$1,635 Find Cheap Flights to Puerto Rico

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from Australia to Puerto Rico departing on 17/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Book Cheap Puerto Rico Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights to Puerto Rico that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to Puerto Rico

Fri, 17 Apr - Fri, 24 Apr
American Airlines Logo
09:10 - 21:24
SYD
-
SJU
26h 14m
2 stops
American Airlines Logo
11:43 - 07:05
SJU
-
SYD
29h 22m
2 stops
$1,635American Airlines
Fri, 17 Apr - Fri, 24 Apr
American Airlines Logo
12:00 - 23:02
SYD
-
SJU
25h 02m
1 stop
American Airlines Logo
13:31 - 07:05
SJU
-
SYD
27h 34m
2 stops
$1,645American Airlines
Wed, 15 Apr - Wed, 22 Apr
Delta Logo
09:15 - 20:24
SYD
-
SJU
25h 09m
2 stops
Delta Logo
06:15 - 06:50
SJU
-
SYD
34h 35m
2 stops
$1,655Delta
Wed, 15 Apr - Wed, 22 Apr
American Airlines Logo
09:00 - 23:02
SYD
-
SJU
28h 02m
2 stops
American Airlines Logo
15:34 - 06:55
SJU
-
SYD
25h 21m
1 stop
$1,671American Airlines
Fri, 17 Apr - Fri, 24 Apr
United Airlines Logo
09:30 - 20:38
SYD
-
SJU
25h 08m
2 stops
United Airlines Logo
07:40 - 07:00
SJU
-
SYD
33h 20m
2 stops
$1,770United Airlines
Fri, 17 Apr - Fri, 24 Apr
American Airlines Logo
12:00 - 23:02
SYD
-
SJU
25h 02m
1 stop
American Airlines Logo
13:31 - 07:05
SJU
-
SYD
27h 34m
2 stops
$1,780American Airlines
Fri, 17 Apr - Fri, 24 Apr
American Airlines Logo
12:00 - 23:02
SYD
-
SJU
25h 02m
1 stop
American Airlines Logo
06:45 - 06:55
SJU
-
SYD
34h 10m
1 stop
$1,784American Airlines
Fri, 17 Apr - Fri, 24 Apr
American Airlines Logo
12:00 - 04:32
SYD
-
SJU
30h 32m
1 stop
American Airlines Logo
06:45 - 06:55
SJU
-
SYD
34h 10m
1 stop
$2,352American Airlines
Sun, 12 Apr - Sat, 18 Apr
United Airlines Logo
09:30 - 17:38
SYD
-
SJU
46h 08m
2 stops
United Airlines Logo
16:55 - 06:55
SJU
-
SYD
48h 00m
2 stops
$2,456United Airlines
Mon, 1 Jun - Fri, 5 Jun
Delta Logo
09:15 - 22:17
SYD
-
SJU
27h 02m
2 stops
Delta Logo
13:14 - 06:50
SJU
-
SYD
27h 36m
2 stops
$2,476Delta
Booking Insights

KAYAK's insights & trends for flights to Puerto Rico

Get data-powered insights and trends into flights to Puerto Rico to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Australia to Puerto Rico?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Australia to Puerto Rico, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Australia to Puerto Rico is August, when tickets cost $1,096 (return) on average. On the other hand, the most expensive months are January and December, when the average cost of round-trip tickets is $2,392 and $2,386 respectively.

Good to know

Low seasonFebruary
Cheapest flight$1,635
Best time to beat the crowds (6% less expensive on average)
Most popular time to fly and prices are also 2% lower on average.
Flight from Sydney to San Juan

FAQs - booking Puerto Rico flights

  • How does KAYAK find such low prices on flights from Australia to Puerto Rico?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Australia to Puerto Rico.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Australia to Puerto Rico?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Australia to Puerto Rico is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Australia to Puerto Rico?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Australia to Puerto Rico with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Australia to Puerto Rico?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Australia to Puerto Rico up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Puerto Rico

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Puerto Rico flight deals.

