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Cheap flights from Sydney to Boston from $856

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/8. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BOS
18 Aug — 25 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sydney to Boston

Enter your travel dates to find the best prices.

Cheapest flights from Sydney to Boston
Explore the most affordable flight options available from Sydney to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 July 2026.

Thu 16/709:10
SYD
-
BOS
2 stops25h 49m
British Airways
Wed 29/717:33
BOS
-
SYD
1 stop23h 32m
British Airways
Deal found 14/7$1,372
Mon 3/809:10
SYD
-
BOS
2 stops25h 49m
British Airways
Wed 12/816:27
BOS
-
SYD
2 stops24h 38m
British Airways
Deal found 17/7$1,392
Tue 20/1010:20
SYD
-
BOS
2 stops38h 30m
Air Canada
Thu 5/1115:30
BOS
-
SYD
2 stops26h 05m
Air Canada
Deal found 18/7$1,405
Tue 11/809:10
SYD
-
BOS
1 stop21h 34m
Qantas Airways
Tue 18/816:27
BOS
-
SYD
1 stop24h 28m
Qantas Airways
Deal found 13/7$1,406
Tue 11/809:10
SYD
-
BOS
2 stops23h 32m
American Airlines
Tue 18/810:30
BOS
-
SYD
1 stop30h 35m
American Airlines
Deal found 13/7$1,409
Thu 6/812:00
SYD
-
BOS
1 stop23h 05m
Qantas Airways
Mon 17/816:27
BOS
-
SYD
1 stop24h 28m
Qantas Airways
Deal found 15/7$1,410
Thu 6/809:10
SYD
-
BOS
2 stops23h 53m
American Airlines
Mon 17/816:27
BOS
-
SYD
2 stops24h 38m
American Airlines
Deal found 15/7$1,415
Thu 16/709:10
SYD
-
BOS
1 stop21h 28m
American Airlines
Wed 29/717:33
BOS
-
SYD
1 stop23h 32m
American Airlines
Deal found 14/7$1,426

Find flight deals from Sydney to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 19 July 2026.

Round-trip from

$1,392

One-way from

$856

Popular in

July

Cheapest in

January

Average price

$2,268
British Airways
  • British Airways
  • 3/8-12/8
  • 4 total stops
  • 50h 27m total
  • Sydney to Boston
Search Deals
American Airlines
  • American Airlines
  • 17/8
  • 1 total stop
  • 28h 34m total
  • Sydney to Boston
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($296 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($74 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sydney to Boston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 19 July 2026.
Use the filters below to find and compare flights from Sydney to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Thu 6/8

09:30-17:04

2 stops45h 34m

Boston Logan Intl

Thu 13/8

18:35-07:00

1 stop22h 25m

$1,614

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Mon 14/9

10:20-22:59

1 stop26h 39m

Boston Logan Intl

Wed 16/9

14:00-06:55

1 stop26h 55m

$1,662

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Thu 27/8

09:30-21:02

2 stops25h 32m

Boston Logan Intl

Sun 30/8

15:10-07:00

2 stops25h 50m

$1,668

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Sun 30/8

09:15-06:30

2 stops35h 15m

Boston Logan Intl

Sun 6/9

16:30-06:50

1 stop24h 20m

$1,728

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Sat 12/9

09:30-23:38

2 stops28h 08m

Boston Logan Intl

Sat 26/9

14:45-07:00

1 stop26h 15m

$1,774

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Wed 5/8

10:30-22:06

2 stops25h 36m

Boston Logan Intl

Thu 13/8

07:00-07:05

1 stop34h 05m

$1,957

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Wed 30/9

08:55-22:57

2 stops28h 02m

Boston Logan Intl

Sat 31/10

09:26-08:35

3 stops32h 09m

$2,030
Fastest return journey

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Mon 7/9

10:20-17:07

1 stop20h 47m

Boston Logan Intl

Wed 7/10

10:51-08:00

2 stops30h 09m

$2,063

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Fri 2/10

10:20-21:02

1 stop24h 42m

Boston Logan Intl

Wed 7/10

12:45-08:00

2 stops28h 15m

$2,099

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Tue 20/10

11:55-00:54

3 stops27h 59m

Boston Logan Intl

Thu 5/11

07:30-10:35

3 stops35h 05m

$2,478

Flights are sorted by cheapest return flights first.

