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Cheap flights from Boston to Australia from $641

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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SYD
6 Jul — 13 Jul1
1 adult

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 1 July 2025.

Round-trip from

$1,555

One-way from

$641

Popular in

December

Cheapest in

April

Average price

$2,231
Qantas Airways
  • Qantas Airways
  • 8/11-22/11
  • 3 total stops
  • 62h 12m total
  • Boston to Australia
Search Deals
2/9
  • 2/9
  • 2 total stops
  • 40h 55m total
  • Boston to Australia
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($467 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($92 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from Boston to Australia

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 1 July 2025.

Sat 8/1116:18BOS - BNE
1 stop23h 12mQantas Airways
Sat 22/1118:55BNE - BOS
2 stops39h 00mQantas Airways
Deal found 30/6$1,555
Tue 11/1108:00BOS - MEL
2 stops34h 25mQantas Airways
Wed 26/1116:05MEL - BOS
1 stop21h 03mQantas Airways
Deal found 29/6$1,621
Sat 8/1110:25BOS - BNE
3 stops30h 05mUnited Airlines
Sat 22/1111:40BNE - BOS
1 stop24h 58mUnited Airlines
Deal found 30/6$1,635
Mon 25/812:55BOS - PER
2 stops40h 15mMultiple Airlines
Mon 8/921:55PER - BOS
2 stops48h 15mMultiple Airlines
Deal found 30/6$1,729
Tue 9/915:15BOS - BNE
2 stops25h 50mAir Canada
Wed 24/910:00BNE - BOS
2 stops25h 25mAir Canada
Deal found 1/7$1,920
Sat 8/1112:15BOS - BNE
1 stop27h 15mMultiple Airlines
Fri 21/1100:10BNE - BOS
1 stop36h 50mMultiple Airlines
Deal found 30/6$1,958
Tue 5/818:11BOS - AVV
2 stops38h 39mMultiple Airlines
Sat 20/920:55AVV - BOS
2 stops34h 12mMultiple Airlines
Deal found 28/6$1,973
Tue 7/1018:19BOS - BNE
2 stops26h 06mFiji Airways
Tue 21/1011:35BNE - BOS
2 stops25h 34mFiji Airways
Deal found 29/6$1,984
Tue 2/908:01BOS - HBA
2 stops44h 49mMultiple Airlines
Tue 16/909:10HBA - BOS
2 stops35h 37mMultiple Airlines
Deal found 29/6$2,028
Wed 13/817:31BOS - MEL
2 stops27h 19mAir New Zealand
Wed 20/812:05MEL - BOS
2 stops25h 23mAir New Zealand
Deal found 29/6$2,047
Wed 29/1012:00BOS - SYD
1 stop30h 00mQantas Airways
Sun 9/1111:15SYD - BOS
1 stop27h 43mQantas Airways
Deal found 30/6$2,051
Thu 13/1121:15BOS - MEL
1 stop34h 30mQatar Airways
Mon 17/1123:30MEL - BOS
1 stop30h 25mQatar Airways
Deal found 1/7$2,051

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 1 July 2025.
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

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Sat 8/11

16:18-06:30

1 stop23h 12m

Brisbane

Sat 22/11

18:55-18:55

2 stops39h 00m

$1,555

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Tue 11/11

08:00-10:25

2 stops34h 25m

Melbourne

Wed 26/11

16:05-21:08

1 stop21h 03m

$1,621

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Tue 16/12

09:30-07:30

2 stops31h 00m

Brisbane

Mon 29/12

11:40-00:45

2 stops28h 05m

$1,635

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Mon 25/8

12:55-17:10

2 stops40h 15m

Perth

Mon 8/9

21:55-10:10

2 stops48h 15m

$1,729

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Tue 9/9

10:20-07:05

2 stops30h 45m

Brisbane

Wed 24/9

10:00-09:30

2 stops37h 30m

$1,918

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Sat 8/11

12:15-06:30

1 stop27h 15m

Brisbane

Fri 21/11

00:10-22:00

1 stop36h 50m

$1,958

BostonMelbourne

BOS - AVV

BOSAVV

Boston Logan Intl

Tue 5/8

18:11-22:50

2 stops38h 39m

Melbourne Avalon

Sat 20/9

20:55-17:07

2 stops34h 12m

$1,973

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Tue 7/10

18:19-10:25

2 stops26h 06m

Brisbane

Tue 21/10

11:35-23:09

2 stops25h 34m

$1,984

BostonHobart

BOS - HBA

BOSHBA

Boston Logan Intl

Tue 2/9

08:01-18:50

2 stops44h 49m

Hobart

Tue 16/9

09:10-06:47

2 stops35h 37m

$2,028

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Wed 13/8

17:31-10:50

2 stops27h 19m

Melbourne

Wed 20/8

12:05-23:28

2 stops25h 23m

$2,047

Flights are sorted by cheapest return flights first.

Deals found on 28/6

Showing 1-10 of 57 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, May is the cheapest month in which you can book a flight from Boston to Australia (average of $129). Flying from Boston to Australia in October is currently the most expensive (average of $171). 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.

What is the cheapest time of day to fly from BOS to AU?

Find hourly flight availability from Boston to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 July 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Boston to Australia as you normally would.

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 1 July 2025.
See what other customers who have flown with ANA, Emirates, andSingapore 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.
ANA
8.4
Very Good
892 reviews
Check prices

Overall

8.4

Comfort

8.2

Boarding

8.5

Entertainment

7.9

Crew

8.7

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
ANA
8.4
Very Good
892 reviews
ANA
8.4
Very Good
892 reviews
Check prices

Overall

8.4

Comfort

8.2

Boarding

8.5

Entertainment

7.9

Crew

8.7

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
Emirates
8.1
Very Good
3,285 reviews
ANA
8.4
Very Good
892 reviews
Check prices

Overall

8.4

Comfort

8.2

Boarding

8.5

Entertainment

7.9

Crew

8.7

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
Singapore Airlines
8.1
Very Good
1,319 reviews
ANA
8.4
Very Good
892 reviews
Check prices

Overall

8.4

Comfort

8.2

Boarding

8.5

Entertainment

7.9

Crew

8.7

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
Fiji Airways
8.0
Very Good
202 reviews
ANA
8.4
Very Good
892 reviews
Check prices

Overall

8.4

Comfort

8.2

Boarding

8.5

Entertainment

7.9

Crew

8.7

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
Delta
8.0
Very Good
7,973 reviews
ANA
8.4
Very Good
892 reviews
Check prices

Overall

8.4

Comfort

8.2

Boarding

8.5

Entertainment

7.9

Crew

8.7

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.

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.

  • What are the cheapest airlines to fly from Boston to Australia one-way?

    The cheapest airline one-way is Alaska Airlines, with whom users have recently found tickets for as low as $865. However, be on the lookout for offers from Qantas Airways and Air Canada, 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 - Brisbane.

  • 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, May is the cheapest month in which you can book a flight from Boston to Australia (average of $129). Flying from Boston to Australia in October is currently the most expensive (average of $171). 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 1 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$1,164Average$1,895FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest$1,244Average$2,492FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Qantas AirwaysCheapest$2,091Average$2,431FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights

Fly with Cheapflights

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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?

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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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