SYD - PHL

$533 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 3/7. 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 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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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$1,314
Overall average: $793
American Airlines
Tue 3/17Tue 3/24
SYD - PHL • 2 stops
Cheapest one-way
$533
Typical prices: $472-$491
Multiple Airlines
Sat 3/7
SYD - PHL • 3 stops
Top airlines
American Airlines
Cheapest • from $1,314 (round-trip)
Qantas Airways
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 34% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 42% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Philadelphia!
Flight Deals
Booking Insights
Flight Deals

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

Recent round-trip flight deals from Sydney to Philadelphia

Tue, Mar 17 - Tue, Mar 24
American Airlines Logo
11:20 am - 7:40 pm
SYD
-
PHL
23h 20m
2 stops
American Airlines Logo
10:45 am - 9:00 am
PHL
-
SYD
31h 15m
1 stop
$1,314American Airlines
Tue, Mar 17 - Tue, Mar 24
American Airlines Logo
11:20 am - 7:40 pm
SYD
-
PHL
23h 20m
2 stops
American Airlines Logo
7:00 pm - 12:30 pm
PHL
-
SYD
26h 30m
2 stops
$1,336American Airlines
Tue, Mar 17 - Tue, Mar 24
Air Canada Logo
10:20 am - 10:44 pm
SYD
-
PHL
27h 24m
2 stops
Air Canada Logo
3:30 pm - 8:35 am
PHL
-
SYD
50h 05m
3 stops
$1,489Air Canada
Thu, Feb 19 - Mon, Feb 23
Air Canada Logo
11:20 am - 2:47 pm
SYD
-
PHL
43h 27m
2 stops
Air Canada Logo
3:30 pm - 9:35 am
PHL
-
SYD
50h 05m
2 stops
$1,500Air Canada
Thu, Feb 19 - Mon, Feb 23
Air Canada Logo
11:20 am - 2:47 pm
SYD
-
PHL
43h 27m
2 stops
Air Canada Logo
3:30 pm - 9:35 am
PHL
-
SYD
50h 05m
2 stops
$1,503Air Canada
Thu, Feb 19 - Mon, Feb 23
Air Canada Logo
11:20 am - 2:47 pm
SYD
-
PHL
43h 27m
2 stops
Air Canada Logo
3:30 pm - 9:35 am
PHL
-
SYD
50h 05m
2 stops
$1,512Air Canada
Thu, Jun 4 - Sun, Jul 5
American Airlines Logo
9:10 am - 4:37 pm
SYD
-
PHL
21h 27m
1 stop
American Airlines Logo
5:34 pm - 6:25 am
PHL
-
SYD
22h 51m
1 stop
$1,653American Airlines
Thu, Jun 4 - Sun, Jul 5
American Airlines Logo
9:10 am - 6:30 pm
SYD
-
PHL
23h 20m
2 stops
American Airlines Logo
5:34 pm - 6:25 am
PHL
-
SYD
22h 51m
1 stop
$1,657American Airlines
Thu, Jun 4 - Sun, Jul 5
Delta Logo
9:15 am - 6:25 pm
SYD
-
PHL
23h 10m
2 stops
Delta Logo
4:05 pm - 6:50 am
PHL
-
SYD
24h 45m
2 stops
$1,661Delta
Thu, Feb 19 - Mon, Feb 23
American Airlines Logo
11:20 am - 9:38 am
SYD
-
PHL
38h 18m
2 stops
American Airlines Logo
4:00 pm - 6:55 am
PHL
-
SYD
22h 55m
1 stop
$1,718American Airlines
Booking Insights

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 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 May and September, where the average cost of round-trip tickets is $1,907 and $1,767 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, which saves you about 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.

Find deals

Good to know

Low seasonNovember
Cheapest flight$533
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 41% 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 $533 for a one-way ticket and $1,314 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 is the only airline alliance operating flights between Sydney and Philadelphia.

  • 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.

Reviews of the top airline 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 982 reviews
7.7Boarding
7.0Food
7.5Comfort
7.2Entertainment
8.2Crew
Airline reviews

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

2.0 MediocreAnonymous, Jan 2026
MEL - LAX
Read more Qantas Airways reviews

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

It was a good flight and no complaints. It just wasn't anything that was better than any other flight.

The crew were wonderful - if only the customers were as well behaved as the attendants!! Ha ha! If you could just talk to God and ask for less turbulence next time.... Juuuuust kidding....

Basic airline, aircraft and service. AA gets you from point A to B. My flight was delayed by 2 hours too.

No internet on flight, which makes log travels really hard.

My flight from Dallas to Sydney was cancelled. My entire trip was rerouted to include the following: Hartford to Washington DC Washington DC to JFK JFK to Auckland Auckland to Christchurch I paid for an aisle seat on the flight to Auckland and was asked if I would take a window seat to accommodate a family. The agent at the podium failed to mention that the family had a 3 month old baby and that a bassinet would be used during the 16 hour flight. The only way I could get out of my seat was to crawl under the bassinet of the sleeping baby. I think it is wrong that I was no given the choice to sit in another seat, that the agent knew what she was doing and chose to not properly disclose my seating arrangement. Terrible treatment.

they ran out of fruit for breakfast and so I just had a yogurt instead. other than that the flight was good

by the time they got to our row, they were out of some of the food options. games and movies were great but maybe more game options like tetris or pac man would be great

Great as usual, some delays but well communicated and made up for in the air

Poor! This flight was delayed 14 hours. There was no assistance in helping customers find other routes to their destination, nor any other kind of support. It was a chaotic experience. I'm not likely to fly with AA going forward.

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

Information on your arrival and departure airports

Sydney (SYD)
Philadelphia (PHL)