$1,937 Find Cheap Flights to Puerto Rico

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Australia to Puerto Rico departing on 10/1. 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

Mon, 29 Dec - Mon, 5 Jan
Delta Logo
14:15 - 15:29SYD-SJU
40h 14m2 stops
Delta Logo
06:15 - 08:30SJU-SYD
35h 15m2 stops
$2,166Delta
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Fri, 26 Dec - Sun, 4 Jan
Delta Logo
10:40 - 12:57SYD-SJU
41h 17m2 stops
Delta Logo
18:40 - 08:30SJU-SYD
46h 50m2 stops
$2,241Delta
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Fri, 26 Dec - Fri, 2 Jan
Delta Logo
10:40 - 12:57SYD-SJU
41h 17m2 stops
Delta Logo
18:40 - 06:50SJU-SYD
45h 10m2 stops
$2,316Delta
Find Deal
Mon, 29 Dec - Sun, 4 Jan
United Airlines Logo
11:50 - 21:26SYD-SJU
24h 36m1 stop
United Airlines Logo
02:05 - 06:20SJU-SYD
37h 15m2 stops
$2,318United Airlines
Find Deal
Sat, 27 Dec - Sun, 4 Jan
Delta Logo
14:15 - 14:33SYD-SJU
39h 18m2 stops
Delta Logo
18:40 - 08:30SJU-SYD
46h 50m2 stops
$2,393Delta
Find Deal
Mon, 29 Dec - Mon, 5 Jan
United Airlines Logo
11:50 - 16:36SYD-SJU
43h 46m1 stop
United Airlines Logo
02:05 - 07:00SJU-SYD
37h 55m2 stops
$2,567United Airlines
Find Deal
Sun, 28 Dec - Sun, 4 Jan
American Airlines Logo
21:25 - 11:57SYD-SJU
29h 32m2 stops
American Airlines Logo
15:49 - 06:55SJU-SYD
24h 06m1 stop
$2,656American Airlines
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Sun, 8 Mar - Tue, 10 Mar
American Airlines Logo
11:20 - 03:55SYD-SJU
31h 35m2 stops
American Airlines Logo
15:15 - 09:00SJU-SYD
26h 45m2 stops
$2,668American Airlines
Find Deal
Sun, 28 Dec - Tue, 6 Jan
Multiple Airlines Logo
14:05 - 00:33SYD-SJU
25h 28m1 stop
Multiple Airlines Logo
13:22 - 06:55SJU-SYD
26h 33m1 stop
$3,897Multiple Airlines
Find Deal
Fri, 26 Dec - Tue, 6 Jan
Multiple Airlines Logo
14:05 - 00:33SYD-SJU
25h 28m1 stop
Multiple Airlines Logo
13:22 - 06:55SJU-SYD
26h 33m1 stop
$3,969Multiple Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for flights to Puerto Rico

Get data-powered insights and trends for 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 March, when tickets cost $1,517 (return) on average. On the other hand, the most expensive months are December and January, when the average cost of round-trip tickets is $2,550 and $2,533 respectively.

Good to know

Low seasonJune
Cheapest flight$1,937
Best time to beat the crowds (7% less expensive on average)
Most popular time to fly (15% more expensive on average)
Flight from Sydney to San Juan Airport

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.

  • What is the cheapest day to fly to Puerto Rico?

    Based on KAYAK data, the cheapest day to fly to Puerto Rico is Monday when return tickets can be as cheap as $2,413. On the other hand, the most expensive day to fly is Friday, when return prices are $3,403 on average.

  • What is the cheapest time of day to fly to Puerto Rico?

    The cheapest time of day to fly to Puerto Rico is generally in the morning, when retur flights cost $2,365 on average. Morning departures are around 35% cheaper than evening flights, on average. The most expensive time of day to fly to Puerto Rico is generally in the evening, which is peak travel time and where the average cost of a ticket is $3,660.

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 3660 reviews
7.5Boarding
7.4Comfort
7.4Entertainment
7.9Crew
7.3Food
Airline reviews

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

8.0 ExcellentAnonymous, Oct 2025ORD - DOH
Read more Qatar Airways reviews

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.

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!

I prebooked a comfort plus seat on this flight and therefore the flight was comfy. I got the correct seat in the correct section of the plane that I have booked, that's this. Flight was comfortable. Staff were average on the flight, appearing to be rushed and short in engagement with travellers, perhaps this to maximise there rest time on the flight.

Economy travel is really hard with no room to move especially when the person sitting beside you is an XL or XXL size person who if moving could hit your face

It was ok, not much more can be said, as long as airlines/aircraft manufacturers insist on cramming in as many seats as possible....best of a bad situations, seats are simply too uncomfortable to sit in for more than a few hours. Lack of flexible headrests not a help on long overnight flights either.

The American/Hollywood movies in the entertainment system lack english subtitles, they tend to have only arabic subtitles. Coupled with the low quality airplane earphones and cabin noise, it sometimes is difficult to follow the movie dialogues.

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

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

This flight was perfect. No complaints and only the highest regard for the crew and ground staff and how they executed perfectly. I fly a lot with United and would request predictability and transparency in their operations instead of last minute changes.

I found the staff to not be very attentive at all. When paying for Business Class you expect a certain type of service and that was not found. They were almost rude even

Efficient, calm when things were delayed and kept us regularly informed of what was happening.

Smooth flight, especially take off and landing, and great crew on board. Really loved the stroopwaffles!

I was charged for my daughters bag when I am supposed to receive two free checked bags with my United Explorer card.

The personnel were professional and friendly. The Boeing 737 Max 9 is too claustrophobic and was very warm at both airport gates, and still warm in the air.

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.

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