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Cheap flights from Boston to Australia from $603

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 28/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SYD
14 Feb — 21 Feb1
1 adult
1 adult, Economy, 0 bags

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 15 January 2026.

Round-trip from

$1,184

One-way from

$603

Popular in

December

Cheapest in

March

Average price

$2,215
Air Canada
  • Air Canada
  • 8/2-15/2
  • 4 total stops
  • 50h 07m total
  • Boston to Australia
Search Deals
Air Canada
  • Air Canada
  • 28/2
  • 2 total stops
  • 28h 45m total
  • Boston to Australia
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($448 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($104 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find 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 January 2026.

Tue 27/119:00
BOS
-
MEL
2 stops28h 35m
Qantas Airways
Wed 11/212:00
MEL
-
BOS
1 stop21h 56m
Qantas Airways
Deal found 13/1$1,362
Fri 27/206:15
BOS
-
BNE
2 stops35h 30m
Air Canada
Fri 6/310:45
BNE
-
BOS
2 stops25h 42m
Air Canada
Deal found 13/1$1,364
Sun 1/217:20
BOS
-
SYD
1 stop23h 40m
Qantas Airways
Sun 15/219:15
SYD
-
BOS
2 stops39h 25m
Qantas Airways
Deal found 12/1$1,379
Thu 5/316:04
BOS
-
BNE
2 stops34h 06m
Qantas Airways
Tue 17/319:40
BNE
-
BOS
1 stop24h 51m
Qantas Airways
Deal found 13/1$1,400
Tue 27/108:00
BOS
-
SYD
2 stops55h 35m
Qantas Airways
Tue 10/211:20
SYD
-
BOS
1 stop21h 01m
Qantas Airways
Deal found 12/1$1,406
Mon 26/119:00
BOS
-
SYD
2 stops46h 10m
Qantas Airways
Sat 7/211:20
SYD
-
BOS
1 stop25h 38m
Qantas Airways
Deal found 13/1$1,407
Tue 27/119:00
BOS
-
MEL
2 stops28h 35m
Qantas Airways
Wed 4/312:00
MEL
-
BOS
1 stop22h 40m
Qantas Airways
Deal found 14/1$1,409
Sat 28/216:35
BOS
-
BNE
2 stops25h 10m
Air Canada
Sat 7/310:45
BNE
-
BOS
2 stops26h 52m
Air Canada
Deal found 14/1$1,416
Sun 1/217:20
BOS
-
SYD
1 stop23h 40m
Qantas Airways
Tue 10/219:15
SYD
-
BOS
2 stops38h 41m
Qantas Airways
Deal found 12/1$1,428
Sat 7/219:00
BOS
-
SYD
2 stops46h 10m
Qantas Airways
Sat 14/211:20
SYD
-
BOS
1 stop23h 20m
Qantas Airways
Deal found 12/1$1,430
Mon 16/310:15
BOS
-
BNE
2 stops31h 30m
Air Canada
Mon 23/309:45
BNE
-
BOS
2 stops37h 47m
Air Canada
Deal found 14/1$1,433
Thu 26/216:50
BOS
-
SYD
1 stop24h 10m
Qantas Airways
Tue 3/319:15
SYD
-
BOS
2 stops39h 25m
Qantas Airways
Deal found 12/1$1,436

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 January 2026.
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

