Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Philadelphia to Australia from $798

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 19/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Philadelphia to Australia

Cheap return flights

Air Canada Logo
15:30 - 09:35PHL-SYD
26h 05m2 stops
Air Canada Logo
11:20 - 14:47SYD-PHL
43h 27m2 stops
$1,290Air Canada
Find Deal
Tue, 11 Nov - Tue, 18 Nov
Air Canada Logo
15:30 - 09:35PHL-SYD
26h 05m2 stops
Air Canada Logo
11:20 - 14:47SYD-PHL
43h 27m2 stops
$1,291Air Canada
Find Deal
Tue, 11 Nov - Tue, 18 Nov
Logo
15:25 - 07:05PHL-BNE
25h 40m2 stops
Logo
06:10 - 22:56BNE-PHL
31h 46m3 stops
$1,568
Find Deal
Tue, 21 Oct - Tue, 10 Feb
Logo
15:20 - 07:05PHL-BNE
49h 45m2 stops
Logo
19:45 - 22:29BNE-PHL
40h 44m3 stops
$1,570
Find Deal
Tue, 26 Aug - Sat, 18 Oct
ANA Logo
06:30 - 20:15PHL-SYD
46h 45m2 stops
ANA Logo
21:45 - 14:07SYD-PHL
32h 22m2 stops
$1,873ANA
Find Deal
Mon, 20 Oct - Mon, 8 Dec
ANA Logo
06:30 - 09:25PHL-SYD
36h 55m2 stops
ANA Logo
21:45 - 00:15SYD-PHL
41h 30m2 stops
$1,907ANA
Find Deal
Sun, 28 Sep - Mon, 27 Oct
Air New Zealand Logo
06:25 - 10:30PHL-SYD
36h 05m2 stops
Air New Zealand Logo
11:45 - 11:36SYD-PHL
39h 51m2 stops
$1,964Air New Zealand
Find Deal
Wed, 26 Nov - Mon, 15 Dec
Air New Zealand Logo
17:58 - 10:55PHL-MEL
48h 57m2 stops
Air New Zealand Logo
16:50 - 05:18MEL-PHL
52h 28m2 stops
$2,072Air New Zealand
Find Deal
Sat, 8 Nov - Sat, 22 Nov
United Airlines Logo
18:25 - 09:30PHL-ADL
23h 35m1 stop
United Airlines Logo
14:55 - 13:51ADL-PHL
38h 26m2 stops
$3,079United Airlines
Find Deal
Thu, 25 Dec - Mon, 12 Jan
United Airlines Logo
18:25 - 09:30PHL-ADL
23h 35m1 stop
United Airlines Logo
14:55 - 17:28ADL-PHL
42h 03m1 stop
$3,101United Airlines
Find Deal
Thu, 25 Dec - Wed, 7 Jan

Air Canada flights from Philadelphia to Australia

Our best Air Canada deals on Philadelphia to Australia flight tickets
Air Canada
11 Nov
PHL15:30Philadelphia
26h 05m
2 stops
SYD09:35Sydney Kingsford Smith
18 Nov
SYD11:20Sydney Kingsford Smith
43h 27m
2 stops
PHL14:47Philadelphia
$1,290
Find similar
Air Canada
11 Nov
PHL15:30Philadelphia
26h 05m
2 stops
SYD09:35Sydney Kingsford Smith
18 Nov
SYD11:20Sydney Kingsford Smith
43h 27m
2 stops
PHL14:47Philadelphia
$1,291
Find similar
Air Canada
11 Nov
PHL15:30Philadelphia
26h 05m
2 stops
SYD09:35Sydney Kingsford Smith
18 Nov
SYD11:20Sydney Kingsford Smith
43h 27m
3 stops
PHL14:47Philadelphia
$1,301
Find similar

Fiji Airways flights from Philadelphia to Australia

Our best Fiji Airways deals on Philadelphia to Australia flight tickets
Fiji Airways
26 Aug
PHL18:45Philadelphia
25h 40m
2 stops
BNE10:25Brisbane
18 Oct
BNE23:50Brisbane
39h 09m
2 stops
PHL00:59Philadelphia
$2,108
Find similar
Fiji Airways
20 Sept
PHL15:40Philadelphia
28h 55m
2 stops
BNE10:35Brisbane
27 Sept
BNE23:50Brisbane
38h 28m
2 stops
PHL00:18Philadelphia
$2,182
Find similar
Fiji Airways
23 Aug
PHL18:50Philadelphia
25h 35m
2 stops
BNE10:25Brisbane
30 Sept
BNE11:35Brisbane
26h 43m
2 stops
PHL00:18Philadelphia
$2,335
Find similar

momondo Fare Finder

 
Customise 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 78,305 searches. Data last updated 6 August 2025.
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

