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Cheap flights from Philadelphia to Adelaide from $1,329

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 6/14. 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 Philadelphia to Adelaide

Cheap round-trip flights

Enter your travel dates to find the best prices.
Qantas Airways Logo
3:29 pm - 10:35 pm
PHL
-
ADL
41h 36m
2 stops
Qantas Airways Logo
6:00 am - 6:39 pm
ADL
-
PHL
26h 09m
2 stops
$1,329Qantas Airways
Sun, Jun 14 - Wed, Jul 8
Qantas Airways Logo
3:29 pm - 11:15 am
PHL
-
ADL
30h 16m
2 stops
Qantas Airways Logo
6:00 am - 6:39 pm
ADL
-
PHL
26h 09m
2 stops
$1,348Qantas Airways
Sun, Jun 14 - Wed, Jul 8
Air Canada Logo
4:35 pm - 6:10 pm
PHL
-
ADL
58h 05m
3 stops
Air Canada Logo
6:55 pm - 10:56 pm
ADL
-
PHL
43h 31m
3 stops
$1,396Air Canada
Sat, Nov 7 - Sat, Nov 14
Multiple Airlines Logo
5:40 pm - 11:55 am
PHL
-
ADL
28h 45m
2 stops
Multiple Airlines Logo
10:10 am - 10:17 pm
ADL
-
PHL
25h 37m
2 stops
$1,399Multiple Airlines
Sun, Jun 14 - Wed, Jul 8
American Airlines Logo
3:29 pm - 10:20 am
PHL
-
ADL
29h 21m
2 stops
American Airlines Logo
1:15 pm - 7:00 am
ADL
-
PHL
31h 15m
2 stops
$1,404American Airlines
Sun, Jun 14 - Wed, Jul 8
Qantas Airways Logo
3:29 pm - 9:25 am
PHL
-
ADL
28h 26m
2 stops
Qantas Airways Logo
9:30 am - 7:05 am
ADL
-
PHL
35h 05m
2 stops
$1,407Qantas Airways
Mon, Jun 15 - Mon, Jun 22
American Airlines Logo
3:29 pm - 11:15 am
PHL
-
ADL
30h 16m
2 stops
American Airlines Logo
1:15 pm - 7:00 am
ADL
-
PHL
31h 15m
2 stops
$1,411American Airlines
Sun, Jun 14 - Wed, Jul 8
Air Canada Logo
6:00 am - 11:50 am
PHL
-
ADL
40h 20m
3 stops
Air Canada Logo
8:00 pm - 10:04 am
ADL
-
PHL
51h 34m
3 stops
$1,416Air Canada
Sun, Jun 14 - Mon, Jul 6
Qantas Airways Logo
5:40 pm - 11:05 am
PHL
-
ADL
27h 55m
2 stops
Qantas Airways Logo
6:00 am - 6:41 pm
ADL
-
PHL
26h 11m
2 stops
$1,443Qantas Airways
Mon, Jun 15 - Tue, Jul 7
Qantas Airways Logo
3:29 pm - 7:55 pm
PHL
-
ADL
38h 56m
2 stops
Qantas Airways Logo
6:00 am - 6:41 pm
ADL
-
PHL
26h 11m
2 stops
$1,465Qantas Airways
Mon, Jun 15 - Tue, Jul 7

United Airlines flights from Philadelphia to Adelaide

Our best United Airlines deals on Philadelphia to Adelaide flight tickets
United Airlines
Jun 14
PHL6:23 pmPhiladelphia
27h 17m
2 stops
ADL11:10 amAdelaide
Jul 8
ADL6:05 amAdelaide
36h 56m
3 stops
PHL5:31 amPhiladelphia
$1,491
United Airlines
Jun 17
PHL9:25 amPhiladelphia
36h 00m
2 stops
ADL10:55 amAdelaide
Jul 6
ADL6:40 amAdelaide
36h 21m
3 stops
PHL5:31 amPhiladelphia
$1,496
United Airlines
Oct 4
PHL6:36 pmPhiladelphia
26h 44m
2 stops
ADL11:50 amAdelaide
Nov 1
ADL7:15 amAdelaide
29h 35m
2 stops
PHL10:20 pmPhiladelphia
$1,497

Air New Zealand flights from Philadelphia to Adelaide

Our best Air New Zealand deals on Philadelphia to Adelaide flight tickets
Air New Zealand
Jun 15
PHL6:23 pmPhiladelphia
27h 12m
2 stops
ADL11:05 amAdelaide
Jul 9
ADL6:00 amAdelaide
24h 47m
2 stops
PHL5:17 pmPhiladelphia
$1,545
Air New Zealand
Jun 13
PHL1:04 pmPhiladelphia
32h 21m
2 stops
ADL10:55 amAdelaide
Jul 7
ADL1:25 pmAdelaide
41h 22m
2 stops
PHL5:17 pmPhiladelphia
$2,162
Air New Zealand
Jun 13
PHL1:04 pmPhiladelphia
32h 21m
2 stops
ADL10:55 amAdelaide
Jul 11
ADL11:50 amAdelaide
43h 04m
2 stops
PHL5:24 pmPhiladelphia
$2,173

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 June 3, 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

Sun 6/14

3:29 pm-10:35 pm

2 stops41h 36m

Adelaide

Wed 7/8

6:00 am-6:39 pm

2 stops26h 09m

$1,329

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 6/14

3:29 pm-11:15 am

2 stops30h 16m

Adelaide

Wed 7/8

6:00 am-6:39 pm

2 stops26h 09m

$1,348

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sat 11/7

4:35 pm-6:10 pm

3 stops58h 05m

Adelaide

Sat 11/14

6:55 pm-10:56 pm

3 stops43h 31m

$1,396

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 6/14

5:40 pm-11:55 am

2 stops28h 45m

Adelaide

Wed 7/8

10:10 am-10:17 pm

2 stops25h 37m

$1,399

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 6/14

3:29 pm-10:20 am

2 stops29h 21m

Adelaide

Wed 7/8

1:15 pm-7:00 am

2 stops31h 15m

$1,404

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Mon 6/15

3:29 pm-9:25 am

2 stops28h 26m

Adelaide

Mon 6/22

9:30 am-7:05 am

2 stops35h 05m

$1,407

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 6/14

3:29 pm-11:15 am

2 stops30h 16m

Adelaide

Wed 7/8

1:15 pm-7:00 am

2 stops31h 15m

$1,411

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 6/14

6:00 am-11:50 am

3 stops40h 20m

Adelaide

Mon 7/6

8:00 pm-10:04 am

3 stops51h 34m

$1,416
Quickest round-trip

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Mon 6/15

5:40 pm-11:05 am

2 stops27h 55m

Adelaide

Tue 7/7

6:00 am-6:41 pm

2 stops26h 11m

$1,443

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Mon 6/15

3:29 pm-7:55 pm

2 stops38h 56m

Adelaide

Tue 7/7

6:00 am-6:41 pm

2 stops26h 11m

$1,465

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

26h 44m

Direct flights

None
The fastest flight from Philadelphia to Adelaide takes 26h 44m
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 26h 44m.

  • 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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