PHL - SYD

$496 Find Cheap Flights from Philadelphia to Sydney

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 5/4. 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

KAYAK searches 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.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Sydney.
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Everything you should know

Cheapest round-trip
$1,210
Typical prices: $1,483-$866
Multiple Airlines
mar. 4/21mar. 4/28
PHL - SYD • 2 stops
Cheapest one-way
$496
Overall average: $1,094
Multiple Airlines
lun. 5/4
PHL - SYD • 3 stops
Top airlines
Cheapest • from $1,329 (round-trip)
Best reviews • 8.1 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Nonstop flights
Not available
There are currently no direct flights between Philadelphia and Sydney. You'll need at least 1 connection.
Insights
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Top layover airports
Cheapest • Avg $535 (round-trip)
Shortest trip • 9h 16m (one-way)
Insights
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When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 19% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 36% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Philadelphia to Sydney

mar., abr. 21 - mar., abr. 28
Multiple Airlines Logo
11:48 am - 7:30 am
PHL
-
SYD
29h 42m
2 stops
Multiple Airlines Logo
9:10 am - 6:50 am
SYD
-
PHL
35h 40m
2 stops
$1,210Multiple Airlines
lun., abr. 13 - lun., abr. 27
Multiple Airlines Logo
5:01 am - 7:30 am
PHL
-
SYD
36h 29m
2 stops
Multiple Airlines Logo
9:10 am - 1:21 pm
SYD
-
PHL
42h 11m
2 stops
$1,267Multiple Airlines
dom., abr. 19 - lun., may. 11
Multiple Airlines Logo
6:43 am - 7:30 am
PHL
-
SYD
34h 47m
2 stops
Multiple Airlines Logo
9:10 am - 5:37 am
SYD
-
PHL
58h 27m
2 stops
$1,319Multiple Airlines
mar., abr. 21 - mar., abr. 28
Qantas Airways Logo
5:37 pm - 9:20 am
PHL
-
SYD
25h 43m
2 stops
Qantas Airways Logo
12:00 pm - 8:34 pm
SYD
-
PHL
22h 34m
1 stop
$1,329Qantas Airways
lun., ago. 17 - lun., ago. 31
Qantas Airways Logo
5:45 pm - 6:55 am
PHL
-
SYD
23h 10m
1 stop
Qantas Airways Logo
3:45 pm - 7:05 am
SYD
-
PHL
29h 20m
2 stops
$1,332Qantas Airways
jue., abr. 23 - sáb., may. 9
Multiple Airlines Logo
5:05 am - 7:30 am
PHL
-
SYD
36h 25m
2 stops
Multiple Airlines Logo
9:10 am - 7:12 am
SYD
-
PHL
36h 02m
2 stops
$1,337Multiple Airlines
mar., abr. 21 - mar., abr. 28
Qantas Airways Logo
3:43 pm - 7:05 am
PHL
-
SYD
25h 22m
1 stop
Qantas Airways Logo
9:10 am - 6:54 pm
SYD
-
PHL
23h 44m
1 stop
$1,348Qantas Airways
mié., jul. 1 - lun., jul. 13
Qantas Airways Logo
3:29 pm - 7:05 am
PHL
-
SYD
25h 36m
1 stop
Qantas Airways Logo
9:10 am - 6:28 pm
SYD
-
PHL
23h 18m
1 stop
$1,349Qantas Airways
mar., may. 5 - mar., may. 12
Qantas Airways Logo
5:37 pm - 7:05 am
PHL
-
SYD
23h 28m
1 stop
Qantas Airways Logo
9:10 am - 6:54 pm
SYD
-
PHL
23h 44m
1 stop
$1,352Qantas Airways
mié., abr. 22 - mié., abr. 29
Qantas Airways Logo
3:21 pm - 6:55 am
PHL
-
SYD
25h 34m
1 stop
Qantas Airways Logo
9:10 am - 6:54 pm
SYD
-
PHL
23h 44m
1 stop
$1,353Qantas Airways
Booking Insights

KAYAK's insights & trends for Philadelphia to Sydney flights

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.

How much is a round-trip flight from Philadelphia to Sydney?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Philadelphia to Sydney departing in April.

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 round-trip 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 April, where tickets cost $959 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $1,887 and $1,770 respectively.

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

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 Sydney, 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 Sydney, you should book around 2 weeks before departure, which saves you about 19% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low seasonApril
Cheapest flight$496
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly with an average 2% increase in price.
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 round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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 $496 for a one-way ticket and $1,210 for a round-trip.

  • Do I need a passport to fly between Philadelphia and Sydney?

    Yes

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

    Philadelphia and Sydney are both served by 1 main airport. You will leave Philadelphia from Philadelphia and will be arriving 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 Star Alliance being the most commonly used for this route.

  • What is the most popular layover when flying to Sydney from Philadelphia?

    Los Angeles is the most popular layover city among KAYAK users traveling from Philadelphia to Sydney.

  • Which is the best airline for flights from Philadelphia to Sydney, Fiji Airways or Air New Zealand?

