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Cheap flights from Philadelphia to Adelaide from $830

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Adelaide departing on 8/28. 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

Find the cheapest flights from Philadelphia to Adelaide

Cheap round-trip flights

Enter your travel dates to find the best prices.
Qatar Airways Logo
8:40 pm - 5:05 pmPHL  Philadelphia-ADL Adelaide
28h 55m1 stop Doha Hamad Intl
Qatar Airways Logo
6:20 pm - 3:05 pmADL  Adelaide-PHL Philadelphia
34h 15m2 stops Perth Doha Hamad Intl
$1,197Qatar Airways
Thu, Jan 14 - Fri, Apr 30
Qatar Airways Logo
8:40 pm - 5:05 pmPHL  Philadelphia-ADL Adelaide
28h 55m1 stop Doha Hamad Intl
Qatar Airways Logo
9:40 pm - 3:05 pmADL  Adelaide-PHL Philadelphia
30h 55m1 stop Doha Hamad Intl
$1,198Qatar Airways
Thu, Jan 14 - Fri, Apr 30
Qatar Airways Logo
8:40 pm - 6:10 pmPHL  Philadelphia-ADL Adelaide
54h 00m2 stops Doha Hamad Intl Melbourne
Qatar Airways Logo
6:20 pm - 3:05 pmADL  Adelaide-PHL Philadelphia
34h 15m2 stops Perth Doha Hamad Intl
$1,223Qatar Airways
Thu, Jan 14 - Fri, Apr 30
Qatar Airways Logo
9:30 pm - 4:30 pmPHL  Philadelphia-ADL Adelaide
28h 30m1 stop Doha Hamad Intl
Qatar Airways Logo
10:00 pm - 2:40 pmADL  Adelaide-PHL Philadelphia
32h 10m1 stop Doha Hamad Intl
$1,224Qatar Airways
Sun, Oct 25 - Sun, Nov 8
Multiple Airlines Logo
9:30 pm - 4:30 pmPHL  Philadelphia-ADL Adelaide
28h 30m1 stop Doha Hamad Intl
Multiple Airlines Logo
6:20 pm - 2:40 pmADL  Adelaide-PHL Philadelphia
35h 50m2 stops Perth Doha Hamad Intl
$1,249Multiple Airlines
Sun, Oct 25 - Sun, Nov 8
Qatar Airways Logo
9:30 pm - 3:00 pmPHL  Philadelphia-ADL Adelaide
28h 00m1 stop Doha Hamad Intl
Qatar Airways Logo
10:00 pm - 2:30 pmADL  Adelaide-PHL Philadelphia
30h 00m1 stop Doha Hamad Intl
$1,260Qatar Airways
Thu, Sep 17 - Thu, Sep 24
Multiple Airlines Logo
9:15 am - 12:35 pmPHL  Philadelphia-ADL Adelaide
36h 50m3 stops Toronto Pearson Intl Vancouver Intl Sydney Kingsford Smith
Multiple Airlines Logo
6:00 am - 10:56 pmADL  Adelaide-PHL Philadelphia
32h 26m3 stops Sydney Kingsford Smith Vancouver Intl Toronto Pearson Intl
$1,311Multiple Airlines
Sun, Oct 25 - Sun, Nov 8
Qatar Airways Logo
9:30 pm - 3:00 pmPHL  Philadelphia-ADL Adelaide
28h 00m1 stop Doha Hamad Intl
Qatar Airways Logo
10:00 pm - 2:30 pmADL  Adelaide-PHL Philadelphia
30h 00m1 stop Doha Hamad Intl
$1,333Qatar Airways
Fri, Sep 18 - Fri, Sep 25
Qatar Airways Logo
9:30 pm - 3:00 pmPHL  Philadelphia-ADL Adelaide
28h 00m1 stop Doha Hamad Intl
Qatar Airways Logo
8:00 pm - 2:30 pmADL  Adelaide-PHL Philadelphia
56h 00m2 stops Sydney Kingsford Smith Doha Hamad Intl
$1,344Qatar Airways
Thu, Sep 17 - Thu, Sep 24
Qatar Airways Logo
9:30 pm - 8:40 pmPHL  Philadelphia-ADL Adelaide
32h 40m2 stops Doha Hamad Intl Melbourne
Qatar Airways Logo
6:20 pm - 2:40 pmADL  Adelaide-PHL Philadelphia
35h 50m2 stops Perth Doha Hamad Intl
$1,352Qatar Airways
Sun, Oct 25 - Sun, Nov 8

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Air Canada flights from Philadelphia to Adelaide

