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$519+ 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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BOS
ene. 11 — ene. 181
dom. 1/11
dom. 1/18
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Sydney Kingsford Smith to Boston Logan Intl are usually found in October or November, booked 46 days in advance, depart on a Thursday or Sunday and return on a Wednesday

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 diciembre 12, 2025.

This BestPriceTravel deal was found by Cheapflights users on 12/10. 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 BestPriceTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/254:00 pmSYD - BOS
2 stops33h 32mAir Canada
jue. 1/810:15 amBOS - SYD
2 stops28h 40mAir Canada
Deal found 12/10$1,204
This Air Canada deal was found by Cheapflights users on 12/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/2511:20 amSYD - BOS
3 stops38h 12mMultiple Airlines
jue. 1/83:15 pmBOS - SYD
2 stops26h 20mMultiple Airlines
Deal found 12/10$1,305
This United Airlines deal was found by Cheapflights users on 12/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/2511:20 amSYD - BOS
2 stops23h 28mUnited Airlines
jue. 1/85:57 pmBOS - SYD
1 stop23h 18mUnited Airlines
Deal found 12/10$1,823
This American Airlines deal was found by Cheapflights users on 12/10. 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.
mié. 12/175:45 pmSYD - BOS
1 stop29h 29mAmerican Airlines
vie. 1/911:00 amBOS - SYD
1 stop30h 00mAmerican Airlines
Deal found 12/10$2,236
This Delta deal was found by Cheapflights users on 12/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/1710:40 amSYD - BOS
2 stops24h 57mDelta
vie. 1/912:30 pmBOS - SYD
2 stops28h 00mDelta
Deal found 12/10$2,246
This BestPriceTravel deal was found by Cheapflights users on 12/10. 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 BestPriceTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/1711:20 amSYD - BOS
2 stops38h 12mAir Canada
vie. 1/96:40 pmBOS - SYD
3 stops46h 55mAir Canada
Deal found 12/10$2,404
This Air New Zealand deal was found by Cheapflights users on 12/11. 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 Air New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/171:55 pmSYD - BOS
2 stops23h 48mMultiple Airlines
vie. 1/96:00 amBOS - SYD
3 stops34h 45mMultiple Airlines
Deal found 12/11$2,696

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 diciembre 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,004
(oojo)

One-way from

$519
(Trip.com)

Popular in

April

Cheapest in

October

Average price

$1,498
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. 3% potential increase in price ($48 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 diciembre 12, 2025.
Use the filters below to find and compare flights from Sydney to Boston that are best for you.

Fly from

Sydney

Fly to

Boston

Route

Depart

Return

Price

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

lun. 2/2

11:20 am-9:32 am

2 stops38h 12m

Boston Logan Intl

jue. 2/19

1:50 pm-9:35 am

2 stops27h 45m

$1,065

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

jue. 2/5

7:20 am-3:29 pm

2 stops24h 09m

Boston Logan Intl

sáb. 2/21

4:39 pm-1:55 pm

2 stops29h 16m

$1,066

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

sáb. 1/24

9:55 pm-3:29 pm

2 stops33h 34m

Boston Logan Intl

sáb. 1/31

5:20 pm-9:20 am

2 stops48h 00m

$1,068

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

vie. 1/30

7:05 am-3:28 pm

2 stops24h 23m

Boston Logan Intl

vie. 2/20

9:10 am-9:20 am

2 stops32h 10m

$1,131

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

jue. 2/5

6:05 am-3:29 pm

2 stops25h 24m

Boston Logan Intl

mié. 2/18

9:10 am-9:20 am

2 stops32h 10m

$1,131

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

dom. 2/1

7:05 am-3:29 pm

2 stops24h 24m

Boston Logan Intl

mié. 2/18

9:10 am-9:50 am

2 stops32h 40m

$1,131

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

vie. 1/30

7:20 am-3:28 pm

2 stops24h 08m

Boston Logan Intl

jue. 2/19

9:10 am-9:50 am

2 stops32h 40m

$1,131

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

lun. 1/26

11:20 am-4:52 pm

1 stop21h 32m

Boston Logan Intl

lun. 2/9

6:17 pm-9:05 am

1 stop22h 48m

$1,182

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

jue. 2/5

10:40 am-4:17 pm

1 stop21h 37m

Boston Logan Intl

sáb. 2/21

8:04 pm-6:50 am

2 stops42h 46m

$1,183

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

sáb. 1/31

5:30 pm-6:25 am

2 stops28h 55m

Boston Logan Intl

mié. 2/18

4:45 pm-9:00 am

1 stop24h 15m

$1,209

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 16 results
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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Sydney-Boston flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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?

Use this chart to determine the optimal time to book a round-trip flight from Sydney to Boston. Price data was last updated on December 5, 2025.

Booking 46 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, October is the cheapest month in which you can book a flight from Sydney to Boston (average of $633). Flying from Sydney to Boston in April is currently the most expensive (average of $1,060). 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.

What is the cheapest time of day to fly from SYD to BOS?

Find hourly flight availability from Sydney to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated diciembre 12, 2025.

When flying from Sydney to Boston, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 34% versus a flight in the afternoon.

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 diciembre 12, 2025.
Read reviews from past customers who have flown Delta, Qantas Airways, and United 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
8,007 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,007 reviews
Delta
7.9
Good
8,007 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Qantas Airways
7.5
Good
947 reviews
Delta
7.9
Good
8,007 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,095 reviews
Delta
7.9
Good
8,007 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 $1,066, Qantas Airways can have you in Boston from Sydney in 24h 09m. 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 35% 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 Air Canada. According to our data, you can fly for as low as $385. Users have also found prices from $497 and $504 on American Airlines and United Airlines, 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, October is the cheapest month in which you can book a flight from Sydney to Boston (average of $633). Flying from Sydney to Boston in April is currently the most expensive (average of $1,060). 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
Cambridge
Medford
Hampton Beach
Watertown
Seabrook
Seekonk
Cranston
Lincoln
Lowell
Smithfield
Peabody
Brockton
Quincy
York Beach
Warwick
Londonderry
Swansea
Old Orchard Beach
Waltham
Chelsea

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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
Albury to Boston flights
Coolangatta to Boston 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 diciembre 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$829Average$1,325FlexibilityNo cancel feeOn-time69%
DeltaCheapest$839Average$1,700FlexibilityNo cancel feeOn-timeN/A
Qantas AirwaysCheapest$900Average$1,342FlexibilityNo cancel feeOn-time74%

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