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$807 Cheap flights to Philadelphia

1 adult
1 adult, Economy, 0 bags

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Cheap return flights

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Multiple Airlines Logo
21:40 - 17:11SYD  Sydney Kingsford Smith-PHL Philadelphia
35h 31m2 stops Honolulu Seattle/Tacoma Intl
Multiple Airlines Logo
18:14 - 19:45PHL  Philadelphia-SYD Sydney Kingsford Smith
33h 31m2 stops Seattle/Tacoma Intl Honolulu
$1,599Multiple Airlines
Sat, 23 Jan - Sun, 31 Jan
American Airlines Logo
11:10 - 20:14SYD  Sydney Kingsford Smith-PHL Philadelphia
25h 04m1 stop Los Angeles
American Airlines Logo
19:37 - 09:00PHL  Philadelphia-SYD Sydney Kingsford Smith
45h 23m2 stops Miami Los Angeles
$1,654American Airlines
Thu, 5 Nov - Mon, 9 Nov
American Airlines Logo
11:10 - 19:50SYD  Sydney Kingsford Smith-PHL Philadelphia
24h 40m2 stops Los Angeles Phoenix Sky Harbor Intl
American Airlines Logo
19:37 - 09:00PHL  Philadelphia-SYD Sydney Kingsford Smith
45h 23m2 stops Miami Los Angeles
$1,654American Airlines
Thu, 5 Nov - Mon, 9 Nov
Multiple Airlines Logo
21:40 - 17:11SYD  Sydney Kingsford Smith-PHL Philadelphia
35h 31m2 stops Honolulu Seattle/Tacoma Intl
Multiple Airlines Logo
17:56 - 19:45PHL  Philadelphia-SYD Sydney Kingsford Smith
57h 49m2 stops Seattle/Tacoma Intl Honolulu
$1,681Multiple Airlines
Mon, 1 Feb - Wed, 24 Feb
Qantas Airways Logo
11:10 - 21:05SYD  Sydney Kingsford Smith-PHL Philadelphia
25h 55m2 stops Los Angeles Dallas/Fort Worth
Qantas Airways Logo
15:55 - 09:00PHL  Philadelphia-SYD Sydney Kingsford Smith
25h 05m1 stop Los Angeles
$1,698Qantas Airways
Tue, 1 Dec - Mon, 7 Dec
Qantas Airways Logo
17:50 - 16:24SYD  Sydney Kingsford Smith-PHL Philadelphia
38h 34m2 stops Auckland Intl Dallas/Fort Worth
Qantas Airways Logo
15:55 - 09:00PHL  Philadelphia-SYD Sydney Kingsford Smith
25h 05m1 stop Los Angeles
$1,774Qantas Airways
Mon, 30 Nov - Mon, 7 Dec
United Airlines Logo
09:15 - 19:31SYD  Sydney Kingsford Smith-PHL Philadelphia
26h 16m2 stops Houston George Bush Intcntl Denver Intl
United Airlines Logo
18:21 - 09:20PHL  Philadelphia-SYD Sydney Kingsford Smith
22h 59m1 stop San Francisco
$1,982United Airlines
Mon, 16 Nov - Mon, 23 Nov
United Airlines Logo
11:20 - 18:41SYD  Sydney Kingsford Smith-PHL Philadelphia
23h 21m2 stops Los Angeles Houston George Bush Intcntl
United Airlines Logo
13:16 - 09:05PHL  Philadelphia-SYD Sydney Kingsford Smith
27h 49m3 stops Chicago O'Hare Intl Denver Intl Los Angeles
$1,982United Airlines
Mon, 16 Nov - Mon, 23 Nov
Qatar Airways Logo
22:00 - 21:11ADL  Adelaide-PHL Philadelphia
38h 41m2 stops Doha Hamad Intl Boston Logan Intl
Qatar Airways Logo
20:45 - 15:55PHL  Philadelphia-ADL Adelaide
27h 40m1 stop Doha Hamad Intl
$2,827Qatar Airways
Thu, 5 Nov - Thu, 12 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
$3,223Qatar Airways
Thu, 5 Nov - Thu, 12 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

Sat 23/1

21:40-17:11

2 stops35h 31m

Philadelphia

Sun 31/1

18:14-19:45

2 stops33h 31m

$1,599

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Thu 5/11

11:10-20:14

1 stop25h 04m

Philadelphia

Mon 9/11

19:37-09:00

2 stops45h 23m

$1,654

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Thu 5/11

11:10-19:50

2 stops24h 40m

Philadelphia

Mon 9/11

19:37-09:00

2 stops45h 23m

$1,654

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Mon 1/2

21:40-17:11

2 stops35h 31m

Philadelphia

Wed 24/2

17:56-19:45

2 stops57h 49m

$1,681

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Tue 1/12

11:10-21:05

2 stops25h 55m

Philadelphia

Mon 7/12

15:55-09:00

1 stop25h 05m

$1,698

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Mon 30/11

17:50-16:24

2 stops38h 34m

Philadelphia

Mon 7/12

15:55-09:00

1 stop25h 05m

$1,774
Fastest return journey

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Mon 16/11

09:15-19:31

2 stops26h 16m

Philadelphia

Mon 23/11

18:21-09:20

1 stop22h 59m

$1,982

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Mon 16/11

11:20-18:41

2 stops23h 21m

Philadelphia

Mon 23/11

13:16-09:05

3 stops27h 49m

$1,982

AdelaidePhiladelphia

ADL Adelaide - PHL Philadelphia

ADLPHL

Adelaide

Thu 5/11

22:00-21:11

2 stops38h 41m

Philadelphia

Thu 12/11

20:45-15:55

1 stop27h 40m

$2,827

AdelaidePhiladelphia

ADL Adelaide - PHL Philadelphia

ADLPHL

Adelaide

Thu 5/11

22:00-14:50

1 stop32h 20m

Philadelphia

Thu 12/11

20:45-15:55

1 stop27h 40m

$3,223

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 $1,603.

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 $1,497 in July
MOST EXPENSIVE MONTH TO FLY TO PHILADELPHIA FROM SYDNEYDecember36% more expensiveIt costs about $2,801 for flights to Philadelphia from Sydney in December
MOST POPULAR MONTH TO FLY TO PHILADELPHIA FROM SYDNEYDecember283% more users visitedMore momondo users searched in flights to Philadelphia from Sydney in December than any other month

Cheap Philadelphia flight deals and tips

Summary info about Philadelphia flight prices, duration and airlines

Best One-Way Price

$807

Best Round-Trip Price

$1,599

Fastest flight time

34h 05m

Popular in

September
The best one-way flight price to Philadelphia from Australia in the last 5 days is $807 (Brisbane to Philadelphia).
Search Deals
The best return flight price to Philadelphia from Australia in the last 5 days is $1,599 (Sydney Kingsford Smith to Philadelphia).
Search Deals
The fastest flight to Philadelphia from Australia takes 34h 05m (Perth to Philadelphia).
Search Deals
September has the highest demand for flights to Philadelphia, with a 14% 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
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 $1,343
Brisbane to Philadelphia Flightsfrom $2,015
Sydney Kingsford Smith to Philadelphia Flightsfrom $1,238
Darwin to Philadelphia Flightsfrom $2,753
Adelaide to Philadelphia Flightsfrom $1,958
Perth to Philadelphia Flightsfrom $1,668