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Cheap flights from Sydney to Philadelphia from $1,171

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 17/10. 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.
United Airlines Logo
10:20 - 20:55
SYD
-
PHL
24h 35m
1 stop
United Airlines Logo
18:36 - 06:55
PHL
-
SYD
22h 19m
1 stop
$1,436United Airlines
Mon, 17 Aug - Wed, 2 Sep
United Airlines Logo
10:20 - 19:25
SYD
-
PHL
23h 05m
2 stops
United Airlines Logo
18:36 - 06:55
PHL
-
SYD
22h 19m
1 stop
$1,505United Airlines
Sat, 22 Aug - Wed, 2 Sep
United Airlines Logo
09:30 - 21:19
SYD
-
PHL
25h 49m
2 stops
United Airlines Logo
15:05 - 07:00
PHL
-
SYD
25h 55m
2 stops
$1,506United Airlines
Fri, 31 Jul - Mon, 17 Aug
United Airlines Logo
10:20 - 23:03
SYD
-
PHL
26h 43m
2 stops
United Airlines Logo
18:36 - 06:55
PHL
-
SYD
22h 19m
1 stop
$1,509United Airlines
Wed, 5 Aug - Thu, 10 Sep
United Airlines Logo
10:20 - 01:23
SYD
-
PHL
29h 03m
1 stop
United Airlines Logo
18:36 - 06:55
PHL
-
SYD
22h 19m
1 stop
$1,515United Airlines
Fri, 31 Jul - Mon, 17 Aug
Multiple Airlines Logo
06:05 - 11:40
SYD
-
PHL
43h 35m
3 stops
Multiple Airlines Logo
08:30 - 22:25
PHL
-
SYD
47h 55m
3 stops
$1,519Multiple Airlines
Wed, 5 Aug - Tue, 18 Aug
United Airlines Logo
09:30 - 19:25
SYD
-
PHL
23h 55m
2 stops
United Airlines Logo
18:36 - 06:55
PHL
-
SYD
22h 19m
1 stop
$1,574United Airlines
Sat, 22 Aug - Fri, 4 Sep
Multiple Airlines Logo
13:15 - 05:39
SYD
-
PHL
30h 24m
3 stops
Multiple Airlines Logo
12:54 - 11:50
PHL
-
SYD
32h 56m
3 stops
$1,630Multiple Airlines
Thu, 30 Jul - Mon, 17 Aug
Delta Logo
09:15 - 23:56
SYD
-
PHL
28h 41m
2 stops
Delta Logo
17:20 - 06:50
PHL
-
SYD
23h 30m
2 stops
$1,665Delta
Thu, 20 Aug - Tue, 1 Sep
United Airlines Logo
10:20 - 19:26
SYD
-
PHL
24h 06m
2 stops
United Airlines Logo
19:53 - 07:00
PHL
-
SYD
43h 07m
1 stop
$1,667United Airlines
Wed, 28 Oct - Sat, 7 Nov

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United Airlines flights from Sydney to Philadelphia

Our best United Airlines deals on Sydney to Philadelphia flight tickets
United Airlines
17 Aug
SYD10:20Sydney Kingsford Smith
24h 35m
1 stop
PHL20:55Philadelphia
31 Aug
PHL15:48Philadelphia
25h 07m
2 stops
SYD06:55Sydney Kingsford Smith
$1,436
United Airlines
22 Aug
SYD09:30Sydney Kingsford Smith
23h 55m
2 stops
PHL19:25Philadelphia
1 Sept
PHL15:48Philadelphia
25h 12m
2 stops
SYD07:00Sydney Kingsford Smith
$1,505
United Airlines
31 July
SYD10:20Sydney Kingsford Smith
29h 03m
1 stop
PHL01:23Philadelphia
17 Aug
PHL18:36Philadelphia
22h 19m
1 stop
SYD06:55Sydney Kingsford Smith
$1,506

Delta flights from Sydney to Philadelphia

Our best Delta deals on Sydney to Philadelphia flight tickets
Delta
20 Aug
SYD09:15Sydney Kingsford Smith
28h 41m
2 stops
PHL23:56Philadelphia
2 Sept
PHL14:31Philadelphia
26h 19m
2 stops
SYD06:50Sydney Kingsford Smith
$1,665
Delta
20 Aug
SYD09:15Sydney Kingsford Smith
37h 33m
2 stops
PHL08:48Philadelphia
3 Sept
PHL17:20Philadelphia
23h 30m
2 stops
SYD06:50Sydney Kingsford Smith
$1,714
Delta
1 Aug
SYD09:15Sydney Kingsford Smith
28h 06m
2 stops
PHL23:21Philadelphia
11 Aug
PHL10:43Philadelphia
30h 07m
2 stops
SYD06:50Sydney Kingsford Smith
$1,715

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 5 July 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 - PHL

SYDPHL

Sydney Kingsford Smith

Mon 17/8

10:20-20:55

1 stop24h 35m

Philadelphia

Wed 2/9

18:36-06:55

1 stop22h 19m

$1,436
Fastest return journey

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sat 22/8

10:20-19:25

2 stops23h 05m

Philadelphia

Wed 2/9

18:36-06:55

1 stop22h 19m

$1,505

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 31/7

09:30-21:19

2 stops25h 49m

Philadelphia

Mon 17/8

15:05-07:00

2 stops25h 55m

$1,506

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 5/8

10:20-23:03

2 stops26h 43m

Philadelphia

Thu 10/9

18:36-06:55

1 stop22h 19m

$1,509

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 31/7

10:20-01:23

1 stop29h 03m

Philadelphia

Mon 17/8

18:36-06:55

1 stop22h 19m

$1,515

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 5/8

06:05-11:40

3 stops43h 35m

Philadelphia

Tue 18/8

08:30-22:25

3 stops47h 55m

$1,519

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sat 22/8

09:30-19:25

2 stops23h 55m

Philadelphia

Fri 4/9

18:36-06:55

1 stop22h 19m

$1,574

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 30/7

13:15-05:39

3 stops30h 24m

Philadelphia

Mon 17/8

12:54-11:50

3 stops32h 56m

$1,630

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 20/8

09:15-23:56

2 stops28h 41m

Philadelphia

Tue 1/9

17:20-06:50

2 stops23h 30m

$1,665

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 28/10

10:20-19:26

2 stops24h 06m

Philadelphia

Sat 7/11

19:53-07:00

1 stop43h 07m

$1,667

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 typical price of a round-trip flight between Sydney and Philadelphia?

What is the cheapest month to fly to Philadelphia?

If you aren’t able to travel to Philadelphia during the month of November, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $1,800.

Can stopping save me money on Sydney to Philadelphia flights?

You could potentially save up to 19% 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 July 2026, prices for Sydney to Philadelphia flights are approximately 3% 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

23h 28m

Direct flights

None
The fastest flight from Sydney to Philadelphia takes 23h 28m
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 23h 28m.

  • 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
Qantas AirwaysPriceFrom $1,582Free cancellationRating
7.5
1,056 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $1,728Free cancellationRating
7.1
11,769 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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