Book flights from Boston to Australia with Cathay Pacific from USD1,583

Popular flights from Boston to Australia

LEAVING FROM

GOING TO

CABIN CLASS

Boston (BOS)to
Sydney (SYD)
14/12/2025 - 05/01/2026
From
USD3,296
Seen 1 day ago
Round-trip
/
Economy
Boston (BOS)to
Melbourne (MEL)
12/10/2025 - 23/11/2025
From
USD1,583
Seen 1 day ago
Round-trip
/
Economy
Boston (BOS)to
Perth (PER)
28/09/2025 - 22/10/2025
From
USD1,827
Seen 1 hour ago
Round-trip
/
Economy

Best fares on flights found by others in the last 48 hours. (Please note that some fares may only apply when there are multiple travellers.)