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$505+ Cheap flights from Boston (BOS) to Australia

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 11/24. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SYD
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Cheap flight deals from Boston to Australia

Keep the following information in mind while searching for Boston to Australia flight deals. Data was last updated October 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$935
(Air Canada)

One-way from

$505
(Air Canada)

Popular in

December

Cheapest in

March

Average price

$1,434
Provider with most accurate pricing for Boston Logan Intl-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Sydney Kingsford Smith flights.
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From Boston Logan Intl to Australia
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One-way flight from Boston Logan Intl to Australia
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Highest demand for flights based on searches. 13% potential increase in price ($223 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($43 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Boston to Australia

Cheapest flights from Boston to Australia
Explore the most affordable flight options available from Boston to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

This United Airlines deal was found by Cheapflights users on 10/27. 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.
Sun 11/211:00 amBOS - BNE
1 stop29h 30mUnited Airlines
Sun 11/1611:40 amBNE - BOS
1 stop20h 26mUnited Airlines
Deal found 10/27$1,037
This oojo deal was found by Cheapflights users on 10/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1912:00 pmBOS - BNE
1 stop26h 00mQantas Airways
Sun 11/309:40 amBNE - BOS
1 stop25h 50mQantas Airways
Deal found 10/29$1,099
This Cheapflightsfares deal was found by Cheapflights users on 10/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/612:00 pmBOS - MEL
1 stop29h 30mQantas Airways
Sat 12/1312:00 pmMEL - BOS
1 stop26h 19mQantas Airways
Deal found 10/27$1,127
This American Airlines deal was found by Cheapflights users on 10/28. 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.
Fri 12/1211:30 amBOS - MEL
1 stop25h 30mAmerican Airlines
Fri 12/194:05 pmMEL - BOS
1 stop21h 28mAmerican Airlines
Deal found 10/28$1,158
This American Airlines deal was found by Cheapflights users on 10/27. 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.
Sat 12/62:28 pmBOS - MEL
2 stops27h 02mAmerican Airlines
Sat 12/1312:00 pmMEL - BOS
2 stops24h 32mAmerican Airlines
Deal found 10/27$1,165
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Thu 12/412:02 pmBOS - MEL
2 stops29h 28mUnited Airlines
Wed 12/171:00 pmMEL - BOS
1 stop22h 24mUnited Airlines
Deal found 10/28$1,177
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Sat 12/63:25 pmBOS - MEL
2 stops26h 05mUnited Airlines
Mon 12/221:00 pmMEL - BOS
1 stop25h 48mUnited Airlines
Deal found 10/27$1,184
This Air Canada deal was found by Cheapflights users on 10/27. 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.
Sun 11/163:40 pmBOS - SYD
2 stops25h 55mAir Canada
Fri 1/1611:20 amSYD - BOS
3 stops38h 12mAir Canada
Deal found 10/27$1,186
This American Airlines deal was found by Cheapflights users on 10/28. 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 12/298:00 amBOS - MEL
1 stop33h 30mAmerican Airlines
Thu 1/1511:05 amMEL - BOS
2 stops23h 54mAmerican Airlines
Deal found 10/28$1,189
This Booking.com deal was found by Cheapflights users on 10/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/113:40 pmBOS - BNE
2 stops50h 05mAir Canada
Thu 12/1810:45 amBNE - BOS
2 stops47h 57mAir Canada
Deal found 10/27$1,192
This American Airlines deal was found by Cheapflights users on 10/27. 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.
Sat 12/62:44 pmBOS - MEL
2 stops26h 46mAmerican Airlines
Mon 12/227:00 amMEL - BOS
2 stops26h 09mAmerican Airlines
Deal found 10/27$1,193
This Gurufare deal was found by Cheapflights users on 10/28. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/26:06 pmBOS - MEL
1 stop42h 54mQantas Airways
Tue 12/164:05 pmMEL - BOS
1 stop20h 43mQantas Airways
Deal found 10/28$1,194

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Australia 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 October 29, 2025.
Use the filters below to find and compare flights from Boston to Australia that are best for you.

