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$708 Cheap flights to Philadelphia

1 adult
1 adult, Economy, 0 bags

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Cheap return flights

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Delta Logo
09:40 - 20:25SYD  Sydney Kingsford Smith-PHL Philadelphia
25h 45m2 stops Los Angeles Atlanta Hartsfield-Jackson
Delta Logo
11:36 - 08:30PHL  Philadelphia-SYD Sydney Kingsford Smith
28h 54m2 stops Atlanta Hartsfield-Jackson Los Angeles
$1,071Delta
Wed, 28 Oct - Wed, 4 Nov
Delta Logo
10:40 - 22:56SYD  Sydney Kingsford Smith-PHL Philadelphia
28h 16m2 stops Los Angeles Atlanta Hartsfield-Jackson
Delta Logo
06:15 - 08:30PHL  Philadelphia-SYD Sydney Kingsford Smith
34h 15m2 stops Minneapolis St Paul Los Angeles
$1,207Delta
Fri, 29 Jan - Thu, 18 Feb
American Airlines Logo
09:45 - 05:26MEL  Melbourne-PHL Philadelphia
34h 41m2 stops Los Angeles Phoenix Sky Harbor Intl
American Airlines Logo
17:30 - 05:00PHL  Philadelphia-MEL Melbourne
44h 30m1 stop Dallas/Fort Worth
$1,835American Airlines
Thu, 22 Oct - Mon, 26 Oct
American Airlines Logo
09:45 - 05:26MEL  Melbourne-PHL Philadelphia
34h 41m2 stops Los Angeles Phoenix Sky Harbor Intl
American Airlines Logo
17:30 - 05:00PHL  Philadelphia-MEL Melbourne
44h 30m1 stop Dallas/Fort Worth
$1,836American Airlines
Thu, 22 Oct - Mon, 26 Oct
Qantas Airways Logo
09:40 - 14:55BNE  Brisbane-PHL Philadelphia
20h 15m1 stop Dallas/Fort Worth
Qantas Airways Logo
17:17 - 06:30PHL  Philadelphia-BNE Brisbane
22h 13m1 stop Dallas/Fort Worth
$1,964Qantas Airways
Sat, 14 Nov - Sat, 21 Nov
Qatar Airways Logo
22:45 - 14:50PER  Perth-PHL Philadelphia
29h 05m1 stop Doha Hamad Intl
Qatar Airways Logo
20:45 - 18:45PHL  Philadelphia-PER Perth
33h 00m1 stop Doha Hamad Intl
$2,519Qatar Airways
Sun, 1 Nov - Sun, 8 Nov
Qatar Airways Logo
22:45 - 14:50PER  Perth-PHL Philadelphia
29h 05m1 stop Doha Hamad Intl
Qatar Airways Logo
20:45 - 18:45PHL  Philadelphia-PER Perth
33h 00m1 stop Doha Hamad Intl
$2,614Qatar Airways
Wed, 18 Nov - Wed, 25 Nov
Qantas Airways Logo
11:20 - 20:36SYD  Sydney Kingsford Smith-PHL Philadelphia
25h 16m1 stop Los Angeles
Qantas Airways Logo
15:55 - 09:00PHL  Philadelphia-SYD Sydney Kingsford Smith
25h 05m1 stop Los Angeles
$2,683Qantas Airways
Wed, 13 Jan - Wed, 20 Jan
United Airlines Logo
09:20 - 16:56SYD  Sydney Kingsford Smith-PHL Philadelphia
23h 36m1 stop Houston George Bush Intcntl
United Airlines Logo
11:39 - 07:00PHL  Philadelphia-SYD Sydney Kingsford Smith
27h 21m2 stops Chicago O'Hare Intl Houston George Bush Intcntl
$2,709United Airlines
Sat, 30 Jan - Thu, 18 Feb
United Airlines Logo
11:50 - 21:40SYD  Sydney Kingsford Smith-PHL Philadelphia
25h 50m2 stops San Francisco Chicago O'Hare Intl
United Airlines Logo
13:19 - 09:05PHL  Philadelphia-SYD Sydney Kingsford Smith
27h 46m2 stops Chicago O'Hare Intl Los Angeles
$2,739United Airlines
Wed, 13 Jan - Wed, 20 Jan

