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$1,525+ Cheap flights from Philadelphia (PHL) to Adelaide (ADL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — ADL
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Philadelphia to Adelaide

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Adelaide (ADL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 31, 2025.

Round-trip from

$1,573
(oojo)
From Philadelphia to Adelaide
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Find flight deals from Philadelphia to Adelaide

Cheapest flights from Philadelphia to Adelaide
Explore the most affordable flight options available from Philadelphia to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This FlightHub deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/276:44 pmPHL - ADL
2 stops27h 21mFiji Airways
Sat 10/412:35 pmADL - PHL
2 stops24h 39mFiji Airways
Deal found 7/28$1,525
This oojo deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/158:05 amPHL - ADL
2 stops36h 20mAir New Zealand
Mon 12/1511:55 amADL - PHL
2 stops26h 20mAir New Zealand
Deal found 7/29$1,573
This oojo deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/128:25 pmPHL - ADL
1 stop29h 55mQatar Airways
Fri 9/199:45 pmADL - PHL
2 stops72h 50mQatar Airways
Deal found 7/29$1,712
This Air Canada deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/127:30 amPHL - ADL
3 stops40h 55mAir Canada
Fri 9/198:00 pmADL - PHL
3 stops51h 24mAir Canada
Deal found 7/29$1,773
This Expedia deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2710:35 amPHL - ADL
3 stops35h 45mMultiple Airlines
Sat 10/44:55 pmADL - PHL
3 stops43h 04mMultiple Airlines
Deal found 7/28$1,791
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/156:29 pmPHL - ADL
2 stops27h 11mUnited Airlines
Mon 12/152:55 pmADL - PHL
1 stop44h 16mUnited Airlines
Deal found 7/29$2,512
This oojo deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/13:51 pmPHL - ADL
2 stops30h 44mQantas Airways
Sun 8/33:50 pmADL - PHL
2 stops28h 45mQantas Airways
Deal found 7/28$2,925

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Philadelphia to Adelaide that are best for you.

Fly from

Philadelphia

Fly to

Adelaide

Route

Depart

Return

Price

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sat 9/27

6:44 pm-11:35 am

2 stops27h 21m

Adelaide

Sat 10/4

12:35 pm-11:44 pm

2 stops24h 39m

$1,525

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Wed 10/15

8:05 am-10:55 am

2 stops36h 20m

Adelaide

Mon 12/15

11:55 am-10:45 pm

2 stops26h 20m

$1,573

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Fri 9/12

8:25 pm-3:50 pm

1 stop29h 55m

Adelaide

Fri 9/19

9:45 pm-9:05 am

2 stops72h 50m

$1,712

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Fri 9/12

7:30 am-1:55 pm

3 stops40h 55m

Adelaide

Fri 9/19

8:00 pm-9:54 am

3 stops51h 24m

$1,773

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sat 9/27

10:35 am-11:50 am

3 stops35h 45m

Adelaide

Sat 10/4

4:55 pm-10:29 pm

3 stops43h 04m

$1,791

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Wed 10/15

6:29 pm-12:10 pm

2 stops27h 11m

Adelaide

Mon 12/15

2:55 pm-7:41 pm

1 stop44h 16m

$2,512

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Best time to book a flight from Philadelphia to Adelaide

Have a flexible travel schedule? Discover the best time to fly to Adelaide from Philadelphia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Philadelphia to Adelaide

What is the cheapest time of day to fly from PHL to ADL?

Find hourly flight availability from Philadelphia to Adelaide. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

It’s optimal to fly from Philadelphia to Adelaide at noon. By choosing this option you can save up to 15% on the cost of your flight, compared to a flight in the morning.

Reviews of airlines servicing Adelaide

Get insights into the airlines that provide service to Adelaide. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Adelaide. Reviews last updated July 31, 2025.
Get a feel of what it's like to fly with Air New Zealand, Qatar Airways, and United Airlines from Philadelphia to Adelaide by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air New Zealand
8.0
Very good
501 reviews

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.4

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
Air New Zealand
8.0
Very good
501 reviews
Air New Zealand
8.0
Very good
501 reviews

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.4

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
Qatar Airways
7.4
Good
3,607 reviews
Air New Zealand
8.0
Very good
501 reviews

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.4

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
United Airlines
7.4
Good
8,896 reviews
Air New Zealand
8.0
Very good
501 reviews

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.4

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
Air Canada
7.1
Good
9,837 reviews
Air New Zealand
8.0
Very good
501 reviews

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.4

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Adelaide. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Philadelphia to Adelaide that include hotel bookings?

    Yes. In addition to deals on Philadelphia to Adelaide flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to Adelaide?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Adelaide.

  • Can I find deals for business class flights from Philadelphia to Adelaide?

    Yes. Cheapflights offers flight deals from Philadelphia to Adelaide by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Philadelphia to Adelaide?

    Currently, August is the cheapest month in which you can book a flight from Philadelphia to Adelaide (average of $1,214). Flying from Philadelphia to Adelaide in December is currently the most expensive (average of $2,057). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Adelaide?

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