$904 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 28/5. 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$1,947
Brisbane
Brisbane2 stops$2,417
Perth
Perth1 stop$2,070
Sydney
Sydney2 stops$1,947
Brisbane
Brisbane2 stops$2,417
Perth
Perth1 stop$2,070

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.
 Logo
07:45 - 11:30PHL-MEL
37h 45m2 stops
 Logo
12:55 - 06:40MEL-PHL
31h 45m2 stops
$1,938
Find Deal
Tue, 20 May - Tue, 17 Jun
 Logo
17:34 - 11:45PHL-SYD
28h 11m2 stops
 Logo
13:15 - 06:50SYD-PHL
31h 35m2 stops
$1,947
Find Deal
Sat, 24 May - Sun, 1 Jun
Qatar Airways Logo
20:30 - 11:55PHL-PER
27h 25m1 stop
Qatar Airways Logo
15:20 - 09:00PER-PHL
29h 40m1 stop
$2,070Qatar Airways
Find Deal
Thu, 25 Sep - Tue, 7 Oct
Air New Zealand Logo
13:06 - 08:45PHL-SYD
29h 39m2 stops
Air New Zealand Logo
18:20 - 22:26SYD-PHL
42h 06m2 stops
$2,078Air New Zealand
Find Deal
Wed, 27 Aug - Tue, 2 Sep
Air New Zealand Logo
13:06 - 10:35PHL-SYD
31h 29m2 stops
Air New Zealand Logo
18:20 - 22:26SYD-PHL
42h 06m2 stops
$2,089Air New Zealand
Find Deal
Wed, 27 Aug - Tue, 2 Sep
Fiji Airways Logo
15:30 - 11:45PHL-SYD
30h 15m2 stops
Fiji Airways Logo
14:45 - 23:09SYD-PHL
23h 24m2 stops
$2,139Fiji Airways
Find Deal
Wed, 24 Sep - Sat, 11 Oct
Fiji Airways Logo
18:45 - 11:45PHL-SYD
27h 00m2 stops
Fiji Airways Logo
13:15 - 22:42SYD-PHL
23h 27m2 stops
$2,148Fiji Airways
Find Deal
Sat, 6 Sep - Tue, 9 Sep
Qatar Airways Logo
18:35 - 11:55PHL-PER
29h 20m2 stops
Qatar Airways Logo
15:20 - 09:00PER-PHL
29h 40m1 stop
$2,289Qatar Airways
Find Deal
Thu, 25 Sep - Tue, 7 Oct
United Airlines Logo
18:33 - 06:30PHL-BNE
21h 57m1 stop
United Airlines Logo
10:30 - 17:28BNE-PHL
20h 58m1 stop
$3,130United Airlines
Find Deal
Fri, 10 Oct - Sun, 19 Oct
United Airlines Logo
18:05 - 06:30PHL-BNE
22h 25m1 stop
United Airlines Logo
10:30 - 00:45BNE-PHL
28h 15m3 stops
$3,755United Airlines
Find Deal
Fri, 13 Jun - Fri, 20 Jun
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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 $1,806 (return) on average. On the other hand, the most expensive months are December and January, when the average cost of return tickets is $3,199 and $2,601 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

April

High season

December

Cheapest flight

$904
Best time to beat the crowds (5% less expensive on average)
Most popular time to fly (22% more expensive on average)
Flight from Philadelphia to Sydney

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.

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.

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 8696 reviews
7.3Comfort
6.6Food
7.1Entertainment
8.1Crew
7.7Boarding
Airline reviews

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

10.0 ExcellentAnonymous, Apr 2025SFO - HKG
Read more United Airlines reviews

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

A bit rush for transit. Food and entertainment are not available

Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.

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

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

Information on your arrival and departure airports

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