Boston (BOS) → Sydney (SYD)
About Boston to Sydney Flights
Discover the best flights from Boston to Sydney, covering 16,250 km in approximately 20h 49m. Boston (BOS) to Sydney (SYD) is one of the major long-haul routes connecting United States and Australia. With 7 major airlines operating this route, travelers have plenty of options to choose from. Whether you're traveling for business or leisure, our comprehensive guide helps you find the best deals, understand seasonal price variations, and choose the right airline for your journey from Boston to Sydney.
12-Month Price History
Flight prices from Boston to Sydney vary significantly throughout the year. February typically offers the best deals with average prices around $2749, while July sees the highest prices, averaging $4591. Savvy travelers can save up to 40% by choosing their travel dates wisely.
Best Time to Fly
Cheapest Month
February
Save up to 40% on average
Most Expensive
July
Peak season pricing
Book in Advance
101 days
For best prices
Booking Tips
For the best prices on Boston to Sydney flights, we recommend booking 92 days in advance. International flights typically see price increases as the departure date approaches, so early booking is advisable. Tuesday and Wednesday departures often offer the lowest fares, while Friday and Sunday flights tend to be more expensive due to business and leisure travel demand. Consider flying early morning or late evening for additional savings, as these off-peak times usually have lower demand.
Airlines Serving This Route
| Airline | Economy | Business | First |
|---|---|---|---|
JetBlue Airways B6 | $4350 | $11560 | - |
United Airlines UA | $4360 | $17430 | $24150 |
Jetstar Airways JQ | $4510 | $17220 | $30960 |
Virgin Australia VA | $5340 | $20260 | $30340 |
American Airlines AA | $5410 | $19230 | $29700 |
Delta Air Lines DL | $5770 | $19440 | $25880 |
Qantas QF | $5780 | $19870 | $26780 |
JetBlue Airways
B6
Economy
$4350
Business
$11560
First
-
United Airlines
UA
Economy
$4360
Business
$17430
First
$24150
Jetstar Airways
JQ
Economy
$4510
Business
$17220
First
$30960
Virgin Australia
VA
Economy
$5340
Business
$20260
First
$30340
American Airlines
AA
Economy
$5410
Business
$19230
First
$29700
Delta Air Lines
DL
Economy
$5770
Business
$19440
First
$25880
Qantas
QF
Economy
$5780
Business
$19870
First
$26780
Prices shown are estimates based on historical data. Actual prices may vary based on dates, availability, and current promotions.
Alternative Flight Options
Hartford → Sydney
Bradley International (BDL) to Sydney Kingsford Smith (SYD)
Distance: 16,112 km
Average price: $3272
Portland → Sydney
Portland International Jetport (PWM) to Sydney Kingsford Smith (SYD)
Distance: 16,304 km
Average price: $3309
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Frequently Asked Questions
How long is the flight from Boston to Sydney?
The flight time from Boston (BOS) to Sydney (SYD) is approximately 20 hours and 49 minutes. This duration is for direct flights and may vary depending on aircraft type, weather conditions, and air traffic.
What is the distance between Boston and Sydney?
The aerial distance between Boston and Sydney is 16,250 kilometers (10,097 miles). This is the straight-line distance, which is used to calculate flight times.
Which airlines fly from Boston to Sydney?
Several airlines operate flights between Boston and Sydney, including Delta Air Lines, JetBlue Airways, Qantas and 4 more airlines. Most flights on this route include one or more stops.
What is the cheapest month to fly from Boston to Sydney?
Based on historical data, February typically offers the lowest airfares for flights from Boston to Sydney. However, prices can vary based on holidays, events, and airline promotions. We recommend checking our price calendar for the most up-to-date information.
How far in advance should I book my flight to Sydney?
For the best prices on Boston to Sydney flights, we recommend booking 72 days in advance. International flights generally require earlier booking than domestic routes.
Do I need a visa to travel from Boston to Sydney?
Visa requirements depend on your nationality and the purpose of your visit. Citizens of United States traveling to Australia should check the latest visa requirements. Visit our partner site visarequirements.io for detailed visa information.
What is the time difference between Boston and Sydney?
Boston operates on America/New_York time zone, while Sydney is in the Australia/Sydney time zone. For current time differences and to plan your schedule, visit our partner site timezig.com for accurate timezone conversions.