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Everything you should know

Cheapest return flight
$1,312
Typical prices: $1,668-$2,523
Air Canada
Sun 28/10Sun 4/11
SYD - PHL • 3 stops
Cheapest one-way flight
$1,263
Typical prices: $1,097-$2,121
Delta
Wed 31/1
SYD - PHL • 2 stops
Top airlines
Best reviews • 7.6 score
Airline reviews
Airline reviews
Top routes
Cheapest • 20% average savings
Most popular
Insights
Insights
When to travel
Cheapest • 17% price drop
Most popular
Good to know
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Flight Deals

Cheap Flights to Philadelphia

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to Philadelphia

Wed, 28 Oct - Wed, 4 Nov
Air Canada Logo
10:20 - 14:44SYD  Sydney Kingsford Smith-PHL Philadelphia
43h 24m3 stops Vancouver Intl Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
15:20 - 09:35PHL  Philadelphia-SYD Sydney Kingsford Smith
26h 15m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl
$1,312Air Canada
Mon, 19 Oct - Mon, 26 Oct
Air Canada Logo
10:20 - 21:32SYD  Sydney Kingsford Smith-PHL Philadelphia
50h 12m3 stops Vancouver Intl Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
15:20 - 08:35PHL  Philadelphia-SYD Sydney Kingsford Smith
26h 15m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl
$1,312Air Canada
Wed, 28 Oct - Wed, 4 Nov
Qantas Airways Logo
11:10 - 20:38SYD  Sydney Kingsford Smith-PHL Philadelphia
24h 28m1 stop Los Angeles Los Angeles
Qantas Airways Logo
15:55 - 09:00PHL  Philadelphia-SYD Sydney Kingsford Smith
25h 05m1 stop Los Angeles Los Angeles
$1,644Qantas Airways
Mon, 19 Oct - Mon, 26 Oct
Qantas Airways Logo
10:10 - 16:19SYD  Sydney Kingsford Smith-PHL Philadelphia
21h 09m1 stop Los Angeles Los Angeles
Qantas Airways Logo
17:30 - 09:00PHL  Philadelphia-SYD Sydney Kingsford Smith
24h 30m1 stop Los Angeles Los Angeles
$1,647Qantas Airways
Wed, 28 Oct - Wed, 4 Nov
American Airlines Logo
11:10 - 20:38SYD  Sydney Kingsford Smith-PHL Philadelphia
24h 28m1 stop Los Angeles Los Angeles
American Airlines Logo
15:14 - 09:00PHL  Philadelphia-SYD Sydney Kingsford Smith
25h 46m2 stops Dallas/Fort Worth Los Angeles Los Angeles
$1,658American Airlines
Mon, 19 Oct - Mon, 26 Oct
American Airlines Logo
10:10 - 18:50SYD  Sydney Kingsford Smith-PHL Philadelphia
23h 40m2 stops Los Angeles Los Angeles Dallas/Fort Worth
American Airlines Logo
19:45 - 09:00PHL  Philadelphia-SYD Sydney Kingsford Smith
22h 15m1 stop Los Angeles Los Angeles
$1,658American Airlines
Thu, 5 Nov - Mon, 9 Nov
United Airlines Logo
11:20 - 23:39SYD  Sydney Kingsford Smith-PHL Philadelphia
28h 19m2 stops Los Angeles Los Angeles Denver Intl
United Airlines Logo
19:53 - 07:00PHL  Philadelphia-SYD Sydney Kingsford Smith
43h 07m1 stop Houston George Bush Intcntl
$1,664United Airlines
Thu, 5 Nov - Mon, 9 Nov
United Airlines Logo
11:50 - 22:49SYD  Sydney Kingsford Smith-PHL Philadelphia
26h 59m1 stop San Francisco
United Airlines Logo
19:53 - 07:00PHL  Philadelphia-SYD Sydney Kingsford Smith
43h 07m1 stop Houston George Bush Intcntl
$1,664United Airlines
Sat, 10 Oct - Sat, 17 Oct
Qatar Airways Logo
22:00 - 14:30ADL  Adelaide-PHL Philadelphia
31h 00m1 stop Doha Hamad Intl
Qatar Airways Logo
21:30 - 16:00PHL  Philadelphia-ADL Adelaide
28h 00m1 stop Doha Hamad Intl
$2,835Qatar Airways
Sat, 10 Oct - Sat, 17 Oct
Qatar Airways Logo
22:00 - 14:30ADL  Adelaide-PHL Philadelphia
31h 00m1 stop Doha Hamad Intl
Qatar Airways Logo
21:30 - 22:30PHL  Philadelphia-ADL Adelaide
34h 30m2 stops Doha Hamad Intl Brisbane
$2,896Qatar Airways
Booking Insights

