$1,340 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 1/6. 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

Thu, 30 Apr - Thu, 7 May
American Airlines Logo
09:10 - 23:02
SYD
-
SJU
27h 52m
2 stops
American Airlines Logo
13:31 - 07:05
SJU
-
SYD
27h 34m
2 stops
$2,205American Airlines
Thu, 30 Apr - Thu, 7 May
American Airlines Logo
12:00 - 04:32
SYD
-
SJU
30h 32m
1 stop
American Airlines Logo
11:38 - 07:05
SJU
-
SYD
29h 27m
2 stops
$2,215American Airlines
Thu, 30 Apr - Thu, 7 May
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
$2,219American Airlines
Thu, 30 Apr - Thu, 7 May
Multiple Airlines Logo
09:10 - 21:24
SYD
-
SJU
26h 14m
2 stops
Multiple Airlines Logo
11:43 - 10:30
SJU
-
SYD
32h 47m
3 stops
$2,999Multiple Airlines
Sun, 3 May - Thu, 7 May
United Airlines Logo
09:30 - 20:38
SYD
-
SJU
25h 08m
2 stops
United Airlines Logo
07:40 - 06:55
SJU
-
SYD
33h 15m
2 stops
$3,118United Airlines
Sun, 3 May - Thu, 7 May
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
$3,126United Airlines
Sun, 3 May - Thu, 7 May
United Airlines Logo
09:30 - 21:24
SYD
-
SJU
25h 54m
2 stops
United Airlines Logo
07:20 - 06:55
SJU
-
SYD
33h 35m
2 stops
$3,131United Airlines
Sun, 3 May - Wed, 6 May
United Airlines Logo
09:30 - 20:38
SYD
-
SJU
25h 08m
2 stops
United Airlines Logo
01:00 - 06:55
SJU
-
SYD
39h 55m
2 stops
$3,144United Airlines
Thu, 30 Apr - Thu, 7 May
Multiple Airlines Logo
06:25 - 23:02
SYD
-
SJU
30h 37m
3 stops
Multiple Airlines Logo
11:43 - 10:30
SJU
-
SYD
32h 47m
3 stops
$3,345Multiple Airlines
Sun, 3 May - Thu, 7 May
American Airlines Logo
12:00 - 23:02
SYD
-
SJU
25h 02m
1 stop
American Airlines Logo
11:43 - 07:05
SJU
-
SYD
29h 22m
2 stops
$3,470American Airlines
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 October, when tickets cost $1,076 (return) on average. On the other hand, the most expensive months are March and December, when the average cost of round-trip tickets is $3,245 and $2,467 respectively.

Good to know

Low seasonJanuary
Cheapest flight$1,340
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly (15% more expensive 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 airline 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
United AirlinesOverall score based on 9546 reviews
7.3Comfort
8.1Crew
7.7Boarding
7.1Entertainment
6.6Food
Airline reviews

The business class seat is exceptional. I wish the food is more palatable.

8.0 ExcellentAnonymous, Mar 2026
LAX - HND
Read more United Airlines reviews

The business class seat is exceptional. I wish the food is more palatable.

we did a return flight from Paris CDG to SFO. This trip was much better than the departing flight SFO to CDG. The food was better quality, the crew was nicer, and the interior of the plane seemed cleaner.

They never clean the toilet, and the food is worse

Poor. Crew allowed children to run around and scream and disturb passanger’s seats.

Given I (and I’m assuming most people) have both carry in and a personal item included in their fare, I find it very unfair that on neither of my flights I was able to use the overhead for my small backpack because they were completely rammed with luggage, people personal items, jackets, hats and other items. So the only item I brought in had to be stuffed under my seat while they had their leg room and sat comfortable with all of their items in the overhead. This has to stop because I was uncomfortable on both flights when I only had one smaller item that could not be checked due to its contents (medication etc). Plenty of people could have checked theirs but chose not to and then took up the space allotment for 2 people.

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.

Not being stranded in Chicago for her airport to 11:30 tomorrow morning the 3rd

Safe made to destination. Late to start at GVA for icy reasons but we fought our next fly.

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

An international flight on an apron is pretty unusual in my 40 years of traveling. Departure delay. Luggage despite over an hour connection did not make it to the flight. Actually still in Germany. My luggage was not moved until I reached my final destination despite knowing it to be left in Germany upon my arrival in Chicago. The service left me a little off, both going and returning from Europe. Light on in the cabin even during a night flight and lots of traffic no matter what. Maybe passengers want more service? As a frequent traveler i just want to be able to sleep, the food will be better at the destination anyway. So since the cabin crew woke me up I asked for a cocktail, I did not get the best response although sitting in row 20 premium economy. I usually fly premium economy or business and my 2 flight to Europe in 2025 with United both had luggage delays and other minor issues. American flights to Australia, Canada and Europe went smoothly and Premium plus feels very much like business light. Is United Club becoming a waste and Silver/Gold levels another waste??

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.