SYD - PHL

$750 Find Cheap Flights from Sydney to Philadelphia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sydney to Philadelphia departing on 7/9. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Philadelphia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sydney to Philadelphia, 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 Sydney to Philadelphia, as well as popular online travel agencies
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Cheap Flight Deals from Sydney to Philadelphia (SYD-PHL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sydney to Philadelphia 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 round-trip flight deals from Sydney to Philadelphia

KAYAK's recommended round-trip deals from the most popular airlines that fly from Sydney to Philadelphia.
Discover the best prices for you by selecting your travel dates on KAYAK.
American Airlines Logo
9:10 am - 5:43 pmSYD-PHL
22h 33m2 stops
American Airlines Logo
5:21 pm - 7:05 amPHL-SYD
23h 44m2 stops
$1,272American Airlines
Find Deal
Sun, Jun 1 - Sat, Jun 21
Air Canada Logo
10:20 am - 2:38 pmSYD-PHL
43h 18m2 stops
Air Canada Logo
3:30 pm - 8:35 amPHL-SYD
26h 05m2 stops
$1,321Air Canada
Find Deal
Sat, Oct 11 - Sat, Nov 1
United Airlines Logo
11:20 am - 5:28 pmSYD-PHL
21h 08m1 stop
United Airlines Logo
5:00 am - 8:15 amPHL-SYD
35h 15m1 stop
$1,359United Airlines
Find Deal
Sat, Oct 11 - Sun, Nov 2
Delta Logo
9:25 am - 8:34 amSYD-PHL
37h 09m2 stops
Delta Logo
6:00 am - 6:35 amPHL-SYD
34h 35m2 stops
$1,490Delta
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Fri, Jun 27 - Thu, Jul 17
 Logo
8:45 pm - 6:30 amSYD-PHL
47h 45m2 stops
 Logo
7:45 am - 7:30 amPHL-SYD
33h 45m1 stop
$1,577
Find Deal
Tue, May 13 - Fri, May 16
United Airlines Logo
10:20 am - 12:14 amSYD-PHL
27h 54m3 stops
United Airlines Logo
10:10 am - 7:00 amPHL-SYD
28h 50m2 stops
$1,602United Airlines
Find Deal
Tue, Aug 19 - Fri, Jan 16
 Logo
1:15 pm - 5:55 amSYD-PHL
30h 40m3 stops
 Logo
9:45 am - 7:20 amPHL-SYD
55h 35m2 stops
$1,649
Find Deal
Tue, May 13 - Fri, May 16
Qantas Airways Logo
9:10 am - 7:56 pmSYD-PHL
24h 46m1 stop
Qantas Airways Logo
3:49 pm - 7:05 amPHL-SYD
25h 16m1 stop
$1,815Qantas Airways
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Tue, Jun 10 - Sat, Jun 28
Qantas Airways Logo
10:10 am - 7:00 amSYD-PHL
35h 50m1 stop
Qantas Airways Logo
6:35 pm - 6:55 amPHL-SYD
45h 20m1 stop
$1,856Qantas Airways
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Wed, Oct 8 - Sat, Nov 1
Delta Logo
9:25 am - 6:20 pmSYD-PHL
22h 55m2 stops
Delta Logo
6:00 am - 8:35 amPHL-SYD
34h 35m2 stops
$11,397Delta
Find Deal
Mon, Sep 29 - Sat, Nov 8
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KAYAK's insights & trends for Sydney to Philadelphia flights

Get data-powered insights and trends into flights from Sydney to Philadelphia 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 Sydney to Philadelphia?

The average price of all round-trip flights from Sydney to Philadelphia clicked on KAYAK for each day over the last 12 months.

For Sydney to Philadelphia, Thursday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Philadelphia back to Sydney, the best deals are generally found on Sunday, with Thursday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sydney to Philadelphia, 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 Sydney to Philadelphia is February, where tickets cost $784 (return) on average. On the other hand, the most expensive months are December and September, where the average cost of round-trip tickets is $2,006 and $1,620 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Sydney to Philadelphia, 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 Sydney to Philadelphia, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.

Good to know

Low seasonJanuary
High seasonJune
Cheapest flight$750
Best time to beat the crowds but there is an average 15% increase in price.
Most popular time to fly with an average 11% increase in price.
Flight from Sydney to Philadelphia

When to book flights from Sydney to Philadelphia

Are your dates flexible? Find out the best times to travel from Sydney to Philadelphia 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 Sydney to Philadelphia

  • What is the cheapest flight from Sydney to Philadelphia?

    In the last 3 days, the lowest price for a flight from Sydney to Philadelphia was $750 for a one-way ticket and $1,272 for a round-trip.

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

    Yes

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

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

  • Which airline alliances offer flights from Sydney to Philadelphia?

