Australia

$657+ 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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SYD
May 15 — May 221
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Cheap 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 April 15, 2026.

This Jetabroad deal was found by Cheapflights users on 4/13. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/285:57 pm
BOS
-
MEL
2 stops35h 23m
Multiple Airlines
Thu 6/47:30 am
MEL
-
BOS
2 stops29h 39m
Multiple Airlines
Deal found 4/13$1,154
This Air Canada deal was found by Cheapflights users on 4/10. 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.
Wed 10/2110:40 am
BOS
-
SYD
2 stops30h 40m
Air Canada
Wed 10/2810:20 am
SYD
-
BOS
2 stops38h 17m
Air Canada
Deal found 4/10$1,269
This Air Canada deal was found by Cheapflights users on 4/10. 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.
Sun 5/105:50 am
BOS
-
SYD
2 stops35h 30m
Air Canada
Sun 5/179:20 am
SYD
-
BOS
2 stops38h 25m
Air Canada
Deal found 4/10$1,270
This Orbitz deal was found by Cheapflights users on 4/10. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:55 pm
BOS
-
SYD
2 stops46h 25m
Air Canada
Wed 10/2810:20 am
SYD
-
BOS
2 stops24h 57m
Air Canada
Deal found 4/10$1,275
This FlightHub deal was found by Cheapflights users on 4/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/176:50 pm
BOS
-
SYD
2 stops46h 30m
Air Canada
Wed 5/279:20 am
SYD
-
BOS
2 stops38h 25m
Air Canada
Deal found 4/11$1,280
This FlightHub deal was found by Cheapflights users on 4/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/85:00 pm
BOS
-
SYD
2 stops48h 20m
Air Canada
Sun 8/309:20 am
SYD
-
BOS
2 stops38h 30m
Air Canada
Deal found 4/10$1,285
This FlightHub deal was found by Cheapflights users on 4/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2110:30 am
BOS
-
SYD
1 stop30h 35m
Qantas Airways
Fri 10/307:05 am
SYD
-
BOS
2 stops27h 37m
Qantas Airways
Deal found 4/13$1,288
This FlightHub deal was found by Cheapflights users on 4/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/910:35 am
BOS
-
SYD
3 stops30h 45m
Air Canada
Tue 6/169:20 am
SYD
-
BOS
2 stops26h 07m
Air Canada
Deal found 4/11$1,289
This Air Canada deal was found by Cheapflights users on 4/10. 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.
Mon 6/110:35 am
BOS
-
SYD
2 stops30h 45m
Air Canada
Thu 6/119:20 am
SYD
-
BOS
2 stops38h 25m
Air Canada
Deal found 4/10$1,290
This oojo deal was found by Cheapflights users on 4/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1710:30 am
BOS
-
SYD
1 stop30h 35m
Qantas Airways
Sat 10/315:50 pm
SYD
-
BOS
2 stops39h 26m
Qantas Airways
Deal found 4/14$1,292
This Expedia deal was found by Cheapflights users on 4/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/147:25 pm
BOS
-
SYD
2 stops46h 10m
Air Canada
Sat 11/2811:20 am
SYD
-
BOS
2 stops38h 17m
Air Canada
Deal found 4/10$1,295
This Air Canada deal was found by Cheapflights users on 4/13. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2910:45 am
BOS
-
MEL
3 stops34h 20m
Multiple Airlines
Fri 6/58:50 pm
MEL
-
BOS
3 stops39h 49m
Multiple Airlines
Deal found 4/13$1,311

Find flight deals from Boston to Australia

Keep the following information in mind while searching for Boston to Australia flight deals. Data was last updated April 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,154
(Jetabroad)

One-way from

$657
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$1,523
Provider with most accurate pricing for Boston Logan Intl-Sydney Kingsford Smith flight deals.
Provider most trusted by Cheapflights users for Boston Logan Intl-Sydney Kingsford Smith flights.
From Boston Logan Intl to Australia
One-way flight from Boston Logan Intl to Australia
Highest demand for flights based on searches. 10% potential increase in price ($181 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($46 potential savings vs. average RT price).
Average for round-trip flights in April 2026

