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Our cheapest offers for flights from Boston to Australia

Here you can compare cheap flights from Boston (BOS) to Australia for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Australia. Prices and availability may change at any time.

Flights from Boston (BOS) to Sydney (SYD)

	Outbound	Return	Airlines	Baggage	Price
Boston Sydney	Outbound 03/02/25 2 Stopovers (LAX, HNL) AA0404, AA0297, JQ0004 35h 35min	Return 03/07/25 2 Stopovers (HNL, SFO) JQ0003, AS0876, AS0356 39h 26min	American Airlines, Jetstar Airways	?	$1,076
Boston Sydney	Outbound 03/02/25 1 Stopover (SFO) UA2400, UA0863 23h 21min	Return 03/07/25 2 Stopovers (LAX, ORD) UA0842, UA2039, UA1989 26h 26min	United Airlines		$1,229
Boston Sydney	Outbound 02/19/25 2 Stopovers (BWI, LAX) NK2072, NK1912, UA0839 35h 05min	Return 03/10/25 2 Stopovers (HNL, SFO) JQ0003, AS0876, AS0356 38h 41min	Spirit Airlines, United Airlines	?	$1,231