Price, demand, and travel trends for Australia to Philadelphia flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Australia to Philadelphia with more confidence.

What is the cheapest flight to Philadelphia?

Sydney to Philadelphia is the cheapest route at $1,312 return, found in the past 5 days on KAYAK. KAYAK data shows this is also the most popular route.

How much is a flight to Philadelphia?

A return flight to Philadelphia costs $2,042 on average, based on data over the past 12 months on KAYAK. Return fares from Sydney average $1,792, while Melbourne Airport runs a bit higher at $1,809.

What is the cheapest day to fly to Philadelphia?

Sunday is the cheapest day to fly to Philadelphia at $1,657 return on average over the past 12 months on KAYAK. Friday is the most expensive at $2,336.

What is the cheapest month to fly to Philadelphia?

  • September is the cheapest month to fly to Philadelphia with an average price of $1,699 return.
  • June ($2,598) and January ($2,505) are the most expensive.
  • Based on KAYAK data over the past 12 months.

What is the cheapest time of day to fly to Philadelphia?

Afternoon flights to Philadelphia are the cheapest at $1,975 return on average. Night flights are the most expensive at $2,339.

What is a good deal for flights to Philadelphia?

Flights under $1,668 are considered a good deal. 25% of KAYAK users found return flights to Philadelphia at or below these prices, with the lowest fares from:

  • Melbourne Airport $1,567
  • Sydney $1,582
  • Brisbane $1,612
.

Key details for flights to Philadelphia

Low season

February

Cheapest flight

$1,263
Best time to beat the crowds (6% less expensive on average)
Most popular time to fly and prices are also 9% lower on average.
Flights from Sydney to Philadelphia

When to book flights to Philadelphia

Are your dates flexible? Find out the best times to travel to Philadelphia based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your questions about flights to Philadelphia, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • What is the difference between the most popular and the most frequent airline at Philadelphia?

    United Airlines operates the most flights from Australia to Philadelphia at 0 per week, and for this route United Airlines is also the airline most often selected by KAYAK users searching for flights from Australia to Philadelphia. The two are sometimes different because flight volume reflects an airline's schedule, while popularity reflects traveller choice.

  • How do I know if a flight to Philadelphia is a good deal?

    A good deal on a flight to Philadelphia is around $1,668 return. This fare is in the lowest 25% of return flight prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

Your guide to booking Philadelphia flights

From booking to airport arrival, find tips to help you plan your flight with more confidence.
  • For flights to Philadelphia, recent KAYAK data shows that stronger deals tend to be around $1,668 return. If you see a fare below that threshold, it's a good deal – book before the price climbs back up.
  • If you can choose when to go, aim to travel to Philadelphia in September. Return fares historically average $1,699 that month – typically the cheapest month to travel based on the last 12 months.
  • Before you book:

    • Check the route's typical price range so you can spot a deal.
    • Confirm baggage fees and seat selection costs on budget carriers.
    • Verify whether you need any travel documents beyond an ID.
    • Pick a departure airport, since your nearest may not be the cheapest origin.
  • Shift your departure to midday to save up to $364 per return. Midday flights to Philadelphia average $1,975 compared to $2,339 for evening flights. See the time-of-day chart above for the full breakdown.
  • Once you arrive in Philadelphia, a few great places to start are University of Pennsylvania and Rittenhouse Square. These are popular with first-time visitors and can give you a good feel for the area.

