Cheap flights from Boston (BOS) to Sydney (SYD)

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The best prices from Boston Logan Intl to Sydney Kingsford Smith are usually found in March or February, booked 40 days in advance, depart on a Tuesday or Wednesday and return on a Monday

How to find the cheapest flight from
Boston (BOS) to Sydney (SYD)

All the information you need to plan the best BOS to SYD flight in 2021: compare Boston to Sydney flight prices with the expected peak season, weather and rainfall in Sydney.
BOS - SYD
Price
$1,184 - $1,910
SYD
Temperature
51.8 - 71.6 °F
SYD
Precipitation
2 - 5.1 inches

Popular in

December

High demand for flights, 30% potential price rise

Cheapest in

March

Best time to find cheap flights, 11% potential price drop

Round-trip from

$1,184

From Boston Logan Intl to Sydney Kingsford Smith

One-way from

$1,016

One-way flight from Boston Logan Intl to Sydney Kingsford Smith

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Boston to Sydney?

Users have found that leaving on a Monday can be a cost-effective option. It’s possible to save up to 15% on your flight compared to booking on days when demand is much higher.

When is the cheapest time to fly from Boston to Sydney (BOS - SYD)?

One of the essential ways to save on airfare from Boston to Sydney is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 15% on airfare.

How far in advance should I book a flight from Boston to Sydney?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 41 days in advance, which can save you up to 6% on flights from Boston to Sydney compared to booking the week you need them. Waiting 41 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $1,315. For sooner than that we have options available in the next 3 days from $1,384.

What is the cheapest month to fly from Boston to Sydney?

Our data shows that March tends to be the cheapest month to fly to Sydney from Boston. Users have commonly found prices around $1,328 for the month, but tickets can be as low as $993. Due to multiple factors, prepare for potentially higher prices in December.

Cheap flights from Boston to Sydney in October, November 2021

The best prices found for BOS to SYD flights for October, November
6 Nov - 11 Nov
$1,457pp
BOS
Boston Logan Intl
Japan Airlines
   
2 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Japan Airlines
   
2 STOPS
BOS
Boston Logan Intl
6 Nov - 11 Nov
$1,459pp
BOS
Boston Logan Intl
Japan Airlines
   
2 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Japan Airlines
   
2 STOPS
BOS
Boston Logan Intl
6 Nov - 11 Nov
$1,481pp
BOS
Boston Logan Intl
Japan Airlines
   
2 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Japan Airlines
   
2 STOPS
BOS
Boston Logan Intl

Boston Logan Intl to Sydney 2021 flight deals

Cheap flights to Sydney from Boston found for this year
14 Dec - 18 Jan
$1,082pp
BOS
Boston Logan Intl
Multiple Airlines
   
2 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Multiple Airlines
     
3 STOPS
BOS
Boston Logan Intl
14 Dec - 18 Jan
$1,095pp
BOS
Boston Logan Intl
Multiple Airlines
   
2 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Multiple Airlines
   
2 STOPS
BOS
Boston Logan Intl
9 Dec - 15 Dec
$1,150pp
BOS
Boston Logan Intl
Multiple Airlines
     
3 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Multiple Airlines
     
3 STOPS
BOS
Boston Logan Intl

Last minute flights from Boston to Sydney

Late deals on round-trip flights to Sydney from Boston, departing today and this week
3 Nov - 13 Nov
$1,799pp
BOS
Boston Logan Intl
Japan Airlines
   
2 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Japan Airlines
   
2 STOPS
BOS
Boston Logan Intl
29 Oct - 6 Nov
$1,898pp
BOS
Boston Logan Intl
Multiple Airlines
   
2 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Multiple Airlines
   
2 STOPS
BOS
Boston Logan Intl
3 Nov - 13 Nov
$1,924pp
BOS
Boston Logan Intl
Japan Airlines
   
2 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Japan Airlines
   
2 STOPS
BOS
Boston Logan Intl

One-way flights to Kingsford Smith from Boston

The cheapest one-way flights from Boston to Sydney
5:24 am - 3:10 am
Japan Airlines
2 Stops
30h 46m
BOS - SYD
Japan Airlines
$1,016
FareScan
6:15 am - 2:55 am
Singapore Airlines
3 Stops
53h 40m
BOS - SYD
Singapore Airlines
$1,082
KAYAK
5:00 pm - 1:45 pm
Qatar Airways
1 Stop
28h 45m
BOS - SYD
Qatar Airways
$1,083
qatarairways.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Boston</span> to <span class="emphasized">Sydney</span> flights.

