$769 Find Cheap Flights from Philadelphia to Australia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Philadelphia to Australia departing on 3/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Philadelphia to Australia

Cheapest return prices found by our users on KAYAK in the last 72 hours
Sydney
Sydney2 stops$1,464
Brisbane
Brisbane2 stops$1,458
Perth
Perth3 stops$1,903
Cairns
Cairns2 stops$2,078
Canberra
Canberra2 stops$1,943
Sydney
Sydney2 stops$1,464
Brisbane
Brisbane2 stops$1,458
Perth
Perth3 stops$1,903
Cairns
Cairns2 stops$2,078
Canberra
Canberra2 stops$1,943

Book Cheap Philadelphia to Australia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Philadelphia to Australia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Philadelphia to Australia

Tue, 24 Mar - Fri, 10 Apr
Qantas Airways Logo
17:17 - 17:10
PHL
-
BNE
33h 53m2 stops
Qantas Airways Logo
20:35 - 07:10
BNE
-
PHL
24h 35m1 stop
$1,458Qantas Airways
Sat, 24 Jan - Mon, 9 Feb
Qantas Airways Logo
14:30 - 09:10
PHL
-
SYD
50h 40m2 stops
Qantas Airways Logo
11:20 - 20:16
SYD
-
PHL
24h 56m1 stop
$1,464Qantas Airways
Sat, 24 Jan - Mon, 9 Feb
Qantas Airways Logo
14:30 - 09:10
PHL
-
SYD
50h 40m2 stops
Qantas Airways Logo
11:20 - 23:48
SYD
-
PHL
28h 28m1 stop
$1,466Qantas Airways
Tue, 31 Mar - Mon, 20 Apr
Multiple Airlines Logo
15:42 - 06:25
PHL
-
SYD
23h 43m1 stop
Multiple Airlines Logo
09:10 - 17:55
SYD
-
PHL
22h 45m1 stop
$1,578Multiple Airlines
Wed, 28 Jan - Wed, 4 Feb
Delta Logo
11:27 - 08:30
PHL
-
SYD
29h 03m2 stops
Delta Logo
10:40 - 20:40
SYD
-
PHL
26h 00m2 stops
$1,607Delta
Sun, 15 Feb - Sat, 21 Feb
Multiple Airlines Logo
15:30 - 08:45
PHL
-
BNE
26h 15m2 stops
Multiple Airlines Logo
19:50 - 22:46
BNE
-
PHL
41h 56m3 stops
$1,769Multiple Airlines
Tue, 24 Mar - Fri, 10 Apr
Air Canada Logo
15:30 - 07:45
PHL
-
BNE
26h 15m2 stops
Air Canada Logo
10:00 - 14:46
BNE
-
PHL
42h 46m2 stops
$1,801Air Canada
Tue, 24 Mar - Fri, 10 Apr
Air Canada Logo
07:50 - 11:30
PHL
-
BNE
37h 40m3 stops
Air Canada Logo
10:00 - 14:46
BNE
-
PHL
42h 46m2 stops
$1,840Air Canada
Sat, 17 Jan - Tue, 27 Jan
United Airlines Logo
19:45 - 10:00
PHL
-
MEL
46h 15m2 stops
United Airlines Logo
11:30 - 21:52
MEL
-
PHL
26h 22m2 stops
$2,048United Airlines
Thu, 19 Feb - Mon, 23 Feb
United Airlines Logo
08:35 - 13:20
PHL
-
OOL
37h 45m2 stops
United Airlines Logo
07:20 - 23:32
OOL
-
PHL
31h 12m3 stops
$4,361United Airlines
Booking Insights

KAYAK's insights & trends for Philadelphia to Australia flights

Get data-powered insights and trends into flights from Philadelphia to Australia to help you find the cheapest flights, the best time to fly, and much more.

What is the cheapest month to fly from Philadelphia to Australia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Philadelphia to Australia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Philadelphia to Australia is February, when tickets cost $1,630 (return) on average. On the other hand, the most expensive months are December and January, when the average cost of return tickets is $2,902 and $2,531 respectively.

What’s the cheapest day of the week to fly from Philadelphia to Australia?

