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Look for other cheap flights to Philadelphia

$1,147 Cheap flights to Philadelphia

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Philadelphia departing on 22/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Australia to Philadelphia

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
10:55 - 05:31
MEL
-
PHL
32h 36m
2 stops
United Airlines Logo
10:39 - 07:30
PHL
-
MEL
30h 51m
2 stops
$1,353United Airlines
Fri, 19 Jun - Mon, 27 Jul
United Airlines Logo
10:55 - 01:23
MEL
-
PHL
28h 28m
1 stop
United Airlines Logo
06:10 - 08:15
PHL
-
MEL
36h 05m
2 stops
$1,372United Airlines
Sun, 19 Jul - Sun, 26 Jul
United Airlines Logo
10:20 - 17:17
SYD
-
PHL
20h 57m
1 stop
United Airlines Logo
13:35 - 06:55
PHL
-
SYD
27h 20m
2 stops
$1,460United Airlines
Mon, 3 Aug - Wed, 19 Aug
Virgin Australia Logo
10:55 - 07:50
MEL
-
PHL
34h 55m
1 stop
Virgin Australia Logo
18:23 - 08:15
PHL
-
MEL
23h 52m
1 stop
$1,649Virgin Australia
Tue, 14 Jul - Thu, 30 Jul
American Airlines Logo
09:10 - 09:19
SYD
-
PHL
38h 09m
2 stops
American Airlines Logo
19:35 - 06:25
PHL
-
SYD
44h 50m
1 stop
$1,777American Airlines
Thu, 6 Aug - Mon, 10 Aug
American Airlines Logo
09:10 - 18:47
SYD
-
PHL
23h 37m
2 stops
American Airlines Logo
13:22 - 07:05
PHL
-
SYD
27h 43m
1 stop
$1,886American Airlines
Tue, 21 Jul - Tue, 28 Jul
Qantas Airways Logo
17:05 - 06:00
MEL
-
PHL
26h 55m
2 stops
Qantas Airways Logo
09:00 - 06:45
PHL
-
MEL
31h 45m
1 stop
$2,357Qantas Airways
Sun, 13 Sep - Sun, 20 Sep
Air New Zealand Logo
07:05 - 22:29
CBR
-
PHL
29h 24m
3 stops
Air New Zealand Logo
13:04 - 14:55
PHL
-
CBR
35h 51m
3 stops
$3,183Air New Zealand
Mon, 20 Jul - Mon, 27 Jul
Air Canada Logo
06:05 - 10:04
CBR
-
PHL
41h 59m
3 stops
Air Canada Logo
10:45 - 11:35
PHL
-
CBR
34h 50m
3 stops
$3,247Air Canada
Wed, 15 Jul - Tue, 21 Jul
Air Canada Logo
22:55 - 22:56
PER
-
PHL
37h 01m
3 stops
Air Canada Logo
09:15 - 20:20
PHL
-
PER
46h 05m
3 stops
$3,890Air Canada
Thu, 19 Nov - Mon, 23 Nov

momondo Fare Finder

 
Locate flights to Philadelphia that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 78,305 searches and data was last updated on 8 June 2026.
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

MelbournePhiladelphia

MEL - PHL

MELPHL

Melbourne

Fri 19/6

10:55-05:31

2 stops32h 36m

Philadelphia

Mon 27/7

10:39-07:30

2 stops30h 51m

$1,353

MelbournePhiladelphia

MEL - PHL

MELPHL

Melbourne

Sun 19/7

10:55-01:23

1 stop28h 28m

Philadelphia

Sun 26/7

06:10-08:15

2 stops36h 05m

$1,372
Fastest return journey

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 3/8

10:20-17:17

1 stop20h 57m

Philadelphia

Wed 19/8

13:35-06:55

2 stops27h 20m

$1,460

MelbournePhiladelphia

MEL - PHL

MELPHL

Melbourne

Tue 14/7

10:55-07:50

1 stop34h 55m

Philadelphia

Thu 30/7

18:23-08:15

1 stop23h 52m

$1,649

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 6/8

09:10-09:19

2 stops38h 09m

Philadelphia

Mon 10/8

19:35-06:25

1 stop44h 50m

$1,777

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 21/7

09:10-18:47

2 stops23h 37m

Philadelphia

Tue 28/7

13:22-07:05

1 stop27h 43m

$1,886

MelbournePhiladelphia

MEL - PHL

MELPHL

Melbourne

Sun 13/9

17:05-06:00

2 stops26h 55m

Philadelphia

Sun 20/9

09:00-06:45

1 stop31h 45m

$2,357

CanberraPhiladelphia

CBR - PHL

CBRPHL

Canberra

Mon 20/7

07:05-22:29

3 stops29h 24m

Philadelphia

Mon 27/7

13:04-14:55

3 stops35h 51m

$3,183

CanberraPhiladelphia

CBR - PHL

CBRPHL

Canberra

Wed 15/7

06:05-10:04

3 stops41h 59m

Philadelphia

Tue 21/7

10:45-11:35

3 stops34h 50m

$3,247

PerthPhiladelphia

PER - PHL

PERPHL

Perth

Thu 19/11

22:55-22:56

3 stops37h 01m

Philadelphia

Mon 23/11

09:15-20:20

3 stops46h 05m

$3,890

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 November, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $1,774.

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 SYDNEYNovember25% cheaperFlying from Sydney to Philadelphia costs on average just $1,617 in November
MOST EXPENSIVE MONTH TO FLY TO PHILADELPHIA FROM SYDNEYSeptember54% more expensiveIt costs about $3,314 for flights to Philadelphia from Sydney in September
MOST POPULAR MONTH TO FLY TO PHILADELPHIA FROM SYDNEYAugust400% more users visitedMore momondo users searched in flights to Philadelphia from Sydney in August than any other month

Cheap Philadelphia flight deals and tips

Summary info about Philadelphia flight prices, duration and airlines

Best One-Way Price

$1,147

Best Round-Trip Price

$1,353

Fastest flight time

25h 45m

Popular in

June
The best one-way flight price to Philadelphia from Australia in the last 5 days is $1,147 (Sydney Kingsford Smith to Philadelphia).
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The best round-trip flight price to Philadelphia from Australia in the last 5 days is $1,353 (Melbourne to Philadelphia).
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The fastest flight to Philadelphia from Australia takes 25h 45m (Sydney Kingsford Smith to Philadelphia).
Search Deals
June has the highest demand for flights to Philadelphia, with a 17% 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 $184 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 Los Angeles found flights 46% 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 6 as of June 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
Elkton
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

Popular routes according to searches in the past day on momondo
Melbourne to Philadelphia Flightsfrom $969
Sydney Kingsford Smith to Philadelphia Flightsfrom $1,029
Adelaide to Philadelphia Flightsfrom $1,350
Brisbane to Philadelphia Flightsfrom $1,865
Perth to Philadelphia Flightsfrom $1,832
Darwin to Philadelphia Flightsfrom $2,354