Cheap flights from Boston (BOS) to Sydney (SYD) from $655

This is the cheapest one-way flight price, found on 5/30. Prices may vary by date and flight preferences.
BOS — SYD
Jun 5 — Jun 121

The best prices from Boston Logan Intl to Sydney Kingsford Smith are usually found in October or September, booked 60 days in advance, depart on a Wednesday or Sunday and return on a Tuesday

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 2023: compare Boston to Sydney flight prices with the expected peak season, weather and rainfall in Sydney.

Popular in

January

Cheapest in

October

Round-trip from

$1,384

One-way from

$1,267
High demand for flights, 27% potential price rise
Best time to find cheap flights, 18% potential price drop
From Boston Logan Intl to Sydney Kingsford Smith
One-way flight from Boston Logan Intl to Sydney Kingsford Smith

BOS - SYD

Price

$1,384 - $2,759

SYD

Temperature

51.8 - 71.6 °F

SYD

Rainfall

2 - 5.1 inches

Cheap flights from Boston to Sydney in May, June 2023

The best prices found for BOS to SYD flights for May, June
Listed are some of the best fares we've found on flights departing from Boston to Sydney in 2023. For more flight deals, be sure to check back very soon.

Boston to Sydney 2023 flight deals

Cheap flights to Sydney from Boston found for this year
Listed are some of the best fares we've found on flights departing from Boston to Sydney in 2023. For more flight deals, be sure to check back very soon.

Cheap Air Canada flights from Boston to Sydney

Find some of the cheapest Air Canada flights traveling from Boston to Sydney. Make sure to check back often as deals are often changing.

Cheap Qantas Airways flights from Boston to Sydney

To aid your search, here are some of the cheapest Qantas Airways flights we've found from Boston to Sydney. Deals frequently update to provide users with more options.

Last minute flights from Boston to Sydney

Late deals on return flights to Sydney from Boston, departing today and this week
Check out these flights departing soon from Boston to Sydney. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.

One-way flights to Sydney from Boston

The cheapest one-way flights from Boston to Sydney
Some of the best available deals we've found on one-way flights from Boston to Sydney. Users in need of a round-trip flight from Boston to Sydney instead should update the search form at the top of page.

Find flights from Boston to Sydney within your budget

Use the slider to find flights from Boston to Sydney that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$1,186 - $1,436

