22
PHL5:37 pmPhiladelphia
21h 23m
1 stop
BNE5:00 amBrisbane
May 8
BNE8:35 pmBrisbane
23h 17m
1 stop
PHL5:52 amPhiladelphia
$1,401

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 April 8, 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

Sun 5/3

12:47 pm-11:50 am

3 stops33h 03m

Sydney Kingsford Smith

Sun 5/10

1:15 pm-5:37 am

3 stops54h 22m

$1,143

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Sat 5/9

6:32 pm-7:20 pm

2 stops34h 48m

Melbourne

Sat 5/16

7:30 am-10:47 pm

2 stops29h 17m

$1,185
Quickest round-trip

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Mon 4/27

5:37 pm-5:00 am

1 stop21h 23m

Brisbane

Sun 5/10

10:05 am-4:25 pm

1 stop20h 20m

$1,384

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Mon 4/27

3:21 pm-5:00 am

2 stops23h 39m

Brisbane

Sun 5/10

10:05 am-11:18 pm

1 stop27h 13m

$1,386

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Wed 5/13

3:42 pm-5:00 am

1 stop23h 18m

Brisbane

Sun 5/24

8:35 pm-8:06 am

1 stop25h 31m

$1,391

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Sun 5/24

3:29 pm-10:00 am

2 stops28h 31m

Melbourne

Wed 8/12

1:35 pm-9:10 pm

1 stop21h 35m

$1,396

PhiladelphiaCoolangatta

PHL - OOL

PHLOOL

Philadelphia

Sat 5/2

10:25 am-10:40 am

3 stops34h 15m

Coolangatta Gold Coast

Sat 5/9

6:00 am-10:43 pm

3 stops30h 43m

$2,107

PhiladelphiaCoolangatta

PHL - OOL

PHLOOL

Philadelphia

Wed 6/10

6:00 am-10:40 am

3 stops38h 40m

Coolangatta Gold Coast

Tue 6/30

6:00 am-10:04 am

3 stops42h 04m

$2,274

PhiladelphiaCanberra

PHL - CBR

PHLCBR

Philadelphia

Mon 5/18

9:55 am-1:15 pm

3 stops37h 20m

Canberra

Mon 5/25

8:10 am-1:29 am

2 stops31h 19m

$2,824

PhiladelphiaCanberra

PHL - CBR

PHLCBR

Philadelphia

Sat 5/23

9:25 am-1:15 pm

2 stops37h 50m

Canberra

Wed 5/27

7:15 am-1:29 am

2 stops32h 14m

$3,113

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 $1,059. If you aren’t able to travel during the month of February, then book flights to Australia from Philadelphia during March instead. Flights to Australia in March, while not as cheap as those in February, still average around $1,122.

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 $1,480 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 22% 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.

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
United AirlinesPriceFrom $539Free CancellationRating
7.4
9,554 reviews
Search United Airlines flights
Air CanadaPriceFrom $765Free CancellationRating
7.1
10,906 reviews
Search Air Canada flights
Qantas AirwaysPriceFrom $945Free CancellationRating
7.5
1,017 reviews
Search Qantas Airways flights
Fiji AirwaysPriceFrom $954Free CancellationRating
8.1
239 reviews
Search Fiji Airways flights
American AirlinesPriceFrom $1,198Free CancellationRating
7.1
11,559 reviews
Search American Airlines flights
Air New ZealandPriceFrom $1,418Free CancellationRating
8.0
626 reviews
Search Air New Zealand flights
Qatar AirwaysPriceFrom $1,447Free CancellationRating
7.4
3,729 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
Fri 5/8
Fri 5/15

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