Flight Routes from Boston to Sydney

Trip type

Our cheapest offers for flights from Boston to Sydney

Here you can compare cheap flights from Boston (BOS) to Sydney (SYD) 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 Sydney. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Boston
Sydney
Outbound
06/25/26
1 Stopover (YYZ)
AC0767, AC0033
36h 10min
Return
06/30/26
2 Stopovers (YVR, YYZ)
AC0034, AC0104, AC0772
23h 02min
Air Canada
$1,354
Best option
Boston
Sydney
Outbound
08/20/26
1 Stopover (SFO)
UA2400, UA0863
22h 42min
Return
08/25/26
1 Stopover (SFO)
UA0870, UA2634
26h 39min
United Airlines ?
$1,372
Boston
Sydney
Outbound
10/01/26
2 Stopovers (ORD, HND)
NH7787, NH0111, NH0879
28h 12min
Return
10/11/26
2 Stopovers (HND, SFO)
NH0880, NH0108, UA1665
49h 31min
ANA All Nippon Airways
$1,384
Boston
Sydney
Please note: transfer for connecting flight
Outbound
08/20/26
1 Stopover (LAX)
B60387, QF0012
45h 05min
Return
08/25/26
1 Stopover (LAX)
QF0011, B60488
26h 59min
JetBlue Airways, Qantas Airways
$1,556
Boston
Sydney
Outbound
06/25/26
1 Stopover (YYZ)
AC0767, AC0033
36h 10min
Return
06/30/26
1 Stopover (YYZ)
AC0034, AC0764
27h 18min
Air Canada ?
$1,381
Boston
Sydney
Outbound
06/25/26
2 Stopovers (YYZ, YVR)
AC0767, AC0033, AC0033
36h 10min
Return
06/30/26
2 Stopovers (YVR, YYZ)
AC0034, AC0104, AC0772
23h 02min
Air Canada ?
$1,399
Boston
Sydney
Outbound
10/01/26
2 Stopovers (ORD, HND)
NH7795, NH0111, NH0879
30h 40min
Return
10/11/26
2 Stopovers (HND, SFO)
NH0880, NH0108, UA0796
47h 26min
ANA All Nippon Airways ?
$1,405
Boston
Sydney
Outbound
06/25/26
2 Stopovers (YYZ, YVR)
AC0767, AC0105, AC0033
36h 10min
Return
06/30/26
2 Stopovers (YVR, YYZ)
AC0034, AC0114, AC0766
38h 33min
Air Canada
$1,461
Boston
Sydney
Outbound
08/20/26
2 Stopovers (YUL, YVR)
AC0753, AC0315, AC0033
25h 45min
Return
08/25/26
2 Stopovers (YVR, YYZ)
AC0034, AC0104, AC0764
27h 18min
Air Canada
$1,463
Boston
Sydney
Outbound
10/01/26
1 Stopover (LAX)
UA0639, UA0839
22h 20min
Return
10/11/26
1 Stopover (SFO)
UA0870, UA2634
26h 37min
United Airlines
$1,475
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Boston to Sydney

Favorite airline: e.g. American Airlines, Air Canada
The favorite airline for flights from Boston to Sydney is American Airlines.
American Airlines
20 %
Air Canada
20 %
Air New Zealand
16 %
Favourite connection: via Los Angeles
62 % of booked tickets on this route are for flights with a transfer in Los Angeles.
Route
bookings
1 stopover Los Angeles International Airport, CA
22h 55min, from $1,328
62 %
2 stopovers New York - John F. Kennedy International Airport, NY Tokyo-Haneda International Airport
31h 16min, from $1,596
25 %
2 stopovers San Francisco International Airport, CA Auckland
35h 30min, from $1,376
12 %

Important flight information

Flight information: Boston - Sydney

Roundtrip from $1,353.89
Distance 16269 km
Departure airport Airport Boston Logan International Airport, MA (BOS)
Arrival airport Airport Sydney-Kingsford Smith International Airport, NSW (SYD)
Destination country Flights to Australia
Departure airport - Destination country Boston Logan International Airport, MA - Australia
Alternative flights to Sydney
Flight destinations with a similar price
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