Route

Depart

Return

Price

Boston Logan IntlSydney Kingsford Smith

BOS - SYD

BOSSYD

Boston Logan Intl

Sun 10/22

2 stops30h 55m

Sydney Kingsford Smith

Sun 11/5

2 stops25h 58m

Boston Logan IntlSydney Kingsford Smith

BOS - SYD

BOSSYD

Boston Logan Intl

Wed 11/1

2 stops35h 20m

Sydney Kingsford Smith

Wed 11/8

2 stops38h 23m

Boston Logan IntlSydney Kingsford Smith

BOS - SYD

BOSSYD

Boston Logan Intl

Sat 10/21

2 stops30h 55m

Sydney Kingsford Smith

Sun 11/5

2 stops25h 58m

Boston Logan IntlSydney Kingsford Smith

BOS - SYD

BOSSYD

Boston Logan Intl

Tue 9/19

2 stops30h 40m

Sydney Kingsford Smith

Thu 10/5

2 stops38h 15m

Boston Logan IntlSydney Kingsford Smith

BOS - SYD

BOSSYD

Boston Logan Intl

Mon 11/13

1 stop30h 37m

Sydney Kingsford Smith

Mon 11/20

1 stop30h 13m

Boston Logan IntlSydney Kingsford Smith

BOS - SYD

BOSSYD

Boston Logan Intl

Mon 11/27

2 stops30h 55m

Sydney Kingsford Smith

Sat 12/9

3 stops25h 51m

Boston Logan IntlSydney Kingsford Smith

BOS - SYD

BOSSYD

Boston Logan Intl

Mon 10/23

1 stop33h 15m

Sydney Kingsford Smith

Sun 11/5

2 stops30h 13m

Boston Logan IntlSydney Kingsford Smith

BOS - SYD

BOSSYD

Boston Logan Intl

Fri 11/3

2 stops26h 00m

Sydney Kingsford Smith

Tue 11/14

3 stops25h 51m

Boston Logan IntlSydney Kingsford Smith

BOS - SYD

BOSSYD

Boston Logan Intl

Fri 11/3

2 stops30h 55m

Sydney Kingsford Smith

Tue 11/14

3 stops25h 51m

Flights are sorted by cheapest first

Deals found on 5/30

Reviews of Airlines Servicing Sydney

Peruse reviews from past customers who have flown with Air Canada, Qantas Airways and Air New Zealand from Boston to Sydney to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Fiji Airways
8.2
Very good
31 reviews

Overall

8.2

Crew

8.7

Boarding

8.7

Food

8.0

Entertainment

8.4

Comfort

8.2

Reviews

1 / 10

Make sure guy get the Australian visa before you go to the gate.

Fiji Airways
8.2
Very good
31 reviews
Fiji Airways
8.2
Very good
31 reviews

Overall

8.2

Crew

8.7

Boarding

8.7

Food

8.0

Entertainment

8.4

Comfort

8.2

Reviews

1 / 10

Make sure guy get the Australian visa before you go to the gate.

Delta
8.0
Very good
2,369 reviews
Fiji Airways
8.2
Very good
31 reviews

Overall

8.2

Crew

8.7

Boarding

8.7

Food

8.0

Entertainment

8.4

Comfort

8.2

Reviews

1 / 10

Make sure guy get the Australian visa before you go to the gate.

United Airlines
7.6
Good
1,531 reviews
Fiji Airways
8.2
Very good
31 reviews

Overall

8.2

Crew

8.7

Boarding

8.7

Food

8.0

Entertainment

8.4

Comfort

8.2

Reviews

1 / 10

Make sure guy get the Australian visa before you go to the gate.

LATAM Airlines
7.4
Good
394 reviews
Fiji Airways
8.2
Very good
31 reviews

Overall

8.2

Crew

8.7

Boarding

8.7

Food

8.0

Entertainment

8.4

Comfort

8.2

Reviews

1 / 10

Make sure guy get the Australian visa before you go to the gate.

Cathay Pacific
7.3
Good
148 reviews
Fiji Airways
8.2
Very good
31 reviews

Overall

8.2

Crew

8.7

Boarding

8.7

Food

8.0

Entertainment

8.4

Comfort

8.2

Reviews

1 / 10

Make sure guy get the Australian visa before you go to the gate.

Related info for your journey

Useful info, stats and facts about Boston to Sydney flights.

Top 10 airlines flying from Boston to Sydney

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.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Fiji AirwaysCheapest$908Average$1,527FlexibilityNo cancel feeOn-time74%COVID-19 safety
Search Fiji Airways flights
Air CanadaCheapest$999Average$1,510FlexibilityNo cancel feeOn-time67%COVID-19 safety
Search Air Canada flights
Hawaiian AirlinesCheapest$1,051Average$2,069FlexibilityNo cancel feeOn-time85%COVID-19 safety
Search Hawaiian Airlines flights
American AirlinesCheapest$1,296Average$1,919FlexibilityNo cancel feeOn-time71%COVID-19 safety
Search American Airlines flights
Cathay PacificCheapest$1,308Average$1,782FlexibilityNo cancel feeOn-time72%COVID-19 safety
Search Cathay Pacific flights
DeltaCheapest$1,347Average$2,067FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights
British AirwaysCheapest$1,361Average$1,675FlexibilityNo cancel feeOn-time70%COVID-19 safety
Search British Airways flights
United AirlinesCheapest$1,396Average$2,107FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights
Qantas AirwaysCheapest$1,521Average$2,510FlexibilityNo cancel feeOn-time74%COVID-19 safety
Search Qantas Airways flights
Qatar AirwaysCheapest$1,551Average$1,782FlexibilityNo cancel feeOn-time68%COVID-19 safety
Search Qatar Airways flights
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.