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$675 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 - 05:11SYD  Sydney Kingsford Smith-PHL Philadelphia
33h 51m2 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
$1,782American Airlines
Thu, 4 Feb - Mon, 8 Feb
Multiple Airlines Logo
11:15 - 06:01SYD  Sydney Kingsford Smith-PHL Philadelphia
34h 46m2 stops Los Angeles Las Vegas Harry Reid Intl
Multiple Airlines Logo
07:34 - 06:25PHL  Philadelphia-SYD Sydney Kingsford Smith
30h 51m2 stops Atlanta Hartsfield-Jackson Los Angeles
$1,827Multiple Airlines
Thu, 26 Nov - Thu, 3 Dec
American Airlines Logo
23:10 - 14:39PER  Perth-PHL Philadelphia
52h 29m2 stops Brisbane Los Angeles
American Airlines Logo
07:10 - 14:10PHL  Philadelphia-PER Perth
42h 00m2 stops Dallas/Fort Worth Brisbane
$1,848American Airlines
Fri, 5 Feb - Mon, 8 Feb
Delta Logo
10:40 - 05:43SYD  Sydney Kingsford Smith-PHL Philadelphia
35h 03m2 stops Los Angeles Seattle/Tacoma Intl
Delta Logo
05:34 - 08:30PHL  Philadelphia-SYD Sydney Kingsford Smith
34h 56m2 stops Minneapolis St Paul Los Angeles
$1,988Delta
Tue, 24 Nov - Tue, 1 Dec
United Airlines Logo
11:50 - 17:15SYD  Sydney Kingsford Smith-PHL Philadelphia
21h 25m1 stop San Francisco
United Airlines Logo
18:14 - 09:05PHL  Philadelphia-SYD Sydney Kingsford Smith
46h 51m2 stops San Francisco Los Angeles
$2,062United Airlines
Thu, 19 Nov - Fri, 8 Jan
United Airlines Logo
11:20 - 18:51SYD  Sydney Kingsford Smith-PHL Philadelphia
23h 31m2 stops Los Angeles Washington, D.C. Dulles Intl
United Airlines Logo
18:14 - 09:05PHL  Philadelphia-SYD Sydney Kingsford Smith
46h 51m2 stops San Francisco Los Angeles
$2,062United Airlines
Thu, 19 Nov - Fri, 8 Jan
Qantas Airways Logo
06:25 - 19:11ADL  Adelaide-PHL Philadelphia
28h 16m2 stops Sydney Kingsford Smith Dallas/Fort Worth
Qantas Airways Logo
18:35 - 11:00PHL  Philadelphia-ADL Adelaide
48h 55m2 stops Los Angeles Sydney Kingsford Smith
$2,155Qantas Airways
Fri, 27 Nov - Fri, 4 Dec
Qantas Airways Logo
06:25 - 19:11ADL  Adelaide-PHL Philadelphia
28h 16m2 stops Sydney Kingsford Smith Dallas/Fort Worth
Qantas Airways Logo
18:35 - 11:00PHL  Philadelphia-ADL Adelaide
48h 55m2 stops Los Angeles Sydney Kingsford Smith
$2,158Qantas Airways
Fri, 27 Nov - Fri, 4 Dec
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
$2,824Qatar Airways
Fri, 5 Feb - Mon, 8 Feb
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
$2,825Qatar Airways
Fri, 5 Feb - Mon, 8 Feb

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 4/2

11:20-05:11

2 stops33h 51m

Philadelphia

Mon 8/2

05:00-06:55

1 stop33h 55m

$1,782

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Thu 26/11

11:15-06:01

2 stops34h 46m

Philadelphia

Thu 3/12

07:34-06:25

2 stops30h 51m

$1,827

PerthPhiladelphia

PER Perth - PHL Philadelphia

PERPHL

Perth

Fri 5/2

23:10-14:39

2 stops52h 29m

Philadelphia

Mon 8/2

07:10-14:10

2 stops42h 00m

$1,848

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Tue 24/11

10:40-05:43

2 stops35h 03m

Philadelphia

Tue 1/12

05:34-08:30

2 stops34h 56m

$1,988

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Thu 19/11

11:50-17:15

1 stop21h 25m

Philadelphia

Fri 8/1

18:14-09:05

2 stops46h 51m

$2,062

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Thu 19/11

11:20-18:51

2 stops23h 31m

Philadelphia

Fri 8/1

18:14-09:05

2 stops46h 51m

$2,062

AdelaidePhiladelphia

ADL Adelaide - PHL Philadelphia

ADLPHL

Adelaide

Fri 27/11

06:25-19:11

2 stops28h 16m

Philadelphia

Fri 4/12

18:35-11:00

2 stops48h 55m

$2,155

AdelaidePhiladelphia

ADL Adelaide - PHL Philadelphia

ADLPHL

Adelaide

Fri 27/11

06:25-19:11

2 stops28h 16m

Philadelphia

Fri 4/12

18:35-11:00

2 stops48h 55m

$2,158
Fastest return journey

PerthPhiladelphia

PER Perth - PHL Philadelphia

PERPHL

Perth

Fri 5/2

22:45-14:50

1 stop29h 05m

Philadelphia

Mon 8/2

20:45-18:45

1 stop33h 00m

$2,824

PerthPhiladelphia

PER Perth - PHL Philadelphia

PERPHL

Perth

Fri 5/2

22:45-14:50

1 stop29h 05m

Philadelphia

Mon 8/2

20:45-18:45

1 stop33h 00m

$2,825

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 $1,591.

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 $1,486 in July
MOST EXPENSIVE MONTH TO FLY TO PHILADELPHIA FROM SYDNEYDecember35% more expensiveIt costs about $2,780 for flights to Philadelphia from Sydney in December
MOST POPULAR MONTH TO FLY TO PHILADELPHIA FROM SYDNEYDecember383% 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

$675

Best Round-Trip Price

$1,782

Fastest flight time

39h 36m

Popular in

September
The best one-way flight price to Philadelphia from Australia in the last 5 days is $675 (Sydney Kingsford Smith to Philadelphia).
Search Deals
The best return flight price to Philadelphia from Australia in the last 5 days is $1,782 (Sydney Kingsford Smith to Philadelphia).
Search Deals
The fastest flight to Philadelphia from Australia takes 39h 36m (Brisbane 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 $165 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.

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Find better results for your trip to Philadelphia

Popular Flights to Philadelphia

Melbourne to Philadelphia Flightsfrom $1,698
Sydney Kingsford Smith to Philadelphia Flightsfrom $1,450
Perth to Philadelphia Flightsfrom $1,920
Adelaide to Philadelphia Flightsfrom $1,518
Brisbane to Philadelphia Flightsfrom $1,318
Darwin to Philadelphia Flightsfrom $2,680