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Cheap flights from Sydney to Philadelphia from $829

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 18/6. 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

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
17:50 - 05:37
SYD
-
PHL
49h 47m
2 stops
Multiple Airlines Logo
10:40 - 07:30
PHL
-
SYD
30h 50m
2 stops
$1,747Multiple Airlines
Mon, 1 Jun - Mon, 8 Jun
Multiple Airlines Logo
09:10 - 05:37
SYD
-
PHL
34h 27m
2 stops
Multiple Airlines Logo
06:30 - 07:05
PHL
-
SYD
34h 35m
2 stops
$1,752Multiple Airlines
Tue, 2 Jun - Tue, 9 Jun
Multiple Airlines Logo
17:50 - 14:15
SYD
-
PHL
34h 25m
2 stops
Multiple Airlines Logo
10:40 - 07:05
PHL
-
SYD
30h 25m
2 stops
$1,756Multiple Airlines
Mon, 1 Jun - Mon, 8 Jun
Multiple Airlines Logo
17:50 - 09:10
SYD
-
PHL
29h 20m
1 stop
Multiple Airlines Logo
10:40 - 07:30
PHL
-
SYD
30h 50m
2 stops
$1,814Multiple Airlines
Mon, 1 Jun - Mon, 8 Jun
Multiple Airlines Logo
17:50 - 09:10
SYD
-
PHL
29h 20m
1 stop
Multiple Airlines Logo
08:30 - 07:30
PHL
-
SYD
33h 00m
2 stops
$1,853Multiple Airlines
Tue, 2 Jun - Tue, 9 Jun
Multiple Airlines Logo
17:50 - 09:10
SYD
-
PHL
29h 20m
1 stop
Multiple Airlines Logo
19:50 - 07:30
PHL
-
SYD
45h 40m
1 stop
$1,909Multiple Airlines
Mon, 1 Jun - Mon, 8 Jun
Multiple Airlines Logo
17:50 - 09:10
SYD
-
PHL
29h 20m
1 stop
Multiple Airlines Logo
20:35 - 07:30
PHL
-
SYD
44h 55m
2 stops
$2,200Multiple Airlines
Mon, 1 Jun - Mon, 8 Jun
Multiple Airlines Logo
17:50 - 09:10
SYD
-
PHL
29h 20m
1 stop
Multiple Airlines Logo
19:50 - 07:30
PHL
-
SYD
45h 40m
1 stop
$2,257Multiple Airlines
Mon, 1 Jun - Mon, 8 Jun
Delta Logo
09:15 - 23:59
SYD
-
PHL
28h 44m
2 stops
Delta Logo
14:33 - 06:50
PHL
-
SYD
26h 17m
2 stops
$2,316Delta
Thu, 11 Jun - Sun, 21 Jun
United Airlines Logo
10:20 - 01:29
SYD
-
PHL
29h 09m
1 stop
United Airlines Logo
18:23 - 06:55
PHL
-
SYD
22h 32m
1 stop
$2,447United Airlines
Thu, 11 Jun - Sun, 21 Jun

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Delta flights from Sydney to Philadelphia

Our best Delta deals on Sydney to Philadelphia flight tickets
Delta
11 June
SYD09:15Sydney Kingsford Smith
28h 44m
2 stops
PHL23:59Philadelphia
21 June
PHL14:33Philadelphia
26h 17m
2 stops
SYD06:50Sydney Kingsford Smith
$2,316
Delta
18 June
SYD09:15Sydney Kingsford Smith
34h 53m
2 stops
PHL06:08Philadelphia
28 June
PHL06:25Philadelphia
34h 25m
2 stops
SYD06:50Sydney Kingsford Smith
$2,694

United Airlines flights from Sydney to Philadelphia

Our best United Airlines deals on Sydney to Philadelphia flight tickets
United Airlines
11 June
SYD10:20Sydney Kingsford Smith
29h 09m
1 stop
PHL01:29Philadelphia
21 June
PHL18:23Philadelphia
22h 32m
1 stop
SYD06:55Sydney Kingsford Smith
$2,447
United Airlines
11 June
SYD09:30Sydney Kingsford Smith
23h 25m
2 stops
PHL18:55Philadelphia
21 June
PHL18:23Philadelphia
22h 32m
1 stop
SYD06:55Sydney Kingsford Smith
$2,454
United Airlines
2 May
SYD09:30Sydney Kingsford Smith
23h 28m
2 stops
PHL18:58Philadelphia
6 May
PHL13:26Philadelphia
27h 34m
3 stops
SYD07:00Sydney Kingsford Smith
$3,601

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 18 April 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 1/6

17:50-05:37

2 stops49h 47m

Philadelphia

Mon 8/6

10:40-07:30

2 stops30h 50m

$1,747

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 2/6

09:10-05:37

2 stops34h 27m

Philadelphia

Tue 9/6

06:30-07:05

2 stops34h 35m

$1,752

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 1/6

17:50-14:15

2 stops34h 25m

Philadelphia

Mon 8/6

10:40-07:05

2 stops30h 25m

$1,756

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 1/6

17:50-09:10

1 stop29h 20m

Philadelphia

Mon 8/6

10:40-07:30

2 stops30h 50m

$1,814

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 2/6

17:50-09:10

1 stop29h 20m

Philadelphia

Tue 9/6

08:30-07:30

2 stops33h 00m

$1,853

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 1/6

17:50-09:10

1 stop29h 20m

Philadelphia

Mon 8/6

19:50-07:30

1 stop45h 40m

$1,909

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 1/6

17:50-09:10

1 stop29h 20m

Philadelphia

Mon 8/6

20:35-07:30

2 stops44h 55m

$2,200

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 1/6

17:50-09:10

1 stop29h 20m

Philadelphia

Mon 8/6

19:50-07:30

1 stop45h 40m

$2,257

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 11/6

09:15-23:59

2 stops28h 44m

Philadelphia

Sun 21/6

14:33-06:50

2 stops26h 17m

$2,316
Fastest return journey

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 11/6

10:20-01:29

1 stop29h 09m

Philadelphia

Sun 21/6

18:23-06:55

1 stop22h 32m

$2,447

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 October, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $1,605.

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

You are more likely to see cheaper flights to Philadelphia from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around $2,039 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from Sydney for as low as $1,607 on momondo.

Can stopping save me money on Sydney to Philadelphia flights?

You could potentially save up to 1% 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 April 2026, prices for Sydney to Philadelphia flights are approximately 10% 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 44m

Direct flights

None
The fastest flight from Sydney to Philadelphia takes 23h 44m
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 44m.

  • 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 $593Free cancellationRating
7.4
9,604 reviews
Search United Airlines flights
Air CanadaPriceFrom $1,296Free cancellationRating
7.1
10,938 reviews
Search Air Canada flights
Qantas AirwaysPriceFrom $1,537Free cancellationRating
7.5
1,020 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $1,672Free cancellationRating
7.1
11,612 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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