Flight Routes from Boston to Sydney

Trip type

Our cheapest offers for flights from Boston (BOS) to Sydney (SYD)

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
09/01/26
2 Stopovers (LAX, NAN)
AA2141, FJ0811, FJ0911
35h 20min
Return
09/09/26
2 Stopovers (NAN, LAX)
FJ0910, FJ0810, AA2453
32h 58min
American Airlines, Fiji Airways ?
$1,197
Boston
Sydney
Outbound
09/01/26
2 Stopovers (IAD, SFO)
UA0721, UA1757, UA0863
26h 27min
Return
09/09/26
1 Stopover (LAX)
UA0842, UA1783
22h 11min
United Airlines
$1,279
Best option
Boston
Sydney
Outbound
09/01/26
1 Stopover (SFO)
UA0304, UA0863
33h 10min
Return
09/09/26
1 Stopover (SFO)
UA0870, UA2647
20h 47min
United Airlines
$1,291
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
09/01/26
2 Stopovers (DEN, SFO)
UA2297, UA1389, UA0863
25h 45min
Return
09/09/26
2 Stopovers (SFO, ORD)
UA0870, UA1568, UA2466
22h 59min
United Airlines
$1,294
Boston
Sydney
Outbound
09/01/26
1 Stopover (LAX)
QF4482, QF4112
45h 28min
Return
09/09/26
1 Stopover (LAX)
QF4111, QF3264
28h 18min
Qantas Airways ?
$1,340
Boston
Sydney
Outbound
09/01/26
2 Stopovers (LAX, SFO)
UA0360, UA2019, UA0863
32h 40min
Return
09/09/26
2 Stopovers (LAX, PDX)
UA0842, AS1397, AS0436
34h 39min
United Airlines ?
$1,346
Boston
Sydney
Outbound
09/01/26
2 Stopovers (ORD, SFO)
UA1475, UA0649, UA0863
25h 25min
Return
09/09/26
2 Stopovers (LAX, ORD)
UA0842, UA1946, UA2466
23h 49min
United Airlines ?
$1,371
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
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 $1,196.17
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
Flight destinations with a similar price