AirHint found the following cheapest return flights from New York (LGA) to Sydney (SYD) in September 2026 (see full year).
Return flights
| 16 Sep - 29 Sep | United | ||
| 17 Sep - 04 Oct | United | ||
| 12 Sep - 19 Sep | Qantas | ||
| 17 Sep - 28 Sep | Qantas | ||
| 02 Sep - 30 Sep | Qantas | ||
| 19 Sep - 26 Sep | Qantas |
Also check the deals for one-way flights from New York to Sydney in September.
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