Cheap flights from Boston to Australia from $790

BOS — SYD
12 Dec — 19 Dec1
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

Mon 9/1116:20 -
2 stops25h 10m
Sun 22/1110:40 -
2 stops34h 40m
Deal found 8/11$1,813
Mon 9/1108:25 -
2 stops32h 05m
Sun 22/1111:20 -
1 stop20h 29m
Deal found 8/11$1,817
Thu 12/1110:30 -
2 stops30h 00m
Wed 25/1111:20 -
1 stop20h 29m
Deal found 10/11$1,837
Wed 11/1115:01 -
2 stops25h 29m
Wed 18/1111:20 -
1 stop20h 29m
Deal found 11/11$1,842
Wed 11/1114:59 -
2 stops26h 31m
Wed 18/1110:40 -
2 stops28h 17m
Deal found 11/11$1,845
Mon 30/1114:20 -
1 stop24h 30m
Mon 7/1213:10 -
1 stop25h 26m
Deal found 11/11$1,855
Tue 10/1109:00 -
1 stop29h 50m
Tue 17/1113:10 -
1 stop23h 48m
Deal found 9/11$1,856
Mon 16/1113:32 -
2 stops26h 58m
Thu 14/106:05 -
3 stops32h 54m
Deal found 12/11$1,874
Tue 1/1213:30 -
1 stop26h 30m
Wed 9/1210:10 -
1 stop27h 16m
Deal found 10/11$1,874
Sun 29/1106:10 -
1 stop33h 50m
Tue 8/1210:10 -
1 stop27h 16m
Deal found 7/11$1,875
Sat 28/1118:45 -
2 stops45h 15m
Wed 9/1210:10 -
1 stop27h 16m
Deal found 10/11$1,880
Tue 1/1210:40 -
2 stops29h 20m
Tue 8/1210:10 -
2 stops26h 20m
Deal found 11/11$1,881

Find flight deals from Boston to Australia

Round-trip from

$1,703

One-way from

$790

Popular in

December

Cheapest in

May

Average price

$2,126
Qatar Airways
  • Qatar Airways
  • 21/2-9/3
  • 2 total stops
  • 61h 15m total
  • Boston to Australia
14/3-31/12
  • 14/3-31/12
  • 2 total stops
  • 44h 44m total
  • Boston to Australia
Highest demand for flights based on searches. 11% potential increase in price ($397 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease ($85 potential savings vs. average return price).
Average for round-trip flights in November 2026

Cheapflights Fare Finder

 
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 Boston Logan Intl - BNE Brisbane

BOSBNE

Boston Logan Intl

Thu 11/2

08:00-07:30

2 stops32h 30m

Brisbane

Wed 31/12

00:00-09:00

Nonstop0h 00m

$952

BostonPerth

BOS Boston Logan Intl - PER Perth

BOSPER

Boston Logan Intl

Wed 24/2

19:46-07:20

2 stops46h 34m

Perth

Wed 31/12

00:00-11:00

Nonstop0h 00m

$968

BostonMelbourne

BOS Boston Logan Intl - MEL Melbourne

BOSMEL

Boston Logan Intl

Sun 22/11

08:20-10:30

1 stop34h 10m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$984

BostonMelbourne

BOS Boston Logan Intl - MEL Melbourne

BOSMEL

Boston Logan Intl

Wed 25/11

09:00-10:30

1 stop33h 30m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$984

BostonMelbourne

BOS Boston Logan Intl - MEL Melbourne

BOSMEL

Boston Logan Intl

Sat 28/11

20:30-08:00

1 stop43h 30m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,013

BostonMelbourne

BOS Boston Logan Intl - MEL Melbourne

BOSMEL

Boston Logan Intl

Thu 26/11

07:00-05:00

1 stop30h 00m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,048

BostonPerth

BOS Boston Logan Intl - PER Perth

BOSPER

Boston Logan Intl

Sat 13/2

15:40-03:40

2 stops47h 00m

Perth

Wed 31/12

00:00-11:00

Nonstop0h 00m

$1,054

BostonMelbourne

BOS Boston Logan Intl - MEL Melbourne

BOSMEL

Boston Logan Intl

Thu 26/11

05:30-10:30

3 stops37h 00m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,071

BostonMelbourne

BOS Boston Logan Intl - MEL Melbourne

BOSMEL

Boston Logan Intl

Fri 27/11

08:20-10:30

1 stop34h 10m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,071

BostonSydney

BOS Boston Logan Intl - SYD Sydney Kingsford Smith

BOSSYD

Boston Logan Intl

Wed 25/11

05:30-09:20

3 stops35h 50m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,072

Flights are sorted by cheapest return flights first.

Deals found on 11/11

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

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, February is the cheapest month in which you can book a flight from Boston to Australia (average of $1,785). Flying from Boston to Australia in December is currently the most expensive (average of $2,847). 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.

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

The best time to book flights from Boston to Australia is 1 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.

Reviews of airlines servicing Australia

See what other customers who have flown with Qantas Airways and United Airlines 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.

Entertainment

7.2

Food

7.0

Boarding

7.7

Crew

8.1

Overall

7.5

Comfort

7.5

Reviews

1 / 20
8.0
Excellent

Jodie,Oct 2026

SYD - GFF

Pretty good but it was delayed by almost an hour

Entertainment

7.2

Food

7.0

Boarding

7.7

Crew

8.1

Overall

7.5

Comfort

7.5

Reviews

1 / 20
8.0
Excellent

Jodie,Oct 2026

SYD - GFF

Pretty good but it was delayed by almost an hour

Entertainment

7.2

Food

7.0

Boarding

7.7

Crew

8.1

Overall

7.5

Comfort

7.5

Reviews

1 / 20
8.0
Excellent

Jodie,Oct 2026

SYD - GFF

Pretty good but it was delayed by almost an hour

Related info for your journey

  • 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 United Airlines, Delta, 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 $621. However, be on the lookout for offers from Qantas Airways 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?

  • 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 $1,785). Flying from Boston to Australia in December is currently the most expensive (average of $2,847). 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

Top 2 airlines flying from Boston to Australia

AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,770Average$2,558FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
United AirlinesCheapest$1,800Average$1,981FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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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?

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