Fly from

Boston

Fly to

Australia

Route

Depart

Return

Price

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Thu 12/4

12:50 pm-10:00 am

2 stops29h 10m

Melbourne

Wed 12/17

11:30 am-4:54 pm

1 stop21h 24m

$1,179

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Fri 1/30

5:45 am-9:30 am

2 stops35h 45m

Melbourne

Sun 2/8

1:00 pm-9:42 pm

1 stop24h 42m

$1,184

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Fri 1/30

6:17 pm-9:30 am

1 stop23h 13m

Melbourne

Sat 2/14

1:00 pm-11:57 pm

2 stops26h 57m

$1,184

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Fri 1/30

6:17 pm-9:30 am

1 stop23h 13m

Melbourne

Fri 2/13

1:00 pm-9:44 pm

1 stop24h 44m

$1,184

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Wed 1/28

6:17 pm-9:30 am

1 stop23h 13m

Melbourne

Wed 2/11

1:00 pm-9:45 pm

1 stop24h 45m

$1,184

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Tue 1/27

8:25 am-9:30 am

1 stop33h 05m

Melbourne

Thu 2/12

1:00 pm-11:57 pm

2 stops26h 57m

$1,184

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Fri 1/30

8:25 am-9:30 am

1 stop33h 05m

Melbourne

Wed 2/11

1:00 pm-9:45 pm

1 stop24h 45m

$1,184

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Mon 2/2

5:57 pm-10:00 am

1 stop24h 03m

Melbourne

Tue 2/10

1:00 pm-7:51 pm

1 stop22h 51m

$1,184

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Wed 2/18

5:28 pm-8:20 am

1 stop23h 52m

Brisbane

Fri 2/27

10:40 am-4:30 pm

1 stop20h 50m

$1,207

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Sat 2/7

8:00 am-5:00 am

1 stop30h 00m

Brisbane

Sat 2/14

9:40 am-5:07 pm

1 stop22h 27m

$1,211

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 60 results
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Best time to book a flight from Boston to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia from Boston 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 Boston to Australia

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

Currently, September is the cheapest month in which you can book a flight from Boston to Australia (average of $253). Flying from Boston to Australia in January is currently the most expensive (average of $1,011). 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 BOS to AU?

Find hourly flight availability from Boston to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 29, 2025.

It’s typically best to fly out from Boston to Australia in the evening. Doing so could potentially save you 51% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Boston to Australia?

Use this chart to determine the cheapest time to fly round-trip from Boston to Australia. Price data was last updated on December 1, 2024.

Travelers seeking maximum savings on their Boston to Australia flight should consider departing on Saturday at noon when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Australia

Get insights into the airlines that provide service to Australia. 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 Australia. Reviews last updated October 29, 2025.
Read through reviews of airlines operating flights from Boston to Australia, such as Delta, Qantas Airways, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,994 reviews

Crew

8.5

Overall

7.9

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,994 reviews
Delta
7.9
Good
7,994 reviews

Crew

8.5

Overall

7.9

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Qantas Airways
7.5
Good
924 reviews
Delta
7.9
Good
7,994 reviews

Crew

8.5

Overall

7.9

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
9,001 reviews
Delta
7.9
Good
7,994 reviews

Crew

8.5

Overall

7.9

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,032 reviews
Delta
7.9
Good
7,994 reviews

Crew

8.5

Overall

7.9

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Air Canada
7.1
Good
10,371 reviews
Delta
7.9
Good
7,994 reviews

Crew

8.5

Overall

7.9

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

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

  • What airport do you fly from for flights from Boston to Australia?

    Located just 2.6 mi from the city center, Boston Logan Intl (BOS) is the airport most travelers will use when flying to Australia from Boston.

  • How long is the flight from Boston to Australia?

    Departing from Boston to Australia will take you 23h 52m. The distance between Boston and Australia is about 9759 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as $539. Users have also found prices from $561 and $623 on Qantas Airways and American Airlines, respectively.

  • What are the most popular routes from Boston to Australia?

    The most popular route from Boston to Australia is Boston Logan Intl - Sydney Kingsford Smith. You may also consider Boston Logan Intl - Melbourne or Boston Logan Intl - Melbourne Avalon.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boston to Australia 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 Boston to Australia?

    Currently, September is the cheapest month in which you can book a flight from Boston to Australia (average of $253). Flying from Boston to Australia in January is currently the most expensive (average of $1,011). 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

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Alternative routes for Boston to Australia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Boston to Australia

Discover the top 10 airlines that operate flights from Boston to Australia. 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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$248Average$1,437FlexibilityNo cancel feeOn-time62%
DeltaCheapest$441Average$1,275FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$735Average$1,299FlexibilityNo cancel feeOn-time67%
Fiji AirwaysCheapest$740Average$1,439FlexibilityNo cancel feeOn-time74%
United AirlinesCheapest$774Average$1,644FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$918Average$1,497FlexibilityNo cancel feeOn-time71%
Qantas AirwaysCheapest$1,022Average$1,736FlexibilityNo cancel feeOn-time74%
Air New ZealandCheapest$1,228Average$1,798FlexibilityNo cancel feeOn-time78%
Cathay PacificCheapest$1,251Average$1,517FlexibilityNo cancel feeOn-time72%
Qatar AirwaysCheapest$1,272Average$1,667FlexibilityNo cancel feeOn-time68%

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