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$937+ Cheap flights from Philadelphia (PHL) to Adelaide (ADL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — ADL
May 18 — May 251
Sun 5/18
Sun 5/25
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 May 13, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars
Provider with most accurate pricing for Philadelphia-Adelaide flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Adelaide flights.
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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 May 13, 2025.

This StudentUniverse deal was found by Cheapflights users on 5/12. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/164:10 pmPHL - ADL
2 stops30h 25mQantas Airways
Sun 5/256:00 amADL - PHL
2 stops38h 55mQantas Airways
Deal found 5/12$1,671
This FlightHub deal was found by Cheapflights users on 5/12. 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.
Thu 12/185:16 pmPHL - ADL
2 stops27h 29mFiji Airways
Mon 1/121:25 pmADL - PHL
2 stops25h 57mFiji Airways
Deal found 5/12$2,111
This oojo deal was found by Cheapflights users on 5/12. 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 5/168:45 pmPHL - ADL
1 stop29h 35mQatar Airways
Sun 5/2512:15 pmADL - PHL
2 stops58h 15mQatar Airways
Deal found 5/12$2,124
This United Airlines deal was found by Cheapflights users on 5/12. 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.
Thu 12/188:00 amPHL - ADL
2 stops34h 00mUnited Airlines
Mon 1/122:55 pmADL - PHL
3 stops41h 57mUnited Airlines
Deal found 5/12$2,745
This Air Canada deal was found by Cheapflights users on 5/12. 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 5/1611:05 amPHL - ADL
3 stops37h 40mMultiple Airlines
Sun 5/258:00 pmADL - PHL
3 stops39h 58mMultiple Airlines
Deal found 5/12$2,803
This Air Canada deal was found by Cheapflights users on 5/12. 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.
Thu 12/1810:35 amPHL - ADL
3 stops38h 05mAir Canada
Mon 1/126:00 amADL - PHL
3 stops32h 26mAir Canada
Deal found 5/12$4,053

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 May 13, 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

Fri 10/10

9:00 pm-12:35 pm

2 stops49h 05m

$937

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Fri 10/10

6:30 am-4:15 pm

3 stops43h 15m

$1,743

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Fri 10/10

8:35 pm-4:50 pm

1 stop29h 45m

$1,945

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Fri 10/10

6:48 pm-4:15 pm

2 stops30h 57m

$2,692

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/12

Compare providers for flights from Philadelphia to Adelaide

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Adelaide in May.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Philadelphia-Adelaide flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Philadelphia-Adelaide flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Philadelphia-Adelaide flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Philadelphia-Adelaide flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Adelaide flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 May 13, 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.

Rainfall in Adelaide by month

Plan your trip to Adelaide by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Adelaide ranges from 0.4 - 2.4 inches per month. July is typically the wettest month, when rainfall can reach 2.4 in. January is typically the driest time to visit Adelaide when rainfall is around 0.4 in.

Temperature in Adelaide by month

Plan your trip to Adelaide by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Adelaide, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 51.8 F).

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 May 13, 2025.
Air New Zealand
8.0
Very good
476 reviews

Overall

8.0

Entertainment

7.4

Crew

8.5

Comfort

8.0

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2025

IAH - MSP

wish I didn't have to pay for wifi as I could not redeem my miles from my phone to pay for drinks
Air New Zealand
8.0
Very good
476 reviews
Air New Zealand
8.0
Very good
476 reviews

Overall

8.0

Entertainment

7.4

Crew

8.5

Comfort

8.0

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2025

IAH - MSP

wish I didn't have to pay for wifi as I could not redeem my miles from my phone to pay for drinks
Qantas Airways
7.5
Good
837 reviews
Air New Zealand
8.0
Very good
476 reviews

Overall

8.0

Entertainment

7.4

Crew

8.5

Comfort

8.0

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2025

IAH - MSP

wish I didn't have to pay for wifi as I could not redeem my miles from my phone to pay for drinks
Qatar Airways
7.4
Good
3,570 reviews
Air New Zealand
8.0
Very good
476 reviews

Overall

8.0

Entertainment

7.4

Crew

8.5

Comfort

8.0

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2025

IAH - MSP

wish I didn't have to pay for wifi as I could not redeem my miles from my phone to pay for drinks

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.

  • What are the cheapest airlines to fly from Philadelphia to Adelaide one-way?

    The cheapest airlines for a one-way flight from Philadelphia to Adelaide are Air New Zealand ($1,743), Qatar Airways ($1,945), and Qantas Airways ($2,692).

  • 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.

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