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Fri 13/2

16:50-09:30

1 stop24h 40m

Melbourne

Fri 20/2

12:00-22:11

1 stop26h 11m

$1,548

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Sun 15/3

09:30-09:30

1 stop33h 00m

Melbourne

Mon 23/3

12:00-22:12

2 stops25h 12m

$1,555

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Fri 27/2

10:05-05:00

2 stops26h 55m

Melbourne

Sat 7/3

16:05-23:06

2 stops23h 01m

$1,555

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Sat 21/2

13:50-09:30

2 stops27h 40m

Melbourne

Sat 7/3

11:30-20:24

2 stops24h 54m

$1,567

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Wed 4/3

05:35-09:30

2 stops35h 55m

Melbourne

Fri 13/3

12:00-00:49

1 stop27h 49m

$1,582

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Mon 2/3

18:07-09:30

1 stop23h 23m

Melbourne

Mon 16/3

12:00-23:57

2 stops26h 57m

$1,582

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Fri 6/3

05:45-09:30

2 stops35h 45m

Melbourne

Mon 16/3

12:00-23:57

2 stops26h 57m

$1,582

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Fri 6/3

05:45-09:30

2 stops35h 45m

Melbourne

Tue 17/3

12:00-23:57

2 stops26h 57m

$1,582

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Tue 14/4

18:01-08:15

1 stop24h 14m

Melbourne

Fri 24/4

10:55-01:05

1 stop28h 10m

$1,582

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Tue 3/2

08:25-09:30

1 stop33h 05m

Melbourne

Tue 17/2

13:00-19:56

1 stop22h 56m

$1,582

Flights are sorted by cheapest return flights first.

Deals found on 14/1

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, September is the cheapest month in which you can book a flight from Boston to Australia (average of $375). Flying from Boston to Australia in December is currently the most expensive (average of $1,332). 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 January 2026.
See what other customers who have flown with Qantas Airways, United Airlines, andAmerican 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.
Qantas Airways
7.5
Good
971 reviews
Check prices

Boarding

7.7

Overall

7.5

Food

7.0

Entertainment

7.2

Comfort

7.5

Crew

8.2

Reviews

1 / 20
6.0
Good

Marco,Dec 2025

BOS - LAX

There was no WiFi or tv traveling from LAX to Sydney. Way too long of a flight to have nothing.
Qantas Airways
7.5
Good
971 reviews
Qantas Airways
7.5
Good
971 reviews
Check prices

Boarding

7.7

Overall

7.5

Food

7.0

Entertainment

7.2

Comfort

7.5

Crew

8.2

Reviews

1 / 20
6.0
Good

Marco,Dec 2025

BOS - LAX

There was no WiFi or tv traveling from LAX to Sydney. Way too long of a flight to have nothing.
United Airlines
7.4
Good
9,162 reviews
Qantas Airways
7.5
Good
971 reviews
Check prices

Boarding

7.7

Overall

7.5

Food

7.0

Entertainment

7.2

Comfort

7.5

Crew

8.2

Reviews

1 / 20
6.0
Good

Marco,Dec 2025

BOS - LAX

There was no WiFi or tv traveling from LAX to Sydney. Way too long of a flight to have nothing.
American Airlines
7.2
Good
11,125 reviews
Qantas Airways
7.5
Good
971 reviews
Check prices

Boarding

7.7

Overall

7.5

Food

7.0

Entertainment

7.2

Comfort

7.5

Crew

8.2

Reviews

1 / 20
6.0
Good

Marco,Dec 2025

BOS - LAX

There was no WiFi or tv traveling from LAX to Sydney. Way too long of a flight to have nothing.
Air Canada
7.1
Good
10,622 reviews
Qantas Airways
7.5
Good
971 reviews
Check prices

Boarding

7.7

Overall

7.5

Food

7.0

Entertainment

7.2

Comfort

7.5

Crew

8.2

Reviews

1 / 20
6.0
Good

Marco,Dec 2025

BOS - LAX

There was no WiFi or tv traveling from LAX to Sydney. Way too long of a flight to have nothing.

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 24h 40m. Fly via American Airlines, Air Canada, or United Airlines 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 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 $619. 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 - 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, September is the cheapest month in which you can book a flight from Boston to Australia (average of $375). Flying from Boston to Australia in December is currently the most expensive (average of $1,332). 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 4 airlines flying from Boston to Australia

Discover the top 4 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 January 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,217Average$2,232FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest$1,395Average$1,668FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Qantas AirwaysCheapest$1,463Average$2,552FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
American AirlinesCheapest$1,482Average$2,134FlexibilityNo cancel feeOn-time71%
Search American 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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