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Fly from
Route
Depart
Return
SydneyPhiladelphia
SYD - PHL
SYDPHL
Sydney Kingsford Smith
Sat 1/11
10:20-15:47
2 stops44h 27m
Philadelphia
Thu 13/11
15:30-09:35
2 stops26h 05m
SydneyPhiladelphia
SYD - PHL
SYDPHL
Sydney Kingsford Smith
Sat 1/11
10:20-15:47
3 stops44h 27m
Philadelphia
Thu 13/11
15:30-09:35
2 stops26h 05m
SydneyPhiladelphia
SYD - PHL
SYDPHL
Sydney Kingsford Smith
Sat 16/8
10:20-17:22
1 stop21h 02m
Philadelphia
Sat 23/8
17:18-06:55
2 stops47h 37m
MelbournePhiladelphia
MEL - PHL
MELPHL
Melbourne
Mon 10/11
12:00-23:46
1 stop27h 46m
Philadelphia
Mon 24/11
15:55-09:30
1 stop25h 35m
MelbournePhiladelphia
MEL - PHL
MELPHL
Melbourne
Mon 10/11
13:00-00:15
2 stops27h 15m
Philadelphia
Mon 24/11
09:45-09:30
2 stops31h 45m
MelbournePhiladelphia
MEL - PHL
MELPHL
Melbourne
Tue 7/10
09:45-20:19
1 stop25h 34m
Philadelphia
Wed 3/12
06:23-05:00
1 stop30h 37m
MelbournePhiladelphia
MEL - PHL
MELPHL
Melbourne
Tue 7/10
09:45-19:35
2 stops24h 50m
Philadelphia
Wed 3/12
11:00-05:00
1 stop26h 00m
SydneyPhiladelphia
SYD - PHL
SYDPHL
Sydney Kingsford Smith
Sat 16/8
09:10-00:45
1 stop29h 35m
Philadelphia
Sat 23/8
18:50-07:05
1 stop22h 15m
PerthPhiladelphia
PER - PHL
PERPHL
Perth
Tue 16/9
22:45-09:05
1 stop46h 20m
Philadelphia
Tue 23/9
20:25-18:40
1 stop34h 15m
PerthPhiladelphia
PER - PHL
PERPHL
Perth
Thu 4/9
22:45-09:05
1 stop46h 20m
Philadelphia
Mon 8/9
20:25-18:40
1 stop34h 15m
| CHEAPEST MONTH TO FLY TO PHILADELPHIA FROM SYDNEY | February | 44% cheaper | Flying from Sydney to Philadelphia costs on average just $1,211 in February |
| MOST EXPENSIVE MONTH TO FLY TO PHILADELPHIA FROM SYDNEY | December | 40% more expensive | It costs about $3,036 for flights to Philadelphia from Sydney in December |
| MOST POPULAR MONTH TO FLY TO PHILADELPHIA FROM SYDNEY | February | 787% more users visited | More momondo users searched in flights to Philadelphia from Sydney in February than any other month |
Best One-Way Price | $1,041 |
|---|---|
Best Round-Trip Price | $1,312 |
Fastest flight time | 21h 44m |
Popular in | April |
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.
The ideal time to book your flight to Philadelphia is 59 days in advance, when prices tend to average $2,154. Don’t hesitate to check prices now though, because momondo users recently found tickets for as low as $1,168.
Those flying to Philadelphia could potentially find better pricing at 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), Allentown-Bethlehem Airport (81 km from Philadelphia city centre) or Newark Airport (117 km from Philadelphia city centre) depending on the month and departure airport.
Atlantic City Airport has an average price of $134 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.
Users booking trips to Philadelphia from Las Vegas found flights 67% 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.
Prices for flights to Philadelphia Airport are updated daily.
The number of operators available for flights to Philadelphia Airport is 8 as of August 2025.
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.
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.
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.
All flight searches to Philadelphia on momondo can be filtered to show those which offer flexible booking policies.
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.
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.