Find flights
When to book
Airlines
FAQs

Cheap flights from Australia to Puerto Rico from $1,866

SYD — SJU
10 Oct — 17 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Australia to Puerto Rico

Enter your travel dates to find the best prices.

Cheapest flights from Australia to Puerto Rico

Mon 26/1011:10 -
2 stops27h 10m
Fri 30/1016:29 -
2 stops49h 31m
Deal found 8/9$1,866
Mon 26/1009:20 -
1 stop26h 04m
Fri 30/1016:50 -
2 stops47h 10m
Deal found 8/9$1,872
Mon 7/1209:20 -
1 stop27h 04m
Mon 11/113:00 -
2 stops29h 20m
Deal found 8/9$2,120
Mon 7/1211:15 -
2 stops24h 58m
Tue 12/115:14 -
2 stops26h 46m
Deal found 8/9$2,403
Sun 8/1116:50 -
2 stops42h 58m
Wed 25/1105:30 -
2 stops45h 15m
Deal found 5/9$2,463
Mon 7/1211:15 -
2 stops25h 23m
Mon 11/115:14 -
2 stops26h 46m
Deal found 8/9$2,600
Tue 8/1211:15 -
2 stops24h 58m
Mon 11/117:07 -
1 stop46h 48m
Deal found 8/9$2,676
Mon 7/1211:20 -
2 stops28h 16m
Mon 11/121:35 -
2 stops54h 45m
Deal found 5/9$2,974

Find flight deals from Australia to Puerto Rico

Round-trip from

$1,866

Popular in

March

Cheapest in

January

Average price

$1,778
American Airlines
  • American Airlines
  • 26/10-30/10
  • 4 total stops
  • 76h 41m total
  • Australia to Puerto Rico
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($659 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($143 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Australia to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneySan Juan

SYD Sydney Kingsford Smith - SJU San Juan Luis Munoz Marin Intl

SYDSJU

Sydney Kingsford Smith

Mon 26/10

11:10-23:20

2 stops27h 10m

San Juan Luis Munoz Marin Intl

Fri 30/10

16:17-09:00

2 stops49h 43m

$1,866

SydneySan Juan

SYD Sydney Kingsford Smith - SJU San Juan Luis Munoz Marin Intl

SYDSJU

Sydney Kingsford Smith

Mon 26/10

09:20-20:24

1 stop26h 04m

San Juan Luis Munoz Marin Intl

Fri 30/10

16:50-07:00

2 stops47h 10m

$1,872

SydneySan Juan

SYD Sydney Kingsford Smith - SJU San Juan Luis Munoz Marin Intl

SYDSJU

Sydney Kingsford Smith

Mon 7/12

11:20-21:13

2 stops24h 53m

San Juan Luis Munoz Marin Intl

Mon 11/1

17:07-06:55

1 stop46h 48m

$2,979

SydneySan Juan

SYD Sydney Kingsford Smith - SJU San Juan Luis Munoz Marin Intl

SYDSJU

Sydney Kingsford Smith

Sat 21/11

22:10-16:40

3 stops57h 30m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-14:00

Nonstop0h 00m

$3,109
Fastest return journey

SydneySan Juan

SYD Sydney Kingsford Smith - SJU San Juan Luis Munoz Marin Intl

SYDSJU

Sydney Kingsford Smith

Sat 21/11

09:20-22:22

2 stops52h 02m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-14:00

Nonstop0h 00m

$3,346

Flights are sorted by cheapest return flights first.

Deals found on 9/9

Sorted by cheapest first

Best time to book a flight from Australia to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Australia with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Australia to Puerto Rico

What is the cheapest month to book a flight from Australia to Puerto Rico?

Currently, May is the cheapest month in which you can book a flight from Australia to Puerto Rico (average of $1,418). Flying from Australia to Puerto Rico in March is currently the most expensive (average of $3,101). 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.

Reviews of airlines servicing Puerto Rico

Get a feel of what it's like to fly with United Airlines from Australia to Puerto Rico by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,188 reviews
Check prices

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
10,188 reviews
United Airlines
7.4
Good
10,188 reviews
Check prices

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

Related info for your journey

  • How long is the flight from Australia to Puerto Rico?

    Airlines like American Airlines and United Airlines fly from Australia to Puerto Rico in about 26h 04m. The time it takes to get you to your destination can typically vary by up to 1h 06m. Australia and Puerto Rico are separated by a distance of 15944 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • Can I find deals for flights from Australia to Puerto Rico that include hotel bookings?

    Yes. In addition to deals on Australia to Puerto Rico flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Australia to Puerto Rico?

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

  • Can I find deals for business class flights from Australia to Puerto Rico?

    Yes. Cheapflights offers flight deals from Australia to Puerto Rico 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 Australia to Puerto Rico?

    Currently, May is the cheapest month in which you can book a flight from Australia to Puerto Rico (average of $1,418). Flying from Australia to Puerto Rico in March is currently the most expensive (average of $3,101). 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

Top airline flying from Australia to Puerto Rico

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,602Average$2,242FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from Australia to Puerto Rico?

When you search for this flight from Australia to Puerto Rico, 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 Australia to Puerto Rico?

Millions of users choose and trust Cheapflights to book the best flight deals from Australia to Puerto Rico for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Australia to Puerto Rico with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Australia to Puerto Rico flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Australia to Puerto Rico become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Puerto Rico from Australia today and book when prices fit your budget.

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.