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 11/11

15:30-09:35

2 stops26h 05m

Sydney Kingsford Smith

Tue 18/11

11:20-14:47

2 stops43h 27m

$1,290

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 11/11

15:30-09:35

2 stops26h 05m

Sydney Kingsford Smith

Tue 18/11

11:20-14:47

2 stops43h 27m

$1,291

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Tue 21/10

15:25-07:05

2 stops25h 40m

Brisbane

Tue 10/2

06:10-22:56

3 stops31h 46m

$1,568

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Tue 26/8

15:20-07:05

2 stops49h 45m

Brisbane

Sat 18/10

19:45-22:29

3 stops40h 44m

$1,570

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 20/10

06:30-20:15

2 stops46h 45m

Sydney Kingsford Smith

Mon 8/12

21:45-14:07

2 stops32h 22m

$1,873

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sun 28/9

06:30-09:25

2 stops36h 55m

Sydney Kingsford Smith

Mon 27/10

21:45-00:15

2 stops41h 30m

$1,907

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Wed 26/11

06:25-10:30

2 stops36h 05m

Sydney Kingsford Smith

Mon 15/12

11:45-11:36

2 stops39h 51m

$1,964

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Sat 8/11

17:58-10:55

2 stops48h 57m

Melbourne

Sat 22/11

16:50-05:18

2 stops52h 28m

$2,072

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Thu 25/12

18:25-09:30

1 stop23h 35m

Adelaide

Mon 12/1

14:55-13:51

2 stops38h 26m

$3,079

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Thu 25/12

18:25-09:30

1 stop23h 35m

Adelaide

Wed 7/1

14:55-17:28

1 stop42h 03m

$3,101

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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?

In general, February is the cheapest month to fly from Philadelphia to Australia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,786. If you don’t want to visit Australia in February, then you should wait until September to fly from Philadelphia, when ticket prices are also cheap, with an average price of $1,887.

What is the cheapest day to depart on your flight to Australia?

On average, the least expensive day to fly to Australia from Philadelphia is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $2,092. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Philadelphia to Australia on a Wednesday will generally be more expensive and average around $3,868. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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 $2,303 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Philadelphia for as low as $1,652 on momondo.

Can stopping save me money on Philadelphia to Australia flights?

You could potentially save up to 59% 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

Best price found

$798

Fastest flight time

23h 22m

Direct flights

None

Airports in Australia

7 airports
The best one-way flight to Australia from Philadelphia in the past 72 hours is $798. The best return flight deal from Philadelphia to Australia found on momondo in the last 72 hours is $1,290.
The fastest flight from Philadelphia to Australia takes 23h 22m
There are no direct flights from Philadelphia to Australia. Popular non-direct routes for this connection are Philadelphia Airport - Sydney Kingsford Smith Airport, Philadelphia Airport - Melbourne Airport and Philadelphia Airport - Perth Airport.
There are 7 airports near Australia: Melbourne Avalon (AVV), Maroochydore Sunshine Coast (MCY), Melbourne (MEL), Brisbane (BNE), Adelaide (ADL), Perth (PER), Sydney Kingsford Smith (SYD)
Search flight deals

  • When did momondo last update prices for flights from Philadelphia Airport to Australia?

    Prices for flights from Philadelphia Airport to Australia refresh 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 a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Philadelphia Airport to Australia.

  • What documentation or ID do you need to fly to Australia?

    The required travel and health documents for your Australia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Australia. We recommend that you seek guidance from your airline or a reliable 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 $1,329Free cancellationRating
7.4
8,916 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Australia?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Philadelphia to Australia . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Philadelphia to Australia with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Philadelphia to Australia flights to just show those with flexible booking policies.

How can momondo help me find flights from Philadelphia to Australia?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Philadelphia to Australia.

I’m not ready to book a flight from Philadelphia to Australia right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Australia from Philadelphia. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Australia trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 11/8
Mon 18/8
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia