Cheap flights from Philadelphia to Eastern Australia

View AU$1,062 flight on Sun, 21 Sep. 2025Opens in a new window

Popular airlines from Philadelphia to Eastern Australia

  • American Airlines

    American Airlines

  • Air Canada

    Air Canada

  • Qantas Airways

    Qantas Airways

  • United

    United

  • Delta

    Delta

  • Air New Zealand

    Air New Zealand

  • Qatar Airways

    Qatar Airways

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Philadelphia (ILG) to Eastern Australia (MEL)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, 24 Nov. - Tue, 2 Dec.
PHL
Philadelphia
SYD
Sydney
AU$1,822 Return, found 3 days ago
AU$1,822
Return
found 3 days ago
Select United flight, departing Mon, 24 Nov. from Philadelphia to Sydney, returning Tue, 2 Dec., priced at AU$1,822 found 3 days ago
United
Sat, 8 Nov. - Tue, 18 Nov.
ABE
Allentown
SYD
Sydney
AU$1,844 Return, found 2 days ago
AU$1,844
Return
found 2 days ago
Select United flight, departing Sat, 8 Nov. from Allentown to Sydney, returning Tue, 18 Nov., priced at AU$1,844 found 2 days ago
All Nippon Airways
Mon, 24 Nov. - Tue, 2 Dec.
PHL
Philadelphia
SYD
Sydney
AU$1,876 Return, found 3 days ago
AU$1,876
Return
found 3 days ago
Select All Nippon Airways flight, departing Mon, 24 Nov. from Philadelphia to Sydney, returning Tue, 2 Dec., priced at AU$1,876 found 3 days ago
Qantas Airways
Sat, 24 Jan. - Thu, 5 Feb.
PHL
Philadelphia
MEL
Melbourne
AU$1,929 Return, found 3 days ago
AU$1,929
Return
found 3 days ago
Select Qantas Airways flight, departing Sat, 24 Jan. from Philadelphia to Melbourne, returning Thu, 5 Feb., priced at AU$1,929 found 3 days ago
Air Canada
Wed, 8 Apr. - Wed, 15 Apr.
PHL
Philadelphia
SYD
Sydney
AU$2,156 Return, found 1 day ago
AU$2,156
Return
found 1 day ago
Select Air Canada flight, departing Wed, 8 Apr. from Philadelphia to Sydney, returning Wed, 15 Apr., priced at AU$2,156 found 1 day ago
Delta
Sat, 8 Nov. - Tue, 18 Nov.
ABE
Allentown
SYD
Sydney
AU$2,192 Return, found 2 days ago
AU$2,192
Return
found 2 days ago
Select Delta flight, departing Sat, 8 Nov. from Allentown to Sydney, returning Tue, 18 Nov., priced at AU$2,192 found 2 days ago

Find the cheapest month to fly from Philadelphia (PHL) to Sydney (SYD)

February is typically the cheapest month to fly

From AU$1,319 - AU$3,382 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.