$1,101 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, 7 May - Mon, 11 May
United Airlines Logo
10:20 - 21:24
SYD
-
SJU
25h 04m
2 stops
United Airlines Logo
07:00 - 07:00
SJU
-
SYD
34h 00m
2 stops
$2,956United Airlines
Thu, 7 May - Mon, 11 May
United Airlines Logo
10:20 - 23:50
SYD
-
SJU
27h 30m
2 stops
United Airlines Logo
14:55 - 07:00
SJU
-
SYD
26h 05m
2 stops
$2,958United Airlines
Sun, 3 May - Thu, 7 May
United Airlines Logo
09:30 - 23:50
SYD
-
SJU
28h 20m
2 stops
United Airlines Logo
07:40 - 06:55
SJU
-
SYD
33h 15m
2 stops
$3,096United 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
$3,105United 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
$3,131United Airlines
Thu, 7 May - Mon, 11 May
American Airlines Logo
09:10 - 04:32
SYD
-
SJU
33h 22m
2 stops
American Airlines Logo
15:36 - 06:55
SJU
-
SYD
25h 19m
1 stop
$3,297American Airlines
Thu, 7 May - Mon, 11 May
American Airlines Logo
09:10 - 23:03
SYD
-
SJU
27h 53m
2 stops
American Airlines Logo
15:36 - 06:55
SJU
-
SYD
25h 19m
1 stop
$3,298American Airlines
Thu, 7 May - Mon, 11 May
American Airlines Logo
12:00 - 23:03
SYD
-
SJU
25h 03m
1 stop
American Airlines Logo
15:36 - 06:55
SJU
-
SYD
25h 19m
1 stop
$3,300American Airlines
Sun, 3 May - Thu, 7 May
American Airlines Logo
12:00 - 23:02
SYD
-
SJU
25h 02m
1 stop
American Airlines Logo
10:03 - 07:05
SJU
-
SYD
31h 02m
2 stops
$3,447American 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
$3,456American 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 August, when tickets cost $1,114 (return) on average. On the other hand, the most expensive months are January and December, when the average cost of round-trip tickets is $2,431 and $2,394 respectively.

Good to know

Low seasonFebruary
Cheapest flight$1,101
Most popular time to fly (20% 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 9533 reviews
8.1Crew
7.7Boarding
7.3Comfort
7.1Entertainment
6.6Food
Airline reviews

Just a bad day to fly. Flight was delayed from scheduled 6:50 pm departure to 8:50 pm. Combination of factors mostly related to weather at the destination airport (which is where the incoming flight originated) which delayed the inbound flight over an hour. Once on board, we taxied but had to hold again on the taxiway for 10 minutes or so. We did not get wheels up until after 9 pm. The flight was smooth but about 18 minutes from our destination, we had to hold for several minutes more due to weather at ORD. We finally landed at ORD about 11:08 pm (accounting for the time difference, that was about a 3 hour delay from our scheduled departure time). It felt like we were never going to get to our destination. But the flight crew and attendants were very good. The movie selection onboard was also very nice. Got to watch half of a movie just during our taxi from the gate at ATL due to the delay!

2.0 MediocreDr. Joseph, Apr 2026
ATL - ORD
Read more United Airlines reviews

Just a bad day to fly. Flight was delayed from scheduled 6:50 pm departure to 8:50 pm. Combination of factors mostly related to weather at the destination airport (which is where the incoming flight originated) which delayed the inbound flight over an hour. Once on board, we taxied but had to hold again on the taxiway for 10 minutes or so. We did not get wheels up until after 9 pm. The flight was smooth but about 18 minutes from our destination, we had to hold for several minutes more due to weather at ORD. We finally landed at ORD about 11:08 pm (accounting for the time difference, that was about a 3 hour delay from our scheduled departure time). It felt like we were never going to get to our destination. But the flight crew and attendants were very good. The movie selection onboard was also very nice. Got to watch half of a movie just during our taxi from the gate at ATL due to the delay!

Flight to Japan was was better across the board than the return to USA. Entertainment: Movie selection was old and not to my liking. Way too many woke choices. Not enough selections for sports or drama. Service: some of the crew were great. Not all. I paid for business class. a premium. Some of the crew thought they 'had' t do there job instead of wanting to serve and be polite. Food: Way to Japan was good. Way back to USA bad. Boarding: Wat out did not offer Business only; had to go thru general. If you pay for business, you should get business perks. Suggest you look for other than United for travel to Asia

Terrible experience! delay 2 time and say i dont have ticket

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

They never clean the toilet, and the food is worse

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.

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!

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.