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$179+ Cheap flights from Cancún (CUN) to Puerto Rico

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
CUN — SJU
Aug 9 — Aug 161
Sun 8/9
Sun 8/16
1 adult, Economy
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Cheap flight deals from Cancún to Puerto Rico

Cheapest flights from Cancún to Puerto Rico
Explore the most affordable flight options available from Cancún to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 10, 2026.

This United Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:51 am
CUN
-
SJU
1 stop11h 47m
United Airlines
Sun 10/184:55 pm
SJU
-
CUN
2 stops22h 42m
United Airlines
Deal found 7/8$354
This United Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/215:22 pm
CUN
-
SJU
1 stop26h 16m
United Airlines
Mon 8/247:00 am
SJU
-
CUN
1 stop30h 02m
United Airlines
Deal found 7/7$357
This Gotogate deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1712:35 pm
CUN
-
SJU
1 stop26h 45m
Arajet
Tue 9/224:30 pm
SJU
-
CUN
1 stop24h 04m
Arajet
Deal found 7/5$386
This United Airlines deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:51 am
CUN
-
SJU
1 stop11h 47m
United Airlines
Sat 10/247:00 am
SJU
-
CUN
1 stop8h 37m
United Airlines
Deal found 7/9$397
This United Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/255:22 pm
CUN
-
SJU
2 stops20h 22m
United Airlines
Thu 8/274:55 pm
SJU
-
CUN
1 stop23h 17m
United Airlines
Deal found 7/8$398
This Kiwi.com deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/161:10 am
CUN
-
SJU
2 stops17h 50m
Multiple Airlines
Tue 9/225:33 am
SJU
-
CUN
1 stop17h 28m
Multiple Airlines
Deal found 7/5$400
This American Airlines deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/24:25 pm
CUN
-
SJU
1 stop15h 59m
American Airlines
Tue 10/66:20 am
SJU
-
CUN
1 stop7h 47m
American Airlines
Deal found 7/9$412
This JetBlue deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1912:45 pm
CUN
-
SJU
1 stop10h 13m
JetBlue
Wed 8/266:00 am
SJU
-
CUN
1 stop6h 45m
JetBlue
Deal found 7/5$419
This JetBlue deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/612:45 pm
CUN
-
SJU
1 stop10h 13m
JetBlue
Thu 8/136:00 am
SJU
-
CUN
1 stop6h 45m
JetBlue
Deal found 7/7$420
This Kiwi.com deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/65:25 am
CUN
-
SJU
2 stops15h 18m
Multiple Airlines
Thu 8/136:17 pm
SJU
-
CUN
1 stop16h 33m
Multiple Airlines
Deal found 7/7$421
This Copa Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/297:01 am
CUN
-
SJU
1 stop8h 13m
Copa Airlines
Tue 9/16:16 pm
SJU
-
CUN
1 stop22h 19m
Copa Airlines
Deal found 7/8$427

Find flight deals from Cancún to Puerto Rico

Keep the following information in mind while searching for Cancún to Puerto Rico flight deals. Data was last updated July 10, 2026.

Round-trip from

$354
(United Airlines)

One-way from

$179
(Kiwi.com)

Popular in

May

Cheapest in

April

Average price

$395
From Cancun to Puerto Rico
Search Deals
One-way flight from Cancun to Puerto Rico
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($47 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Cancún to Puerto Rico that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 10, 2026.
Use the filters below to find and compare flights from Cancún to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Fri 8/21

5:22 pm-8:38 pm

1 stop26h 16m

San Juan Luis Munoz Marin Intl

Mon 8/24

7:00 am-12:02 pm

1 stop30h 02m

$354

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Wed 10/21

7:51 am-8:38 pm

1 stop11h 47m

San Juan Luis Munoz Marin Intl

Sat 10/24

7:00 am-2:37 pm

1 stop8h 37m

$397

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Tue 8/25

5:22 pm-2:44 pm

2 stops20h 22m

San Juan Luis Munoz Marin Intl

Thu 8/27

3:56 pm-7:19 pm

2 stops28h 23m

$398
Quickest round-trip

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Fri 8/21

12:45 pm-11:58 pm

1 stop10h 13m

San Juan Luis Munoz Marin Intl

Mon 8/24

6:00 am-11:45 am

1 stop6h 45m

$419

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Wed 8/19

12:45 pm-11:58 pm

1 stop10h 13m

San Juan Luis Munoz Marin Intl

Wed 8/26

6:00 am-11:45 am

1 stop6h 45m

$419

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Thu 8/6

12:45 pm-11:58 pm

1 stop10h 13m

San Juan Luis Munoz Marin Intl

Thu 8/13

6:00 am-11:45 am

1 stop6h 45m

$420

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Sat 8/29

7:01 am-4:14 pm

1 stop8h 13m

San Juan Luis Munoz Marin Intl

Tue 9/1

6:16 pm-3:35 pm

1 stop22h 19m

$427

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Mon 8/24

12:45 pm-11:58 pm

1 stop10h 13m

San Juan Luis Munoz Marin Intl

Mon 8/31

6:00 am-11:45 am

1 stop6h 45m

$438

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Sun 8/23

7:51 am-12:54 pm

2 stops28h 03m

San Juan Luis Munoz Marin Intl

Thu 8/27

4:55 pm-10:06 am

2 stops18h 11m

$438
Cheapest one-way

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Wed 8/5

9:50 pm-9:43 pm

2 stops22h 53m

$182

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/9

Showing 1-10 of 20 resultsSorted by cheapest first
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Best time to book a flight from Cancún to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Cancún with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Cancún to Puerto Rico

What is the cheapest month to book a flight from Cancún to Puerto Rico?

Currently, April is the cheapest month in which you can book a flight from Cancún to Puerto Rico (average of $113). Flying from Cancún to Puerto Rico in June is currently the most expensive (average of $399). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How often are flights from Cancún to Puerto Rico delayed?

About 33% of weekly flights between Cancún and Puerto Rico have experienced delays in the past year, with the average delay time being 153 minutes.

What is the most punctual flight time for Cancún to Puerto Rico flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Cancún to Puerto Rico flights?

Over the last year, JetBlue have had the lowest number of delays on this route, with just 33% of flights being delayed.

Related info for your journey

Find useful and relevant information for your journey from Cancún to Puerto Rico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Cancún to Puerto Rico?

    Cancun (CUN), located 8.9 mi from the city center, is the airport you fly out of when you book flights from Cancún to Puerto Rico.

  • How long is the flight from Cancún to Puerto Rico?

    United Airlines and JetBlue can get you from Cancún to Puerto Rico in just under 10h 13m. Your travel time can differ by up to 16h 03m. The distance from Cancún to Puerto Rico is about 1367 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Cancún to Puerto Rico one-way?

    The cheapest airlines for a one-way flight from Cancún to Puerto Rico are Arajet ($146), Frontier ($157), and JetBlue ($185).

  • Can I find deals for flights from Cancún to Puerto Rico that include hotel bookings?

    Yes. In addition to deals on Cancún to Puerto Rico flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Cancún to Puerto Rico?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cancún to Puerto Rico.

  • Can I find deals for business class flights from Cancún to Puerto Rico?

    Yes. Cheapflights offers flight deals from Cancún to Puerto Rico by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Cancún to Puerto Rico?

    Currently, April is the cheapest month in which you can book a flight from Cancún to Puerto Rico (average of $113). Flying from Cancún to Puerto Rico in June is currently the most expensive (average of $399). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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See prices for flight routes from nearby airports that may be better suited for you.
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