AirHint found the following cheapest return flights from Philadelphia (PHL) to Sydney (SYD) in November 2025 (see full year).

Return flights

09 Nov - 16 Nov	United
04 Nov - 11 Nov	Qantas
10 Nov - 17 Nov	Qantas
12 Nov - 19 Nov	Qantas
10 Nov - 19 Nov	Qantas
26 Nov - 12 Dec	United
18 Nov - 02 Dec	Qantas
19 Nov - 03 Dec	Qantas
10 Nov - 14 Dec	Qantas
19 Nov - 07 Dec	Qantas
19 Nov - 14 Dec	Qantas
25 Nov - 14 Dec	Qantas
25 Nov - 16 Dec	Qantas
25 Nov - 17 Dec	Qantas
26 Nov - 17 Dec	Qantas
11 Nov - 18 Nov	Qantas
04 Nov - 18 Nov	Qantas
14 Nov - 28 Nov	United
06 Nov - 18 Nov	Qantas
13 Nov - 23 Nov	American Airlines

Also check the deals for one-way flights from Philadelphia to Sydney in November.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Philadelphia to Sydney in November from $830

Return flights