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Cheap flights from Adelaide to Philadelphia from $1,916

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/1. Fares are subject to change and may not be available on all flights or dates of travel.
ADL — PHL
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Adelaide to Philadelphia

Enter your travel dates to find the best prices.

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 12 December 2025.

Wed 24/1214:55ADL - PHL
1 stop29h 46mUnited Airlines
Sun 28/1208:27PHL - ADL
2 stops57h 33mUnited Airlines
Deal found 12/12$3,205
Wed 24/1206:10ADL - PHL
2 stops40h 29mVirgin Australia
Sun 28/1218:25PHL - ADL
2 stops30h 15mVirgin Australia
Deal found 12/12$3,539
Wed 24/1219:55ADL - PHL
3 stops59h 24mAir Canada
Sun 28/1207:50PHL - ADL
3 stops38h 35mAir Canada
Deal found 12/12$4,611
Wed 24/1214:00ADL - PHL
3 stops48h 16mMultiple Airlines
Sun 28/1207:50PHL - ADL
3 stops43h 40mMultiple Airlines
Deal found 12/12$4,633
Wed 24/1222:00ADL - PHL
1 stop50h 30mQatar Airways
Sun 28/1219:40PHL - ADL
1 stop29h 55mQatar Airways
Deal found 12/12$5,028

Find 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 12 December 2025.

Round-trip from

$1,916

Popular in

January

Cheapest in

June

Average price

$3,047
Air New Zealand
  • Air New Zealand
  • 25/1-1/2
  • 4 total stops
  • 88h 45m total
  • Adelaide to Philadelphia
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($561 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($110 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 12 December 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

Sun 25/1

11:55-11:35

2 stops39h 10m

Philadelphia

Sun 1/2

17:50-10:55

2 stops49h 35m

$1,916

AdelaidePhiladelphia

ADL - PHL

ADLPHL

Adelaide

Sun 25/1

06:00-22:46

3 stops32h 16m

Philadelphia

Sun 1/2

16:05-16:20

3 stops32h 45m

$2,586

AdelaidePhiladelphia

ADL - PHL

ADLPHL

Adelaide

Wed 4/2

22:00-09:00

1 stop50h 30m

Philadelphia

Sun 8/2

19:45-17:05

1 stop29h 50m

$2,688

AdelaidePhiladelphia

ADL - PHL

ADLPHL

Adelaide

Wed 4/2

06:00-22:46

3 stops32h 16m

Philadelphia

Sun 8/2

07:50-13:55

3 stops38h 35m

$2,878

AdelaidePhiladelphia

ADL - PHL

ADLPHL

Adelaide

Wed 4/2

07:50-07:01

2 stops38h 41m

Philadelphia

Sun 8/2

17:39-13:00

2 stops27h 51m

$2,975

Flights are sorted by cheapest return flights first.

Deals found on 11/12

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 month to book a flight from Adelaide to Philadelphia?

Currently, August is the cheapest month in which you can book a flight from Adelaide to Philadelphia (average of $431). Flying from Adelaide to Philadelphia in January is currently the most expensive (average of $2,456). 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.

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 12 December 2025.

One of the essential ways to save on airfare from Adelaide to Philadelphia is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 15% 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 12 December 2025.
Get a feel of what it's like to fly with Qantas Airways and Qatar Airways 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
947 reviews
Check prices

Food

7.0

Comfort

7.5

Crew

8.1

Entertainment

7.2

Boarding

7.7

Overall

7.5

Reviews

1 / 20
6.0
Good

Marco,Dec 2025

BOS - LAX

There was no WiFi or tv traveling from LAX to Sydney. Way too long of a flight to have nothing.
Qantas Airways
7.5
Good
947 reviews
Qantas Airways
7.5
Good
947 reviews
Check prices

Food

7.0

Comfort

7.5

Crew

8.1

Entertainment

7.2

Boarding

7.7

Overall

7.5

Reviews

1 / 20
6.0
Good

Marco,Dec 2025

BOS - LAX

There was no WiFi or tv traveling from LAX to Sydney. Way too long of a flight to have nothing.
Qatar Airways
7.4
Good
3,677 reviews
Qantas Airways
7.5
Good
947 reviews
Check prices

Food

7.0

Comfort

7.5

Crew

8.1

Entertainment

7.2

Boarding

7.7

Overall

7.5

Reviews

1 / 20
6.0
Good

Marco,Dec 2025

BOS - LAX

There was no WiFi or tv traveling from LAX to Sydney. Way too long of a flight to have nothing.

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 39h 10m. Fly via Air New Zealand or Qatar Airways 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, Qantas Airways ($1,826), and Qatar Airways ($2,506) offers the cheapest pricing from Adelaide to Philadelphia. You may be able to fly from Adelaide to Philadelphia for 32% 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.

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

    Currently, August is the cheapest month in which you can book a flight from Adelaide to Philadelphia (average of $431). Flying from Adelaide to Philadelphia in January is currently the most expensive (average of $2,456). 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

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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 LaGuardia flights
Adelaide to Newark flights
Adelaide to John F Kennedy Intl flights

Top 2 airlines flying from Adelaide to Philadelphia

Discover the top 2 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 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,826Average$2,400FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Qatar AirwaysCheapest$2,506Average$2,718FlexibilityNo 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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