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 April 15, 2026.
Use the filters below to find and compare flights from Boston to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonMelbourne

BOS - AVV

BOSAVV

Boston Logan Intl

Fri 6/19

10:50 am-2:10 pm

3 stops37h 20m

Melbourne Avalon

Sat 7/25

8:55 pm-10:38 pm

3 stops39h 43m

$1,346

BostonMelbourne

BOS - AVV

BOSAVV

Boston Logan Intl

Fri 6/19

10:50 am-2:10 pm

3 stops37h 20m

Melbourne Avalon

Mon 7/20

8:55 pm-9:53 am

3 stops50h 58m

$1,346

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Mon 4/27

6:00 am-7:05 am

2 stops35h 05m

Sydney Kingsford Smith

Sun 5/10

9:10 am-8:44 am

2 stops37h 34m

$1,368

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Mon 5/25

5:50 am-7:05 am

2 stops35h 15m

Brisbane

Mon 6/1

10:00 am-9:45 am

2 stops37h 45m

$1,380

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Sun 7/5

10:40 am-7:05 am

2 stops30h 25m

Brisbane

Wed 7/15

6:05 pm-10:38 pm

3 stops42h 33m

$1,439

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Fri 5/29

10:55 am-6:50 am

1 stop29h 55m

Sydney Kingsford Smith

Fri 6/12

9:15 am-11:54 pm

1 stop28h 39m

$1,440

BostonMelbourne

BOS - AVV

BOSAVV

Boston Logan Intl

Sun 6/28

10:50 am-2:10 pm

3 stops37h 20m

Melbourne Avalon

Thu 7/16

8:55 pm-9:53 am

3 stops50h 58m

$1,459

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Fri 7/3

5:52 pm-10:05 am

2 stops26h 13m

Brisbane

Sun 7/19

8:35 pm-8:31 am

1 stop25h 56m

$1,466

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Sat 7/4

10:30 am-5:00 am

1 stop28h 30m

Brisbane

Thu 12/10

6:30 am-4:52 pm

2 stops25h 22m

$1,513

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Tue 5/5

4:21 pm-11:25 pm

2 stops41h 04m

Brisbane

Tue 5/12

8:45 pm-12:04 am

2 stops41h 19m

$1,522

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/11

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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 $251). Flying from Boston to Australia in July is currently the most expensive (average of $1,114). 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.

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 April 15, 2026.
Read through reviews of airlines operating flights from Boston to Australia, such as Delta,Qantas Airways, andQatar Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Comfort

7.9

Overall

7.9

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.

Entertainment

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Comfort

7.9

Overall

7.9

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.

Entertainment

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Comfort

7.9

Overall

7.9

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.

Entertainment

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Comfort

7.9

Overall

7.9

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.

Entertainment

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Comfort

7.9

Overall

7.9

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.

Entertainment

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Comfort

7.9

Overall

7.9

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 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 26h 13m. 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 United Airlines. According to our data, you can fly for as low as $445. Users have also found prices from $459 and $498 on Air Canada and Qatar Airways, respectively.

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

  • 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 $251). Flying from Boston to Australia in July is currently the most expensive (average of $1,114). 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

Browse thousands of different options on Cheapflights for your next trip

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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 April 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$251Average$277FlexibilityNo cancel feeOn-time62%
DeltaCheapest$317Average$1,506FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$583Average$1,575FlexibilityNo cancel feeOn-time69%
Fiji AirwaysCheapest$727Average$1,260FlexibilityNo cancel feeOn-time74%
Air New ZealandCheapest$862Average$1,441FlexibilityNo cancel feeOn-time78%
Air CanadaCheapest$907Average$1,290FlexibilityNo cancel feeOn-time67%
Qatar AirwaysCheapest$972Average$1,597FlexibilityNo cancel feeOn-time68%
American AirlinesCheapest$991Average$1,478FlexibilityNo cancel feeOn-time71%
Qantas AirwaysCheapest$1,021Average$1,607FlexibilityNo cancel feeOn-time74%
Cathay PacificCheapest$1,318Average$1,907FlexibilityNo cancel feeOn-time72%

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