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

Wed 28/10

09:40-20:25

2 stops25h 45m

Philadelphia

Wed 4/11

11:36-08:30

2 stops28h 54m

$1,071

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Fri 29/1

10:40-22:56

2 stops28h 16m

Philadelphia

Thu 18/2

06:15-08:30

2 stops34h 15m

$1,207

MelbournePhiladelphia

MEL Melbourne - PHL Philadelphia

MELPHL

Melbourne

Thu 22/10

09:45-05:26

2 stops34h 41m

Philadelphia

Mon 26/10

17:30-05:00

1 stop44h 30m

$1,835

MelbournePhiladelphia

MEL Melbourne - PHL Philadelphia

MELPHL

Melbourne

Thu 22/10

09:45-05:26

2 stops34h 41m

Philadelphia

Mon 26/10

17:30-05:00

1 stop44h 30m

$1,836
Fastest return journey

BrisbanePhiladelphia

BNE Brisbane - PHL Philadelphia

BNEPHL

Brisbane

Sat 14/11

09:40-14:55

1 stop20h 15m

Philadelphia

Sat 21/11

17:17-06:30

1 stop22h 13m

$1,964

PerthPhiladelphia

PER Perth - PHL Philadelphia

PERPHL

Perth

Sun 1/11

22:45-14:50

1 stop29h 05m

Philadelphia

Sun 8/11

20:45-18:45

1 stop33h 00m

$2,519

PerthPhiladelphia

PER Perth - PHL Philadelphia

PERPHL

Perth

Wed 18/11

22:45-14:50

1 stop29h 05m

Philadelphia

Wed 25/11

20:45-18:45

1 stop33h 00m

$2,614

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Wed 13/1

11:20-20:36

1 stop25h 16m

Philadelphia

Wed 20/1

15:55-09:00

1 stop25h 05m

$2,683

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Sat 30/1

09:20-16:56

1 stop23h 36m

Philadelphia

Thu 18/2

11:39-07:00

2 stops27h 21m

$2,709

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Wed 13/1

11:50-21:40

2 stops25h 50m

Philadelphia

Wed 20/1

13:19-09:05

2 stops27h 46m

$2,739

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

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 $1,608.

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 SYDNEYJuly29% cheaperFlying from Sydney to Philadelphia costs on average just $1,502 in July
MOST EXPENSIVE MONTH TO FLY TO PHILADELPHIA FROM SYDNEYSeptember49% more expensiveIt costs about $3,161 for flights to Philadelphia from Sydney in September
MOST POPULAR MONTH TO FLY TO PHILADELPHIA FROM SYDNEYJuly450% 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

$1,259

Best Round-Trip Price

$1,071

Fastest flight time

35h 58m

Popular in

September
The best one-way flight price to Philadelphia from Australia in the last 5 days is $1,259 (Sydney Kingsford Smith to Philadelphia).
Search Deals
The best return flight price to Philadelphia from Australia in the last 5 days is $1,071 (Sydney Kingsford Smith to Philadelphia).
Search Deals
The fastest flight to Philadelphia from Australia takes 35h 58m (Sydney Kingsford Smith to Philadelphia).
Search Deals
September has the highest demand for flights to Philadelphia, with a 13% 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 $167 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 October 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.

An easier way to manage your Philadelphia trip

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Find better results for your trip to Philadelphia

Popular Flights to Philadelphia

Melbourne to Philadelphia Flightsfrom $1,496
Brisbane to Philadelphia Flightsfrom $1,037
Sydney Kingsford Smith to Philadelphia Flightsfrom $840
Darwin to Philadelphia Flightsfrom $2,735
Adelaide to Philadelphia Flightsfrom $1,615
Perth to Philadelphia Flightsfrom $1,532