    The two airlines most popular with KAYAK users for flights from Philadelphia to Sydney are Fiji Airways and Air New Zealand. With an average price for the route of $1,526 and an overall rating of 8.1, Fiji Airways is the most popular choice. Air New Zealand is also a great choice for the route, with an average price of $1,548 and an overall rating of 8.0.

  • 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 round-trip ticket. You could then fly to Sydney with an airline and back to Philadelphia with another airline. Booking your flights between Philadelphia and SYD can sometimes prove cheaper using this method.

  • 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.

KAYAK’s 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.

Reviews of the top 5 airlines serving 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.
8.1
Fiji AirwaysOverall score based on 235 reviews
8.2Boarding
8.5Crew
8.1Comfort
7.5Food
7.5Entertainment
Airline reviews

Left on time , arrived on time. Staff was awesome!!!!! Great flight!!!!

10.0 ExcellentNick, Mar 2026
NAN - LAX
Read more Fiji Airways reviews

Left on time , arrived on time. Staff was awesome!!!!! Great flight!!!!

Great food, wonderful staff made a long flight seem short

Everything was great . Arrived on time was smooth plane was clean. Crew/Staff was friendly and helpful.

Everything from the staff to the comfort of business class was excellent. This is one of my new favorite airlines.

Ticketing said dinner for the almost 14 hour flight and we were delayed an hour. However, onboard we were only served a sluce if pizza bread and a cookie. Not at all dinner and insufficient for a long international flight. Breakfast was good.

We have had an absolutely horrific experience so far getting home from Australia on a $18,000 + flight we booked with you. The flight did not deplane in Dallas because there was no available gate or staircase. We sat in the plane for 3 hours waiting to deplane. As a result we missed our connecting flight to New York. American Airlines put us up in a hotel several miles away. We waited 45 minutes for a shuttle and The shuttle driver was horribly rude and unhelpful. They offered us $70 vouchers for food but actually there was no food left when we arrived minus some chicken nuggets and corn dogs. It was awful. Horrible way to end a vacation. There has to be accountability here.

A bit cramped in economy and the people in front wouldn’t put their seats up during meal service, crew did not help with that and I felt they could have done more about it.

The airline is ok, but it needs to improve it schedules.

Again, Fijian hospitality was genuine, very comfortable, only improvement would be the entertainment. Why Do they only have 5 episodes of TV shows and from like season three...

Fiji Airways was amazing, will definately be lfying them again. The "Fijian hospitality" is not a catch phrase, it is genuine. the only things that could be improved is the entertainment. Not a great choice of movies, and the TV shows only have about 5 or so episodes, and often of a random season.

This was the worst flight I’ve been on. Getting on the plane where is was 30 degrees outside was hotter on board cabin must’ve been 33 degrees. This is a health hazard. They cannot be doing this to save on fuel. People could die from this!!. Fans and a/c was, off entertainment was off. Poor excuse given. Crew made the excuse that the system didn’t have enough power. They basically were operating on one engine to save on jet fuel till 3 hours later on cruising altitude and they then started the second engine. And finally the cabin was cooled. On a 7hour red eye flight this made it so uncomfortable and impossible to sleep.

My experience was great overall. Tanya was particularly friendly and helpful the entire trip. I was very pleased with her customer service skills. The plane was an older aircraft but the entire way was comfortable with barely any turbulence at all. Qantas should speed up its fleet renovation. Totally recommend using this airline.

Qantas is always subpar beyond comfy chairs for a domestic flight

I liked boarding the plane. The staff were rude, the food was appalling and the chairs the most uncomfortable I have ever experienced

an hour late, then had to disembark on back stairs and take 4 flights up to get to main airport. No warning, and difficulty for those with canes and poor knees.

Well my expórtenle with Qantas it wasn’t that good KLM from Bs Aires was delay Santiago Chile Qantas QF 028 was still in the airport but the crew didn’t opened the door for me soo I lost my fly And I stuck in the airport 13 hrs waiting for next fly by Latam Arline My question is can I have my money back for business class

It was ok, the additional baggage charges were a bit excessive given winter is a time for skiing. To have to pay $600 extra for skis was tantamount to robbery. Airlines should consider sporting goods as baggage. Likewise, they should consider increasing the number of bags allowed on international flights to known ski destinations.

Flight was canceled. I was not alerted. It was only kayak that alerted me

Flight was 2.5 hours late leaving. We spent 50 minutes of that sitting on the plane with no explanation. They did reduce the time in the air so we arrived a little less late which was something. The cheese and crackers were okay but the wine was terrible.

Couldn't access entertainment on app as said in an email

During landing. 2 crew members passed 3 times by my lane and didn't notice that people in front of us had their site to the furthermore reclined... That was uncomfortable and could have been dangerous.

They delayed the flight from 9:00 to 11:55 At 11:45 they canceled the flight. I paid a premium price for the tickets with poor service

We had excellent customer service despite the chaos at George Bush airport in Houston!

It isvvery small flight. No leg room . No space to put my personal item at feet.

