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Cheap flights from Sydney to Philadelphia from $781

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 10/6. 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
1 adult, Economy, 0 bags

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Find the cheapest flights from Sydney to Philadelphia

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
13:15 - 11:11
SYD
-
PHL
35h 56m
3 stops
Multiple Airlines Logo
10:40 - 22:10
PHL
-
SYD
45h 30m
3 stops
$1,554Multiple Airlines
Tue, 19 May - Tue, 26 May
Multiple Airlines Logo
13:15 - 11:40
SYD
-
PHL
36h 25m
3 stops
Multiple Airlines Logo
07:00 - 22:10
PHL
-
SYD
49h 10m
3 stops
$1,782Multiple Airlines
Fri, 1 May - Mon, 11 May
Delta Logo
09:15 - 22:12
SYD
-
PHL
26h 57m
2 stops
Delta Logo
10:32 - 06:50
PHL
-
SYD
30h 18m
2 stops
$1,998Delta
Mon, 18 May - Mon, 25 May
Delta Logo
09:15 - 20:53
SYD
-
PHL
25h 38m
2 stops
Delta Logo
09:45 - 06:50
PHL
-
SYD
31h 05m
2 stops
$2,001Delta
Mon, 4 May - Mon, 11 May
Delta Logo
09:15 - 19:18
SYD
-
PHL
24h 03m
2 stops
Delta Logo
09:45 - 06:50
PHL
-
SYD
31h 05m
2 stops
$2,061Delta
Fri, 1 May - Mon, 11 May
Delta Logo
09:15 - 00:59
SYD
-
PHL
29h 44m
2 stops
Delta Logo
16:06 - 06:50
PHL
-
SYD
24h 44m
2 stops
$2,069Delta
Thu, 30 Apr - Thu, 7 May
Multiple Airlines Logo
17:50 - 09:10
SYD
-
PHL
29h 20m
1 stop
Multiple Airlines Logo
11:35 - 07:30
PHL
-
SYD
29h 55m
2 stops
$2,077Multiple Airlines
Sat, 6 Jun - Wed, 5 Aug
Multiple Airlines Logo
20:45 - 11:47
SYD
-
PHL
53h 02m
3 stops
Multiple Airlines Logo
08:30 - 18:50
PHL
-
SYD
44h 20m
3 stops
$2,317Multiple Airlines
Thu, 18 Jun - Sun, 28 Jun
Delta Logo
09:15 - 22:45
SYD
-
PHL
27h 30m
2 stops
Delta Logo
19:05 - 06:50
PHL
-
SYD
45h 45m
2 stops
$2,348Delta
Mon, 8 Jun - Sat, 20 Jun
Delta Logo
09:15 - 23:59
SYD
-
PHL
28h 44m
2 stops
Delta Logo
07:23 - 06:50
PHL
-
SYD
33h 27m
2 stops
$2,352Delta
Thu, 11 Jun - Sun, 21 Jun

Delta flights from Sydney to Philadelphia

Our best Delta deals on Sydney to Philadelphia flight tickets
Delta
18 May
SYD09:15Sydney Kingsford Smith
26h 57m
2 stops
PHL22:12Philadelphia
25 May
PHL10:32Philadelphia
30h 18m
2 stops
SYD06:50Sydney Kingsford Smith
$1,998
Delta
4 May
SYD09:15Sydney Kingsford Smith
25h 38m
2 stops
PHL20:53Philadelphia
11 May
PHL09:45Philadelphia
31h 05m
2 stops
SYD06:50Sydney Kingsford Smith
$2,001
Delta
1 May
SYD09:15Sydney Kingsford Smith
24h 03m
2 stops
PHL19:18Philadelphia
11 May
PHL09:45Philadelphia
31h 05m
2 stops
SYD06:50Sydney Kingsford Smith
$2,061

United Airlines flights from Sydney to Philadelphia

Our best United Airlines deals on Sydney to Philadelphia flight tickets
United Airlines
8 June
SYD10:20Sydney Kingsford Smith
20h 57m
1 stop
PHL17:17Philadelphia
20 June
PHL19:45Philadelphia
45h 10m
2 stops
SYD06:55Sydney Kingsford Smith
$2,468
United Airlines
19 May
SYD10:20Sydney Kingsford Smith
20h 39m
1 stop
PHL16:59Philadelphia
26 May
PHL08:00Philadelphia
32h 55m
2 stops
SYD06:55Sydney Kingsford Smith
$2,472
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
$2,481

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 7 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

Tue 19/5

13:15-11:11

3 stops35h 56m

Philadelphia

Tue 26/5

10:40-22:10

3 stops45h 30m

$1,554

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 1/5

13:15-11:40

3 stops36h 25m

Philadelphia

Mon 11/5

07:00-22:10

3 stops49h 10m

$1,782

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 18/5

09:15-22:12

2 stops26h 57m

Philadelphia

Mon 25/5

10:32-06:50

2 stops30h 18m

$1,998

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 4/5

09:15-20:53

2 stops25h 38m

Philadelphia

Mon 11/5

09:45-06:50

2 stops31h 05m

$2,001

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 1/5

09:15-19:18

2 stops24h 03m

Philadelphia

Mon 11/5

09:45-06:50

2 stops31h 05m

$2,061
Fastest return journey

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 30/4

09:15-00:59

2 stops29h 44m

Philadelphia

Thu 7/5

16:06-06:50

2 stops24h 44m

$2,069

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sat 6/6

17:50-09:10

1 stop29h 20m

Philadelphia

Wed 5/8

11:35-07:30

2 stops29h 55m

$2,077

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 18/6

20:45-11:47

3 stops53h 02m

Philadelphia

Sun 28/6

08:30-18:50

3 stops44h 20m

$2,317

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 8/6

09:15-22:45

2 stops27h 30m

Philadelphia

Sat 20/6

19:05-06:50

2 stops45h 45m

$2,348

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 11/6

09:15-23:59

2 stops28h 44m

Philadelphia

Sun 21/6

07:23-06:50

2 stops33h 27m

$2,352

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 $1,665.

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 $2,115 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 $1,667 on momondo.

Can stopping save me money on Sydney to Philadelphia flights?

You could potentially save up to 3% 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

36h 25m

Direct flights

None
The fastest flight from Sydney to Philadelphia takes 36h 25m
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 36h 25m.

  • 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 $616Free cancellationRating
7.4
9,549 reviews
Search United Airlines flights
Air CanadaPriceFrom $1,390Free cancellationRating
7.1
10,897 reviews
Search Air Canada flights
Qantas AirwaysPriceFrom $1,594Free cancellationRating
7.5
1,017 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $1,735Free cancellationRating
7.1
11,550 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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