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Boston (BOS) » Australia » BOS to SYD
Good to Know - Flights from Boston to Sydney
January
Best time to beat the crowds
June
Most popular time to fly
$ 1,175.11
or less (round trip)
Top Tips for Finding Cheap Flights from Boston to Sydney
Looking for cheap airfare from Boston to Sydney? 25% of our users found round-trip tickets to Sydney for the following price or less: $ 1,175.11 Book at least 4 weeks before departure in order to get a below-average price. High season is considered to be June. The cheapest month to fly from Boston to Sydney is January. Enter your preferred departure airport and travel dates into the search form above to unlock the latest Boston to Sydney flight deals.
FAQs - Booking from Boston to Sydney flights
A flight from Boston to Sydney takes 1day.
The cheapest flight Boston to Sydney found on flyus.com in the last 72 hours was $1,175.11 round-trip.
Find cheap flights from Boston to Sydney and book discounted airfare from different cities all over the United States. Explore airline ticket deals on flight routes all over the World! At Flyus, we take pride in helping you discover and book the best flight deals for your next trip at the cheapest price. We make booking flights from different departures easy and provide you with peace of mind with our Best Purchase Guarantee.
Cheapest Flights
from Boston, United States (BOS) to:
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Sydney, Australia (SYD)Oct 28, 25 - Nov 04, 25$1,175.11
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Sydney, Australia (SYD)Nov 03, 25 - Nov 17, 25$1,187.25
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Sydney, Australia (SYD)Feb 13, 25 - Mar 06, 25$1,237.31
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Sydney, Australia (SYD)Mar 14, 25 - Mar 27, 25$1,237.31
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Sydney, Australia (SYD)Feb 21, 25 - Mar 10, 25$1,237.31