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$164+ 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 9/26. Fares are subject to change and may not be available on all flights or dates of travel.
CUN — SJU
Sep 2 — Sep 91
Wed 9/2
Wed 9/9
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 August 3, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/31. 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 9/101:54 pm
CUN
-
SJU
1 stop25h 20m
Copa Airlines
Sun 9/206:16 pm
SJU
-
CUN
1 stop17h 17m
Copa Airlines
Deal found 7/31$343
This Copa Airlines deal was found by Cheapflights users on 8/3. 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 8/291:54 pm
CUN
-
SJU
1 stop7h 35m
Copa Airlines
Tue 9/16:16 pm
SJU
-
CUN
1 stop19h 39m
Copa Airlines
Deal found 8/3$372
This Copa Airlines deal was found by Cheapflights users on 7/30. 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.
Fri 10/27:01 am
CUN
-
SJU
1 stop8h 13m
Copa Airlines
Tue 10/66:16 pm
SJU
-
CUN
1 stop22h 19m
Copa Airlines
Deal found 7/30$373
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 9/106:15 am
CUN
-
SJU
2 stops15h 58m
Multiple Airlines
Sun 9/206:16 pm
SJU
-
CUN
1 stop17h 17m
Multiple Airlines
Deal found 7/31$382
This Kiwi.com deal was found by Cheapflights users on 8/2. 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 10/1012:35 pm
CUN
-
SJU
1 stop5h 55m
Multiple Airlines
Wed 10/146:16 pm
SJU
-
CUN
1 stop28h 45m
Multiple Airlines
Deal found 8/2$385
This Arajet deal was found by Cheapflights users on 7/29. 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 Arajet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2412:35 pm
CUN
-
SJU
1 stop26h 45m
Arajet
Sun 9/274:00 pm
SJU
-
CUN
1 stop26h 12m
Arajet
Deal found 7/29$404
This American Airlines deal was found by Cheapflights users on 7/30. 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 10/23:37 pm
CUN
-
SJU
2 stops18h 23m
American Airlines
Tue 10/66:20 am
SJU
-
CUN
1 stop7h 47m
American Airlines
Deal found 7/30$416
This Kiwi.com deal was found by Cheapflights users on 8/2. 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 10/1012:35 pm
CUN
-
SJU
1 stop5h 55m
Multiple Airlines
Tue 10/206:00 am
SJU
-
CUN
2 stops18h 58m
Multiple Airlines
Deal found 8/2$421

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 August 3, 2026.

Round-trip from

$343
(Kiwi.com)

One-way from

$164
(Booking.com)

Popular in

May

Cheapest in

April

Average price

$286
From Cancun to San Juan
Search Deals
One-way flight from Cancun to San Juan
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Highest demand for flights based on searches. 9% potential increase in price ($39 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 3, 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

Sat 8/29

1:54 pm-10:29 pm

1 stop7h 35m

San Juan Luis Munoz Marin Intl

Tue 9/1

6:16 pm-12:55 pm

1 stop19h 39m

$372

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Wed 8/26

7:01 am-10:29 pm

1 stop14h 28m

San Juan Luis Munoz Marin Intl

Mon 8/31

6:17 pm-12:55 pm

1 stop19h 38m

$373

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Thu 9/24

12:35 pm-4:20 pm

1 stop26h 45m

San Juan Luis Munoz Marin Intl

Sun 9/27

4:00 pm-5:12 pm

1 stop26h 12m

$405

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Fri 10/2

3:37 pm-9:24 am

2 stops16h 47m

San Juan Luis Munoz Marin Intl

Tue 10/6

4:29 pm-11:14 am

2 stops19h 45m

$416
Quickest round-trip

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Sat 8/29

8:00 am-9:55 pm

2 stops12h 55m

San Juan Luis Munoz Marin Intl

Tue 9/1

6:00 am-1:07 pm

1 stop8h 07m

$463
Cheapest one-way

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Sat 9/26

10:25 am-11:13 pm

2 stops35h 48m

$180

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Wed 8/26

10:05 pm-7:52 pm

2 stops20h 47m

$186

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Wed 8/26

7:14 pm-7:52 pm

2 stops23h 38m

$192
Quickest one-way

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Wed 8/26

11:15 am-10:29 pm

1 stop10h 14m

$193

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Fri 12/4

4:47 pm-4:08 pm

1 stop22h 21m

$193

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/1

Showing 1-10 of 15 resultsSorted by cheapest first
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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

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

Currently, April is the cheapest month in which you can book a flight from Cancún to San Juan (average of $149). Flying from Cancún to San Juan in May is currently the most expensive (average of $608). 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 much does it cost to fly round-trip from Cancún to San Juan?

Airfare is typical for this route at the moment.
Cancún to San Juan flights typically cost between $208 and $361 in September.
The cheapest round-trip price found within the last 5 days was $343 on Copa Airlines (Sep 10-Sep 20).

How often are flights from Cancún to San Juan delayed?

About 45% of weekly flights between Cancún and San Juan 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 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?

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 San Juan flights?

Over the last year, JetBlue have had the lowest number of delays on this route, with just 45% 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 7h 35m. Copa Airlines provides one of the quickest options available for as low as $372. Cancún and San Juan are separated by a distance of 1367 mi.

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

    $146 is the cheapest one-way deal found within the past few days, from Arajet. You may also be able to find cheap deals on Frontier and JetBlue, with prices starting from $157 and $185, 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, April is the cheapest month in which you can book a flight from Cancún to San Juan (average of $149). Flying from Cancún to San Juan in May is currently the most expensive (average of $608). 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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Alternative routes for Cancún to San Juan

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Cancún to Luis Munoz Marin Intl flights

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