I will never fly ANA again. They lost one of my large pieces of checked luggage, the heaviest one with the most valuable items in it, and they said they will not send me an email unless they can't find it, even though the paper they gave me to track the status of my lost luggage requires a code from an email they are supposed to send me so I can do baggage tracing. They claim to be an international airline, but they also insist on calling a Japanese telephone number to confirm where to send the lost baggage if they find it. It is impossible to find an actual contact email address for customer support on their website, and their AI chatbot is unhelpful, directing you to a webpage that says it is for contact information but does not have any actual email addresses or phone numbers listed on it. My seat in economy did not recline at all, even though I was not sitting in an exit row nor the very back row. I had to sit in the fully upright position for over ten hours of international travel. Awful experience overall.

No seat back entertainment. And app had a hard time getting entertainment loaded.

ticket agent lady wás very helpful , she arranged wheel chair for my elderly mother

Didn't make the flight because the first leg of my flight was canceled and the next leg was already booked.

My flight was canceled a few hours before boarding. I was rebooked on Copa airlines and missed an important meeting .

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

I appreciate that I finally got the seat I paid extra for this time. Thank you

Half of the TSA checkpoints at PHL are closed. Also, there is no standby for first class passengers. You can only standby for coach. Very dated policy and inconsistent with peers.

It would have been nice if American tried to care.

Delayed initially because they couldn’t print the flight details. Poor instruction on delay. When I got on the plane the flight attendant argued with me about whether my carry on would fit (it did, although she didn’t acknowledge that). No greeting (other than arguing with me) getting on or off the plane.

Beverage service was not good. Also just one service in 5 hr 30 min flight. No ask fir water ir anything beside one time beverage service.

They are always late and seats was also not having working charger

Baggage allowances are terrible and the experience of only being allowed one bag and paying so much to take sporting equipment to a known ski area should be addressed.

Broke my luggage and I can't get a resolution yet.

My flight to London from Philadelphia was cancelled due to weather.

This flight captain and crew were amazing, started ahead of time of departure and reached 30 mins before arrival time. Amazing!

The most uncomfortable flight I’ve ever been on. I’m only 5,4” and barely had enough room to exist, couldn’t even fully relax my shoulders. Not sure why they bother with snacks. Half a coke and a single cookie?? Wow. Purchasable food looked gross too. Remember when airlines used to treat you like a human being?

Departed Palm Springs over an hour late because there’s only one gate, and it has always delayed by the arriving and departing flight to Toronto and the arriving flight from Vancouver.

I checked a bag and there was only one agent to assist all customers with any issues.

I want to thank Carlos at the Miami AC desk - he was amazing and went over and above to help us out. Thank you Carlos and all the best to you!!! You made our faith in AC feel great! Sincerely, David Cubitt

Flight was canceled due to mechanical issues. After a considerable wait in the queue, Air Canada customer service was very helpful to get us on another flight. I am disappointed to report our rescheduled flight is for three days from now. Three days of extra expenses and inconvenience is unacceptable.

Extremely disappointing. My original Denver–Vancouver–Bangkok itinerary was cancelled due to a crewing issue. I was not proactively supported and had to drive back home after already reaching the airport. Communication was poor throughout, and attempts to contact customer service resulted in being on hold for nearly three hours without reaching anyone. Instead of being rebooked on the same direct routing the following day, I was rerouted onto a much longer itinerary via multiple cities and airlines, which resulted in arriving approximately 30 hours later than scheduled. At Denver airport, there was no visible Air Canada representative available to properly assist. Ground staff offered no real support beyond directing passengers to a phone number. There was no clear communication, no ownership, and no meaningful customer care during a major disruption. The final journey involved three flights instead of the original two, significantly increasing travel time and stress. Overall, the handling of the cancellation and lack of customer support was unacceptable. What could have been better? Clear communication during the cancellation Accessible customer service (phone support that actually answers) Proper in-person assistance at the airport Rebooking onto a comparable routing rather than a significantly longer one

Great setup on both flights except the last flight we got condensed dripping all over me in the last 20 mins of the flight

The last 3 hours it was freezing cold in row 56. Multiple people had their winter coats on and were utilizing the blankets provided by the airline. I also did not have easy access to figure out how to book my food allergy and advance for my meals. Most of everything I received was something I couldn't eat. This needs to be made more accessible. Also, I'm 5'10 which is the average height of the American male. I flew from Philadelphia to Toronto and then to Tokyo and the seats were absolutely unbearable. For that long of a flight it is impossible to get comfortable when doing anything. Flights need to have more space and stop prioritizing costs over people.

Was delayed at every point/ connection. Luggages missing for 5days. Had no medications for diabetes and high B/p. when bags where finally delivered on the 30th, the insulin and ozempic were no longer patent, as the ice pack had since dissolved and the authenticity of the med is now questionable, since they must be refrigerated. Please have them refund my bag fees. I should sue them for all the inconveniences caused to me.

The plane was delayed substantially due to a mechanical problem, that being said, the airline was very fair with providing a meal coupon for us. I would rather arrive late on a mechanically sound plane than the alternative. The food served in the plane was just awful, however and I recommend a new catering company.

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

Information on your arrival and departure airports