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

  • Which is the best airline for flights from Sydney to Philadelphia, Qantas Airways or American Airlines?

    The two airlines most popular with KAYAK users for flights from Sydney to Philadelphia are Qantas Airways and American Airlines. With an average price for the route of $1,251 and an overall rating of 7.5, Qantas Airways is the most popular choice. American Airlines is also a great choice for the route, with an average price of $1,289 and an overall rating of 7.2.

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

    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 Sydney to Philadelphia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Philadelphia from Sydney 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 Sydney to Philadelphia?

    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 Philadelphia with an airline and back to Sydney with another airline. Booking your flights between Sydney and PHL 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 Sydney to Philadelphia?

    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 Philadelphia from Sydney up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airlines flying from Sydney to Philadelphia

 
See real verified KAYAK customer reviews for airlines flying from Sydney to Philadelphia. 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 Sydney 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 829 reviews
7.4Comfort
7.7Boarding
7.2Entertainment
6.9Food
8.2Crew
Airline reviews

Pretty excellent. I don’t know what the pilot could have done better with the bumping ( there was a storm) nor what happened to my ears coming down into bendigo. It doesn’t happen coming down into Sydney just the return flight. I wonder why?

10.0 ExcellentAnonymous, Apr 2025SYD - BXG
Read more Qantas Airways reviews

Pretty excellent. I don’t know what the pilot could have done better with the bumping ( there was a storm) nor what happened to my ears coming down into bendigo. It doesn’t happen coming down into Sydney just the return flight. I wonder why?

Touch screens were very difficult to use, generally being laggy and unresponsive- it was quite an art to get it to play the thing you wanted rather than some thing at random. Selection of films and Tv was good when touchscreen decided to finally respond.

Their aircraft are old and amenities lack way behind other international carriers leaving from BNE. Even in economy

Airport and crew experience was excellent. We had to queue for the runway - no one’s fault, but it did mean we were 30 minutes late leaving

Overall good experience with flight and airport wheelchair staff. Also got Indian food in the flights

Friendly staff, surprisingly good premium economy seats allowing good sleep/ snooze opportunity and very good menu.

Very good as always, stand out airline. The passengers whom choose to stuff baggage that otherwise should be checked-in is a real bother but that's not the airlines doing. A real frustration that passengers just don't want to check-in luggage. This is a pet hate unfortunately.

It’s a two prop flight so I had problems with my ears on re- entering ! But otherwise fine

I love flying with Qantas. There was no onscreen entertaining on this flight, and only a snack provided (not a meal) but still better than Jetstar or Virgin (in my opinion) so still happy.

Complaint is with American Airlines which delayed our flight from salt lake to Dallas reaulting in us missing our connection to Brisbane. Had to spend 24 hours in Dallas to wait for the next flight. Awful experience and ruined my wife’s birthday.

Wonderful as usual except for other guests that were unruly and not kept in check by the Crew.

This was an overnight flight. There was no meal service in first class, just a simple snack basket was offered along with beverages. There should have been some type of continental breakfast prior to arrival in PHL. As an Executive Platinum American Airlines Advantage member, I received no name recognition from the first class flight attendant. When disembarking at PHL, the flight attendants were more interested in their cell phones than saying "thank you" to the passengers as they disembarked.

the pilot that landed this flight in Philadelphia did an amazing job, the weather was absolutely terrible and we landed safely.

The flight was just perfect! We left a few minutes early, had a smooth flight and fortunately had landed before the terrible accident that took off from North Philadelphia airport shortly thereafter.

Timely boarding process, made up for lost time even after a lengthy wait for de-icing

My seat was wonky...hard and not much padding. I sat next to the Jumpseat for the flight attendant. Thoroughly enjoyed not have a third seat in that row! Flight attendants were amazing. I couldn't answer the "food quality" question as there is no food served on my short flight. I commend the pilot as I know it was super gusty when we landed. Thanks

I think I paid for an extra legroom seat and to be honest, there was not a lot of space available for my not very long legs. The flight was totally full and the staff did everything possible to meet the needs of all passengers. My only concern was for the size and spacing of my seat.

Flight was on time Crew was not. very friendly I paid for premium class and It wasn’t too much different from coach

I chatted with the captain before the flight, and similarly during the welcome announcement, he warned of a turbulent flight that may impact the in-flight service. However, once at altitude, he announced that the weather changed and he immediately turned off the seatbelt sign. But it appeared the cabin crew had already decided to take off this flight. They remained seated and then just chatted in the galley. The flight was fully catered, but only first class received service.

My flight attendant was attentive! The elderly person next to me was flatulent and the flight attendant could see that I was in distress and brought me some face masks

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

Information on your arrival and departure airports

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