Flight FAQs

From Boston to Sydney

Which airlines flying from Boston Logan Intl to Sydney Kingsford Smith have flexible cancellations due to COVID-19?

Virgin Australia, United Airlines, and American Airlines are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Boston to Sydney for under $1,100 on Cheapflights?

Yes, there are multiple flights from Boston to Sydney for under $1,100. The cheapest flight booked recently is on Multiple Airlines for just $1,082, but on average you can expect to pay $1,156.

Are there last-minute flights available from Boston to Sydney for under $1,800?

There are currently 20+ open flights from Boston to Sydney within the next 7 days for less than $1,800.

How popular is this Boston to Sydney flight route?

Within the past month, 37 users have taken a look at flights from Boston Logan Intl to Sydney Kingsford Smith.

What is the cheapest airline to fly from Boston to Sydney round-trip?

Cheapflights users have booked flights from Boston to Sydney round-trip from $1,231. You may be able to fly from Boston to Sydney for 7% less than the average price by searching for this airline.

What are the cheapest airlines to fly from Boston to Sydney one-way?

The cheapest airlines for a one-way flight from Boston to Sydney are Qatar Airways ($878), Japan Airlines ($923), and Singapore Airlines ($1,082).

What are the cheapest flights from Boston to Sydney?

Looking for the cheapest flight from Boston to Sydney? While on average our users pay $2,399, our data indicates the cheapest price to be $498. The most popular route (Boston Logan Intl - Sydney Kingsford Smith), is priced around $1,095.

What are the most popular airlines that fly from Boston to Sydney?

Before booking your flight from Boston to Sydney check out the most popular airlines for this route: Major Airline, American Airlines or Air Canada.

COVID Restrictions

View COVID Travel Restrictions for Sydney, Australia

Do I need a COVID test to fly to Sydney from Boston?

Information is based on travel restrictions from Boston Logan Intl to Sydney Kingsford Smith

Most visitors from Boston Logan Intl will not be allowed to enter Sydney Kingsford Smith.

COVID-19 testing requirements
Visitors from Boston Logan Intl must present a negative RT-PCR (NAAT) test taken 72 hours before departing to Sydney Kingsford Smith.

Quarantine requirements
Visitors from Boston Logan Intl are not required to quarantine after entering Sydney Kingsford Smith.

Documents
Travel Authorization Form - Travelers who are not in an exempt category may request an individual exemption to Australia's travel restrictions using this form.


Do I need a test to fly back to Boston from Sydney?

Returning to Boston Logan Intl from Sydney Kingsford Smith

COVID-19 testing requirements
Visitors from Sydney Kingsford Smith must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Boston Logan Intl.

Quarantine requirements
Visitors from Sydney Kingsford Smith are not required to quarantine after entering Boston Logan Intl.

Hide COVID Travel Restrictions for Sydney, Australia

Destination information for Sydney

Things to know before you go - useful duration and weather info for your trip from Boston to Sydney.
Today's exchange rate
$1 = $1.34
Average temperature for October in Sydney
57.2 °F
Avg rainfall for October in Sydney
5.8 ″

Airports servicing Boston

Airports servicing Sydney

Top 10 airlines flying from Boston Logan Intl to Sydney Kingsford Smith

The chart below displays the airlines Cheapflights users traveling from Boston to Sydney choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
American Airlines
$237 $1,273 No cancel fee 71%
Delta
$466 $1,741 No cancel fee N/A
Hawaiian Airlines
$492 $1,931 No cancel fee 85%
Fiji Airways
$498 $866 No cancel fee 74%
United Airlines
$645 $1,437 No cancel fee 69%
Qantas Airways
$683 $1,194 No cancel fee 74%
Virgin Australia
$738 $1,316 No cancel fee 80%
China Eastern
$904 $1,234 No cancel fee 62%

We couldn't confirm the COVID-19 safety measures taken by China Eastern. Please check directly on their website for additional information.

Air New Zealand
$941 $1,280 No cancel fee 78%
Qatar Airways
$946 $1,274 No cancel fee 68%