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PHL - SYD

Find cheap flights from Philadelphia to Sydney from $1,319

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 Sydney 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.
1 adult
Wed 5/6
Wed 12/6

Search hundreds of travel sites at once for deals on flights to Sydney

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Sydney, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Sydney, as well as popular online travel agencies
In the last 7 days, travellers have searched 42,830,901 times on KAYAK, and here's why:

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Cheap flight deals from Philadelphia to Sydney (PHL-SYD)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Philadelphia to Sydney 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 and deals for you by selecting your travel dates.
Choose your dates
18:18 - 08:45PHL-SYD
24h 27m2 stops
11:50 - 22:30SYD-PHL
24h 40m2 stops
$2,060Air New Zealand
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Mon, 26 Aug - Mon, 9 Sep
18:15 - 08:45PHL-SYD
24h 30m2 stops
08:45 - 08:29SYD-PHL
37h 44m2 stops
$2,072Air New Zealand
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Tue, 6 Aug - Tue, 13 Aug
18:18 - 08:45PHL-SYD
24h 27m2 stops
11:50 - 10:35SYD-PHL
36h 45m3 stops
$2,218
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Mon, 26 Aug - Mon, 9 Sep
10:05 - 07:20PHL-SYD
31h 15m2 stops
09:20 - 15:29SYD-PHL
44h 09m2 stops
$2,257Air Canada
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Mon, 5 Aug - Tue, 13 Aug
10:05 - 07:20PHL-SYD
31h 15m2 stops
09:20 - 15:29SYD-PHL
44h 09m3 stops
$2,264Air Canada
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Mon, 5 Aug - Tue, 13 Aug
18:44 - 19:45PHL-SYD
35h 01m2 stops
17:35 - 19:37SYD-PHL
40h 02m1 stop
$2,348
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Tue, 4 Jun - Sun, 9 Jun
18:38 - 07:00PHL-SYD
22h 22m1 stop
10:20 - 17:32SYD-PHL
21h 12m1 stop
$2,369United Airlines
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Mon, 26 Aug - Mon, 9 Sep
12:55 - 06:55PHL-SYD
28h 00m2 stops
11:20 - 17:30SYD-PHL
21h 10m1 stop
$2,444United Airlines
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Tue, 1 Oct - Fri, 18 Oct
17:38 - 07:05PHL-SYD
23h 27m1 stop
09:15 - 22:59SYD-PHL
27h 44m1 stop
$2,567Qantas Airways
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Tue, 6 Aug - Tue, 13 Aug
18:49 - 07:05PHL-SYD
22h 16m1 stop
09:15 - 22:59SYD-PHL
27h 44m1 stop
$2,596Qantas Airways
Find Deal
Mon, 5 Aug - Tue, 13 Aug

Flights from Philadelphia to Sydney - Travel Insights & Trends

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

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

The average price of all flights from Philadelphia to Sydney clicked on KAYAK for each day over the last 12 months.
When flying from Philadelphia to Sydney, you should consider leaving on a Wednesday and avoid Tuesdays if you are looking for the best rates. For your return to Philadelphia, you’ll find the best rates on Thursdays and the most expensive ones on Wednesdays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Philadelphia to Sydney, 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 Sydney is February, where tickets cost $2,009 on average. On the other hand, the most expensive months are July and December, where the average cost of tickets is $3,549 and $3,376 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Philadelphia to Sydney, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Philadelphia to Sydney, you should book around 2 days before departure. For the absolute cheapest price, our data suggests you should book 27 days before departure.

Which airlines provide the cheapest flights from Philadelphia to Sydney?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting Philadelphia to Sydney were found on Air New Zealand ($2,060) and Air Canada ($2,257). United Airlines proposed the cheapest one-way flight at $1,440.

Good to know

Low season

April

High season

December

Cheapest flight

$1,319
Best time to beat the crowds (16% less expensive on average)
Most popular time to fly (29% more expensive on average)
Flight from Philadelphia to Sydney

When to book flights from Philadelphia to Sydney

Are your dates flexible? Find out the best times to travel from Philadelphia to Sydney based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Philadelphia to Sydney

  • Can I pre-select my seat when flying Qantas Airways from Philadelphia to Sydney?

    Yes, when flying Qantas Airways from Philadelphia to Sydney, you can pre-select your seat. Qantas allows passengers to choose their seats in advance during the booking process or at a later time through their website or mobile app.

  • How does Qantas Airways support sustainable travel on flights from Philadelphia to Sydney?

    Qantas Airways supports sustainable travel on flights from Philadelphia to Sydney by implementing fuel-efficient aircraft, promoting carbon offset programs for passengers, and investing in renewable energy projects. They also prioritize waste reduction and recycling efforts to minimize their environmental impact.

