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Cheap flights from Sydney to Philadelphia from $712

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sydney to Philadelphia departing on 20/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Sydney to Philadelphia

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
14:15 - 09:10SYD  Sydney Kingsford Smith-PHL Philadelphia
33h 55m3 stops Nadi Los Angeles Orlando
Multiple Airlines Logo
10:15 - 12:50PHL  Philadelphia-SYD Sydney Kingsford Smith
35h 35m3 stops Orlando Los Angeles Nadi
$1,522Multiple Airlines
Wed, 7 Oct - Wed, 21 Oct
Delta Logo
10:40 - 18:15SYD  Sydney Kingsford Smith-PHL Philadelphia
23h 35m2 stops Los Angeles Minneapolis St Paul
Delta Logo
06:00 - 08:30PHL  Philadelphia-SYD Sydney Kingsford Smith
34h 30m2 stops Detroit Metropolitan Wayne County Los Angeles
$1,599Delta
Tue, 12 Jan - Sun, 24 Jan
Delta Logo
10:40 - 20:37SYD  Sydney Kingsford Smith-PHL Philadelphia
25h 57m2 stops Los Angeles Atlanta Hartsfield-Jackson
Delta Logo
05:30 - 08:30PHL  Philadelphia-SYD Sydney Kingsford Smith
35h 00m2 stops Atlanta Hartsfield-Jackson Los Angeles
$1,599Delta
Thu, 14 Jan - Sun, 24 Jan
American Airlines Logo
10:10 - 19:53SYD  Sydney Kingsford Smith-PHL Philadelphia
24h 43m2 stops Los Angeles Las Vegas Harry Reid Intl
American Airlines Logo
17:30 - 08:05PHL  Philadelphia-SYD Sydney Kingsford Smith
23h 35m1 stop Los Angeles
$2,026American Airlines
Tue, 6 Oct - Sun, 18 Oct
American Airlines Logo
10:10 - 19:27SYD  Sydney Kingsford Smith-PHL Philadelphia
24h 17m2 stops Los Angeles Raleigh-Durham
American Airlines Logo
15:57 - 08:05PHL  Philadelphia-SYD Sydney Kingsford Smith
25h 08m1 stop Los Angeles
$2,026American Airlines
Wed, 7 Oct - Sun, 18 Oct
American Airlines Logo
10:10 - 18:50SYD  Sydney Kingsford Smith-PHL Philadelphia
23h 40m2 stops Los Angeles Dallas/Fort Worth
American Airlines Logo
16:28 - 08:05PHL  Philadelphia-SYD Sydney Kingsford Smith
24h 37m2 stops Dallas/Fort Worth Los Angeles
$2,026American Airlines
Tue, 6 Oct - Tue, 20 Oct
United Airlines Logo
11:20 - 17:21SYD  Sydney Kingsford Smith-PHL Philadelphia
21h 01m1 stop San Francisco
United Airlines Logo
18:55 - 07:00PHL  Philadelphia-SYD Sydney Kingsford Smith
45h 05m2 stops Chicago O'Hare Intl Houston George Bush Intcntl
$2,052United Airlines
Wed, 7 Oct - Sat, 24 Oct
United Airlines Logo
11:20 - 17:21SYD  Sydney Kingsford Smith-PHL Philadelphia
21h 01m1 stop San Francisco
United Airlines Logo
18:55 - 07:00PHL  Philadelphia-SYD Sydney Kingsford Smith
45h 05m2 stops Chicago O'Hare Intl Houston George Bush Intcntl
$2,052United Airlines
Mon, 5 Oct - Sat, 24 Oct
Qantas Airways Logo
11:20 - 20:16SYD  Sydney Kingsford Smith-PHL Philadelphia
24h 56m1 stop Los Angeles
Qantas Airways Logo
16:24 - 09:00PHL  Philadelphia-SYD Sydney Kingsford Smith
24h 36m1 stop Los Angeles
$2,535Qantas Airways
Mon, 11 Jan - Mon, 25 Jan
Qantas Airways Logo
10:10 - 16:19SYD  Sydney Kingsford Smith-PHL Philadelphia
21h 09m1 stop Los Angeles
Qantas Airways Logo
17:30 - 07:30PHL  Philadelphia-SYD Sydney Kingsford Smith
23h 00m1 stop Los Angeles
$2,961Qantas Airways
Tue, 20 Oct - Wed, 21 Oct

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Delta flights from Sydney to Philadelphia

Our best Delta deals on Sydney to Philadelphia flight tickets
Delta
11 Jan
SYD10:40Sydney Kingsford Smith
29h 00m
2 stops
PHL23:40Philadelphia
25 Jan
PHL08:25Philadelphia
32h 05m
2 stops
SYD08:30Sydney Kingsford Smith
$1,599
Delta
11 Jan
SYD10:40Sydney Kingsford Smith
30h 11m
2 stops
PHL00:51Philadelphia
22 Jan
PHL05:30Philadelphia
35h 00m
2 stops
SYD08:30Sydney Kingsford Smith
$2,229
Delta
12 Jan
SYD10:40Sydney Kingsford Smith
23h 35m
2 stops
PHL18:15Philadelphia
23 Jan
PHL18:13Philadelphia
46h 17m
2 stops
SYD08:30Sydney Kingsford Smith
$2,540