Reviews of the top 4 airlines flying to Philadelphia

 
Need help choosing which airline to fly with to Philadelphia? 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.
7.5
Qantas AirwaysOverall score based on 1094 reviews
7.2Entertainment
7.7Boarding
7.4Comfort
7.0Food
8.1Crew
Airline reviews

Overall, it was a very good experience. I would have given it a 10/10, especially based on our flight from SFO to Melbourne. The cabin crew on that flight were wonderful and incredibly attentive. They took extra care when setting up our beds so we could sleep comfortably without being disturbed. Dinner was served promptly and smoothly. I woke up quite late, when the flight was already preparing for landing, and the crew still made sure I was taken care of. They brought me English tea in a proper cup, and when it was time to prepare the cabin for landing, they thoughtfully transferred it into a takeaway cup so I could continue enjoying it along with some breakfast. Those small, thoughtful gestures made the long flight feel much more comfortable and special. The service from the SFO to Melbourne crew was truly excellent.

8.0 ExcellentAnonymous, Aug 2026
Read more Qantas Airways reviews

Overall, it was a very good experience. I would have given it a 10/10, especially based on our flight from SFO to Melbourne. The cabin crew on that flight were wonderful and incredibly attentive. They took extra care when setting up our beds so we could sleep comfortably without being disturbed. Dinner was served promptly and smoothly. I woke up quite late, when the flight was already preparing for landing, and the crew still made sure I was taken care of. They brought me English tea in a proper cup, and when it was time to prepare the cabin for landing, they thoughtfully transferred it into a takeaway cup so I could continue enjoying it along with some breakfast. Those small, thoughtful gestures made the long flight feel much more comfortable and special. The service from the SFO to Melbourne crew was truly excellent.

Great food and good entertainment options for the long flight.

Loved the food and beverages available, spacious economy class, excellent entertainment

Very good overall. Highly recommend for all flying to Australia

We had bulkhead seats in a A380 in the upper deck in seats 31 D and E. Storage was very limited other than in overhead bin - which is not within reach when in seat. Yet paying same price as others in premium economy who have a lot more storage within arm’s reach. Seems very unfair.

Good check in and helpful staff. Delayed for 1 hour. Took about 45 Mins to get baggage’s at DFW . Food was average ( Hindu meal ) . Overall it was good experience

When I originally booked this flight, I was expecting to travel on Qantas. When the itinerary changed and the long-haul segment was operated by American Airlines, we were disappointed but remained open-minded. Unfortunately, the overall service experience fell far short of expectations. This was a long-haul international flight. Getting up periodically to use the restroom or stretch is inevitable, especially on flights of this duration. However, each time we stood up, we felt as though we were inconveniencing the crew. The tone and body language often suggested that we were in the way or disrupting something simply by moving about the cabin. As a result, I avoided getting up as often as I needed to and was physically very sore upon arrival. Meal service was similarly impersonal. The options were presented in single words “beef or veggie,” “pasta or beef” without any description of what was actually being served. There was little engagement or courtesy beyond that. Even simple expressions of gratitude were often not acknowledged. I am accustomed to no-frills travel and do not expect luxury. What was disappointing was not the absence of extras, but the absence of basic warmth and professionalism. On a long-haul international flight, small moments of courtesy and humanity make a significant difference. In this case, the experience felt transactional and dismissive rather than welcoming. I hope this feedback is taken constructively, as there is a meaningful difference between efficient service and indifferent service.

Business seats not as comfortable or private as most competitors (e.g. Qantas was outstanding), and movie selection was much more limited than Qantas or United has been recently

Hard to move and get out of my seat when the passenger in front is in recline position.

