Cheapest return flights from Philadelphia to Sydney in October from 3816€

Best time to book flights for Philadelphia (PHL) to Sydney (SYD) flights at AirHint

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

Return flights

16 Oct - 18 Oct Emirates

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

Skyscanner

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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