United flights from Boston to Sydney from $ 1,491* or from $/mo
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Featured daily fares for flights from Boston (BOS) to Sydney (SYD)
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More United deals on Boston (BOS) to Sydney (SYD) flights
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From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| Boston (BOS) | Sydney (SYD) | Roundtrip | Economy | 09/22/25 - 10/28/25 | from $ 1,491 Viewed: 1 day ago |
| Boston (BOS) | Sydney (SYD) | Roundtrip | Economy | 07/07/25 - 07/21/25 | from $ 1,491 Viewed: 5 hours ago |
| Boston (BOS) | Sydney (SYD) | Roundtrip | Economy | 03/02/26 - 03/31/26 | from $ 1,491 Viewed: 22 hours ago |
| Boston (BOS) | Sydney (SYD) | Roundtrip | Economy | 08/03/25 - 08/17/25 | from $ 1,491 Viewed: 5 hours ago |
| Boston (BOS) | Sydney (SYD) | Roundtrip | Economy | 01/23/26 - 02/08/26 | from $ 1,492 Viewed: 1 day ago |
| Boston (BOS) | Sydney (SYD) | Roundtrip | Economy | 02/08/26 - 02/26/26 | from $ 1,492 Viewed: 4 hours ago |
| Boston (BOS) | Sydney (SYD) | Roundtrip | Economy | 06/02/25 - 06/16/25 | from $ 1,493 Viewed: 21 hours ago |
| Boston (BOS) | Sydney (SYD) | Roundtrip | Economy | 11/22/25 - 11/29/25 | from $ 1,493 Viewed: 1 day ago |
| Boston (BOS) | Sydney (SYD) | Roundtrip | Economy | 08/05/25 - 08/19/25 | from $ 1,559 Viewed: 3 hours ago |
| Boston (BOS) | Sydney (SYD) | Roundtrip | Economy | 07/01/25 - 07/15/25 | from $ 1,559 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.
