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Cheap flights from Boston to Perth from $1,091

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 17/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — PER
3 Sep — 10 Sep1
1 adult

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 29 August 2025.

Round-trip from

$1,734

One-way from

$1,091

Popular in

December

Cheapest in

April

Average price

$2,497
26/9-3/10
  • 26/9-3/10
  • 4 total stops
  • 102h 25m total
  • Boston to Perth
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17/2
  • 17/2
  • 3 total stops
  • 44h 00m total
  • Boston to Perth
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($701 potential increase over avg. return price).
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Cheapest flight prices on average. 6% potential price decrease ($259 potential savings vs. average return price).
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Average for round-trip flights in August 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 29 August 2025.

Fri 26/916:30BOS - PER
2 stops48h 00mMultiple Airlines
Fri 3/1020:30PER - BOS
2 stops54h 25mMultiple Airlines
Deal found 28/8$1,734
Wed 12/1100:30BOS - PER
1 stop41h 25mCathay Pacific
Sun 16/1100:15PER - BOS
1 stop34h 45mCathay Pacific
Deal found 26/8$2,143
Sat 20/922:00BOS - PER
1 stop32h 40mQatar Airways
Sat 27/922:45PER - BOS
1 stop28h 20mQatar Airways
Deal found 27/8$2,292
Tue 23/901:40BOS - PER
2 stops36h 00mMultiple Airlines
Wed 1/1018:25PER - BOS
3 stops40h 14mMultiple Airlines
Deal found 27/8$2,296
Sun 12/1022:00BOS - PER
1 stop32h 40mQatar Airways
Sun 19/1022:45PER - BOS
1 stop28h 20mQatar Airways
Deal found 28/8$2,334
Wed 24/923:05BOS - PER
1 stop37h 35mEmirates
Wed 1/1006:00PER - BOS
1 stop44h 10mEmirates
Deal found 27/8$2,359

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 29 August 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

Fri 26/9

16:30-04:30

2 stops48h 00m

Perth

Fri 3/10

20:30-14:55

2 stops54h 25m

$1,734

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Tue 3/2

15:40-04:00

2 stops47h 20m

Perth

Tue 24/2

04:40-14:10

2 stops46h 30m

$1,754

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

$2,143

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Tue 17/2

15:40-00:40

3 stops44h 00m

$1,091

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Mon 16/2

15:40-08:50

3 stops52h 10m

$1,097

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Sat 21/2

15:40-15:55

3 stops59h 15m

$1,099

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Fri 20/2

20:40-19:50

3 stops58h 10m

$1,104

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Thu 19/2

15:40-19:50

3 stops39h 10m

$1,122

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Wed 18/2

17:55-08:50

3 stops49h 55m

$1,130

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Sun 15/2

15:40-00:40

3 stops44h 00m

$1,142

Flights are sorted by cheapest return flights first.

Deals found on 26/8

Showing 1-10 of 12 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 29 August 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.

  • 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
Mandurah
Scarborough
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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