Distance from Boston to Sydney
16,240 km (10,091 miles) — straight-line distance as the crow flies
16,240 km
Kilometers
10,091 miles
Miles
~19h 36m
Est. Flight
15h
Time Difference
Boston
USASydney
AustraliaBoston and Sydney are separated by over 16000 kilometers — roughly the distance of flying across multiple continents.
Boston is known for Harvard & MIT and Freedom Trail, while Sydney is famous for Sydney Opera House and Harbour Bridge.
In terms of city area, Sydney is 53.3x larger than Boston. You can compare their sizes visually on our side-by-side map comparison.
Compare Boston and Sydney side by side
Open Map ComparisonFrequently Asked Questions
How far is Boston from Sydney?
The straight-line (as the crow flies) distance from Boston to Sydney is 16,240 km (10,091 miles).
How long is the flight from Boston to Sydney?
A direct flight would take approximately 19h 36m, based on an average commercial jet speed of 850 km/h.
Is Boston bigger than Sydney?
Sydney is larger at 12,368 km², compared to 232 km².