Deals found on 14/7

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Best time to book a flight from Sydney to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Sydney with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Sydney to Boston

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

To ensure you get the cheapest price possible for a flight from Sydney to Boston, you should look to book at least 29 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Sydney to Boston?

Currently, January is the cheapest month in which you can book a flight from Sydney to Boston (average of $1,200). Flying from Sydney to Boston in July is currently the most expensive (average of $2,268). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Sydney to Boston?

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boston. Reviews last updated 19 July 2026.
Get a feel of what it's like to fly with Delta,Qantas Airways, andUnited Airlines from Sydney to Boston by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,476 reviews
Check prices

Overall

7.8

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
Delta
7.8
Good
8,476 reviews
Delta
7.8
Good
8,476 reviews
Check prices

Overall

7.8

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
Qantas Airways
7.5
Good
1,062 reviews
Delta
7.8
Good
8,476 reviews
Check prices

Overall

7.8

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
United Airlines
7.4
Good
10,006 reviews
Delta
7.8
Good
8,476 reviews
Check prices

Overall

7.8

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
American Airlines
7.1
Good
11,820 reviews
Delta
7.8
Good
8,476 reviews
Check prices

Overall

7.8

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
Air Canada
7.1
Good
11,359 reviews
Delta
7.8
Good
8,476 reviews
Check prices

Overall

7.8

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Related info for your journey

Find useful and relevant information for your journey from Sydney to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Sydney to Boston?

    United Airlines and Delta can get you from Sydney to Boston in just under 35h 15m. Your travel time can differ by up to 10h 19m. Sydney and Boston are separated by a distance of 16240 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from Sydney to Boston round-trip?

    Flying on Virgin Australia is currently your cheapest option to Boston, with prices starting at $710. Additional round-trip tickets that might be worth considering are offered by Air Canada and United Airlines, with the lowest prices starting at $1,075 and $1,139, respectively. Users have found that Virgin Australia is 58% cheaper than the other options available to this destination.

  • Can I find deals for flights from Sydney to Boston that include hotel bookings?

    Yes. In addition to deals on Sydney to Boston flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sydney to Boston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to Boston.

  • Can I find deals for business class flights from Sydney to Boston?

    Yes. Cheapflights offers flight deals from Sydney to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Sydney to Boston?

    Currently, January is the cheapest month in which you can book a flight from Sydney to Boston (average of $1,200). Flying from Sydney to Boston in July is currently the most expensive (average of $2,268). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Watertown
Brookline
Revere
Cambridge
Chestnut Hill

Browse thousands of different options on Cheapflights for your next trip

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Fly from Sydney to Boston on these airlines

Choose from the following airlines for your flight from Sydney to Boston. Flights are based on user searches made on Cheapflights and were last updated on 19 July 2026.
United Airlines flights from Sydney Kingsford Smith to Boston Logan Intl
Air Canada flights from Sydney Kingsford Smith to Boston Logan Intl
Virgin Australia flights from Sydney Kingsford Smith to Boston Logan Intl

Top 7 airlines flying from Sydney to Boston

Discover the top 7 airlines that operate flights from Sydney to Boston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 19 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AustraliaCheapest$710Average$1,543FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
Air CanadaCheapest$1,075Average$1,811FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest$1,139Average$1,575FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$1,185Average$2,040FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Qantas AirwaysCheapest$1,220Average$1,923FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
American AirlinesCheapest$1,265Average$1,749FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air New ZealandCheapest$1,531Average$1,600FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Sydney to Boston?

Deals for Sydney to Boston flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Sydney to Boston?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Sydney to Boston for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Sydney to Boston with no change fees?

Certainly. Search results for flights to Boston from Sydney shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Sydney to Boston become cheaper?

Yes, Cheapflights offers price alerts on Sydney to Boston flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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