After flying Quantas (Prem Econ - SYD-SFO) which was Spectacular, we boarded AA flight SFO/PHL.. Prem Econ was NOT available on this flight so we were stuck in Econ - even though we paid $2600 EACH/ONE WAY for this ticket. I even had to BUY extra legroom seats - this AT LEAST should have been included on the AA flight. There were no screens in seatbacks, forcing passengers to use phones for entertainment. No water bottles were provided - only cups of water. The Quantas flight was FAR superior to the AA flight - even though we purchased Prem Econ for the FULL trip....

When we checked in at the Siem Reap Airport in Cambodia, we were only given three boarding passes and told that we would have to check in with American when we arrived in Boston. This was a source of stress for us. After we landed in Boston, we had a long passage from Terminal E to Terminal B (American Airline ticketing counter). Because the electronic ticketing kiosks for check-in would not recognize our Confirmation Code, we had to wait for an hour in a long line where only two AA reps were taking care of Special Services passengers. In many years of both business and recreational travel, I have never had this experience. I would expect more from AA being in partnership with other airlines to do a better job with this.

It was very good. It was a long flight and being a tight with little leg room.

Nothing to complain. The staff and flight was good especially the seats which was better compared than the cloth ones on Qatar airways

First keep the airline as you promise. Reason for travelling from Orlando to Tampa is to go with Qatar Airline. We end up with American Airline. As expected the service was horrible.

Not sure how we end up with American Airlines instead of Qatar Airways. From Philadelphia to Qatar they boarded us then they asked us to unload. After 30 minutes later they board us again. The inside the plane it was burning hot and we were sweating like crazy. Crew members are absolute rude. The way they served the passengers were horrible. One of the crew members hit my knee with food cart and kept going. I was holding an ice pack for almost 2 hours. I am still with the pain.

I felt that when I was rerouted it should have been to business class.

Seating is terrible, having seats so crammed is unacceptable for a 15-hour journey. I cannot stress enough how uncomfortable it is to sit in such an aircraft. Leg space is roomier in a domestic aircraft. I have not experienced this kind of crammy seating in domestic flights either in the US or other international airlines overseas.

It was a really long flight from Doha to Philadelphia and it was overall a good one. The one area that I would comment on is that there is a lot of single-use plastic and disposables in the meal service for American Airlines. It would be great to see more circular options in the meal service to reduce the amount of waste.

The crew was great and the food and liquor offerings were good. Seats were a bit cramped. Flight arrived early at destination. That's a plus.

I had already opted for Vegan food before 2 months yet they say we have no record for it,

Uncomfortable plastic seats even in premium economy. No free wifi. Even paid wifi was spotty to nonexistent. Bad food. Much worse than economy on foreign carriers like Qantas.

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

Everything went well except the turbulence what no one have a control of but pilot and crew handled very good!

Good flight. However, when booked flight with United, assumed the layover included by United in San Francisco of 1 hr and 40 minutes was sufficient . Not so and would recommend at least 2 hours or more. Needed to go through US immigration (very long lineups), then pick up bags, take all the way to another terminal, running because we did not have sufficient time. We made the flight because they held the door for us but luggage didn’t follow.

It was good but only meal served is very less. Meantime good to add rice and chicken in one of meal

I still prefer Delta, but Delta doesn’t fly to State College PA.

This flight was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

Nothing bad to say about the actual crew or airline. It was nice to have a complimentary FULL can of soda, as well as a snack. Blankets and earbuds were also provided at no cost for this red eye flight. I especially appreciated the free WiFi and movie selection with the Bluetooth option. It helped the flight pass more quickly. No matter who you fly, boarding and disembarking are always SUCH a pain. As I mentioned, this is on the passengers and not the crew!!

Flight attendants rude and impolite… flight delayed by almost 5 hours.

Ok so apparently the new policy on United Airlines is that customers in the main cabin should NEVER be served more than once and besides picking up trash there should NEVER be another interaction with the customer for any reason.

