United flights from Boston to Sydney from $ 1,491* or from $/mo

Featured daily fares for flights from Boston (BOS) to Sydney (SYD)

$ 1.5K
$ 2.0K
Displaying fares for May-2025
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Range$ 1,493-$ 1,959

More United deals on Boston (BOS) to Sydney (SYD) flights

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More United deals on Boston (BOS) to Sydney (SYD) flights
From
To
Fare Type
Dates
Price
Boston (BOS)Sydney (SYD)Roundtrip
|
Economy
09/22/25 - 10/28/25

from

$ 1,491
or from $133/mo

Viewed: 1 day ago

Boston (BOS)Sydney (SYD)Roundtrip
|
Economy
07/07/25 - 07/21/25

from

$ 1,491
or from $133/mo

Viewed: 5 hours ago

Boston (BOS)Sydney (SYD)Roundtrip
|
Economy
03/02/26 - 03/31/26

from

$ 1,491
or from $133/mo

Viewed: 22 hours ago

Boston (BOS)Sydney (SYD)Roundtrip
|
Economy
08/03/25 - 08/17/25

from

$ 1,491
or from $133/mo

Viewed: 5 hours ago

Boston (BOS)Sydney (SYD)Roundtrip
|
Economy
01/23/26 - 02/08/26

from

$ 1,492
or from $133/mo

Viewed: 1 day ago

Boston (BOS)Sydney (SYD)Roundtrip
|
Economy
02/08/26 - 02/26/26

from

$ 1,492
or from $133/mo

Viewed: 4 hours ago

Boston (BOS)Sydney (SYD)Roundtrip
|
Economy
06/02/25 - 06/16/25

from

$ 1,493
or from $134/mo

Viewed: 21 hours ago

Boston (BOS)Sydney (SYD)Roundtrip
|
Economy
11/22/25 - 11/29/25

from

$ 1,493
or from $134/mo

Viewed: 1 day ago

Boston (BOS)Sydney (SYD)Roundtrip
|
Economy
08/05/25 - 08/19/25

from

$ 1,559
or from $139/mo

Viewed: 3 hours ago

Boston (BOS)Sydney (SYD)Roundtrip
|
Economy
07/01/25 - 07/15/25

from

$ 1,559
or from $139/mo

Viewed: 3 hours ago

*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.