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Cheap flights from Philadelphia to Adelaide from $1,495

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Adelaide departing on 6/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Philadelphia to Adelaide

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
9:25 am - 11:05 am
PHL
-
ADL
36h 10m
2 stops
United Airlines Logo
6:05 am - 1:29 am
ADL
-
PHL
32h 54m
2 stops
$1,495United Airlines
Tue, Jun 16 - Wed, Jul 8
United Airlines Logo
9:25 am - 11:05 am
PHL
-
ADL
36h 10m
2 stops
United Airlines Logo
6:05 am - 5:31 am
ADL
-
PHL
36h 56m
3 stops
$1,496United Airlines
Sun, Jun 14 - Wed, Jul 8
United Airlines Logo
6:23 pm - 11:05 am
PHL
-
ADL
27h 12m
2 stops
United Airlines Logo
6:40 am - 1:29 am
ADL
-
PHL
32h 19m
2 stops
$1,497United Airlines
Sun, Jun 14 - Mon, Jul 6
United Airlines Logo
9:25 am - 10:55 am
PHL
-
ADL
36h 00m
2 stops
United Airlines Logo
6:05 am - 1:29 am
ADL
-
PHL
32h 54m
2 stops
$1,502United Airlines
Wed, Jun 17 - Wed, Jul 8
United Airlines Logo
9:25 am - 11:05 am
PHL
-
ADL
36h 10m
2 stops
United Airlines Logo
8:00 pm - 1:29 am
ADL
-
PHL
42h 59m
2 stops
$1,503United Airlines
Sun, Jun 14 - Tue, Jul 7
United Airlines Logo
9:25 am - 11:05 am
PHL
-
ADL
36h 10m
2 stops
United Airlines Logo
6:00 am - 5:17 pm
ADL
-
PHL
24h 47m
2 stops
$1,504United Airlines
Sun, Jun 14 - Tue, Jul 7
United Airlines Logo
6:00 am - 11:05 am
PHL
-
ADL
39h 35m
2 stops
United Airlines Logo
6:05 am - 1:29 am
ADL
-
PHL
32h 54m
2 stops
$1,508United Airlines
Sun, Jun 14 - Sun, Jul 5
United Airlines Logo
9:25 am - 10:55 am
PHL
-
ADL
36h 00m
2 stops
United Airlines Logo
8:00 pm - 5:31 am
ADL
-
PHL
47h 01m
3 stops
$1,509United Airlines
Wed, Jun 17 - Tue, Jul 7
United Airlines Logo
6:00 am - 11:05 am
PHL
-
ADL
39h 35m
2 stops
United Airlines Logo
6:00 am - 5:17 pm
ADL
-
PHL
24h 47m
2 stops
$1,515United Airlines
Sun, Jun 14 - Tue, Jul 7
Qantas Airways Logo
5:40 pm - 11:05 am
PHL
-
ADL
27h 55m
2 stops
Qantas Airways Logo
6:00 am - 6:28 pm
ADL
-
PHL
25h 58m
2 stops
$1,524Qantas Airways
Sun, Jun 14 - Wed, Jul 8

United Airlines flights from Philadelphia to Adelaide

Our best United Airlines deals on Philadelphia to Adelaide flight tickets
United Airlines
Jun 16
PHL9:25 amPhiladelphia
36h 10m
2 stops
ADL11:05 amAdelaide
Jul 8
ADL6:05 amAdelaide
32h 54m
2 stops
PHL1:29 amPhiladelphia
$1,495
United Airlines
Jun 14
PHL9:25 amPhiladelphia
36h 10m
2 stops
ADL11:05 amAdelaide
Jul 8
ADL6:05 amAdelaide
36h 56m
3 stops
PHL5:31 amPhiladelphia
$1,496
United Airlines
Jun 14
PHL6:23 pmPhiladelphia
27h 12m
2 stops
ADL11:05 amAdelaide
Jul 6
ADL6:40 amAdelaide
36h 21m
3 stops
PHL5:31 amPhiladelphia
$1,497

