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Cheap flights from Boston to Australia from $909

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 13/8. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SYD
15 May — 22 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 15 April 2026.

Thu 28/517:57
BOS
-
MEL
2 stops35h 23m
Multiple Airlines
Thu 4/607:30
MEL
-
BOS
2 stops29h 39m
Multiple Airlines
Deal found 13/4$1,614
Wed 21/1010:40
BOS
-
SYD
2 stops30h 40m
Air Canada
Wed 28/1010:20
SYD
-
BOS
2 stops24h 57m
Air Canada
Deal found 11/4$1,776
Sun 17/518:50
BOS
-
SYD
2 stops46h 30m
Air Canada
Wed 27/509:20
SYD
-
BOS
2 stops38h 25m
Air Canada
Deal found 11/4$1,790
Wed 21/1010:30
BOS
-
SYD
1 stop30h 35m
Qantas Airways
Fri 30/1007:05
SYD
-
BOS
2 stops27h 37m
Qantas Airways
Deal found 13/4$1,801
Tue 9/610:35
BOS
-
SYD
3 stops30h 45m
Air Canada
Tue 16/609:20
SYD
-
BOS
2 stops26h 07m
Air Canada
Deal found 11/4$1,803
Wed 7/1010:40
BOS
-
SYD
2 stops30h 40m
Air Canada
Sat 17/1010:20
SYD
-
BOS
2 stops26h 07m
Air Canada
Deal found 11/4$1,804
Sat 17/1010:30
BOS
-
SYD
1 stop30h 35m
Qantas Airways
Sat 31/1017:50
SYD
-
BOS
2 stops39h 26m
Qantas Airways
Deal found 14/4$1,807
Sat 12/910:40
BOS
-
SYD
2 stops30h 40m
Air Canada
Sat 17/1010:20
SYD
-
BOS
2 stops26h 07m
Air Canada
Deal found 13/4$1,832
Fri 29/510:45
BOS
-
MEL
3 stops34h 20m
Multiple Airlines
Fri 5/620:50
MEL
-
BOS
3 stops39h 49m
Multiple Airlines
Deal found 13/4$1,834
Sat 3/1010:40
BOS
-
SYD
2 stops30h 40m
Air Canada
Wed 14/1010:20
SYD
-
BOS
2 stops26h 07m
Air Canada
Deal found 12/4$1,838
Sat 8/806:00
BOS
-
SYD
2 stops35h 20m
Air Canada
Sun 30/809:20
SYD
-
BOS
2 stops38h 30m
Air Canada
Deal found 11/4$1,839
Fri 18/910:40
BOS
-
SYD
2 stops30h 40m
Air Canada
Sun 11/1010:20
SYD
-
BOS
3 stops38h 30m
Air Canada
Deal found 13/4$1,845

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 15 April 2026.

Round-trip from

$1,614

One-way from

$909

Popular in

December

Cheapest in

September

Average price

$2,130
28/5-4/6
  • 28/5-4/6
  • 4 total stops
  • 65h 02m total
  • Boston to Australia
Search Deals
13/8
  • 13/8
  • 3 total stops
  • 39h 55m total
  • Boston to Australia
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($354 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($91 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 15 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

BostonMelbourne

BOS - AVV

BOSAVV

Boston Logan Intl

Fri 19/6

10:50-14:10

3 stops37h 20m

Melbourne Avalon

Sat 25/7

20:55-22:38

3 stops39h 43m

$1,883

BostonMelbourne

BOS - AVV

BOSAVV

Boston Logan Intl

Fri 19/6

10:50-14:10

3 stops37h 20m

Melbourne Avalon

Mon 20/7

20:55-11:52

3 stops52h 57m

$1,883

BostonMelbourne

BOS - AVV

BOSAVV

Boston Logan Intl

Sun 28/6

10:50-14:10

3 stops37h 20m

Melbourne Avalon

Thu 16/7

20:55-09:53

3 stops50h 58m

$2,041

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Sat 4/7

10:30-05:00

1 stop28h 30m

Brisbane

Thu 10/12

06:30-16:52

2 stops25h 22m

$2,116

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Tue 5/5

16:21-23:25

2 stops41h 04m

Brisbane

Tue 12/5

20:45-00:04

2 stops41h 19m

$2,129

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Fri 3/7

10:30-05:00

1 stop28h 30m

Brisbane

Thu 30/7

08:45-20:51

2 stops26h 06m

$2,134

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Fri 3/7

17:52-10:05

2 stops26h 13m

Brisbane

Fri 31/7

07:40-20:51

2 stops27h 11m

$2,166

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Mon 4/5

08:05-07:00

2 stops32h 55m

Sydney Kingsford Smith

Mon 11/5

09:30-16:55

1 stop21h 25m

$2,182

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Mon 1/6

05:45-07:00

2 stops35h 15m

Sydney Kingsford Smith

Mon 15/6

10:20-21:21

1 stop25h 01m

$2,182
Fastest return journey

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Wed 29/7

13:37-06:55

2 stops27h 18m

Sydney Kingsford Smith

Mon 24/8

10:20-17:05

1 stop20h 45m

$2,182

Flights are sorted by cheapest return flights first.

Deals found on 14/4

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 $351). Flying from Boston to Australia in July is currently the most expensive (average of $1,558). 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 15 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
1,019 reviews
Check prices

Comfort

7.5

Boarding

7.7

Food

7.0

Overall

7.5

Entertainment

7.2

Crew

8.1

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
1,019 reviews
Qantas Airways
7.5
Good
1,019 reviews
Check prices

Comfort

7.5

Boarding

7.7

Food

7.0

Overall

7.5

Entertainment

7.2

Crew

8.1

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
9,592 reviews
Qantas Airways
7.5
Good
1,019 reviews
Check prices

Comfort

7.5

Boarding

7.7

Food

7.0

Overall

7.5

Entertainment

7.2

Crew

8.1

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
10,930 reviews
Qantas Airways
7.5
Good
1,019 reviews
Check prices

Comfort

7.5

Boarding

7.7

Food

7.0

Overall

7.5

Entertainment

7.2

Crew

8.1

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 30h 30m. Fly via Qantas Airways, United Airlines, or Emirates to get the fastest option. The distance from Boston to Australia is about 18689 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 - Melbourne. You may also consider Boston Logan Intl - Sydney Kingsford Smith 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, September is the cheapest month in which you can book a flight from Boston to Australia (average of $351). Flying from Boston to Australia in July is currently the most expensive (average of $1,558). 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 15 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$1,260Average$1,536FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Qantas AirwaysCheapest$1,368Average$2,640FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
United AirlinesCheapest$1,478Average$2,224FlexibilityNo 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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