Air New Zealand flights from Sydney to Philadelphia

Our best Air New Zealand deals on Sydney to Philadelphia flight tickets
Air New Zealand
20 Oct
SYD09:55Sydney Kingsford Smith
27h 36m
2 stops
PHL22:31Philadelphia
21 Oct
PHL06:16Philadelphia
35h 29m
2 stops
SYD08:45Sydney Kingsford Smith
$1,939
Air New Zealand
17 Sept
SYD09:55Sydney Kingsford Smith
26h 36m
2 stops
PHL22:31Philadelphia
20 Sept
PHL09:27Philadelphia
33h 18m
2 stops
SYD08:45Sydney Kingsford Smith
$2,244
Air New Zealand
7 Sept
SYD07:50Sydney Kingsford Smith
37h 59m
2 stops
PHL07:49Philadelphia
23 Sept
PHL17:07Philadelphia
25h 38m
2 stops
SYD08:45Sydney Kingsford Smith
$2,311

momondo Fare Finder

 
Customise your flight search to find flights from Sydney to Philadelphia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 78,305 searches. Data last updated 10 August 2026.
Use the filters below to find and compare flights from Sydney to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Wed 7/10

14:15-09:10

3 stops33h 55m

Philadelphia

Wed 21/10

10:15-12:50

3 stops35h 35m

$1,522

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Tue 12/1

10:40-18:15

2 stops23h 35m

Philadelphia

Sun 24/1

06:00-08:30

2 stops34h 30m

$1,599

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Thu 14/1

10:40-20:37

2 stops25h 57m

Philadelphia

Sun 24/1

05:30-08:30

2 stops35h 00m

$1,599

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Tue 6/10

10:10-19:53

2 stops24h 43m

Philadelphia

Sun 18/10

17:30-08:05

1 stop23h 35m

$2,026

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Wed 7/10

10:10-19:27

2 stops24h 17m

Philadelphia

Sun 18/10

15:57-08:05

1 stop25h 08m

$2,026

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Tue 6/10

10:10-18:50

2 stops23h 40m

Philadelphia

Tue 20/10

16:28-08:05

2 stops24h 37m

$2,026

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Wed 7/10

11:20-17:21

1 stop21h 01m

Philadelphia

Sat 24/10

18:55-07:00

2 stops45h 05m

$2,052

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Mon 5/10

11:20-17:21

1 stop21h 01m

Philadelphia

Sat 24/10

18:55-07:00

2 stops45h 05m

$2,052

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Mon 11/1

11:20-20:16

1 stop24h 56m

Philadelphia

Mon 25/1

16:24-09:00

1 stop24h 36m

$2,535
Fastest return journey

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Tue 20/10

10:10-16:19

1 stop21h 09m

Philadelphia

Wed 21/10

17:30-07:30

1 stop23h 00m

$2,961

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Philadelphia from

How to get the cheapest flight ticket from Sydney to Philadelphia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Philadelphia?

If you aren’t able to travel to Philadelphia during the month of July, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $1,585.

Can stopping save me money on Sydney to Philadelphia flights?

You could potentially save up to 39% on your flight if you consider stops on a Sydney to Philadelphia flight.

How have Sydney to Philadelphia flight prices changed over time?

As of August 2026, prices for Sydney to Philadelphia flights are approximately 19% cheaper when compared to flights at the same time last year.

When to book flights from Sydney to Philadelphia

Are you open to changing your travel dates? Check out the ideal times to fly from Sydney to Philadelphia according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Sydney to Philadelphia (SYD to PHL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sydney to Philadelphia

Fastest flight time

28h 35m

Direct flights

None
The fastest flight from Sydney to Philadelphia takes 28h 35m
There are no direct flights from Sydney to Philadelphia. There are no popular flight routes from Sydney to Philadelphia.
Search flight deals

Frequently asked questions about flying from Sydney to Philadelphia

  • How far is Sydney Kingsford Smith to Philadelphia by plane?

    Sydney Kingsford Smith and Philadelphia are 15874.2 km apart from one another. A reasonable flight in good conditions will take 28h 35m.

  • When did momondo last update prices for flights from Sydney Kingsford Smith Airport to Philadelphia Airport?

    Prices for flights from Sydney Kingsford Smith Airport to Philadelphia Airport refresh daily.

  • How many operators does momondo search for flights from Sydney Kingsford Smith Airport to Philadelphia Airport?

  • How old do you have to be to fly from Sydney Kingsford Smith Airport to Philadelphia Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Sydney Kingsford Smith Airport to Philadelphia Airport.

  • What documentation or ID do you need to fly to Philadelphia Airport?

    The necessary travel and health documents for your Philadelphia Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Sydney to Philadelphia?

Best airlines flying from Sydney to Philadelphia

Compare and see reviews for airlines that fly from Sydney to Philadelphia with momondo
Airline
Rating
Free cancellation
Price
United AirlinesPriceFrom $603Free cancellationRating
7.4
10,098 reviews
Search United Airlines flights
Qantas AirwaysPriceFrom $1,546Free cancellationRating
7.5
1,081 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $1,699Free cancellationRating
7.1
11,899 reviews
Search American Airlines flights

Travelling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Rehoboth Beach
Elkton
Cherry Hill

Why use momondo?

Why should I use momondo to find a flight deal from Sydney to Philadelphia?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Philadelphia from Sydney.

Can I find flights from Sydney to Philadelphia with flexible booking policies on momondo?

Flights from Sydney to Philadelphia with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Sydney to Philadelphia?

momondo provides multiple filters to help you find the best flight to Philadelphia from Sydney. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Sydney to Philadelphia right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Philadelphia, momondo offers a useful price alert feature which will track prices for flights to Philadelphia from Sydney and alert you when they change.

An easier way to manage your Philadelphia trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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