Earn point on your loyalty program!arrow arc left

Cheap flights from Boston (BOS) to Sydney (SYD)

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from Boston (BOS) to Sydney (SYD)

How to find the cheapest flight from Boston (BOS) to Sydney (SYD)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Boston (BOS) to Sydney (SYD)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Boston (BOS) to Sydney (SYD)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from Boston to Sydney in September , October 2026

23 Sep - 23 Oct $ 1,400.00
BOS
Boston
JetBlue Airways
1 STOPS
SYD
Sydney
SYD
Sydney
JetBlue Airways
2 STOPS
BOS
Boston
Pick dates
12 Sep - 02 Oct $ 1,539.00
BOS
Boston
Etihad Airways
1 STOPS
SYD
Sydney
SYD
Sydney
Etihad Airways
1 STOPS
BOS
Boston
Pick dates
06 Sep - 02 Oct $ 2,674.00
BOS
Boston
Alaska Airlines
2 STOPS
SYD
Sydney
SYD
Sydney
Alaska Airlines
2 STOPS
BOS
Boston
Pick dates

Last minute flights from Boston to Sydney

23 Sep - 30 Sep $ 1,452.00
BOS
Boston
JetBlue Airways
2 STOPS
SYD
Sydney
SYD
Sydney
JetBlue Airways
2 STOPS
BOS
Boston
Pick dates
12 Sep - 01 Oct $ 1,553.00
BOS
Boston
Etihad Airways
1 STOPS
SYD
Sydney
SYD
Sydney
Etihad Airways
1 STOPS
BOS
Boston
Pick dates
06 Sep - 30 Sep $ 2,767.00
BOS
Boston
Air Canada
2 STOPS
SYD
Sydney
SYD
Sydney
Air Canada
2 STOPS
BOS
Boston
Pick dates

One-way flights to Sydney from Boston

11:36 AM - 11:30 PM
Qantas
2 Stops
29h 54m
BOS - SYD
$ 786
Kiwi
Pick dates
4:35 PM - 10:25 AM
Etihad Airways
1 Stops
47h 35m
BOS - SYD
$ 794
Kiwi
Pick dates
6:35 PM - 10:45 PM
United Airlines
1 Stops
22h 25m
BOS - SYD
$ 1,179
Kiwi
Pick dates

How to find the cheapest flight from Boston (BOS) to Sydney (SYD)

Related info for your journey
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Boston (BOS) to Sydney (SYD)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Boston (BOS) to Sydney (SYD)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.