$886 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 16/5. 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.
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Best Australia Flight Deals from Philadelphia

Cheapest return prices found by our users on KAYAK in the last 72 hours

Sydney
Sydney2 stops$1,894
Brisbane
Brisbane3 stops$2,197
Perth
Perth1 stop$2,309
Cairns
Cairns2 stops$3,269
Canberra
Canberra2 stops$3,697

Cheap Flight Deals from Philadelphia to Australia (PHL-AU0)

 
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.

Recent return flight deals from Philadelphia to Australia

Recommended return flight deals departing in the coming months from the most popular airlines that fly from Philadelphia to Australia.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
 Logo
17:34 - 22:10PHL-SYD
38h 36m2 stops
 Logo
13:15 - 06:50SYD-PHL
31h 35m2 stops
$1,894
Find Deal
Wed, 28 May - Wed, 4 Jun
 Logo
07:45 - 11:45PHL-SYD
38h 00m2 stops
 Logo
13:15 - 06:30SYD-PHL
31h 15m2 stops
$1,916
Find Deal
Wed, 21 May - Wed, 28 May
Air New Zealand Logo
13:06 - 10:35PHL-SYD
31h 29m2 stops
Air New Zealand Logo
18:20 - 22:26SYD-PHL
42h 06m2 stops
$2,078Air New Zealand
Find Deal
Wed, 27 Aug - Tue, 2 Sep
Air New Zealand Logo
13:06 - 08:45PHL-SYD
29h 39m2 stops
Air New Zealand Logo
18:20 - 22:26SYD-PHL
42h 06m2 stops
$2,081Air New Zealand
Find Deal
Wed, 27 Aug - Tue, 2 Sep
Qatar Airways Logo
20:30 - 16:50PHL-MEL
30h 20m1 stop
Qatar Airways Logo
22:45 - 09:00MEL-PHL
48h 15m1 stop
$2,197Qatar Airways
Find Deal
Wed, 10 Sep - Sun, 21 Sep
Fiji Airways Logo
18:50 - 11:45PHL-SYD
26h 55m2 stops
Fiji Airways Logo
13:45 - 22:56SYD-PHL
23h 11m2 stops
$2,217Fiji Airways
Find Deal
Mon, 11 Aug - Sat, 23 Aug
Fiji Airways Logo
18:50 - 22:10PHL-SYD
37h 20m2 stops
Fiji Airways Logo
06:00 - 22:56SYD-PHL
30h 56m2 stops
$2,225Fiji Airways
Find Deal
Tue, 26 Aug - Tue, 2 Sep
Qatar Airways Logo
20:45 - 18:40PHL-PER
33h 55m1 stop
Qatar Airways Logo
22:45 - 20:55PER-PHL
34h 10m2 stops
$2,309Qatar Airways
Find Deal
Tue, 6 May - Tue, 20 May
United Airlines Logo
18:28 - 08:15PHL-MEL
23h 47m1 stop
United Airlines Logo
09:30 - 00:14MEL-PHL
28h 44m2 stops
$2,814United Airlines
Find Deal
Mon, 11 Aug - Wed, 20 Aug
United Airlines Logo
10:10 - 08:15PHL-MEL
32h 05m2 stops
United Airlines Logo
09:30 - 18:55MEL-PHL
23h 25m2 stops
$2,820United Airlines
Find Deal
Tue, 12 Aug - Wed, 20 Aug

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 time of day to fly to Australia?

The average price for all round-trip flights from Philadelphia to Australia depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Australia is generally in the evening, when retur flights cost $1,714 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 $1,714.

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 $1,808 (return) on average. On the other hand, the most expensive months are December and January, when the average cost of return tickets is $3,201 and $2,603 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 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low season

September

High season

December

Cheapest flight

$886
Best time to beat the crowds (7% less expensive on average)
Most popular time to fly (22% 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.

See more FAQs

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.
See more tips

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 8683 reviews
8.1Crew
6.6Food
7.7Boarding
7.3Comfort
7.1Entertainment
Airline reviews

Multiple delays and not straight answer from the United team

2.0 MediocreAlex, Apr 2025FLL - EWR
Read more United Airlines reviews

Multiple delays and not straight answer from the United team

For economy, it was very good. Staff was great, they even let some of us change seats for more leg room... Put an empty seat between us which was fantastic for a 12hr flight. Onboard entertainment was excellent, I think over 200 choices of movies/tv/etc The bad was the barely/nonfunctional wifi that cost either $16.99 or 1700 miles (full flight). It was atrocious... Definitely the worst of the last 3 long haul major airlines I was on the last few months.

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

leg space better than expected. two washrooms for one plane isn't enough.

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

Information on your arrival and departure airports

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