$1,110 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

Mon, 11 May - Mon, 18 May
United Airlines Logo
10:20 - 23:50
SYD
-
SJU
27h 30m
2 stops
United Airlines Logo
07:40 - 07:00
SJU
-
SYD
33h 20m
2 stops
$2,164United Airlines
Mon, 11 May - Mon, 18 May
American Airlines Logo
12:00 - 04:32
SYD
-
SJU
30h 32m
1 stop
American Airlines Logo
10:03 - 07:05
SJU
-
SYD
31h 02m
2 stops
$2,183American Airlines
Sat, 9 May - Sat, 16 May
United Airlines Logo
09:30 - 21:24
SYD
-
SJU
25h 54m
2 stops
United Airlines Logo
14:55 - 07:00
SJU
-
SYD
50h 05m
2 stops
$2,252United Airlines
Sat, 9 May - Sat, 16 May
American Airlines Logo
09:10 - 21:24
SYD
-
SJU
26h 14m
2 stops
American Airlines Logo
13:31 - 06:55
SJU
-
SYD
27h 24m
2 stops
$2,307American Airlines
Sat, 9 May - Sat, 16 May
American Airlines Logo
12:00 - 04:32
SYD
-
SJU
30h 32m
1 stop
American Airlines Logo
15:36 - 06:55
SJU
-
SYD
25h 19m
1 stop
$2,318American Airlines
Sat, 9 May - Sat, 16 May
American Airlines Logo
12:00 - 04:32
SYD
-
SJU
30h 32m
1 stop
American Airlines Logo
10:01 - 07:05
SJU
-
SYD
31h 04m
2 stops
$2,334American Airlines
Sat, 9 May - Sat, 16 May
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
$2,339American Airlines
Mon, 11 May - Mon, 18 May
American Airlines Logo
12:00 - 04:32
SYD
-
SJU
30h 32m
1 stop
American Airlines Logo
15:36 - 06:55
SJU
-
SYD
25h 19m
1 stop
$2,582American Airlines
Sun, 3 May - Thu, 7 May
Japan Airlines Logo
08:55 - 18:30
SYD
-
SJU
47h 35m
2 stops
Japan Airlines Logo
19:25 - 06:20
SJU
-
SYD
44h 55m
2 stops
$2,881Japan 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
$2,982United 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 $1,123 (return) on average. On the other hand, the most expensive months are January and December, when the average cost of round-trip tickets is $2,451 and $2,413 respectively.

Good to know

Low seasonFebruary
Cheapest flight$1,110
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 9514 reviews
7.3Comfort
6.6Food
7.1Entertainment
8.1Crew
7.7Boarding
Airline reviews

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

4.0 Okayjeffrey, Mar 2026
KIX - SFO
Read more United Airlines reviews

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!

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.

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.