AirHint found the following cheapest return flights from New York (LGA) to Sydney (SYD) in March 2026 (see full year).

Return flights

30 Mar - 13 Apr	Spirit Airlines
09 Mar - 16 Mar	Spirit Airlines
27 Mar - 14 Apr	Spirit Airlines
10 Mar - 17 Mar	Spirit Airlines
04 Mar - 17 Mar	Spirit Airlines
03 Mar - 09 Mar	Spirit Airlines
24 Mar - 07 Apr	Air Canada
02 Mar - 09 Mar	Spirit Airlines
08 Mar - 15 Mar	Spirit Airlines
05 Mar - 19 Mar	Spirit Airlines
12 Mar - 15 Mar	Spirit Airlines
29 Mar - 14 Apr	Spirit Airlines
15 Mar - 22 Mar	United
03 Mar - 15 Apr	Delta
09 Mar - 15 Mar	Delta
24 Mar - 10 Apr	Air Canada
28 Mar - 18 Apr	United
27 Mar - 12 Apr	Air Canada
10 Mar - 07 Apr	United
27 Mar - 09 Apr	Spirit Airlines

Also check the deals for one-way flights from New York to Sydney in March.

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 New York to Sydney in March from 835€

Return flights