  • Can I rent a car after my flight from Philadelphia to Sydney?

    Yes, you can rent a car after your flight from Philadelphia to Sydney. Several rental companies operate in Sydney, including major international brands such as Hertz, Avis, Budget, Enterprise, and Europcar. These companies offer a wide range of vehicles to choose from, ensuring you can find a car that suits your needs and preferences. Simply check with the respective rental company for availability, rates, and booking details.

  • What are the in-flight entertainment amenities available on American Airlines flights from Philadelphia to Sydney?

    American Airlines offers a range of in-flight entertainment amenities on flights from Philadelphia to Sydney. Passengers can enjoy a variety of movies, TV shows, music, and games on personal seatback screens, along with free internet connectivity for browsing and streaming content.

  • What is the cheapest flight from Philadelphia to Sydney?

    In the last 3 days, the lowest price for a flight from Philadelphia to Sydney was $872 for a one-way ticket and $1,362 for a return.

  • Which airports will I be using when flying from Philadelphia to Sydney?

    On your way to Sydney, you’ll fly out from Philadelphia. You’ll be landing at Sydney Kingsford Smith.

  • Which aircraft models fly most regularly from Philadelphia to Sydney?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Philadelphia to Sydney?

    Star Alliance, and oneworld are the airline alliances operating flights between Philadelphia and Sydney, with oneworld being the most commonly used for this route.

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

    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 Sydney.

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

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

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

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

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

    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 to Sydney from Philadelphia 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 a cheap flight from Philadelphia to Sydney

  • Upon arrival at Sydney Airport, you can use various public transportation means to reach your destination. Options include the Airport Link train, which provides a direct connection to the city center and surrounding suburbs. Additionally, buses operated by Sydney Buses and private shuttle services are available.
  • U.S. citizens traveling from Philadelphia to Sydney require a valid passport with at least six months of validity beyond the intended stay. Additionally, they must obtain an Electronic Travel Authority (ETA) or a Visitor Visa (subclass 600) prior to departure. The ETA allows for stays up to 90 days, while the Visitor Visa permits longer stays.
  • You can change your seat on Delta for flights from Philadelphia to Sydney. Delta provides various seat selection options, including the ability to choose your seat during the booking process or later through its website or mobile app. Additionally, Delta offers upgrade options such as Delta Comfort+ and Delta One for enhanced comfort and amenities during your journey. Contact Delta directly or manage your booking online to explore seat change and upgrade possibilities.
  • Delta Airlines offers a range of kid-friendly options on flights from Philadelphia to Sydney. These include in-flight entertainment with a variety of movies, TV shows, and games suitable for children, as well as kid-friendly meals and special amenities to make the journey more enjoyable for young travelers.
  • Delta Airlines has specific pet restrictions for flights from Philadelphia to Sydney. Only small dogs, cats, and household birds are allowed as cabin pets. The maximum weight for cabin pets is 20 lb. Larger dogs and other animals must be transported as cargo.
See more tips

Top airline flying from Philadelphia to Sydney

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to Sydney. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Philadelphia to Sydney? 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.
7.6
Qantas AirwaysOverall score based on 974 reviews
8.3Crew
7.5Comfort
7.1Food
7.8Boarding
7.5Entertainment
Airline reviews

Initial flight was cancelled so moved to an alternative flight. As a result, stuck in a middle seat. Flight then place in holding pattern prior to landing resulting in a very late trip home.

2.0 MediocreSimon, May 2024MEL - SYD
Read more about Qantas Airways reviews

Initial flight was cancelled so moved to an alternative flight. As a result, stuck in a middle seat. Flight then place in holding pattern prior to landing resulting in a very late trip home.

There was nothing I didn’t like, prices a little lower would help

Flight delay was informed at the last minute. Food quality is not up to Qantas standard I was unable to book an online boarding pass on any of my 6 flights.

Rescheduled after ticket purchased and issued, not 2 or 3 times and not a fourth but by 5 times, by Qantas, that's right, 5 changes! Forcing an overnight stay in Chile and need for visa. Qantas can no longer provide basic services as a national or international service provider. Professionalism is extinct and the provider needs to be mentored and educated in perfecting who to operate as an airline. Qantas is the spirit of Australian dissatisfaction.

Amazing! Was put on the earlier flight and I requested for an aisle seat and was given it. Thanks Qantas!

The crew were amazing - A great job. They made me feel special and valued.

Boarding was terrible - the ground staff member Fredeya at lax was more military than customer service, have never encountered a customer service representative as rude as her. Apart from that all other staff were wonderful and the flight was good.

The flight met my expectations. It left and landed on time

My bag didn’t make it but otherwise it was a great experience.

