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Cheap flights from Philadelphia to Adelaide from $1,653

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 5/16. 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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Find the cheapest flights from Philadelphia to Adelaide

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:42 pm - 9:25 am
PHL
-
ADL
28h 13m
2 stops
Multiple Airlines Logo
5:15 pm - 6:35 pm
ADL
-
PHL
38h 50m
2 stops
$1,653Multiple Airlines
Sat, May 16 - Sat, May 23
Qantas Airways Logo
5:35 pm - 11:55 am
PHL
-
ADL
28h 50m
2 stops
Qantas Airways Logo
6:00 am - 6:28 pm
ADL
-
PHL
25h 58m
2 stops
$1,662Qantas Airways
Sun, Jun 14 - Wed, Jul 8
Multiple Airlines Logo
5:40 pm - 10:00 pm
PHL
-
ADL
38h 50m
2 stops
Multiple Airlines Logo
12:00 pm - 7:00 am
ADL
-
PHL
32h 30m
2 stops
$1,673Multiple Airlines
Sun, Jun 14 - Wed, Jul 8
Qantas Airways Logo
5:37 pm - 11:55 am
PHL
-
ADL
28h 48m
2 stops
Qantas Airways Logo
5:10 pm - 6:35 pm
ADL
-
PHL
38h 55m
2 stops
$1,681Qantas Airways
Mon, May 18 - Mon, May 25
Multiple Airlines Logo
9:46 am - 9:15 am
PHL
-
ADL
33h 59m
2 stops
Multiple Airlines Logo
12:00 pm - 7:00 am
ADL
-
PHL
32h 30m
2 stops
$1,692Multiple Airlines
Sun, Jun 14 - Wed, Jul 8
Multiple Airlines Logo
3:29 pm - 9:15 am
PHL
-
ADL
28h 16m
2 stops
Multiple Airlines Logo
6:25 am - 7:00 am
ADL
-
PHL
38h 05m
2 stops
$1,693Multiple Airlines
Sun, Jun 14 - Wed, Jul 8
Qantas Airways Logo
5:40 pm - 11:55 am
PHL
-
ADL
28h 45m
2 stops
Qantas Airways Logo
1:25 pm - 7:00 am
ADL
-
PHL
31h 05m
2 stops
$1,706Qantas Airways
Sun, Jun 14 - Wed, Jul 8
Qantas Airways Logo
3:29 pm - 11:55 am
PHL
-
ADL
30h 56m
2 stops
Qantas Airways Logo
11:50 am - 7:00 am
ADL
-
PHL
32h 40m
2 stops
$1,707Qantas Airways
Sun, Jun 14 - Wed, Jul 8
Qantas Airways Logo
5:37 pm - 11:55 am
PHL
-
ADL
28h 48m
2 stops
Qantas Airways Logo
5:10 pm - 5:38 am
ADL
-
PHL
25h 58m
2 stops
$1,722Qantas Airways
Fri, May 15 - Fri, May 22
Air New Zealand Logo
9:25 am - 11:55 am
PHL
-
ADL
37h 00m
2 stops
Air New Zealand Logo
12:05 pm - 1:29 am
ADL
-
PHL
26h 54m
2 stops
$1,728Air New Zealand
Tue, Jun 16 - Wed, Jul 8

Qantas Airways flights from Philadelphia to Adelaide

Our best Qantas Airways deals on Philadelphia to Adelaide flight tickets
Qantas Airways
Jun 14
PHL5:35 pmPhiladelphia
28h 50m
2 stops
ADL11:55 amAdelaide
Jul 8
ADL6:00 amAdelaide
25h 58m
2 stops
PHL6:28 pmPhiladelphia
$1,662
Qantas Airways
May 18
PHL5:37 pmPhiladelphia
28h 48m
2 stops
ADL11:55 amAdelaide
May 25
ADL5:10 pmAdelaide
38h 55m
2 stops
PHL6:35 pmPhiladelphia
$1,681
Qantas Airways
Jun 14
PHL5:40 pmPhiladelphia
28h 45m
2 stops
ADL11:55 amAdelaide
Jul 8
ADL1:25 pmAdelaide
31h 05m
2 stops
PHL7:00 amPhiladelphia
$1,706

Air New Zealand flights from Philadelphia to Adelaide

Our best Air New Zealand deals on Philadelphia to Adelaide flight tickets
Air New Zealand
Jun 16
PHL9:25 amPhiladelphia
37h 00m
2 stops
ADL11:55 amAdelaide
Jul 8
ADL12:05 pmAdelaide
26h 54m
2 stops
PHL1:29 amPhiladelphia
$1,728
Air New Zealand
Jun 15
PHL6:00 amPhiladelphia
39h 25m
2 stops
ADL10:55 amAdelaide
Jul 7
ADL7:10 pmAdelaide
35h 37m
2 stops
PHL5:17 pmPhiladelphia
$1,873
Air New Zealand
Jun 12
PHL1:04 pmPhiladelphia
32h 21m
2 stops
ADL10:55 amAdelaide
Jul 7
ADL7:10 pmAdelaide
35h 37m
2 stops
PHL5:17 pmPhiladelphia
$1,898

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 4, 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

Sat 5/16

3:42 pm-9:25 am

2 stops28h 13m

Adelaide

Sat 5/23

5:15 pm-6:35 pm

2 stops38h 50m

$1,653

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 6/14

5:35 pm-11:55 am

2 stops28h 50m

Adelaide

Wed 7/8

6:00 am-6:28 pm

2 stops25h 58m

$1,662

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 6/14

5:40 pm-10:00 pm

2 stops38h 50m

Adelaide

Wed 7/8

12:00 pm-7:00 am

2 stops32h 30m

$1,673

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Mon 5/18

5:37 pm-11:55 am

2 stops28h 48m

Adelaide

Mon 5/25

5:10 pm-6:35 pm

2 stops38h 55m

$1,681

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 6/14

9:46 am-9:15 am

2 stops33h 59m

Adelaide

Wed 7/8

12:00 pm-7:00 am

2 stops32h 30m

$1,692

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 6/14

3:29 pm-9:15 am

2 stops28h 16m

Adelaide

Wed 7/8

6:25 am-7:00 am

2 stops38h 05m

$1,693

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 6/14

5:40 pm-11:55 am

2 stops28h 45m

Adelaide

Wed 7/8

1:25 pm-7:00 am

2 stops31h 05m

$1,706

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 6/14

3:29 pm-11:55 am

2 stops30h 56m

Adelaide

Wed 7/8

11:50 am-7:00 am

2 stops32h 40m

$1,707
Quickest round-trip

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Fri 5/15

5:37 pm-11:55 am

2 stops28h 48m

Adelaide

Fri 5/22

5:10 pm-5:38 am

2 stops25h 58m

$1,722

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 6/16

9:25 am-11:55 am

2 stops37h 00m

Adelaide

Wed 7/8

12:05 pm-1:29 am

2 stops26h 54m

$1,728

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

28h 16m

Direct flights

None
The fastest flight from Philadelphia to Adelaide takes 28h 16m
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 28h 16m.

  • 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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