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

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1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Boston (BOS) to Sydney (SYD)

How to find the cheapest flight from Boston (BOS) to Sydney (SYD)
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How to find the cheapest flight from Boston (BOS) to Sydney (SYD)
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How to find the cheapest flight from Boston (BOS) to Sydney (SYD)
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Cheap flights from Boston to Sydney in April , May 2026

26 Apr - 11 May $ 1,549.00
BOS
Boston
United Airlines
1 STOPS
SYD
Sydney
SYD
Sydney
United Airlines
1 STOPS
BOS
Boston
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12 Apr - 05 May $ 1,799.00
BOS
Boston
Alaska Airlines
2 STOPS
SYD
Sydney
SYD
Sydney
Alaska Airlines
2 STOPS
BOS
Boston
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05 Apr - 05 May $ 3,288.00
BOS
Boston
Alaska Airlines
2 STOPS
SYD
Sydney
SYD
Sydney
Alaska Airlines
2 STOPS
BOS
Boston
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Last minute flights from Boston to Sydney

23 Apr - 30 Apr $ 1,619.00
BOS
Boston
Alaska Airlines
3 STOPS
SYD
Sydney
SYD
Sydney
Alaska Airlines
3 STOPS
BOS
Boston
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12 Apr - 01 May $ 2,221.00
BOS
Boston
Cathay Pacific
2 STOPS
SYD
Sydney
SYD
Sydney
Cathay Pacific
1 STOPS
BOS
Boston
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05 Apr - 30 Apr $ 3,710.00
BOS
Boston
Cathay Pacific
2 STOPS
SYD
Sydney
SYD
Sydney
Cathay Pacific
1 STOPS
BOS
Boston
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One-way flights to Sydney from Boston

12:57 PM - 9:00 AM
Fiji Airways
3 Stops
32h 53m
BOS - SYD
$ 594
Kiwi
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9:50 PM - 9:00 AM
Turkish Airlines
2 Stops
31h 20m
BOS - SYD
$ 739
Kiwi
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6:01 PM - 10:50 PM
United Airlines
1 Stops
22h 54m
BOS - SYD
$ 886
Kiwi
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How to find the cheapest flight from Boston (BOS) to Sydney (SYD)

Related info for your journey
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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.