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Cheap flights from Boston to Australia from $695

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 18/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SYD
2 May — 9 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Boston to Australia

Enter your travel dates to find the best prices.

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 2 April 2026.

Tue 12/505:50
BOS
-
BNE
2 stops35h 15m
Air Canada
Tue 19/510:15
BNE
-
BOS
2 stops37h 30m
Air Canada
Deal found 28/3$1,438
Tue 19/510:35
BOS
-
BNE
2 stops30h 30m
Air Canada
Tue 26/510:15
BNE
-
BOS
2 stops37h 30m
Air Canada
Deal found 30/3$1,441
Sun 17/505:50
BOS
-
BNE
2 stops35h 15m
Air Canada
Tue 2/610:15
BNE
-
BOS
2 stops37h 30m
Air Canada
Deal found 27/3$1,443
Tue 7/413:00
BOS
-
BNE
2 stops28h 05m
Air Canada
Tue 26/510:15
BNE
-
BOS
2 stops25h 12m
Air Canada
Deal found 31/3$1,462
Mon 6/405:30
BOS
-
BNE
2 stops35h 35m
Air Canada
Mon 25/510:00
BNE
-
BOS
2 stops45h 59m
Air Canada
Deal found 30/3$1,463
Tue 7/410:45
BOS
-
BNE
2 stops30h 20m
Air Canada
Sun 24/510:00
BNE
-
BOS
2 stops26h 39m
Air Canada
Deal found 31/3$1,469
Fri 15/505:50
BOS
-
BNE
2 stops35h 15m
Air Canada
Sun 24/510:00
BNE
-
BOS
2 stops26h 39m
Air Canada
Deal found 31/3$1,501
Tue 5/505:50
BOS
-
BNE
2 stops35h 15m
Air Canada
Wed 13/510:00
BNE
-
BOS
2 stops37h 45m
Air Canada
Deal found 31/3$1,521
Mon 18/510:35
BOS
-
BNE
2 stops30h 30m
Air Canada
Mon 1/610:00
BNE
-
BOS
2 stops37h 45m
Air Canada
Deal found 30/3$1,522
Wed 20/505:10
BOS
-
BNE
2 stops35h 55m
Air Canada
Mon 25/510:00
BNE
-
BOS
2 stops37h 45m
Air Canada
Deal found 29/3$1,544
Wed 11/1121:05
BOS
-
MEL
1 stop34h 15m
Qatar Airways
Wed 18/1123:40
MEL
-
BOS
1 stop30h 40m
Qatar Airways
Deal found 31/3$1,710
Tue 20/1022:00
BOS
-
MEL
1 stop28h 50m
Qatar Airways
Tue 3/1123:40
MEL
-
BOS
1 stop30h 40m
Qatar Airways
Deal found 1/4$1,721

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 2 April 2026.

Round-trip from

$1,438

One-way from

$695

Popular in

December

Cheapest in

September

Average price

$2,158
Air Canada
  • Air Canada
  • 12/5-19/5
  • 4 total stops
  • 72h 45m total
  • Boston to Australia
Search Deals
18/5
  • 18/5
  • 3 total stops
  • 36h 08m total
  • Boston to Australia
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($390 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($95 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 2 April 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 return flight

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Tue 12/5

05:50-07:05

2 stops35h 15m

Brisbane

Tue 19/5

10:15-09:45

2 stops37h 30m

$1,438

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Mon 1/6

12:30-10:55

3 stops32h 25m

Brisbane

Wed 10/6

10:00-09:45

2 stops37h 45m

$1,724

BostonAdelaide

BOS - ADL

BOSADL

Boston Logan Intl

Tue 28/4

13:00-13:55

3 stops35h 25m

Adelaide

Tue 5/5

17:15-09:54

3 stops54h 09m

$1,909

BostonAdelaide

BOS - ADL

BOSADL

Boston Logan Intl

Fri 24/4

19:00-10:20

2 stops49h 50m

Adelaide

Sat 9/5

17:10-16:53

2 stops37h 13m

$2,095

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 7/9

22:00-09:50

2 stops45h 50m

Cairns

Thu 17/9

21:00-15:15

2 stops56h 15m

$2,157

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Mon 27/4

07:45-15:50

2 stops42h 05m

Melbourne

Fri 8/5

17:20-14:40

1 stop35h 20m

$2,166

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Mon 17/8

22:00-18:35

1 stop32h 35m

Perth

Mon 28/9

22:45-15:15

1 stop28h 30m

$2,190

BostonMelbourne

BOS - AVV

BOSAVV

Boston Logan Intl

Sat 4/7

10:50-14:10

3 stops37h 20m

Melbourne Avalon

Sat 25/7

20:55-11:52

3 stops52h 57m

$2,195

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Mon 4/5

15:18-05:00

1 stop23h 42m

Melbourne

Wed 20/5

13:35-21:00

1 stop21h 25m

$2,236

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Sun 19/4

13:52-07:00

2 stops27h 08m

Sydney Kingsford Smith

Sun 3/5

09:30-20:13

2 stops24h 43m

$2,239

Flights are sorted by cheapest return flights first.

Deals found on 31/3

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 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, September is the cheapest month in which you can book a flight from Boston to Australia (average of $362). Flying from Boston to Australia in May is currently the most expensive (average of $1,505). 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 2 April 2026.
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
1,016 reviews
Check prices

Overall

7.5

Crew

8.1

Boarding

7.7

Entertainment

7.2

Comfort

7.4

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Midhat,Feb 2026

WYA - ADL

Frequent delays, 3rd week in a row. Flight attendants not at all friendly.
Qantas Airways
7.5
Good
1,016 reviews
Qantas Airways
7.5
Good
1,016 reviews
Check prices

Overall

7.5

Crew

8.1

Boarding

7.7

Entertainment

7.2

Comfort

7.4

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Midhat,Feb 2026

WYA - ADL

Frequent delays, 3rd week in a row. Flight attendants not at all friendly.
United Airlines
7.4
Good
9,530 reviews
Qantas Airways
7.5
Good
1,016 reviews
Check prices

Overall

7.5

Crew

8.1

Boarding

7.7

Entertainment

7.2

Comfort

7.4

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Midhat,Feb 2026

WYA - ADL

Frequent delays, 3rd week in a row. Flight attendants not at all friendly.
Air Canada
7.1
Good
10,876 reviews
Qantas Airways
7.5
Good
1,016 reviews
Check prices

Overall

7.5

Crew

8.1

Boarding

7.7

Entertainment

7.2

Comfort

7.4

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Midhat,Feb 2026

WYA - ADL

Frequent delays, 3rd week in a row. Flight attendants not at all friendly.

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 35h 15m. Fly via Air Canada, Qantas Airways, or Qatar Airways to get the fastest option. The distance from Boston to Australia is about 15706 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 United Airlines, with whom users have recently found tickets for as low as $600. However, be on the lookout for offers from Virgin Australia and Qantas Airways, 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 - Brisbane or Boston Logan Intl - Melbourne.

  • 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, September is the cheapest month in which you can book a flight from Boston to Australia (average of $362). Flying from Boston to Australia in May is currently the most expensive (average of $1,505). 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 2 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$1,299Average$1,585FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Qantas AirwaysCheapest$1,411Average$2,724FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
United AirlinesCheapest$1,525Average$2,295FlexibilityNo cancel feeOn-time69%
Search United Airlines 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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