The average price of all round-trip flights from Philadelphia to Australia clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Australia on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Wednesday is the most expensive day to fly from Philadelphia to Australia. For your return ticket, we recommend flying on a Thursday and avoiding Tuesdays for the best deals.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Philadelphia to Australia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on the flight from Philadelphia to Australia, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Find deals

Good to know

Low seasonApril
Cheapest flight$769
Best time to beat the crowds (7% less expensive on average)
Most popular time to fly (12% more expensive on average)
Flight from Philadelphia to Brisbane

FAQs - booking Australia flights

  • How is parking at Philadelphia International Airport?

    If you need to leave your car at the airport while flying out of Philadelphia International Airport, there are many parking garages available at your disposal. Garage C and D, which provides hourly parking, are available for your use if you want to park short-term. The Economy and Valet parking lots located in terminal F are your options for long-term parking. Additionally, each terminal has a shuttle service that picks up and drops off passengers.

  • How can I fly from Philadelphia to Sydney?

    Onestop option flights from Philadelphia to Sydney are provided by Delta, United Airlines, and Japan Airlines. If you want to save money, you might think about looking for a connecting flight with multiple layovers. Both Los Angeles International Airport and Dallas Fort Worth International Airport frequently experience layovers. Take advantage of these chances to buy a fast present or souvenir.

  • Which airlines should I fly with from Philadelphia to Sydney?

    You typically get what you pay for when traveling by air from PHL to SYD. However, three of the five highest-ranked airlines on KAYAK are ANA, Japan Airlines, and Air New Zealand, all of which provide exceptional services to customers. Air New Zealand allows customers to make last-minute modifications and pay later.

  • What activities and amenities do the departure and arrival airports offer for passengers to spend time?

    While you wait to catch your flight or airport shuttle transfer service, you can use numerous outstanding amenities and services at the departure and arrival airports to spend time. You can visit the onsite spas to treat yourself to a full body massage, nail services, and a facial. If you want, you can go to one of the numerous dining options offering a variety of cuisines and get something to eat if you're hungry.

  • How does KAYAK find such low prices on flights from Philadelphia to Australia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Philadelphia to Australia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Philadelphia to Australia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Philadelphia to Australia is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Philadelphia to Australia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Philadelphia to Australia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Philadelphia to Australia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Philadelphia to Australia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Australia?

    The cheapest time of day to fly to Australia is generally in the evening, when retur flights cost $2,579 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to Australia is generally in the evening, which is peak travel time and where the average cost of a ticket is $2,579.

Top tips for finding cheap flights to Australia

  • When you arrive in Australia, you will land at Sydney Kingsford Smith Airport (SYD, which has locations where you can meet individuals who are picking you up from the airport, such as family and friends. Additionally, idling adjacent to the terminals is discouraged by the airport.
  • PHL Care, a network of places, programs, and services that guarantees accessibility for site visitors with disabilities, is a source of pride for the departure airport. Each PHL terminal offers restrooms that are wheelchair accessible and have changing tables. Visitors who have registered for the program are granted free parking in the accessibility car parks at Philadelphia International Airport (PHL). For further details about the program, get in touch with the airport.
  • Excellent inflight amenities are provided on flights between PHL and SYD, including entertainment, refreshments, snacks, plush seats, and enough legroom. You can obtain blankets if you want to travel at night.
  • There are notable lounges like the American Express Lounge at both the airports of departure and arrival. This lounge offers first-class services to passengers. Contact your airline before booking the services to know what you should expect.
  • The easiest way to get about if you're running late to catch your flight at PHL is to take a taxi. A taxi from the city center takes approximately 14min to PHL as compared to buses which take 39min to cover the same distance.

Reviews of the top airline flying from Philadelphia to Australia

 
Need help choosing which airline to fly with from Philadelphia to Australia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9095 reviews
7.3Comfort
8.1Crew
7.7Boarding
6.6Food
7.1Entertainment
Airline reviews

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

10.0 ExcellentRoger, Dec 2025
CAE - ORD
Read more United Airlines reviews

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

United have really come back. Airport and boarding process is clear and good, app and information also very good

They charged a fee for 1st bag checked. Others in same party were free.

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

The movies offered were great. Staff were very pleasant and very efficient.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

Everything you need to know for your flight from Philadelphia to Australia

Information on your arrival and departure airports

Philadelphia (PHL)