What is the cheapest airline that flies from Philadelphia to Australia?

United Airlines, Fiji Airways, and Qantas Airways are the most popular carriers operating from Philadelphia to Australia

What airlines fly to Australia?

United Airlines, Qantas Airways and Delta are the top three most popular airlines that fly to Australia from Philadelphia according to our data. United Airlines is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Australia. Keep in mind that there are 13 different airlines that fly to Australia on a routine basis, so you have a few additional options to choose from.

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?

As of October 2025, there are 8 operators available to choose from 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.

$440 Cheap Flights from Philadelphia to Australia in 2025/26

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Cheap round-trip flights

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8:15 am - 7:00 amPHL-SYD

30h 45m1 stop

2:00 pm - 7:41 pmSYD-PHL

21h 41m1 stop

$860United Airlines

Find Deal

Sun, Nov 30 - Sun, Dec 7

6:25 pm - 9:15 amPHL-SYD

22h 50m1 stop

11:50 am - 10:59 pmSYD-PHL

27h 09m1 stop

$863United Airlines

Find Deal

Mon, Dec 29 - Thu, Jan 15

3:55 pm - 9:00 amPHL-SYD

25h 05m1 stop

6:20 am - 7:04 pmSYD-PHL

28h 44m2 stops

$1,280Qantas Airways

Find Deal

Tue, Nov 11 - Tue, Nov 18

4:03 pm - 8:50 pmPHL-SYD

36h 47m2 stops

11:20 am - 8:16 pmSYD-PHL

24h 56m1 stop

$1,285Qantas Airways

Find Deal

Wed, Dec 3 - Wed, Jan 14

10:27 am - 9:00 amPHL-SYD

30h 33m1 stop

11:20 am - 11:46 pmSYD-PHL

28h 26m1 stop

$1,344American Airlines

Find Deal

Mon, Nov 10 - Sun, Nov 16

3:36 pm - 9:00 amPHL-SYD

25h 24m2 stops

11:20 am - 8:03 pmSYD-PHL

24h 43m1 stop

$1,348American Airlines

Find Deal

Tue, Nov 11 - Tue, Nov 18

5:18 pm - 1:05 pmPHL-CBR

27h 47m2 stops

2:10 pm - 9:54 pmCBR-PHL

23h 44m2 stops

$1,351Fiji Airways

Find Deal

Thu, Nov 13 - Thu, Nov 20

3:30 pm - 6:55 amPHL-SYD

47h 25m2 stops

11:20 am - 2:47 pmSYD-PHL

43h 27m3 stops

$1,416Air Canada

Find Deal

Mon, Dec 29 - Thu, Jan 15

5:40 pm - 12:45 pmPHL-MEL

27h 05m2 stops

2:30 pm - 11:49 pmMEL-PHL

24h 19m2 stops

$1,449Fiji Airways

Find Deal

Sat, Feb 28 - Mon, Mar 16

3:30 pm - 6:55 amPHL-SYD

47h 25m2 stops

11:20 am - 2:47 pmSYD-PHL

43h 27m3 stops

$1,501Air Canada

Find Deal

Mon, Dec 29 - Thu, Jan 15

United Airlines flights from Philadelphia to Australia

Our best United Airlines deals on Philadelphia to Australia flight tickets

United Airlines

Nov 30

PHL8:15 amPhiladelphia

30h 45m

1 stop

SYD7:00 amSydney Kingsford Smith

Dec 7

SYD2:00 pmSydney Kingsford Smith

21h 41m

1 stop

PHL7:41 pmPhiladelphia

$860

Find similar

United Airlines

Dec 29

PHL6:25 pmPhiladelphia

22h 50m

1 stop

SYD9:15 amSydney Kingsford Smith

Jan 15

SYD11:50 amSydney Kingsford Smith

27h 09m

1 stop

PHL10:59 pmPhiladelphia

$863

Find similar

United Airlines

Nov 30

PHL8:15 amPhiladelphia

30h 45m

1 stop

SYD7:00 amSydney Kingsford Smith

Dec 7

SYD11:20 amSydney Kingsford Smith

28h 02m

2 stops

PHL11:22 pmPhiladelphia

$865

Find similar

Air Canada flights from Philadelphia to Australia

Our best Air Canada deals on Philadelphia to Australia flight tickets

Air Canada

Dec 29

PHL3:30 pmPhiladelphia

47h 25m

2 stops

SYD6:55 amSydney Kingsford Smith

Jan 15

SYD11:20 amSydney Kingsford Smith

43h 27m

3 stops

PHL2:47 pmPhiladelphia

$1,416

Find similar

Air Canada

Dec 29

PHL3:30 pmPhiladelphia

47h 25m

2 stops

SYD6:55 amSydney Kingsford Smith

Jan 15

SYD11:20 amSydney Kingsford Smith

43h 27m

3 stops

PHL2:47 pmPhiladelphia

$1,501

Find similar

Air Canada

Dec 29

PHL3:30 pmPhiladelphia

47h 25m

2 stops

SYD6:55 amSydney Kingsford Smith

Jan 15

SYD11:20 amSydney Kingsford Smith

43h 27m

3 stops

PHL2:47 pmPhiladelphia

$1,502

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sun 11/30

8:15 am-7:00 am

1 stop30h 45m

Sydney Kingsford Smith

Sun 12/7

2:00 pm-7:41 pm

1 stop21h 41m

$860

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 12/29

6:25 pm-9:15 am

1 stop22h 50m

Sydney Kingsford Smith

Thu 1/15

11:50 am-10:59 pm

1 stop27h 09m

$863

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 11/11

3:55 pm-9:00 am

1 stop25h 05m

Sydney Kingsford Smith

Tue 11/18

6:20 am-7:04 pm

2 stops28h 44m

$1,280

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Wed 12/3

4:03 pm-8:50 pm

2 stops36h 47m

Sydney Kingsford Smith

Wed 1/14

11:20 am-8:16 pm

1 stop24h 56m

$1,285

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 11/10

10:27 am-9:00 am

1 stop30h 33m

Sydney Kingsford Smith

Sun 11/16

11:20 am-11:46 pm

1 stop28h 26m

$1,344

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 11/11

3:36 pm-9:00 am

2 stops25h 24m

Sydney Kingsford Smith

Tue 11/18

11:20 am-8:03 pm

1 stop24h 43m

$1,348

PhiladelphiaCanberra

PHL - CBR

PHLCBR

Philadelphia

Thu 11/13

5:18 pm-1:05 pm

2 stops27h 47m

Canberra

Thu 11/20

2:10 pm-9:54 pm

2 stops23h 44m

$1,351

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 12/29

3:30 pm-6:55 am

2 stops47h 25m

Sydney Kingsford Smith

Thu 1/15

11:20 am-2:47 pm

3 stops43h 27m

$1,416

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Sat 2/28

5:40 pm-12:45 pm

2 stops27h 05m

Melbourne

Mon 3/16

2:30 pm-11:49 pm

2 stops24h 19m

$1,449

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 12/29

3:30 pm-6:55 am

2 stops47h 25m

Sydney Kingsford Smith

Thu 1/15

