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Cheap flights from Boston to Australia from $828

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 23/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SYD
3 Sep — 10 Sep1
1 adult

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 29 August 2025.

Round-trip from

$1,502

One-way from

$828

Popular in

December

Cheapest in

April

Average price

$2,075
Air Canada
  • Air Canada
  • 20/11-3/12
  • 4 total stops
  • 69h 17m total
  • Boston to Australia
Search Deals
23/9
  • 23/9
  • 3 total stops
  • 42h 50m total
  • Boston to Australia
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($485 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($98 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

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 29 August 2025.

Thu 20/1110:15BOS - BNE
2 stops31h 30mAir Canada
Wed 3/1210:45BNE - BOS
2 stops37h 47mAir Canada
Deal found 28/8$1,502
Sat 13/1211:43BOS - BNE
1 stop27h 47mQantas Airways
Mon 29/1209:40BNE - BOS
1 stop25h 51mQantas Airways
Deal found 28/8$1,565
Sun 31/810:20BOS - SYD
2 stops31h 00mAir Canada
Sun 14/909:20SYD - BOS
2 stops38h 10mAir Canada
Deal found 28/8$1,570
Tue 9/910:20BOS - SYD
2 stops31h 00mAir Canada
Tue 25/1111:20SYD - BOS
2 stops26h 07mAir Canada
Deal found 27/8$1,571
Tue 2/910:20BOS - SYD
3 stops31h 00mAir Canada
Tue 25/1111:20SYD - BOS
2 stops38h 12mAir Canada
Deal found 27/8$1,582
Tue 23/918:30BOS - SYD
2 stops46h 50mAir Canada
Tue 30/909:20SYD - BOS
2 stops38h 10mAir Canada
Deal found 28/8$1,588
Wed 3/910:40BOS - SYD
2 stops30h 40mAir Canada
Wed 10/909:20SYD - BOS
2 stops38h 35mAir Canada
Deal found 27/8$1,591
Fri 5/908:00BOS - BNE
1 stop31h 25mAmerican Airlines
Sun 14/920:05BNE - BOS
1 stop35h 02mAmerican Airlines
Deal found 27/8$1,600
Sat 8/1112:00BOS - BNE
1 stop26h 00mQantas Airways
Sat 22/1109:40BNE - BOS
1 stop22h 36mQantas Airways
Deal found 28/8$1,609
Thu 11/1205:30BOS - BNE
2 stops36h 15mAir Canada
Thu 25/1210:45BNE - BOS
2 stops23h 57mAir Canada
Deal found 28/8$1,611
Thu 20/1113:00BOS - BNE
3 stops33h 30mMultiple Airlines
Wed 3/1210:45BNE - BOS
2 stops37h 47mMultiple Airlines
Deal found 28/8$1,616
Fri 12/1218:55BOS - BNE
2 stops46h 50mAir Canada
Thu 25/1210:45BNE - BOS
2 stops23h 57mAir Canada
Deal found 28/8$1,622

Cheapflights Fare Finder

 
Customise 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 647,157 searches. Data last updated 29 August 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

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Thu 20/11

10:15-08:45

2 stops31h 30m

Brisbane

Wed 3/12

10:45-09:32

2 stops37h 47m

$1,502

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Wed 25/2

10:15-08:45

2 stops31h 30m

Brisbane

Fri 6/3

10:45-21:27

2 stops25h 42m

$1,502

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Thu 12/2

10:15-08:45

2 stops31h 30m

Brisbane

Sun 22/2

10:45-09:32

2 stops37h 47m

$1,502

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Wed 25/2

14:20-06:30

1 stop25h 10m

Brisbane

Fri 6/3

19:40-06:44

1 stop26h 04m

$1,554

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Sun 14/12

11:30-06:30

1 stop28h 00m

Brisbane

Sun 28/12

11:30-22:21

1 stop25h 51m

$1,565

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Sat 8/11

12:00-05:00

1 stop26h 00m

Brisbane

Sat 22/11

09:40-17:16

1 stop22h 36m

$1,609

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Thu 20/11

13:00-12:10

3 stops32h 10m

Brisbane

Wed 3/12

10:45-09:32

2 stops37h 47m

$1,616

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Wed 25/2

12:22-05:00

2 stops25h 38m

Brisbane

Fri 6/3

09:40-18:52

1 stop24h 12m

$1,617

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Mon 15/12

13:45-07:45

1 stop27h 00m

Brisbane

Fri 9/1

10:45-16:20

1 stop20h 35m

$1,634

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Wed 24/9

18:00-07:05

1 stop23h 05m

Sydney Kingsford Smith

Wed 1/10

09:10-17:07

1 stop21h 57m

$1,654

Flights are sorted by cheapest return flights first.

Deals found on 27/8

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 return 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, May is the cheapest month in which you can book a flight from Boston to Australia (average of $129). Flying from Boston to Australia in October is currently the most expensive (average of $171). 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 29 August 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Boston to Australia as you normally would.

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 29 August 2025.
See what other customers who have flown with Qantas Airways, United Airlines, andAir Canada from Boston to Australia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qantas Airways
7.5
Good
905 reviews
Check prices

Comfort

7.5

Food

6.9

Overall

7.5

Crew

8.2

Entertainment

7.2

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.
Qantas Airways
7.5
Good
905 reviews
Qantas Airways
7.5
Good
905 reviews
Check prices

Comfort

7.5

Food

6.9

Overall

7.5

Crew

8.2

Entertainment

7.2

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.
United Airlines
7.4
Good
8,941 reviews
Qantas Airways
7.5
Good
905 reviews
Check prices

Comfort

7.5

Food

6.9

Overall

7.5

Crew

8.2

Entertainment

7.2

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.
Air Canada
7.1
Good
10,000 reviews
Qantas Airways
7.5
Good
905 reviews
Check prices

Comfort

7.5

Food

6.9

Overall

7.5

Crew

8.2

Entertainment

7.2

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.

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 4.2 km from the city centre, Boston Logan Intl (BOS) is the airport most travellers will use when flying to Australia from Boston.

  • How long is the flight from Boston to Australia?

    There are many flights that can get you from Boston to Australia in 22h 37m. Fly via Air Canada, Qantas Airways, or United Airlines to get the fastest option. The distance from Boston to Australia is about 16240 km. Both multi-stop and direct flights can be found to your destination and back.

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

    The cheapest airline one-way is Fiji Airways, with whom users have recently found tickets for as low as $860. However, be on the lookout for offers from Delta and American Airlines, as they are both options that can get you from Boston to Australia for a low price.

  • 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 holiday 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, May is the cheapest month in which you can book a flight from Boston to Australia (average of $129). Flying from Boston to Australia in October is currently the most expensive (average of $171). 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

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

Top 3 airlines flying from Boston to Australia

Discover the top 3 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 647,157 searches. Data last updated 29 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$1,169Average$2,437FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest$1,249Average$2,552FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Qantas AirwaysCheapest$2,100Average$3,191FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Boston to Australia?

When you search for this flight from Boston to Australia, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Boston to Australia?

Cheapflights simply makes it quick and affordable to book flights from Boston to Australia by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Boston to Australia with no change fees?

Yes! Cheapflights helps users easily find flights from Boston to Australia with no change fees.

Can Cheapflights notify me if prices for flights from Boston to Australia become cheaper?

Yes! Start tracking prices for Boston to Australia flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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