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$626+ Cheap flights from Sydney (SYD) to Boston (BOS)

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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BOS
Jul 14 — Jul 211
Tue 7/14
Tue 7/21
1 adult, Economy
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Cheap flight deals from Sydney to Boston

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 June 14, 2026.

This Flighttix deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/289:10 am
SYD
-
BOS
2 stops23h 37m
British Airways
Tue 8/43:19 pm
BOS
-
SYD
2 stops25h 46m
British Airways
Deal found 6/13$975
This Bravofly deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/139:10 am
SYD
-
BOS
1 stop21h 28m
Qantas Airways
Wed 7/295:33 pm
BOS
-
SYD
1 stop23h 32m
Qantas Airways
Deal found 6/9$995
This American Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/139:10 am
SYD
-
BOS
2 stops23h 37m
American Airlines
Wed 7/297:00 am
BOS
-
SYD
1 stop34h 05m
American Airlines
Deal found 6/10$999
This American Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/289:10 am
SYD
-
BOS
1 stop28h 33m
American Airlines
Tue 8/45:33 pm
BOS
-
SYD
1 stop23h 32m
American Airlines
Deal found 6/13$1,001
This American Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/159:10 am
SYD
-
BOS
1 stop35h 25m
American Airlines
Mon 6/2912:39 pm
BOS
-
SYD
1 stop28h 16m
American Airlines
Deal found 6/14$1,003

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 June 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$975
(Flighttix)

One-way from

$626
(United Airlines)

Popular in

July

Cheapest in

January

Average price

$1,325
Provider with most accurate pricing for Sydney Kingsford Smith-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Boston Logan Intl flights.
Search Deals
From Sydney Kingsford Smith to Boston Logan Intl
Search Deals
One-way flight from Sydney Kingsford Smith to Boston Logan Intl
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($153 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated June 14, 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 round-trip
Quickest round-trip

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Mon 7/27

10:20 am-6:59 pm

1 stop22h 39m

Boston Logan Intl

Mon 8/3

6:27 pm-7:00 am

1 stop22h 33m

$1,013

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Mon 7/13

9:30 am-9:21 pm

2 stops25h 51m

Boston Logan Intl

Wed 7/29

3:10 pm-7:00 am

2 stops25h 50m

$1,017

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Thu 7/16

9:30 am-11:21 pm

2 stops27h 51m

Boston Logan Intl

Wed 7/29

3:54 pm-7:00 am

2 stops25h 06m

$1,018

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Thu 11/12

12:10 pm-7:59 pm

2 stops23h 49m

Boston Logan Intl

Mon 11/16

3:13 pm-9:05 am

2 stops25h 52m

$1,279

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Thu 9/17

10:20 am-5:07 pm

1 stop20h 47m

Boston Logan Intl

Tue 10/20

11:30 am-7:55 am

1 stop29h 25m

$1,299

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Tue 7/28

10:20 am-6:59 pm

1 stop22h 39m

Boston Logan Intl

Tue 8/4

6:26 pm-7:00 am

1 stop22h 34m

$1,303

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Sun 10/11

11:20 am-7:11 pm

1 stop22h 51m

Boston Logan Intl

Mon 10/26

6:00 pm-9:15 am

1 stop24h 15m

$1,314

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Mon 7/13

9:15 am-9:02 am

2 stops37h 47m

Boston Logan Intl

Wed 7/29

7:10 am-6:50 am

2 stops33h 40m

$1,398

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Fri 10/30

11:45 am-7:18 am

2 stops34h 33m

Boston Logan Intl

Thu 11/12

7:10 am-8:45 am

3 stops33h 35m

$1,456
Cheapest one-way

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Tue 8/25

9:30 am-11:59 pm

3 stops28h 29m

$626

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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

Compare providers for flights from Sydney to Boston

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sydney to Boston in June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
Thrive TravelPrice Accuracy3 starsTrust Score*2 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Sydney-Boston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sydney-Boston flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sydney-Boston flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sydney-Boston flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sydney-Boston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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?

Booking 29 days in advance of your planned departure date is, on average, the best time to get cheap flights from Sydney to Boston. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 $838). Flying from Sydney to Boston in July is currently the most expensive (average of $1,584). 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 to fly round-trip 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 June 14, 2026.
Read reviews from past customers who have flown Delta,Qantas Airways, andUnited Airlines from Sydney to Boston. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,405 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.8

Food

7.2

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
Delta
7.9
Good
8,405 reviews
Delta
7.9
Good
8,405 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.8

Food

7.2

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
Qantas Airways
7.5
Good
1,046 reviews
Delta
7.9
Good
8,405 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.8

Food

7.2

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
United Airlines
7.4
Good
9,820 reviews
Delta
7.9
Good
8,405 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.8

Food

7.2

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,

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?

    For as low as $1,013, United Airlines can have you in Boston from Sydney in 33h 38m. Sydney and Boston are separated by a distance of 10091 mi.

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

    Currently priced at $829, United Airlines will fly you from Sydney to Boston and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Qantas Airways - these airlines can fly you to your destination from $839 and $900, respectively. United Airlines is priced at 30% lower than the current average price of a flight leaving 3 months from now.

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

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $497. Users have also found prices from $499 and $503 on United Airlines and Delta, respectively.

  • 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 vacation 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 $838). Flying from Sydney to Boston in July is currently the most expensive (average of $1,584). 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

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Waltham
Cambridge
Concord
Brockton
Watertown
Hampton Beach
Seekonk
Cranston
Warwick
Peabody
Auburn
York Beach
Chelsea
Londonderry
Dedham
Swansea
Old Orchard Beach
Lowell
Smithfield
Braintree

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Sydney to Boston

See prices for flight routes from nearby airports that may be better suited for you.
Sydney to Hartford flights

Top 3 airlines flying from Sydney to Boston

Discover the top 3 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 2,558,603 searches. Data last updated June 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$829Average$1,225FlexibilityNo cancel feeOn-time69%
DeltaCheapest$839Average$1,483FlexibilityNo cancel feeOn-timeN/A
Qantas AirwaysCheapest$900Average$1,106FlexibilityNo cancel feeOn-time74%

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