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Cheap flights from Adelaide to Philadelphia from $2,546

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/2. Fares are subject to change and may not be available on all flights or dates of travel.
ADL — PHL
30 Aug — 6 Sep1
1 adult

Cheap flight deals from Adelaide to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Adelaide (ADL) to Philadelphia (PHL). 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 25 August 2025.

Round-trip from

$2,546

Popular in

December

Cheapest in

March

Average price

$2,443
Air Canada
  • Air Canada
  • 18/2-22/2
  • 6 total stops
  • 69h 31m total
  • Adelaide to Philadelphia
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($703 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($139 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
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Find flight deals from Adelaide to Philadelphia

Cheapest flights from Adelaide to Philadelphia
Explore the most affordable flight options available from Adelaide to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 August 2025.

Sun 21/920:00ADL - PHL
3 stops40h 59mMultiple Airlines
Sun 28/910:35PHL - ADL
3 stops35h 45mMultiple Airlines
Deal found 24/8$3,116
Sun 21/912:45ADL - PHL
2 stops31h 31mAmerican Airlines
Sun 28/915:40PHL - ADL
2 stops28h 15mAmerican Airlines
Deal found 24/8$3,245
Sun 21/921:40ADL - PHL
1 stop48h 55mQatar Airways
Sun 28/919:00PHL - ADL
2 stops31h 20mQatar Airways
Deal found 24/8$3,442

Cheapflights Fare Finder

 
Customise your flight search to find flights from Adelaide to Philadelphia 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 647,157 searches. Data last updated 25 August 2025.
Use the filters below to find and compare flights from Adelaide to Philadelphia that are best for you.

Fly from

Adelaide

Fly to

Philadelphia

Route

Depart

Return

Price

AdelaidePhiladelphia

ADL - PHL

ADLPHL

Adelaide

Wed 18/2

06:00-22:56

3 stops32h 26m

Philadelphia

Sun 22/2

09:20-13:55

3 stops37h 05m

$2,546

AdelaidePhiladelphia

ADL - PHL

ADLPHL

Adelaide

Wed 18/2

07:50-22:54

2 stops30h 34m

Philadelphia

Sun 22/2

07:05-13:40

2 stops39h 05m

$3,003

AdelaidePhiladelphia

ADL - PHL

ADLPHL

Adelaide

Sun 21/9

20:00-23:29

3 stops40h 59m

Philadelphia

Sun 28/9

10:35-11:50

3 stops35h 45m

$3,116

AdelaidePhiladelphia

ADL - PHL

ADLPHL

Adelaide

Wed 18/2

14:55-21:16

1 stop21h 51m

Philadelphia

Sun 22/2

17:35-09:30

2 stops48h 25m

$3,136

AdelaidePhiladelphia

ADL - PHL

ADLPHL

Adelaide

Sun 21/9

12:45-06:46

2 stops31h 31m

Philadelphia

Sun 28/9

15:40-09:25

2 stops28h 15m

$3,245

AdelaidePhiladelphia

ADL - PHL

ADLPHL

Adelaide

Sun 21/9

21:40-09:05

1 stop48h 55m

Philadelphia

Sun 28/9

19:00-15:50

2 stops31h 20m

$3,442

Flights are sorted by cheapest return flights first.

Deals found on 21/8

Best time to book a flight from Adelaide to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Adelaide with our price prediction graph.
Estimated return 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 Adelaide to Philadelphia

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

Find hourly flight availability from Adelaide to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 25 August 2025.

One of the essential ways to save on airfare from Adelaide to Philadelphia is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the afternoon could potentially save you up to 16% on airfare.

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. 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 Philadelphia. Reviews last updated 25 August 2025.
Get a feel of what it's like to fly with Qantas Airways, Qatar Airways, andAir Canada from Adelaide to Philadelphia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qantas Airways
7.5
Good
898 reviews
Check prices

Food

6.9

Comfort

7.4

Crew

8.2

Overall

7.5

Entertainment

7.2

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.
Qantas Airways
7.5
Good
898 reviews
Qantas Airways
7.5
Good
898 reviews
Check prices

Food

6.9

Comfort

7.4

Crew

8.2

Overall

7.5

Entertainment

7.2

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.
Qatar Airways
7.4
Good
3,608 reviews
Qantas Airways
7.5
Good
898 reviews
Check prices

Food

6.9

Comfort

7.4

Crew

8.2

Overall

7.5

Entertainment

7.2

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.
Air Canada
7.1
Good
10,000 reviews
Qantas Airways
7.5
Good
898 reviews
Check prices

Food

6.9

Comfort

7.4

Crew

8.2

Overall

7.5

Entertainment

7.2

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.

Related info for your journey

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

  • How long is the flight from Adelaide to Philadelphia?

    There are many flights that can get you from Adelaide to Philadelphia in 30h 34m. Fly via Air Canada or American Airlines to get the fastest option. Adelaide and Philadelphia are separated by a distance of 16990 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from Adelaide to Philadelphia round-trip?

    According to our current data, Air Canada ($1,982), Qantas Airways ($1,984), and Qatar Airways ($2,637) offers the cheapest pricing from Adelaide to Philadelphia. You may be able to fly from Adelaide to Philadelphia for 30% less than the average price by searching for these airlines.

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

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

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

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

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

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

See more FAQs

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Alternative routes for Adelaide to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
Adelaide to John F Kennedy Intl flights
Adelaide to LaGuardia flights
Adelaide to Newark flights

Top 3 airlines flying from Adelaide to Philadelphia

Discover the top 3 airlines that operate flights from Adelaide to Philadelphia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 25 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$1,982Average$2,311FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Qantas AirwaysCheapest$1,984Average$3,085FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Qatar AirwaysCheapest$2,637Average$2,946FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Adelaide to Philadelphia?

When you search for this flight from Adelaide to Philadelphia, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Adelaide to Philadelphia?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Adelaide to Philadelphia for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Adelaide to Philadelphia with no change fees?

Certainly. Search results for flights to Philadelphia from Adelaide shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Adelaide to Philadelphia become cheaper?

Not ready to book yet? You can track prices for flights from Adelaide to Philadelphia on Cheapflights with our Price Alert feature and get notified when better prices are available.

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