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$144+ Cheap flights from Cancún (CUN) to San Juan

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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
CUN — SJU
Apr 17 — Apr 241
Fri 4/17
Fri 4/24
1 adult, Economy
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Cheap flight deals from Cancún to San Juan

Cheapest flights from Cancún to San Juan
Explore the most affordable flight options available from Cancún to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 18, 2026.

This Booking.com deal was found by Cheapflights users on 3/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2510:34 am
CUN
-
SJU
1 stop12h 55m
Frontier
Wed 4/294:35 pm
SJU
-
CUN
1 stop17h 49m
Frontier
Deal found 3/15$275
This CheapOair deal was found by Cheapflights users on 3/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/712:47 pm
CUN
-
SJU
1 stop10h 42m
Multiple Airlines
Thu 4/97:54 pm
SJU
-
CUN
1 stop16h 36m
Multiple Airlines
Deal found 3/16$305
This Expedia deal was found by Cheapflights users on 3/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/249:12 am
CUN
-
SJU
1 stop11h 47m
Spirit Airlines
Thu 4/168:09 pm
SJU
-
CUN
1 stop15h 32m
Spirit Airlines
Deal found 3/17$310
This Kiwi.com deal was found by Cheapflights users on 3/14. 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.
Sat 3/211:00 pm
CUN
-
SJU
1 stop5h 55m
Multiple Airlines
Sat 3/287:54 pm
SJU
-
CUN
1 stop16h 36m
Multiple Airlines
Deal found 3/14$347
This Kiwi.com deal was found by Cheapflights users on 3/17. 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.
Tue 3/249:12 am
CUN
-
SJU
1 stop11h 47m
Multiple Airlines
Thu 4/167:00 am
SJU
-
CUN
2 stops17h 58m
Multiple Airlines
Deal found 3/17$352
This Expedia deal was found by Cheapflights users on 3/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/29:12 am
CUN
-
SJU
1 stop11h 47m
Spirit Airlines
Mon 4/67:54 pm
SJU
-
CUN
1 stop16h 36m
Spirit Airlines
Deal found 3/17$360
This CheapOair deal was found by Cheapflights users on 3/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/309:32 am
CUN
-
SJU
1 stop12h 38m
Multiple Airlines
Thu 5/76:46 pm
SJU
-
CUN
1 stop15h 34m
Multiple Airlines
Deal found 3/16$364
This CheapOair deal was found by Cheapflights users on 3/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2010:34 am
CUN
-
SJU
1 stop12h 55m
Multiple Airlines
Mon 4/275:45 am
SJU
-
CUN
1 stop10h 05m
Multiple Airlines
Deal found 3/17$365
This CheapOair deal was found by Cheapflights users on 3/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1710:34 am
CUN
-
SJU
1 stop12h 55m
Multiple Airlines
Sun 4/265:45 am
SJU
-
CUN
1 stop10h 05m
Multiple Airlines
Deal found 3/15$386
This CheapOair deal was found by Cheapflights users on 3/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/209:12 am
CUN
-
SJU
1 stop11h 47m
Spirit Airlines
Sat 3/287:54 pm
SJU
-
CUN
1 stop16h 36m
Spirit Airlines
Deal found 3/14$392

Find flight deals from Cancún to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Cancún (CUN) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 18, 2026.

Round-trip from

$275
(Booking.com)

One-way from

$144
(Cheapflightsfares)

Popular in

November

Cheapest in

January

Average price

$280
From Cancun to San Juan
Search Deals
One-way flight from Cancun to San Juan
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Cancún to San Juan 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 March 18, 2026.
Use the filters below to find and compare flights from Cancún to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Tue 4/7