11:20 am-2:47 pm

3 stops43h 27m

$1,501

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Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest month to fly to Australia?

The month of September is, on average, the cheapest month to fly to Australia from Philadelphia, with most prices found around $1,127. If you aren’t able to travel during the month of September, then book flights to Australia from Philadelphia during February instead. Flights to Australia in February, while not as cheap as those in September, still average around $1,254.

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

The cheapest day to depart from Philadelphia to Australia is on a Sunday. Travelers who choose to depart for Australia on a Sunday will often find tickets for as low as $1,373. On the other hand, Thursday is the most expensive day to depart from Philadelphia because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,659.

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

Flying to Australia from Philadelphia in the morning is the least expensive time of day to depart. momondo users have found prices as low as $1,449 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $2,063 on average. Flights to Australia from Philadelphia in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $1,526 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 $1,149 on momondo.

Can stopping save me money on Philadelphia to Australia flights?

You could potentially save up to 24% 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

Direct flights	None

There are no direct flights from Philadelphia to Australia. There are no popular flight routes from Philadelphia to Australia.

Search flight deals

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?
As of October 2025, there are 8 operators available to choose from 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
Delta	PriceFrom $717	Free Cancellation	Rating 7.9 7,982 reviews	Search Delta flights
United Airlines	PriceFrom $860	Free Cancellation	Rating 7.4 8,982 reviews	Search United Airlines flights
Air Canada	PriceFrom $941	Free Cancellation	Rating 7.1 10,307 reviews	Search Air Canada flights
Fiji Airways	PriceFrom $945	Free Cancellation	Rating 8.0 205 reviews	Search Fiji Airways flights
American Airlines	PriceFrom $1,147	Free Cancellation	Rating 7.2 11,040 reviews	Search American Airlines flights
Air New Zealand	PriceFrom $1,220	Free Cancellation	Rating 8.0 515 reviews	Search Air New Zealand flights
Qatar Airways	PriceFrom $1,296	Free Cancellation	Rating 7.4 3,652 reviews	Search Qatar Airways flights
Qantas Airways	PriceFrom $1,357	Free Cancellation	Rating 7.5 918 reviews	Search Qantas 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.

An easier way to manage your Australia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Sat 11/22

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Find better results for your trip to Australia

Popular cities in Australia

Flights to Sydneyfrom $416

Flights to Melbournefrom $763

Flights to Brisbanefrom $814

Flights to Perthfrom $897

Flights to Adelaidefrom $892

Flights to Cairnsfrom $1,038

Flights to Coolangattafrom $1,116

Flights to Hobartfrom $1,187

Flights to Canberrafrom $977

Flights to Darwinfrom $1,067

Flights to Maroochydorefrom $1,450

Flights to Launceston, Tasmaniafrom $1,605

Cheap flights from Philadelphia to Australia from $440

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 11/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

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Price Alerts

Find the cheapest flights from Philadelphia to Australia

Cheap round-trip flights

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United Airlines flights from Philadelphia to Australia

Our best United Airlines deals on Philadelphia to Australia flight tickets

Air Canada flights from Philadelphia to Australia

Our best Air Canada deals on Philadelphia to Australia flight tickets

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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?

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

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

How far in advance should I book a flight to Australia?

Can stopping save me money on Philadelphia to Australia flights?

You could potentially save up to 24% on your flight if you consider stops on a Philadelphia to Australia flight.

What is the cheapest airline that flies from Philadelphia to Australia?

United Airlines, Fiji Airways, and Qantas Airways are the most popular carriers operating from Philadelphia to Australia

What airlines fly to Australia?

Cheap Philadelphia to Australia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Australia

Direct flights

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

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?

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

Best airlines flying from Philadelphia to Australia

Compare and see reviews for airlines that fly from Philadelphia to Australia with momondo

Why use momondo?

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

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

How can momondo help me find flights 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?

An easier way to manage your Australia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Australia

Popular cities in Australia

Popular flights according to clicks in the last 7 days on momondo