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 04/12/25 2 Stopovers (YUL, YVR) AC8611, AC0305, AC0033 47h 45min	Return 04/27/25 2 Stopovers (YVR, YUL) AC0034, AC0304, AC8604 38h 47min	Air Canada		$903 found yesterday
Boston Sydney	Outbound 04/12/25 2 Stopovers (YUL, YVR) AC8605, AC0311, AC0033 30h 30min	Return 04/27/25 2 Stopovers (YVR, YUL) AC0034, AC0304, AC8604 38h 47min	Air Canada	?	$958 found yesterday
Boston Sydney	Outbound 04/21/25 2 Stopovers (YUL, YVR) AC8607, AC0311, AC0033 25h 40min	Return 05/19/25 2 Stopovers (YVR, YUL) AC0034, AC0312, AC8614 50h 44min	Air Canada		$1,091