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Cheap flights from Boston to Perth from $2,139

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — PER
9 Jan — 16 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Boston to Perth

Enter your travel dates to find the best prices.

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 10 December 2025.

Mon 29/1208:26BOS - PER
2 stops46h 04mQantas Airways
Sun 11/111:10PER - BOS
2 stops56h 15mQantas Airways
Deal found 9/12$3,058
Sat 27/1214:32BOS - PER
2 stops53h 48mQantas Airways
Sun 11/112:05PER - BOS
2 stops55h 20mQantas Airways
Deal found 9/12$3,076
Tue 30/1208:00BOS - PER
2 stops40h 10mQantas Airways
Sun 11/111:10PER - BOS
2 stops56h 15mQantas Airways
Deal found 9/12$3,138
Fri 26/1214:32BOS - PER
2 stops32h 33mQantas Airways
Sun 11/112:05PER - BOS
2 stops55h 20mQantas Airways
Deal found 9/12$3,218
Thu 11/1208:33BOS - PER
2 stops36h 37mQantas Airways
Sat 13/1216:00PER - BOS
2 stops35h 51mQantas Airways
Deal found 7/12$3,234
Sun 14/1208:33BOS - PER
2 stops34h 12mQantas Airways
Sat 17/105:30PER - BOS
2 stops31h 00mQantas Airways
Deal found 8/12$3,278
Thu 11/1214:44BOS - PER
2 stops32h 11mQatar Airways
Sat 13/1222:45PER - BOS
1 stop28h 35mQatar Airways
Deal found 7/12$3,383
Mon 29/1208:26BOS - PER
2 stops46h 04mQantas Airways
Fri 9/117:20PER - BOS
2 stops40h 38mQantas Airways
Deal found 9/12$3,398
Sat 27/1211:26BOS - PER
2 stops56h 54mQantas Airways
Fri 9/117:20PER - BOS
2 stops37h 36mQantas Airways
Deal found 9/12$3,415
Tue 30/1217:59BOS - PER
2 stops30h 11mQantas Airways
Fri 9/117:20PER - BOS
2 stops40h 38mQantas Airways
Deal found 9/12$3,477
Sun 14/1206:15BOS - PER
3 stops44h 15mMultiple Airlines
Sat 17/122:40PER - BOS
2 stops31h 40mMultiple Airlines
Deal found 8/12$3,541

Find 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 10 December 2025.

Round-trip from

$1,979

Popular in

December

Cheapest in

November

Average price

$4,585
Qatar Airways
  • Qatar Airways
  • 9/2-18/2
  • 3 total stops
  • 71h 35m total
  • Boston to Perth
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($646 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($259 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 10 December 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

Sun 1/2

17:20-14:30

2 stops32h 10m

Perth

Sun 1/3

22:45-23:40

2 stops37h 55m

$2,139

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Sun 1/2

16:19-07:45

2 stops50h 26m

Perth

Sat 28/2

05:30-23:26

2 stops30h 56m

$2,150

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Fri 30/1

16:19-07:45

2 stops50h 26m

Perth

Tue 10/2

22:45-17:56

2 stops32h 11m

$2,180

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Mon 9/2

20:40-11:55

1 stop26h 15m

Perth

Wed 18/2

22:45-14:20

1 stop28h 35m

$2,226

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Sun 15/3

21:40-18:45

1 stop33h 05m

Perth

Sun 22/3

15:55-14:55

1 stop35h 00m

$2,285

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Sun 1/2

20:40-18:45

1 stop33h 05m

Perth

Sun 1/3

15:55-13:55

1 stop35h 00m

$2,287

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Sun 8/2

22:10-17:20

1 stop30h 10m

Perth

Thu 12/2

22:20-13:55

1 stop28h 35m

$2,362

Flights are sorted by cheapest return flights first.

Deals found on 9/12

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, October is the cheapest month in which you can book a flight from Boston to Perth (average of $1,966). Flying from Boston to Perth in June is currently the most expensive (average of $3,273). 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 much does it cost for a return flight from Boston to Perth?

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 Qantas Airways and Qatar Airways fly from Boston to Perth in about 26h 15m. The time it takes to get you to your destination can typically vary by up to 5h 55m. 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, October is the cheapest month in which you can book a flight from Boston to Perth (average of $1,966). Flying from Boston to Perth in June is currently the most expensive (average of $3,273). 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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