Find flights
When to book
FAQs

Cheap flights from Boston to Perth from $1,855

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — PER
6 Jun — 13 Jun1
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 7 May 2026.

Sun 1/1121:05
BOS
-
PER
2 stops37h 40m
Multiple Airlines
Sun 22/1117:00
PER
-
BOS
2 stops58h 20m
Multiple Airlines
Deal found 3/5$1,855
Tue 6/1022:00
BOS
-
PER
1 stop32h 35m
Qatar Airways
Thu 15/1015:30
PER
-
BOS
2 stops35h 45m
Qatar Airways
Deal found 6/5$1,961
Sat 15/815:00
BOS
-
PER
2 stops32h 15m
American Airlines
Sun 30/823:45
PER
-
BOS
2 stops30h 57m
American Airlines
Deal found 6/5$2,082
Sat 15/815:00
BOS
-
PER
2 stops32h 15m
American Airlines
Tue 1/910:35
PER
-
BOS
2 stops32h 47m
American Airlines
Deal found 7/5$2,091
Fri 5/616:29
BOS
-
PER
2 stops30h 46m
American Airlines
Fri 12/623:45
PER
-
BOS
2 stops35h 12m
American Airlines
Deal found 6/5$2,151
Sat 6/616:29
BOS
-
PER
2 stops30h 46m
American Airlines
Fri 12/623:55
PER
-
BOS
2 stops35h 02m
American Airlines
Deal found 7/5$2,167
Wed 25/1121:05
BOS
-
PER
2 stops35h 05m
Qatar Airways
Tue 1/1222:45
PER
-
BOS
1 stop28h 35m
Qatar Airways
Deal found 7/5$2,169
Mon 17/822:00
BOS
-
PER
1 stop32h 35m
Qatar Airways
Mon 28/922:45
PER
-
BOS
1 stop28h 30m
Qatar Airways
Deal found 4/5$2,178
Sat 15/805:45
BOS
-
PER
3 stops42h 45m
United Airlines
Sun 30/823:45
PER
-
BOS
3 stops36h 09m
United Airlines
Deal found 7/5$2,220

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 7 May 2026.

Round-trip from

$1,855

Popular in

October

Cheapest in

November

Average price

$2,204
1/11-22/11
  • 1/11-22/11
  • 4 total stops
  • 96h 00m total
  • Boston to Perth
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($53 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($107 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
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 7 May 2026.
Use the filters below to find and compare flights from Boston to Perth that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Tue 6/10

22:00-18:35

1 stop32h 35m

Perth

Thu 15/10

15:30-15:15

2 stops35h 45m

$1,961

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Mon 2/11

18:32-23:55

2 stops40h 23m

Perth

Sat 7/11

01:15-00:05

2 stops35h 50m

$2,249

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Mon 17/8

23:05-00:40

2 stops37h 35m

Perth

Mon 28/9

22:20-14:10

1 stop27h 50m

$2,272

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Thu 13/8

14:03-14:40

2 stops36h 37m

Perth

Wed 26/8

15:30-21:58

3 stops42h 28m

$2,289

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Sat 15/8

08:43-18:35

2 stops45h 52m

Perth

Sun 30/8

12:20-15:15

2 stops38h 55m

$2,329

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Mon 2/11

22:10-17:20

1 stop30h 10m

Perth

Sun 8/11

10:30-13:55

2 stops64h 25m

$2,341
Fastest return journey

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Sun 1/11

22:10-23:55

2 stops36h 45m

Perth

Sun 22/11

22:20-13:55

1 stop28h 35m

$2,341

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Sat 15/8

23:05-17:35

1 stop30h 30m

Perth

Wed 2/9

12:15-14:10

2 stops37h 55m

$2,343

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Wed 20/5

18:20-11:40

2 stops29h 20m

Perth

Sun 7/6

23:55-01:11

2 stops37h 16m

$2,398

BostonPerth

BOS - PER

BOSPER

Boston Logan Intl

Wed 20/5

08:05-11:40

3 stops39h 35m

Perth

Tue 16/6

15:30-17:20

2 stops37h 50m

$2,427

Flights are sorted by cheapest return flights first.

Deals found on 6/5

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

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, November is the cheapest month in which you can book a flight from Boston to Perth (average of $1,939). Flying from Boston to Perth in October is currently the most expensive (average of $3,390). 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 Qatar Airways, Emirates, and United Airlines fly from Boston to Perth in about 32h 35m. The time it takes to get you to your destination can typically vary by up to 5h. 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, November is the cheapest month in which you can book a flight from Boston to Perth (average of $1,939). Flying from Boston to Perth in October is currently the most expensive (average of $3,390). 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
Fremantle
Rottnest Island
Mandurah

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.

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 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.