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Cheap flights from Boston to Australia from $815

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 24/6. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SYD
15 Jun — 22 Jun1
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 16 May 2026.

Wed 28/1018:08
BOS
-
BNE
2 stops28h 42m
Qantas Airways
Sat 14/1113:10
BNE
-
BOS
1 stop23h 08m
Qantas Airways
Deal found 15/5$1,443
Fri 15/513:00
BOS
-
MEL
1 stop27h 45m
American Airlines
Sun 31/509:45
MEL
-
BOS
1 stop35h 20m
American Airlines
Deal found 14/5$1,495
Fri 15/514:22
BOS
-
MEL
2 stops27h 08m
United Airlines
Sun 31/509:30
MEL
-
BOS
2 stops24h 00m
United Airlines
Deal found 14/5$1,510
Tue 26/508:15
BOS
-
MEL
1 stop32h 30m
American Airlines
Tue 11/809:45
MEL
-
BOS
1 stop27h 59m
American Airlines
Deal found 15/5$1,512
Tue 23/614:27
BOS
-
MEL
2 stops26h 18m
American Airlines
Sat 4/709:45
MEL
-
BOS
2 stops24h 51m
American Airlines
Deal found 13/5$1,517
Wed 13/518:20
BOS
-
MEL
1 stop23h 10m
Air New Zealand
Wed 20/509:30
MEL
-
BOS
1 stop21h 25m
Air New Zealand
Deal found 12/5$1,526
Thu 30/711:35
BOS
-
MEL
1 stop30h 40m
United Airlines
Fri 7/810:55
MEL
-
BOS
1 stop24h 26m
United Airlines
Deal found 12/5$1,527
Wed 10/614:40
BOS
-
MEL
2 stops26h 50m
Air New Zealand
Wed 17/609:30
MEL
-
BOS
2 stops24h 40m
Air New Zealand
Deal found 12/5$1,531
Sun 2/806:00
BOS
-
MEL
2 stops36h 15m
United Airlines
Mon 10/810:55
MEL
-
BOS
1 stop22h 04m
United Airlines
Deal found 12/5$1,532
Mon 19/1017:00
BOS
-
MEL
1 stop24h 50m
Delta
Thu 12/1112:00
MEL
-
BOS
1 stop23h 31m
Delta
Deal found 15/5$1,537
Sun 2/806:00
BOS
-
MEL
1 stop36h 15m
United Airlines
Tue 11/810:55
MEL
-
BOS
1 stop22h 15m
United Airlines
Deal found 12/5$1,541
Fri 16/1009:55
BOS
-
MEL
2 stops31h 55m
Delta
Wed 11/1112:00
MEL
-
BOS
1 stop27h 51m
Delta
Deal found 15/5$1,544

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 16 May 2026.

Round-trip from

$1,443

One-way from

$815

Popular in

December

Cheapest in

September

Average price

$1,907
Qantas Airways
  • Qantas Airways
  • 28/10-14/11
  • 3 total stops
  • 51h 50m total
  • Boston to Australia
Search Deals
American Airlines
  • American Airlines
  • 23/6
  • 1 total stop
  • 25h 45m total
  • Boston to Australia
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($382 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 May 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 16 May 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

