Travelers have found it’s best to book a flight 46 days in advance to save up to 16% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 46 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Massachusetts to Sydney 1-2 weeks in advance for as low as $972, or $1089 for flights within the next 24 hours.
Due to multiple factors, expect to potentially pay more when booking in December. For low rates, March can be a great choice for travel to Sydney. Flights to Sydney from Massachusetts in March are about $1040 on average during March, but can be found for as low as $734.