11:55 am-8:53 am

2 stops19h 58m

San Juan Luis Munoz Marin Intl

Thu 4/9

7:54 pm-11:30 am

1 stop16h 36m

$365

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Wed 5/6

3:24 pm-8:34 pm

2 stops28h 10m

San Juan Luis Munoz Marin Intl

Sun 5/10

7:20 am-12:02 pm

2 stops29h 42m

$407

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Fri 7/3

1:10 pm-11:58 pm

1 stop9h 48m

San Juan Luis Munoz Marin Intl

Wed 7/8

6:01 am-3:00 pm

1 stop9h 59m

$417

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Mon 4/20

3:11 pm-11:52 am

2 stops19h 41m

San Juan Luis Munoz Marin Intl

Mon 4/27

5:45 am-2:50 pm

1 stop10h 05m

$428

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Thu 8/6

7:01 am-4:14 pm

1 stop8h 13m

San Juan Luis Munoz Marin Intl

Mon 8/10

6:17 pm-10:35 am

1 stop17h 18m

$448

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Thu 4/16

5:22 pm-8:34 pm

2 stops26h 12m

San Juan Luis Munoz Marin Intl

Sat 4/25

7:20 am-12:33 pm

2 stops30h 13m

$453

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Wed 4/8

5:22 pm-9:24 pm

2 stops27h 02m

San Juan Luis Munoz Marin Intl

Wed 4/15

3:56 pm-7:19 pm

2 stops28h 23m

$455

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Mon 7/6

7:01 am-4:14 pm

1 stop8h 13m

San Juan Luis Munoz Marin Intl

Thu 7/9

6:17 pm-10:35 am

1 stop17h 18m

$469
Quickest round-trip

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Mon 5/4

12:55 pm-8:26 pm

1 stop6h 31m

San Juan Luis Munoz Marin Intl

Tue 5/5

7:40 am-12:52 pm

1 stop6h 12m

$484

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Mon 7/27

7:01 am-4:14 pm

1 stop8h 13m

San Juan Luis Munoz Marin Intl

Tue 8/4

3:14 pm-9:58 pm

1 stop7h 44m

$495

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/15

Showing 1-10 of 19 resultsSorted by cheapest first
1
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Best time to book a flight from Cancún to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan 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 San Juan

How far ahead should I book a flight from Cancún to San Juan?

Use this chart to determine the optimal time to book a round-trip flight from Cancún to San Juan. Price data was last updated on March 13, 2026.

Booking 9 days in advance of your planned departure date is, on average, the best time to get cheap flights from Cancún to San Juan. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Cancún to San Juan?

Currently, May is the cheapest month in which you can book a flight from Cancún to San Juan (average of $143). Flying from Cancún to San Juan in February is currently the most expensive (average of $302). 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 San Juan delayed?

About 31% of weekly flights between Cancún and San Juan have experienced delays in the past year, with the average delay time being 180 minutes.

What is the most punctual flight time for Cancún to San Juan 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?

Wednesday 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 San Juan flights?

Over the last year, JetBlue have had the lowest number of delays on this route, with just 31% of flights being delayed.

Related info for your journey

Find useful and relevant information for your journey from Cancún to San Juan. 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 San Juan?

    Located just 8.9 mi from the city center, Cancun is the airport most travelers will use when flying to San Juan from Cancún. Booking flights from Cancun (CUN) to San Juan should be relatively easy as there are 0 daily outbound flights to San Juan from 0 different airlines.

  • How long is the flight from Cancún to San Juan?

    A quick flight from Cancún to San Juan can take about 9h 48m. Spirit Airlines provides one of the quickest options available for as low as $417. Cancún and San Juan are separated by a distance of 1367 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Cancún to San Juan one-way?

    $145 is the cheapest one-way deal found within the past few days, from Spirit Airlines. You may also be able to find cheap deals on Arajet and Copa Airlines, with prices starting from $146 and $150, respectively.

  • Can I find deals for flights from Cancún to San Juan that include hotel bookings?

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

  • How can I find direct flights from Cancún to San Juan?

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

  • Can I find deals for business class flights from Cancún to San Juan?

    Yes. Cheapflights offers flight deals from Cancún to San Juan 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 San Juan?

    Currently, May is the cheapest month in which you can book a flight from Cancún to San Juan (average of $143). Flying from Cancún to San Juan in February is currently the most expensive (average of $302). 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

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Cancún to Luis Munoz Marin Intl flights

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