I travelled first class from LAX to MEL and it was a series of disasters which I put down to lax staff who dont care and a suck it attitude to customers - its all lip service and no delivery. The flight was delayed due to aircraft refuellers putting on 300,000 litres of fuel on a 380Q1. I entered via the first class bridge loaded my bags in the overhead locker. the lady in the next isle in first class also had hers in there as she wasn't allocated a locker over her seat. The attendant asked would I like a champagne - I said yes please. he promptly delivered a empty glass and the glass left on the desk. Then he ignored me for 20 minutes. When i asked him is he out of champagne he gave me the usual rubbish I was distracted. There are four staff and 15 first class passengers - give me a break. the glass stayed there on takeoff and then was still there 9 hours into the flight. When I arrived to my seat I told him I had eaten and wouldn't be eating on the flight - it was 10.30pm. Yet he comes by later 4am ( I happen to be awake) and says are you eating with us? I asked for the bed to be made up - they put a 3 inch 7cm mattress on the chair but as usual the break in the chair - the mattress sinks into it - so I had to move it around so I didnt get my back sunk in the V - Im 187cm tall. The cabinet next to 1K is for staff bags and the toilet is next door. I tried to avoid this seat but couldn't change - in to the flight 8 hours and the cabin rest change over kicks in - this attendant is shining his torch in my eyes taking out and returning his bag. Then the toilet starts flushing and forget trying to get to sleep. Yet no-one else needed torch! 11 hours into the 15.5 hour flight I ask for breakfast - I order two poached eggs, bacon on multigrain toast, tomatos and mushrooms. I get no bacon or toast and have to order it and the eggs are cold. Then I order a coffee which is so badly spilled - and not by air turbulence she brings back a serviette and replaces the first one rather than providing a clean dry saucer! First class in Qantas is a joke as the staff just don't get the meaning of prompt service and attention to detail. I will fly business class rather than first on Qantas as its better value for money but I have been very impressed with United First Polaris and given I fly internationally every month this is going to be my choice.

Book cheap flights from Philadelphia to Sydney

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Philadelphia to Sydney found on KAYAK in the last 72 hours.
16/5Thu
3 stops
46h 00mPHL-SYD
$1,319
18/5Sat
2 stops
44h 40mPHL-SYD
$1,426
14/8Wed
2 stopsUnited Airlines
32h 55mPHL-SYD
$1,440
14/8Wed
1 stopQantas Airways
23h 27mPHL-SYD
$1,475
18/5Sat
3 stops
44h 50mPHL-SYD
$1,546
16/5Thu
2 stops
46h 00mPHL-SYD
$1,560
20/5Mon
2 stopsAir Canada
31h 15mPHL-SYD
$1,573
20/5Mon
3 stops
41h 20mPHL-SYD
$1,606
28/10Mon
3 stopsAir Canada
49h 40mPHL-SYD
$1,746
20/5Mon
1 stopQantas Airways
21h 45mPHL-SYD
$2,095

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Last minute flights from Philadelphia to Sydney

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Philadelphia to Sydney that are departing in the next 10 days.
8/5Wed
multi-stopAir New Zealand
34h 40mPHL-SYD
10/5Fri
multi-stopAir New Zealand
37h 47mSYD-PHL
$3,390
8/5Wed
multi-stopAir New Zealand
34h 45mPHL-SYD
10/5Fri
multi-stopAir New Zealand
25h 02mSYD-PHL
$3,422
8/5Wed
multi-stop
25h 22mPHL-SYD
10/5Fri
multi-stop
31h 45mSYD-PHL
$3,847
8/5Wed
multi-stop
21h 45mPHL-SYD
10/5Fri
multi-stop
27h 13mSYD-PHL
$4,184
8/5Wed
multi-stop
32h 16mPHL-SYD
10/5Fri
multi-stop
31h 15mSYD-PHL
$5,070
11/5Sat
multi-stopCathay Pacific
31h 15mPHL-SYD
22/5Wed
multi-stopCathay Pacific
45h 37mSYD-PHL
$14,278
11/5Sat
multi-stopIberia
68h 05mPHL-SYD
22/5Wed
multi-stopIberia
54h 20mSYD-PHL
$17,609
11/5Sat
multi-stopAir New Zealand
34h 42mPHL-SYD
22/5Wed
multi-stopAir New Zealand
55h 32mSYD-PHL
$18,686
11/5Sat
multi-stopQantas Airways
24h 39mPHL-SYD
22/5Wed
multi-stopQantas Airways
35h 33mSYD-PHL
$21,523
11/5Sat
multi-stopBritish Airways
44h 40mPHL-SYD
22/5Wed
multi-stopBritish Airways
42h 17mSYD-PHL
$49,843

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Philadelphia - Sydney Flights

Departure:

Philadelphia (PHL)United States

Destination:

Sydney (SYD)Australia

Return flight deals:

Sydney - Philadelphia

Cabin classes:

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