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Cheap flights from Boston to Australia from $737

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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SYD
5 May — 12 May1
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 30 April 2025.

Round-trip from

$1,677

One-way from

$737

Popular in

December

Cheapest in

April

Average price

$1,977
5/6-12/6
  • 5/6-12/6
  • 2 total stops
  • 68h 20m total
  • Boston to Australia
Search Deals
9/9
  • 9/9
  • 2 total stops
  • 29h 00m total
  • Boston to Australia
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($532 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($110 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 30 April 2025.

Thu 5/608:00BOS - SYD
1 stop40h 40mMultiple Airlines
Thu 12/616:20SYD - BOS
1 stop27h 40mMultiple Airlines
Deal found 29/4$1,677
Thu 16/1013:55BOS - MEL
3 stops32h 05mMultiple Airlines
Sun 26/1014:30MEL - BOS
3 stops46h 42mMultiple Airlines
Deal found 29/4$1,846
Sat 8/1116:18BOS - SYD
2 stops28h 12mFiji Airways
Sat 15/1114:30SYD - BOS
2 stops24h 36mFiji Airways
Deal found 29/4$1,891
Mon 1/907:30BOS - SYD
2 stops35h 15mAir New Zealand
Tue 30/910:50SYD - BOS
2 stops27h 06mAir New Zealand
Deal found 29/4$1,938
Sat 15/1117:45BOS - SYD
1 stop23h 15mQantas Airways
Sat 6/1207:05SYD - BOS
2 stops31h 57mQantas Airways
Deal found 30/4$2,013
Sun 19/1001:40BOS - SYD
1 stop28h 05mCathay Pacific
Wed 5/1108:45SYD - BOS
1 stop29h 15mCathay Pacific
Deal found 29/4$2,061
Mon 17/1115:20BOS - MEL
2 stops32h 25mAir New Zealand
Mon 24/1108:35MEL - BOS
2 stops30h 45mAir New Zealand
Deal found 28/4$2,078
Mon 20/1022:00BOS - SYD
1 stop29h 10mQatar Airways
Mon 27/1021:40SYD - BOS
1 stop32h 15mQatar Airways
Deal found 29/4$2,130
Mon 20/1021:35BOS - SYD
2 stops31h 25mTurkish Airlines
Wed 5/1121:40SYD - BOS
2 stops36h 25mTurkish Airlines
Deal found 29/4$2,134
Thu 4/921:35BOS - MEL
2 stops31h 50mTurkish Airlines
Wed 17/921:20MEL - BOS
2 stops36h 20mTurkish Airlines
Deal found 29/4$2,136
Sun 31/801:40BOS - BNE
1 stop30h 45mCathay Pacific
Mon 8/923:55BNE - BOS
1 stop37h 05mCathay Pacific
Deal found 29/4$2,170
Wed 5/1121:15BOS - PER
1 stop25h 45mQatar Airways
Sat 15/1122:45PER - BOS
1 stop28h 10mQatar Airways
Deal found 29/4$2,186

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 30 April 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

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Thu 5/6

08:00-14:40

1 stop40h 40m

Sydney Kingsford Smith

Thu 12/6

16:20-06:00

1 stop27h 40m

$1,677

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Thu 16/10

13:55-13:00

3 stops32h 05m

Melbourne

Sun 26/10

14:30-22:12

3 stops46h 42m

$1,846

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Mon 1/9

07:30-08:45

2 stops35h 15m

Sydney Kingsford Smith

Tue 30/9

10:50-23:56

2 stops27h 06m

$1,938

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Sun 19/10

01:40-20:45

1 stop28h 05m

Sydney Kingsford Smith

Wed 5/11

08:45-22:00

1 stop29h 15m

$2,061

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Tue 12/8

17:31-10:50

2 stops27h 19m

Melbourne

Tue 26/8

08:35-23:28

2 stops28h 53m

$2,114

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Mon 20/10

22:00-18:10

1 stop29h 10m

Sydney Kingsford Smith

Mon 27/10

21:40-14:55

1 stop32h 15m

$2,130

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Mon 20/10

21:35-20:00

2 stops31h 25m

Sydney Kingsford Smith

Wed 5/11

21:40-18:05

2 stops36h 25m

$2,134

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Thu 4/9

21:35-19:25

2 stops31h 50m

Melbourne

Wed 17/9

21:20-19:40

2 stops36h 20m

$2,136

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Sun 31/8

01:40-22:25

1 stop30h 45m

Brisbane

Mon 8/9

23:55-23:00

1 stop37h 05m

$2,170

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Mon 20/10

10:20-08:20

2 stops31h 00m

Sydney Kingsford Smith

Mon 27/10

10:20-20:18

2 stops24h 58m

$2,208

Flights are sorted by cheapest return flights first.

Deals found on 29/4

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 30 April 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.

Rainfall in Australia by month

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

In terms of precipitation, rainfall in Australia ranges from 50.0 - 130.0 inches per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Australia when rainfall is around 50.0 mm.

Temperature in Australia by month

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

If weather is an important factor for your trip to Australia, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 11.0 C).

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 30 April 2025.
Get a feel of what it's like to fly with Air Tahiti Nui, Korean Air and Japan Airlines from Boston to Australia by reading reviews from past customers. 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.
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Crew

9.1

Entertainment

7.3

Food

7.8

Boarding

8.7

Overall

8.8

Comfort

8.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Air Tahiti Nui
8.8
Very Good
62 reviews
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Crew

9.1

Entertainment

7.3

Food

7.8

Boarding

8.7

Overall

8.8

Comfort

8.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Korean Air
8.4
Very Good
1,068 reviews
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Crew

9.1

Entertainment

7.3

Food

7.8

Boarding

8.7

Overall

8.8

Comfort

8.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Japan Airlines
8.3
Very Good
1,459 reviews
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Crew

9.1

Entertainment

7.3

Food

7.8

Boarding

8.7

Overall

8.8

Comfort

8.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Fiji Airways
8.1
Very Good
190 reviews
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Crew

9.1

Entertainment

7.3

Food

7.8

Boarding

8.7

Overall

8.8

Comfort

8.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Singapore Airlines
8.1
Very Good
1,292 reviews
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Crew

9.1

Entertainment

7.3

Food

7.8

Boarding

8.7

Overall

8.8

Comfort

8.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

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.

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

    The cheapest airline one-way is Qatar Airways, with whom users have recently found tickets for as low as $1,187. However, be on the lookout for offers from Etihad Airways and Air New Zealand, 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 30 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$1,191Average$1,939FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest$1,273Average$2,472FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Qantas AirwaysCheapest$2,139Average$2,487FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights

Fly with Cheapflights

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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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