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Tue 9/6

15:08-08:15

2 stops27h 07m

Melbourne

Tue 23/6

10:55-18:59

1 stop22h 04m

$1,527

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Wed 21/10

13:10-08:50

2 stops28h 40m

Melbourne

Wed 4/11

12:00-19:31

1 stop23h 31m

$1,544

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Sat 6/6

09:07-06:55

1 stop31h 48m

Sydney Kingsford Smith

Tue 16/6

10:20-17:04

1 stop20h 44m

$1,690

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Sat 6/6

16:15-06:55

1 stop24h 40m

Sydney Kingsford Smith

Wed 17/6

10:20-18:59

1 stop22h 39m

$1,690

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Mon 24/8

05:45-07:30

2 stops35h 45m

Melbourne

Mon 31/8

10:55-23:59

2 stops27h 04m

$1,785

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Wed 28/10

15:13-06:30

2 stops25h 17m

Brisbane

Sat 14/11

11:40-18:49

2 stops22h 09m

$1,869
Fastest return journey

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Wed 10/6

15:10-07:00

2 stops25h 50m

Sydney Kingsford Smith

Wed 17/6

10:20-17:04

1 stop20h 44m

$1,874

BostonLaunceston

BOS - LST

BOSLST

Boston Logan Intl

Wed 7/10

22:00-22:55

2 stops33h 55m

Launceston

Mon 19/10

11:30-15:15

2 stops42h 45m

$1,909

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Thu 1/10

22:00-17:30

1 stop29h 30m

Brisbane

Mon 12/10

16:55-15:15

2 stops36h 20m

$1,953

BostonHobart

BOS - HBA

BOSHBA

Boston Logan Intl

Sun 1/11

21:05-09:55

2 stops44h 50m

Hobart

Mon 16/11

06:20-14:20

2 stops48h 00m

$1,954

Flights are sorted by cheapest return flights first.

Deals found on 14/5

Showing 1-10 of 60 resultsSorted by cheapest first
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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

How far ahead should I book a flight from Boston to Australia?

The best time to book flights from Boston to Australia is 15 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, February is the cheapest month in which you can book a flight from Boston to Australia (average of $250). Flying from Boston to Australia in April is currently the most expensive (average of $1,334). 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 16 May 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
1,037 reviews
Check prices

Boarding

7.7

Crew

8.1

Entertainment

7.2

Food

7.0

Overall

7.5

Comfort

7.4

Reviews

1 / 20
2.0
Mediocre

Midhat,Apr 2026

AKL - ADL

Poor as usual. Flight was delayed for more than 4 hours. The Staff was rude. Food was terrible. Very unreliable, unprofessional and unpleasant.
Qantas Airways
7.5
Good
1,037 reviews
Qantas Airways
7.5
Good
1,037 reviews
Check prices

Boarding

7.7

Crew

8.1

Entertainment

7.2

Food

7.0

Overall

7.5

Comfort

7.4

Reviews

1 / 20
2.0
Mediocre

Midhat,Apr 2026

AKL - ADL

Poor as usual. Flight was delayed for more than 4 hours. The Staff was rude. Food was terrible. Very unreliable, unprofessional and unpleasant.
United Airlines
7.4
Good
9,727 reviews
Qantas Airways
7.5
Good
1,037 reviews
Check prices

Boarding

7.7

Crew

8.1

Entertainment

7.2

Food

7.0

Overall

7.5

Comfort

7.4

Reviews

1 / 20
2.0
Mediocre

Midhat,Apr 2026

AKL - ADL

Poor as usual. Flight was delayed for more than 4 hours. The Staff was rude. Food was terrible. Very unreliable, unprofessional and unpleasant.
Air Canada
7.1
Good
11,046 reviews
Qantas Airways
7.5
Good
1,037 reviews
Check prices

Boarding

7.7

Crew

8.1

Entertainment

7.2

Food

7.0

Overall

7.5

Comfort

7.4

Reviews

1 / 20
2.0
Mediocre

Midhat,Apr 2026

AKL - ADL

Poor as usual. Flight was delayed for more than 4 hours. The Staff was rude. Food was terrible. Very unreliable, unprofessional and unpleasant.

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 27h 35m. Fly via United Airlines, Delta, or Qatar Airways to get the fastest option. The distance from Boston to Australia is about 16930 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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, February is the cheapest month in which you can book a flight from Boston to Australia (average of $250). Flying from Boston to Australia in April is currently the most expensive (average of $1,334). 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 16 May 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$584Average$2,325FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest$1,257Average$1,533FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Qantas AirwaysCheapest$1,365Average$2,603FlexibilityNo 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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