Qantas Airways flights from Philadelphia to Adelaide

Our best Qantas Airways deals on Philadelphia to Adelaide flight tickets
Qantas Airways
Apr 19
PHL3:43 pmPhiladelphia
29h 07m
2 stops
ADL10:20 amAdelaide
Apr 21
ADL5:10 pmAdelaide
27h 28m
2 stops
PHL7:08 amPhiladelphia
$1,483
Qantas Airways
Jun 14
PHL5:40 pmPhiladelphia
27h 55m
2 stops
ADL11:05 amAdelaide
Jul 8
ADL6:00 amAdelaide
25h 58m
2 stops
PHL6:28 pmPhiladelphia
$1,524
Qantas Airways
Jun 14
PHL5:40 pmPhiladelphia
28h 45m
2 stops
ADL11:55 amAdelaide
Jul 8
ADL6:00 amAdelaide
25h 58m
2 stops
PHL6:28 pmPhiladelphia
$1,525

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to Adelaide that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated April 18, 2026.
Use the filters below to find and compare flights from Philadelphia to Adelaide that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 6/16

9:25 am-11:05 am

2 stops36h 10m

Adelaide

Wed 7/8

6:05 am-1:29 am

2 stops32h 54m

$1,495

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 6/14

9:25 am-11:05 am

2 stops36h 10m

Adelaide

Wed 7/8

6:05 am-5:31 am

3 stops36h 56m

$1,496

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 6/14

6:23 pm-11:05 am

2 stops27h 12m

Adelaide

Mon 7/6

6:40 am-1:29 am

2 stops32h 19m

$1,497

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Wed 6/17

9:25 am-10:55 am

2 stops36h 00m

Adelaide

Wed 7/8

6:05 am-1:29 am

2 stops32h 54m

$1,502

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 6/14

9:25 am-11:05 am

2 stops36h 10m

Adelaide

Tue 7/7

8:00 pm-1:29 am

2 stops42h 59m

$1,503

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 6/14

9:25 am-11:05 am

2 stops36h 10m

Adelaide

Tue 7/7

6:00 am-5:17 pm

2 stops24h 47m

$1,504

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 6/14

6:00 am-11:05 am

2 stops39h 35m

Adelaide

Sun 7/5

6:05 am-1:29 am

2 stops32h 54m

$1,508

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Wed 6/17

9:25 am-10:55 am

2 stops36h 00m

Adelaide

Tue 7/7

8:00 pm-5:31 am

3 stops47h 01m

$1,509

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 6/14

6:00 am-11:05 am

2 stops39h 35m

Adelaide

Tue 7/7

6:00 am-5:17 pm

2 stops24h 47m

$1,515
Quickest round-trip

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 6/14

5:40 pm-11:05 am

2 stops27h 55m

Adelaide

Wed 7/8

6:00 am-6:28 pm

2 stops25h 58m

$1,524

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Philadelphia to Adelaide

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to Adelaide according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Philadelphia to Adelaide (PHL to ADL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Adelaide

Fastest flight time

27h 12m

Direct flights

None
The fastest flight from Philadelphia to Adelaide takes 27h 12m
There are no direct flights from Philadelphia to Adelaide. There are no popular flight routes from Philadelphia to Adelaide.
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Frequently asked questions about flying from Philadelphia to Adelaide

  • How far is Philadelphia to Adelaide by plane?

    Philadelphia and Adelaide are 10557.0 mi apart from one another. A reasonable flight in good conditions will take 27h 12m.

  • When did momondo last update prices for flights from Philadelphia Airport to Adelaide Airport?

    Prices for flights from Philadelphia Airport to Adelaide Airport refresh daily.

  • How old do you have to be to fly from Philadelphia Airport to Adelaide Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Philadelphia Airport to Adelaide Airport.

  • What documentation or ID do you need to fly to Adelaide Airport?

    The necessary travel and health documents for your Adelaide 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 license 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.

Frequently asked questions about flying from Philadelphia to Adelaide

  • How do I get Price Alerts for flights from Philadelphia to Adelaide?

    Price Alerts will notify you by email when the price for flights to Adelaide from Philadelphia decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Philadelphia to Adelaide with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Traveling to a place near Adelaide?

Book flights to Adelaide if you plan to visit one of these locations
Glenelg

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Adelaide?

It is quick and easy to find Philadelphia to Adelaide flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Adelaide that suits you.

Can I find flights from Philadelphia to Adelaide with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Philadelphia to Adelaide flights to just show those with flexible booking policies.

How can momondo help me find flights from Philadelphia to Adelaide?

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 help filter your options to help you make an informed choice when booking flights to Adelaide from Philadelphia.

I’m not ready to book a flight from Philadelphia to Adelaide right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Adelaide from Philadelphia. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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