Our best Air Canada deals on Philadelphia to Adelaide flight tickets
Air Canada
Oct 28
PHL9:15 amPhiladelphia
42h 25m
3 stops
ADL6:10 pmAdelaide
Nov 1
ADL6:00 amAdelaide
32h 26m
3 stops
PHL11:56 pmPhiladelphia
$1,451
Air Canada
Oct 28
PHL9:15 amPhiladelphia
42h 25m
3 stops
ADL6:10 pmAdelaide
Nov 1
ADL6:00 amAdelaide
32h 26m
3 stops
PHL11:56 pmPhiladelphia
$1,452
Air Canada
Oct 28
PHL5:05 pmPhiladelphia
56h 35m
3 stops
ADL4:10 pmAdelaide
Nov 1
ADL7:55 pmAdelaide
59h 56m
3 stops
PHL4:21 pmPhiladelphia
$1,501

United Airlines flights from Philadelphia to Adelaide

Our best United Airlines deals on Philadelphia to Adelaide flight tickets
United Airlines
Oct 25
PHL9:45 amPhiladelphia
37h 40m
3 stops
ADL1:55 pmAdelaide
Nov 8
ADL6:10 amAdelaide
26h 35m
2 stops
PHL5:15 pmPhiladelphia
$1,496
United Airlines
Sep 16
PHL9:27 amPhiladelphia
35h 58m
2 stops
ADL10:55 amAdelaide
Sep 23
ADL6:05 amAdelaide
26h 40m
2 stops
PHL7:15 pmPhiladelphia
$1,498
United Airlines
Sep 18
PHL9:27 amPhiladelphia
36h 13m
2 stops
ADL11:10 amAdelaide
Sep 25
ADL6:00 amAdelaide
25h 02m
2 stops
PHL5:32 pmPhiladelphia
$1,596

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 August 6, 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 Philadelphia - ADL Adelaide

PHLADL

Philadelphia

Thu 1/14

8:40 pm-5:05 pm

1 stop28h 55m

Adelaide

Fri 4/30

6:20 pm-3:05 pm

2 stops34h 15m

$1,197

PhiladelphiaAdelaide

PHL Philadelphia - ADL Adelaide

PHLADL

Philadelphia

Thu 1/14

8:40 pm-5:05 pm

1 stop28h 55m

Adelaide

Fri 4/30

9:40 pm-3:05 pm

1 stop30h 55m

$1,198

PhiladelphiaAdelaide

PHL Philadelphia - ADL Adelaide

PHLADL

Philadelphia

Thu 1/14

8:40 pm-6:10 pm

2 stops54h 00m

Adelaide

Fri 4/30

6:20 pm-3:05 pm

2 stops34h 15m

$1,223

PhiladelphiaAdelaide

PHL Philadelphia - ADL Adelaide

PHLADL

Philadelphia

Sun 10/25

9:30 pm-4:30 pm

1 stop28h 30m

Adelaide

Sun 11/8

10:00 pm-2:40 pm

1 stop32h 10m

$1,224

PhiladelphiaAdelaide

PHL Philadelphia - ADL Adelaide

PHLADL

Philadelphia

Sun 10/25

9:30 pm-4:30 pm

1 stop28h 30m

Adelaide

Sun 11/8

6:20 pm-2:40 pm

2 stops35h 50m

$1,249
Quickest round-trip

PhiladelphiaAdelaide

PHL Philadelphia - ADL Adelaide

PHLADL

Philadelphia

Thu 9/17

9:30 pm-3:00 pm

1 stop28h 00m

Adelaide

Thu 9/24

10:00 pm-2:30 pm

1 stop30h 00m

$1,260

PhiladelphiaAdelaide

PHL Philadelphia - ADL Adelaide

PHLADL

Philadelphia

Sun 10/25

9:15 am-12:35 pm

3 stops36h 50m

Adelaide

Sun 11/8

6:00 am-10:56 pm

3 stops32h 26m

$1,311

PhiladelphiaAdelaide

PHL Philadelphia - ADL Adelaide

PHLADL

Philadelphia

Fri 9/18

9:30 pm-3:00 pm

1 stop28h 00m

Adelaide

Fri 9/25

10:00 pm-2:30 pm

1 stop30h 00m

$1,333

PhiladelphiaAdelaide

PHL Philadelphia - ADL Adelaide

PHLADL

Philadelphia

Thu 9/17

9:30 pm-3:00 pm

1 stop28h 00m

Adelaide

Thu 9/24

8:00 pm-2:30 pm

2 stops56h 00m

$1,344

PhiladelphiaAdelaide

PHL Philadelphia - ADL Adelaide

PHLADL

Philadelphia

Sun 10/25

9:30 pm-8:40 pm

2 stops32h 40m

Adelaide

Sun 11/8

6:20 pm-2:40 pm

2 stops35h 50m

$1,352

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Adelaide from

How to get the cheapest flight ticket from Philadelphia to Adelaide

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Philadelphia to Adelaide?

Qatar Airways is the most popular carrier operating from Philadelphia to Adelaide

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 00m

Direct flights

None
The fastest flight from Philadelphia to Adelaide takes 28h 00m
There are no direct flights from Philadelphia to Adelaide. There are no popular flight routes from Philadelphia to Adelaide.
Search flight deals

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 00m.

  • 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.

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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