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$494+ 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 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BOS
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Sydney Kingsford Smith to Boston Logan Intl are usually found in February or March, booked 32 days in advance, depart on a Thursday or Sunday and return on a Wednesday

Cheap 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 12, 2025.

Round-trip from

$975
(Alaska Airlines)

One-way from

$494
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,433
From Sydney Kingsford Smith to Boston Logan Intl
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One-way flight from Sydney Kingsford Smith to Boston Logan Intl
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Highest demand for flights based on searches. 8% potential increase in price ($133 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find 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 12, 2025.

This lol.travel 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/159:40 pmSYD - BOS
1 stop22h 20mHawaiian Airlines
Tue 7/18:00 amBOS - SYD
1 stop45h 45mHawaiian Airlines
Deal found 6/10$926
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/299:40 pmSYD - BOS
2 stops40h 19mAlaska Airlines
Tue 8/198:19 pmBOS - SYD
2 stops33h 26mAlaska Airlines
Deal found 6/10$975
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/304:20 pmSYD - BOS
2 stops27h 16mMultiple Airlines
Tue 8/198:00 amBOS - SYD
1 stop40h 40mMultiple Airlines
Deal found 6/11$1,098
This Air Canada deal was found by Cheapflights users on 6/12. 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.
Tue 11/1811:20 amSYD - BOS
2 stops24h 58mAir Canada
Tue 11/2510:20 amBOS - SYD
3 stops31h 15mAir Canada
Deal found 6/12$1,134
This BYOjet 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/89:55 amSYD - BOS
2 stops26h 43mAir New Zealand
Thu 10/233:45 pmBOS - SYD
2 stops26h 00mAir New Zealand
Deal found 6/10$1,154
This Delta deal was found by Cheapflights users on 6/12. 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.
Wed 7/309:25 amSYD - BOS
1 stop24h 00mDelta
Mon 8/184:35 pmBOS - SYD
1 stop24h 00mDelta
Deal found 6/12$1,158
This Gotogate deal was found by Cheapflights users on 6/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2010:20 pmSYD - BOS
1 stop39h 40mCathay Pacific
Sat 11/2212:30 amBOS - SYD
1 stop28h 20mCathay Pacific
Deal found 6/11$1,180
This United Airlines deal was found by Cheapflights users on 6/12. 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.
Fri 8/110:20 amSYD - BOS
1 stop23h 18mUnited Airlines
Sat 8/166:25 pmBOS - SYD
1 stop22h 35mUnited Airlines
Deal found 6/12$1,181
This BYOjet deal was found by Cheapflights users on 6/12. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1811:15 amSYD - BOS
1 stop21h 26mQantas Airways
Tue 11/2512:15 pmBOS - SYD
1 stop28h 45mQantas Airways
Deal found 6/12$1,186
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/228:55 amSYD - BOS
2 stops46h 22mJapan Airlines
Sun 7/67:10 amBOS - SYD
2 stops33h 10mJapan Airlines
Deal found 6/10$1,258

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 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

Tue 7/29

9:40 pm-11:59 pm

2 stops40h 19m

Boston Logan Intl

Tue 8/19

8:19 pm-7:45 pm

2 stops33h 26m

$975

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Sun 8/17

9:40 pm-6:00 am

1 stop22h 20m

Boston Logan Intl

Tue 9/2

8:00 am-7:45 pm

1 stop45h 45m

$1,002

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Wed 7/30

4:20 pm-5:36 am

2 stops27h 16m

Boston Logan Intl

Tue 8/19

8:00 am-2:40 pm

1 stop40h 40m

$1,098

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Wed 10/8

9:55 am-9:38 pm

2 stops26h 43m

Boston Logan Intl

Thu 10/23

3:45 pm-8:45 am

2 stops26h 00m

$1,154

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Wed 7/30

9:25 am-7:25 pm

1 stop24h 00m

Boston Logan Intl

Tue 8/19

6:15 pm-6:35 am

1 stop22h 20m

$1,158

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Thu 11/20

10:20 pm-10:00 pm

1 stop39h 40m

Boston Logan Intl

Sat 11/22

12:30 am-8:50 pm

1 stop28h 20m

$1,180

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Fri 8/1

10:20 am-7:38 pm

1 stop23h 18m

Boston Logan Intl

Sat 8/16

6:25 pm-7:00 am

1 stop22h 35m

$1,181

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Mon 10/13

10:20 am-5:38 pm

2 stops46h 18m

Boston Logan Intl

Mon 10/20

10:20 am-8:20 am

2 stops31h 00m

$1,193

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Wed 10/15

10:10 am-11:28 pm

1 stop28h 18m

Boston Logan Intl

Fri 10/31

8:00 am-9:00 am

1 stop34h 00m

$1,255

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Sun 6/22

8:55 am-5:17 pm

2 stops46h 22m

Boston Logan Intl

Sun 7/6

7:10 am-6:20 am

2 stops33h 10m

$1,258

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 26 results
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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 June 9, 2025.

Booking 32 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 $218). Flying from Sydney to Boston in June is currently the most expensive (average of $306). 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 June 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 in the morning, which can drop the price by up to 22% versus a flight at noon.

Rainfall in Boston by month

Plan your trip to Boston by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Boston ranges from 3.1 - 4.0 inches per month. March is typically the wettest month, when rainfall can reach 4.0 in. July is typically the driest time to visit Boston when rainfall is around 3.1 in.

Temperature in Boston by month

Plan your trip to Boston by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Boston, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 12, 2025.
Get a feel of what it's like to fly with Korean Air, Japan Airlines and Singapore Airlines from Sydney to Boston by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,088 reviews

Food

8.1

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Korean Air
8.4
Very good
1,088 reviews
Korean Air
8.4
Very good
1,088 reviews

Food

8.1

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Japan Airlines
8.3
Very good
1,489 reviews
Korean Air
8.4
Very good
1,088 reviews

Food

8.1

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Singapore Airlines
8.1
Very good
1,302 reviews
Korean Air
8.4
Very good
1,088 reviews

Food

8.1

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Delta
8.0
Very good
7,950 reviews
Korean Air
8.4
Very good
1,088 reviews

Food

8.1

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Air New Zealand
8.0
Very good
483 reviews
Korean Air
8.4
Very good
1,088 reviews

Food

8.1

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

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.

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

    Currently priced at $975, Alaska Airlines will fly you from Sydney to Boston and back. In addition to Alaska Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Hawaiian Airlines and Air New Zealand - these airlines can fly you to your destination from $1,002 and $1,154, respectively. Alaska Airlines is priced at 29% 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 $648. Users have also found prices from $706 and $760 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 $218). Flying from Sydney to Boston in June is currently the most expensive (average of $306). 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 Sydney?

Book flights to Sydney if you plan to visit one of these locations
Cambridge
Medford
Watertown
Warwick
Waltham
Framingham
Seabrook
Cranston
Randolph
Chestnut Hill
Lowell
Chelsea
Marlborough
Brockton
York Beach
Saco
Burlington
West Yarmouth
Smithfield
Swansea

Browse thousands of different options on Cheapflights for your next trip

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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 5 airlines flying from Sydney to Boston

Discover the top 5 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 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$895Average$1,460FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$1,081Average$1,271FlexibilityNo cancel feeOn-time71%
Qantas AirwaysCheapest$1,120Average$1,545FlexibilityNo cancel feeOn-time74%
Virgin AustraliaCheapest$1,280Average$1,575FlexibilityNo cancel feeOn-time80%
DeltaCheapest$1,344Average$1,700FlexibilityNo cancel feeOn-timeN/A

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