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$1,102 Cheap flights to Philadelphia

1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Australia to Philadelphia

Cheap return flights

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American Airlines Logo
11:20 - 05:10SYD  Sydney Kingsford Smith-PHL Philadelphia
33h 50m2 stops Los Angeles Phoenix Sky Harbor Intl
American Airlines Logo
05:00 - 06:55PHL  Philadelphia-SYD Sydney Kingsford Smith
33h 55m1 stop Dallas/Fort Worth
$1,654American Airlines
Thu, 5 Nov - Mon, 9 Nov
American Airlines Logo
11:10 - 05:10SYD  Sydney Kingsford Smith-PHL Philadelphia
34h 00m2 stops Los Angeles Phoenix Sky Harbor Intl
American Airlines Logo
05:00 - 06:55PHL  Philadelphia-SYD Sydney Kingsford Smith
33h 55m1 stop Dallas/Fort Worth
$1,658American Airlines
Thu, 5 Nov - Mon, 9 Nov
Multiple Airlines Logo
09:10 - 09:05SYD  Sydney Kingsford Smith-PHL Philadelphia
37h 55m2 stops Los Angeles Orlando
Multiple Airlines Logo
08:41 - 07:05PHL  Philadelphia-SYD Sydney Kingsford Smith
32h 24m2 stops Atlanta Hartsfield-Jackson Los Angeles
$1,676Multiple Airlines
Sat, 19 Sep - Sat, 26 Sep
Delta Logo
10:00 - 23:12MEL  Melbourne-PHL Philadelphia
27h 12m2 stops Los Angeles Detroit Metropolitan Wayne County
Delta Logo
07:00 - 08:50PHL  Philadelphia-MEL Melbourne
34h 50m2 stops Seattle/Tacoma Intl Los Angeles
$1,793Delta
Wed, 30 Sep - Wed, 14 Oct
Qantas Airways Logo
17:05 - 18:42MEL  Melbourne-PHL Philadelphia
39h 37m2 stops Sydney Kingsford Smith Los Angeles
Qantas Airways Logo
13:10 - 12:40PHL  Philadelphia-MEL Melbourne
33h 30m2 stops Los Angeles Sydney Kingsford Smith
$1,885Qantas Airways
Wed, 9 Sep - Tue, 22 Sep
Qantas Airways Logo
06:30 - 16:19MEL  Melbourne-PHL Philadelphia
24h 49m2 stops Sydney Kingsford Smith Los Angeles
Qantas Airways Logo
18:45 - 11:30PHL  Philadelphia-MEL Melbourne
25h 45m2 stops Dallas/Fort Worth Brisbane
$1,919Qantas Airways
Mon, 12 Oct - Sat, 24 Oct
United Airlines Logo
11:55 - 23:20MEL  Melbourne-PHL Philadelphia
26h 25m2 stops San Francisco Denver Intl
United Airlines Logo
13:24 - 09:15PHL  Philadelphia-MEL Melbourne
28h 51m2 stops Chicago O'Hare Intl San Francisco
$2,216United Airlines
Mon, 5 Oct - Mon, 12 Oct
United Airlines Logo
11:55 - 21:15MEL  Melbourne-PHL Philadelphia
24h 20m1 stop San Francisco
United Airlines Logo
09:27 - 09:15PHL  Philadelphia-MEL Melbourne
32h 48m1 stop San Francisco
$2,216United Airlines
Mon, 5 Oct - Mon, 12 Oct
Qatar Airways Logo
22:00 - 14:50ADL  Adelaide-PHL Philadelphia
32h 20m1 stop Doha Hamad Intl
Qatar Airways Logo
20:45 - 15:55PHL  Philadelphia-ADL Adelaide
27h 40m1 stop Doha Hamad Intl
$2,504Qatar Airways
Thu, 5 Nov - Mon, 9 Nov
Qatar Airways Logo
22:00 - 14:50ADL  Adelaide-PHL Philadelphia
32h 20m1 stop Doha Hamad Intl
Qatar Airways Logo
20:45 - 15:55PHL  Philadelphia-ADL Adelaide
27h 40m1 stop Doha Hamad Intl
$2,508Qatar Airways
Thu, 5 Nov - Mon, 9 Nov

momondo Fare Finder

 
Use the filters below to find and compare flights to Philadelphia that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Thu 5/11

