SYD - PHL

$643 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 12/6. 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
$923
Typical prices: $784-$1,100
Air Canada
Fri 3/6Tue 3/10
SYD - PHL • 3 stops
Cheapest one-way
$643
Overall average: $1,165
Multiple Airlines
Sat 12/6
SYD - PHL • 3 stops
Top airlines
Air Canada
Cheapest • from $923 (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 29% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 43% price drop
February
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

Fri, Mar 6 - Tue, Mar 10
Air Canada Logo
11:20 am - 2:47 pmSYD-PHL
43h 27m3 stops
Air Canada Logo
3:30 pm - 8:35 amPHL-SYD
26h 05m2 stops
$923Air Canada
Find Deal
Fri, Mar 6 - Tue, Mar 10
Air Canada Logo
11:20 am - 10:56 pmSYD-PHL
27h 36m2 stops
Air Canada Logo
3:30 pm - 8:35 amPHL-SYD
26h 05m2 stops
$944Air Canada
Find Deal
Fri, Mar 6 - Tue, Mar 10
United Airlines Logo
2:00 pm - 9:38 pmSYD-PHL
23h 38m1 stop
United Airlines Logo
6:16 pm - 6:20 amPHL-SYD
45h 04m1 stop
$1,112United Airlines
Find Deal
Tue, Dec 2 - Mon, Dec 8
Air New Zealand Logo
7:15 pm - 4:41 pmSYD-PHL
61h 26m2 stops
Air New Zealand Logo
12:45 pm - 8:45 amPHL-SYD
28h 00m2 stops
$1,159Air New Zealand
Find Deal
Mon, Dec 1 - Wed, Dec 31
American Airlines Logo
11:20 am - 11:46 pmSYD-PHL
28h 26m1 stop
American Airlines Logo
3:41 pm - 9:00 amPHL-SYD
25h 19m1 stop
$1,382American Airlines
Find Deal
Mon, Dec 1 - Wed, Dec 31
American Airlines Logo
11:20 am - 5:44 pmSYD-PHL
22h 24m1 stop
American Airlines Logo
3:42 pm - 9:00 amPHL-SYD
25h 18m2 stops
$1,387American Airlines
Find Deal
Fri, Mar 6 - Tue, Mar 10
Air Canada Logo
11:20 am - 2:47 pmSYD-PHL
43h 27m3 stops
Air Canada Logo
3:30 pm - 8:35 amPHL-SYD
26h 05m2 stops
$1,458Air Canada
Find Deal
Mon, Dec 1 - Wed, Dec 31
Qantas Airways Logo
8:10 pm - 3:48 pmSYD-PHL
35h 38m2 stops
Qantas Airways Logo
4:32 pm - 1:00 pmPHL-SYD
28h 28m2 stops
$1,539Qantas Airways
Find Deal
Tue, Dec 2 - Mon, Dec 8
Qantas Airways Logo
11:20 am - 11:46 pmSYD-PHL
28h 26m1 stop
Qantas Airways Logo
3:13 pm - 9:00 amPHL-SYD
25h 47m1 stop
$1,960Qantas Airways
Find Deal
Tue, Dec 2 - Mon, Dec 8
United Airlines Logo
11:50 am - 4:41 pmSYD-PHL
20h 51m1 stop
United Airlines Logo
5:07 pm - 7:00 amPHL-SYD
45h 53m2 stops
$1,996United Airlines
Find Deal
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.

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

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

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 May, where the average cost of round-trip tickets is $1,975 and $1,907 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 29% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.

Good to know

Low seasonOctober
Cheapest flight$643
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly and prices are also 44% lower on average.
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 $643 for a one-way ticket and $923 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 925 reviews
7.0Food
8.2Crew
7.5Comfort
7.7Boarding
7.2Entertainment
Airline reviews

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

6.0 GoodSandipan, Oct 2025SYD - DFW
Read more Qantas Airways reviews

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.

Business class points redemption - good value for points paid, dubious value if out of your own pocket, domestic class business product okay for this length of flight. The flight left and arrived on time, crew were good, aircraft was a bit old and tired, but still miles ahead of their competitors in Virgin and Jetstar.

We were upgraded and after just a short delay in attending to a safety check we were on our way. Would definately fly Qantas International on their Dreamliner again.

I tried to check in online but was unable to do so. I stood in line for nearly two hours to check in. American Airlines was understaffed. When I finally got to the kiosk to check in, I was still unable to check in. No AA staff was available to help. Finally one of the airport security agents who was helping passengers became of lack of AA Staff told me: “I think the reason you can’t check in is that you are starting your name with an upper case letter when you write it. Just write it with all lower case letters.” That did allow me to check in. HOW COULD ANYONE POSSIBLY KNOW THAT IF THEY USE AN INITIAL UPPER CASE LETTER TO SPELL THEIR OWN NAME, AA WOULD NOT ALLOW THEM TO CHECK IN?????? Then I had to wait in line over half an hour again to drop off my baggage. Although I arrived at the airport 3 hours early, by the time I got to the gate, they had already started boarding.

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

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