Reviews of the top airlines flying to Puerto Rico

 
Need help choosing which airline to fly with from Australia to Puerto Rico? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
Qatar AirwaysOverall score based on 3745 reviews
7.9Crew
7.3Food
7.4Comfort
7.4Entertainment
7.5Boarding
Airline reviews

Very difficult to check in and almost missed flight. No room in seats and had a middle seat. I tried to create an account and check in before to change seat and unable to. I do not understand why I wasn’t on a Qatar flight from on Bengalore to Doha when they left at the same time. Disappointed in the Kayak booking process.

2.0 MediocreBrian, Feb 2026
BLR - DOH
Read more Qatar Airways reviews

Very difficult to check in and almost missed flight. No room in seats and had a middle seat. I tried to create an account and check in before to change seat and unable to. I do not understand why I wasn’t on a Qatar flight from on Bengalore to Doha when they left at the same time. Disappointed in the Kayak booking process.

The seat cushions are absolutely lacking, not sure if they know the passengers are traveling for 14 hours straight, but the padding made our back and butt ache like crazy. The entertainment console had its own problems, either the headphone jack wasn't working or the power outlet via usb or ac outlet was not working. Not to mention the seat handles were not adjustable in some planes in the middle or on the aisle. Qatar/Indigo may be operating a very old fleet of planes to make as much profit as possible, but passengers may not be following them for long, should this treatment of its customers continue. Qatar/Indigo, wake up and do it right by your customers, or they may not be your customers anymore.

Friendly and discreet staff. Could have done with a few more offers of water/snacks overnight. Movie and tv selection notably poor. Seats not especially comfortable

Lobster starter in business class was not good, tough, served cold, and without butter. Movie selection was missing latest releases, did not offer older classic, high quality movies

Awesome hospitality, awesome staff, awesome food & awesome travel time. Thanks

Boarding from DOH to SYD the Business Class were pointed in a separate gate but no one there to receive us. Otherwise it was ok.

It never happened. Me flight from Doha to São Paulo was lated and the time of waiting for the luggage arrives when we arrived in São Paulo was about 1 hour and half. So it took a lot of time just waiting the luggage of flight that was already late, consequently we lost the flight to Recife with Latam Airlines and had to go to the Qatar office to arrange another flight to us to Recife, that one with Azul Airlines. It was more 4 hours waiting to this other flight to knows that this other flight was delayed too, total of 5 hours more at the airport to waiting to go home :/

My flight was delayed. I was rebooked twice and even the second flight that was additional connection in London was delayed too, so I ended up spending more than 24 hours flying between four different countries and to be honest I’m not sure whether I ever want to use this airline again. My luggage is still delete. It’s been more than 48 hours now so to be honest, I’m not even sure how to describe the level of frustration I have.

Nothing to complain. The staff and flight was good especially the seats which was better compared than the cloth ones on Qatar airways

The check-in and crew staff were wonderful. The food was reasonable. The online side Qatar was very poor. Seats were very tight and not very comfortable for a 14 hour flight!

It’s always a great time flying with united airlines.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

Airport terminal was outdated, flight was on a small jet with no wifi

Good flight. However, when booked flight with United, assumed the layover included by United in San Francisco of 1 hr and 40 minutes was sufficient . Not so and would recommend at least 2 hours or more. Needed to go through US immigration (very long lineups), then pick up bags, take all the way to another terminal, running because we did not have sufficient time. We made the flight because they held the door for us but luggage didn’t follow.

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

It was good but only meal served is very less. Meantime good to add rice and chicken in one of meal

Great crew, excellent landing, good food. Over all great experience. Thank you!

My husband and I recently had an unfortunate experience with Lufthansa. At the Philadelphia International airport, the ground staff refused to board us because we didn’t have a current visa stamped on our passports for Frankfurt. We completely understand that this was our mistake. we should have double-checked the visa requirements before our trip. However, the issue that upset us most was how the situation was handled by the staff. They told us they would mark it as “boarding denied due to visa issue”, but instead they recorded it as “no show”. Because of that incorrect entry, our return flight was automatically cancelled as well, which caused additional stress and expense. Mistakes can happen, but we expected more transparency and accuracy from a reputed airline like Lufthansa. It would have made a big difference if the staff had been more careful and considerate in documenting the situation correctly.

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

There was no food available for this red eye... one little waffle cookie for a 6+ hour flight... thank God I was able to sleep some

Everything you need to know for your flight to Puerto Rico

Cabin class types available on flights to Puerto Rico

Cabin classes available on flights to Puerto Rico. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.