11:20-05:10

2 stops33h 50m

Philadelphia

Mon 9/11

05:00-06:55

1 stop33h 55m

$1,654

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Thu 5/11

11:10-05:10

2 stops34h 00m

Philadelphia

Mon 9/11

05:00-06:55

1 stop33h 55m

$1,658

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Sat 19/9

09:10-09:05

2 stops37h 55m

Philadelphia

Sat 26/9

08:41-07:05

2 stops32h 24m

$1,676

MelbournePhiladelphia

MEL Melbourne - PHL Philadelphia

MELPHL

Melbourne

Wed 30/9

10:00-23:12

2 stops27h 12m

Philadelphia

Wed 14/10

07:00-08:50

2 stops34h 50m

$1,793

MelbournePhiladelphia

MEL Melbourne - PHL Philadelphia

MELPHL

Melbourne

Wed 9/9

17:05-18:42

2 stops39h 37m

Philadelphia

Tue 22/9

13:10-12:40

2 stops33h 30m

$1,885
Fastest return journey

MelbournePhiladelphia

MEL Melbourne - PHL Philadelphia

MELPHL

Melbourne

Mon 12/10

06:30-16:19

2 stops24h 49m

Philadelphia

Sat 24/10

18:45-11:30

2 stops25h 45m

$1,919

MelbournePhiladelphia

MEL Melbourne - PHL Philadelphia

MELPHL

Melbourne

Mon 5/10

11:55-23:20

2 stops26h 25m

Philadelphia

Mon 12/10

13:24-09:15

2 stops28h 51m

$2,216

MelbournePhiladelphia

MEL Melbourne - PHL Philadelphia

MELPHL

Melbourne

Mon 5/10

11:55-21:15

1 stop24h 20m

Philadelphia

Mon 12/10

09:27-09:15

1 stop32h 48m

$2,216

AdelaidePhiladelphia

ADL Adelaide - PHL Philadelphia

ADLPHL

Adelaide

Thu 5/11

22:00-14:50

1 stop32h 20m

Philadelphia

Mon 9/11

20:45-15:55

1 stop27h 40m

$2,504

AdelaidePhiladelphia

ADL Adelaide - PHL Philadelphia

ADLPHL

Adelaide

Thu 5/11

22:00-14:50

1 stop32h 20m

Philadelphia

Mon 9/11

20:45-15:55

1 stop27h 40m

$2,508

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

Philadelphia flights insights and trends

Explore insights for your Philadelphia flight to craft the best travel plan

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 $1,563.

Cheapest flights to Philadelphia

Find the cheapest flights to Philadelphia from your nearest city or airport
Find flights from Sydney to Philadelphia
CHEAPEST MONTH TO FLY TO PHILADELPHIA FROM SYDNEYJuly28% cheaperFlying from Sydney to Philadelphia costs on average just $1,460 in July
MOST EXPENSIVE MONTH TO FLY TO PHILADELPHIA FROM SYDNEYSeptember51% more expensiveIt costs about $3,073 for flights to Philadelphia from Sydney in September
MOST POPULAR MONTH TO FLY TO PHILADELPHIA FROM SYDNEYJuly475% more users visitedMore momondo users searched in flights to Philadelphia from Sydney in July than any other month

Cheap Philadelphia flight deals and tips

Summary info about Philadelphia flight prices, duration and airlines

Best One-Way Price

$1,102

Best Round-Trip Price

$1,654

Fastest flight time

39h 06m

Popular in

August
The best one-way flight price to Philadelphia from Australia in the last 5 days is $1,102 (Sydney Kingsford Smith to Philadelphia).
Search Deals
The best return flight price to Philadelphia from Australia in the last 5 days is $1,654 (Sydney Kingsford Smith to Philadelphia).
Search Deals
The fastest flight to Philadelphia from Australia takes 39h 06m (Sydney Kingsford Smith to Philadelphia).
Search Deals
August has the highest demand for flights to Philadelphia, with a 11% price increase on average.
Search Deals

Frequently asked questions about flying to Philadelphia

When is it best to fly to Philadelphia to go sightseeing?

Most momondo users would consider April, May, and September to be the best times to fly to Philadelphia to see sights like University of Pennsylvania. Typically, the weather in Philadelphia is under 70 degrees Fahrenheit (21°C) but still warm and the chance of rain is only moderate.

Is there an alternative airport near Philadelphia?

Those flying to Philadelphia could potentially find better pricing at Philadelphia Airport (11 km from Philadelphia city centre), Trenton-Mercer Airport (46 km from Philadelphia city centre), Greater Wilmington Airport (49 km from Philadelphia city centre), Atlantic City Airport (74 km from Philadelphia city centre) or Newark Airport (117 km from Philadelphia city centre) depending on the month and departure airport.

Is there a cheaper alternative to flying into Philadelphia?

New Windsor Stewart Airport has an average price of $163 per person and is typically the cheapest airport to fly into when visiting Philadelphia. This average price does vary based on departure city. Try momondo’s Airport-to-Airport Pricing Tool to find the cheapest flight.

What is the absolute cheapest flight to Philadelphia?

Users booking trips to Philadelphia from Atlanta found flights 83% cheaper than the average price of flights to Philadelphia. To find the cheapest price to Philadelphia from your area, use momondo’s Airport-to-Airport Pricing Tool.

When did momondo last update prices for flights to Philadelphia Airport?

Prices for flights to Philadelphia Airport are updated daily.

How many operators does momondo search for flights to Philadelphia Airport?

The number of operators available for flights to Philadelphia Airport is 4 as of August 2026.

How old do you have to be to fly to Philadelphia Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel 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.

Travelling to a place near Philadelphia?

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

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights to Philadelphia. Millions of users trust and use momondo every year so you are in good company.

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

All flight searches to Philadelphia on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights to Philadelphia?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as filter your options to help you make an informed choice when booking flights to Philadelphia.

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

Price alerts on flights to Philadelphia are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Find better results for your trip to Philadelphia

Popular Flights to Philadelphia

Sydney Kingsford Smith to Philadelphia Flightsfrom $1,180
Melbourne to Philadelphia Flightsfrom $1,284
Brisbane to Philadelphia Flightsfrom $1,625
Perth to Philadelphia Flightsfrom $1,953
Darwin to Philadelphia Flightsfrom $2,288
Adelaide to Philadelphia Flightsfrom $1,775