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Look for other cheap flights to Philadelphia

$886 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 3/9. 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

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Find the cheapest flights from Australia to Philadelphia

Cheap return flights

Enter your travel dates to find the best prices.
Delta Logo
09:15 - 23:12
SYD
-
PHL
27h 57m
2 stops
Delta Logo
05:40 - 06:50
PHL
-
SYD
35h 10m
2 stops
$1,235Delta
Mon, 1 Jun - Mon, 8 Jun
United Airlines Logo
09:30 - 18:54
MEL
-
PHL
23h 24m
2 stops
United Airlines Logo
10:32 - 08:15
PHL
-
MEL
31h 43m
2 stops
$1,349United Airlines
Wed, 29 Jul - Wed, 5 Aug
United Airlines Logo
09:30 - 18:54
MEL
-
PHL
23h 24m
2 stops
United Airlines Logo
09:25 - 08:15
PHL
-
MEL
32h 50m
1 stop
$1,350United Airlines
Wed, 29 Jul - Wed, 5 Aug
United Airlines Logo
10:20 - 01:29
SYD
-
PHL
29h 09m
1 stop
United Airlines Logo
16:14 - 06:55
PHL
-
SYD
24h 41m
2 stops
$1,426United Airlines
Mon, 1 Jun - Mon, 8 Jun
Virgin Australia Logo
10:55 - 07:50
MEL
-
PHL
34h 55m
1 stop
Virgin Australia Logo
09:25 - 08:15
PHL
-
MEL
32h 50m
1 stop
$1,643Virgin Australia
Wed, 29 Jul - Wed, 5 Aug
Virgin Australia Logo
10:55 - 07:50
MEL
-
PHL
34h 55m
1 stop
Virgin Australia Logo
06:00 - 08:15
PHL
-
MEL
36h 15m
1 stop
$1,659Virgin Australia
Wed, 29 Jul - Wed, 5 Aug
Virgin Australia Logo
10:20 - 17:17
SYD
-
PHL
20h 57m
1 stop
Virgin Australia Logo
18:23 - 06:55
PHL
-
SYD
22h 32m
1 stop
$1,723Virgin Australia
Wed, 3 Jun - Wed, 17 Jun
Multiple Airlines Logo
06:00 - 17:30
ADL
-
PHL
25h 00m
2 stops
Multiple Airlines Logo
18:37 - 10:55
PHL
-
ADL
26h 48m
2 stops
$1,899Multiple Airlines
Wed, 12 Aug - Tue, 8 Sep
Multiple Airlines Logo
09:45 - 09:21
MEL
-
PHL
37h 36m
1 stop
Multiple Airlines Logo
08:30 - 06:45
PHL
-
MEL
32h 15m
2 stops
$2,106Multiple Airlines
Tue, 28 Jul - Thu, 6 Aug
Qantas Airways Logo
09:05 - 07:05
PER
-
PHL
34h 00m
2 stops
Qantas Airways Logo
17:40 - 15:25
PHL
-
PER
33h 45m
2 stops
$3,370Qantas Airways
Sat, 20 Jun - Sat, 27 Jun

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 10 May 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

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 1/6

09:15-23:12

2 stops27h 57m

Philadelphia

Mon 8/6

05:40-06:50

2 stops35h 10m

$1,235

MelbournePhiladelphia

MEL - PHL

MELPHL

Melbourne

Wed 29/7

09:30-18:54

2 stops23h 24m

Philadelphia

Wed 5/8

10:32-08:15

2 stops31h 43m

$1,349

MelbournePhiladelphia

MEL - PHL

MELPHL

Melbourne

Wed 29/7

09:30-18:54

2 stops23h 24m

Philadelphia

Wed 5/8

09:25-08:15

1 stop32h 50m

$1,350

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 1/6

10:20-01:29

1 stop29h 09m

Philadelphia

Mon 8/6

16:14-06:55

2 stops24h 41m

$1,426

MelbournePhiladelphia

MEL - PHL

MELPHL

Melbourne

Wed 29/7

10:55-07:50

1 stop34h 55m

Philadelphia

Wed 5/8

09:25-08:15

1 stop32h 50m

$1,643

MelbournePhiladelphia

MEL - PHL

MELPHL

Melbourne

Wed 29/7

10:55-07:50

1 stop34h 55m

Philadelphia

Wed 5/8

06:00-08:15

1 stop36h 15m

$1,659
Fastest return journey

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 3/6

10:20-17:17

1 stop20h 57m

Philadelphia

Wed 17/6

18:23-06:55

1 stop22h 32m

$1,723

AdelaidePhiladelphia

ADL - PHL

ADLPHL

Adelaide

Wed 12/8

06:00-17:30

2 stops25h 00m

Philadelphia

Tue 8/9

18:37-10:55

2 stops26h 48m

$1,899

MelbournePhiladelphia

MEL - PHL

MELPHL

Melbourne

Tue 28/7

09:45-09:21

1 stop37h 36m

Philadelphia

Thu 6/8

08:30-06:45

2 stops32h 15m

$2,106

PerthPhiladelphia

PER - PHL

PERPHL

Perth

Sat 20/6

09:05-07:05

2 stops34h 00m

Philadelphia

Sat 27/6

17:40-15:25

2 stops33h 45m

$3,370

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 October, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $1,571.

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 SYDNEYOctober22% cheaperFlying from Sydney to Philadelphia costs on average just $1,566 in October
MOST EXPENSIVE MONTH TO FLY TO PHILADELPHIA FROM SYDNEYSeptember37% more expensiveIt costs about $2,745 for flights to Philadelphia from Sydney in September
MOST POPULAR MONTH TO FLY TO PHILADELPHIA FROM SYDNEYMay800% more users visitedMore momondo users searched in flights to Philadelphia from Sydney in May than any other month

Cheap Philadelphia flight deals and tips

Summary info about Philadelphia flight prices, duration and airlines

Best One-Way Price

$886

Best Round-Trip Price

$1,235

Fastest flight time

32h 36m

Popular in

June
The best one-way flight price to Philadelphia from Australia in the last 72 hours is $886 (Sydney Kingsford Smith to Philadelphia).
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The best round-trip flight price to Philadelphia from Australia in the last 72 hours is $1,235 (Sydney Kingsford Smith to Philadelphia).
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The fastest flight to Philadelphia from Australia takes 32h 36m (Melbourne to Philadelphia).
Search Deals
June has the highest demand for flights to Philadelphia, with a 18% 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 $178 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 Toronto found flights 77% 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 May 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
Sydney Kingsford Smith to Philadelphia Flightsfrom $895
Melbourne to Philadelphia Flightsfrom $978
Brisbane to Philadelphia Flightsfrom $1,648
Darwin to Philadelphia Flightsfrom $2,374
Adelaide to Philadelphia Flightsfrom $1,362
Perth to Philadelphia Flightsfrom $1,924