I've flown American several times this summer and I have yet to get a flight that leaves on time. However, a delay is better than a cancel. So far I have had four canceled flights and two delayed flights

The flight was delayed and was not forthright on the time that it was likely to depart where Flight Radar 24 was reflecting a later time that ended up being accurate for the takeoff. The plane was filthy with food smashed into the carpet and crumbs were piled under the seat where I was to put my backpack. It looked like a full sized Lotus Biscoff cookie was pulverized under the seats in my section. The seats were so uncomfortable especially when the person in front reclined his seat completely to where it was smashed against my knees and I am only 5'2". The fruit and cheese box for $13 was lackluster with no flavor and not satiating at all. The plus side is that I did get one full can of ginger ale. The flight attendants looked miserable and tired, probably due to the last minute need for a new flight attendant to fill in since the original one assigned could not continue on to service this flight. Improve the flight experience for customers and maybe the irritability and stress of flying in today's environment will not negatively impact the joy and stress of the employees/flight crew. This is why I prefer to fly non-US carriers whenever given the chance.

DELAYED AGAIN and AGAIN and AGAIN - not only that, you delay in 20 minute increments for hours and hours instead of having an accurate delay understanding.

Communication not good, too many changes. Three flights were cancelled due to weather and the options were not acceptable. I had to cancel my Canada portion of the trip.

On time and stellar premium class service. Not liking non LCD display in seat backs - miss the convenience of not using your own device.

Very long delay at PHL. The old section of terminal F is a disgrace. Take-off was 3.5 hrs late. It was not just the bad weather, but also too many jets occupying too few slots, a very PHL-based problem.,

My luggage is missing. I haven’t received it. No one seems to know how I can find it

Nothing with the flight. It was good. Crew as very helpful especially fist class flight attendant.

Everything is poor, 1st of all American Air should fix the flight schedule, I never reach my destination ever on time,

Flying on this airline is nothing short of a full blown circus clown show. It is so mismanaged it should not be in business as there is no way it can be safe as badly as it is managed. It is 100% about money and customers be damned. On a recent return from my mother’s funeral, my only available choice from IND to PWM was American, which I hesitantly booked as I rarely fly them for many of the following reasons and never will again. I was booked IND-PHL-PWM totaling about six hours. The flight was cancelled due to NE weather. They rebooked me on a two stop flight IND-DFW (Yes DALLAS)-PHL-PWM, still all on the same day. After arriving in DFW, they continually delayed the DFW-PHL flight due to maintenance issues on the arriving flight. Finally it was delayed to the point that my PHL-PWM connection was no longer possible. They then rebooked me thru LGA with the short flight the NEXT DAY to PWM and offered to put me up for the night in NYC (or so I assumed). The flight DFW-LGA was then delayed so much that I asked to be put in an earlier flight with a lessor delay. Throughout this day chats with their AI assistant were useless as were subsequent chats supposedly with a real person(?). Only one customer service agent in DFW was actually helpful and appeared to care. Upon arrival at LGA post midnight, they issued me car and hotel vouchers in Trenton NEW JERSEY at a very old Howard Johnsons ONE HALF HOUR from LGA. The hotel was an $85, 1.5 rated hotel in a very sketchy area of NJ that I would have never voluntarily booked. As I prepared to catch the car back to LGA the next morning I received a text that my flight was cancelled. TWICE IN TWO DAYS. I went to LGA hoping to have AA book me on an earlier Delta flight. The full service line was at least 200 people deep, so I tried to reach a real person agent by phone. After 1/2 hours on hold I gave up and waited for my later LGA-PWM flight. It actually started boarding on-time, but only shortly after announced a maintenance hold. We were told it was nothing serious, just an adjustment to the Captains seat. Only one update was given while we waited 1.5+ hours for a “SEAT ADJUSTMENT”. During that time at least three others flights in my area announced that they were overbooked and were taking volunteers before bumping people. Another flight to ORD announced a gate change and less than five minutes after announced that they were really not changing and announced for everyone to return to that gate. Can’t forget to mention that on all of these planes the WiFi only worked on two.🤡🤡

Travelling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
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