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Cheap flights from Boston to Perth from $953

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 15/3. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — PER
17 Oct — 24 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Boston to Perth

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Perth (PER). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 September 2025.

Round-trip from

$1,849

One-way from

$1,064

Popular in

December

Cheapest in

November

Average price

$2,525
29/10-5/11
  • 29/10-5/11
  • 4 total stops
  • 60h 40m total
  • Boston to Perth
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5/12
  • 5/12
  • 3 total stops
  • 56h 00m total
  • Boston to Perth
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($570 potential increase over avg. return price).
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Cheapest flight prices on average. 6% potential price decrease ($256 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Find flight deals from Boston to Perth

Cheapest flights from Boston to Perth
Explore the most affordable flight options available from Boston to Perth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.

Wed 29/1001:30BOS - PER
2 stops30h 20mMultiple Airlines
Wed 5/1104:40PER - BOS
2 stops30h 20mMultiple Airlines
Deal found 15/9$1,849
Tue 16/921:35BOS - PER
2 stops34h 05mMultiple Airlines
Tue 23/923:35PER - BOS
2 stops56h 05mMultiple Airlines
Deal found 15/9$1,954
Wed 1/1001:40BOS - PER
2 stops55h 00mMultiple Airlines
Mon 6/1021:55PER - BOS
2 stops37h 05mMultiple Airlines
Deal found 16/9$2,104
Thu 30/1021:45BOS - PER
1 stop33h 00mQatar Airways
Thu 6/1122:45PER - BOS
1 stop28h 10mQatar Airways
Deal found 15/9$2,152
Tue 16/922:00BOS - PER
1 stop25h 55mQatar Airways
Tue 23/922:45PER - BOS
1 stop28h 20mQatar Airways
Deal found 15/9$2,234
Tue 23/922:00BOS - PER
1 stop32h 40mQatar Airways
Thu 2/1022:45PER - BOS
1 stop28h 20mQatar Airways
Deal found 14/9$2,237
Wed 29/1001:30BOS - PER
1 stop41h 25mCathay Pacific
Thu 6/1108:30PER - BOS
1 stop26h 30mCathay Pacific
Deal found 15/9$2,295
Wed 12/1100:30BOS - PER
1 stop41h 25mCathay Pacific
Mon 17/1108:30PER - BOS
1 stop26h 30mCathay Pacific
Deal found 14/9$2,334

Cheapflights Fare Finder

 
Customise your flight search to find flights from Boston to Perth 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 17 September 2025.
Use the filters below to find and compare flights from Boston to Perth that are best for you.

Fly from

Boston

Fly to

Perth

Route

Depart

Return

Price

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Wed 1/10

01:40-20:40

2 stops55h 00m

Perth

Mon 6/10

21:55-23:00

2 stops37h 05m

$2,104

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Mon 9/2

17:55-23:55

2 stops41h 00m

Perth

Mon 16/2

17:05-23:22

2 stops43h 17m

$2,131

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Sun 8/2

00:30-06:55

1 stop41h 25m

Perth

Sun 15/2

00:25-22:00

1 stop34h 35m

$2,297

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Mon 9/2

20:40-15:15

2 stops29h 35m

Perth

Mon 16/2

22:45-14:20

1 stop28h 35m

$2,324

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Wed 12/11

00:30-06:55

1 stop41h 25m

Perth

Mon 17/11

08:30-22:00

1 stop26h 30m

$2,334

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Thu 13/11

20:45-12:00

1 stop26h 15m

Perth

Mon 17/11

15:05-13:55

1 stop35h 50m

$2,369

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Thu 13/11

22:10-17:20

1 stop30h 10m

Perth

Mon 17/11

10:30-13:55

2 stops64h 25m

$2,444

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Tue 3/2

22:10-23:55

2 stops36h 45m

Perth

Sat 7/2

10:30-13:55

2 stops40h 25m

$2,463

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Sun 15/3

16:40-00:40

3 stops44h 00m

$953

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Thu 12/3

16:40-19:50

3 stops39h 10m

$954

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 18 results
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Best time to book a flight from Boston to Perth

Have a flexible travel schedule? Discover the best time to fly to Perth 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 Perth

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

Currently, May is the cheapest month in which you can book a flight from Boston to Perth (average of $286). Flying from Boston to Perth in December is currently the most expensive (average of $409). 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 PER?

Find hourly flight availability from Boston to Perth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 September 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 3% on flights from Boston to Perth by exploring options for tickets at midday.

Related info for your journey

Find useful and relevant information for your journey from Boston to Perth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Boston to Perth?

    Airlines like Cathay Pacific and Qatar Airways fly from Boston to Perth in about 29h 35m. The time it takes to get you to your destination can typically vary by up to 11h 50m. There are 18689 km between Boston and Perth. Both multi-stop and direct flights can be found to your destination and back.

  • Can I find deals for flights from Boston to Perth that include hotel bookings?

    Yes. In addition to deals on Boston to Perth flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Boston to Perth?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Perth.

  • Can I find deals for business class flights from Boston to Perth?

    Yes. Cheapflights offers flight deals from Boston to Perth 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 Perth?

    Currently, May is the cheapest month in which you can book a flight from Boston to Perth (average of $286). Flying from Boston to Perth in December is currently the most expensive (average of $409). 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

Travelling to a place near Perth?

Book flights to Perth if you plan to visit one of these locations
Scarborough
Mandurah
Fremantle
Rottnest Island

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How does Cheapflights help users find flights from Boston to Perth?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Boston to Perth. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Boston to Perth?

Cheapflights simply makes it quick and affordable to book flights from Boston to Perth 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 Perth with no change fees?

Yes, we can. To see specific flights from Boston to Perth with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Boston to Perth become cheaper?

Not ready to book yet? You can track prices for flights from Boston to Perth on Cheapflights with our Price Alert feature and get notified when better prices are available.

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