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$141+ 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 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
CUN — SJU
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Cancun to San Juan are usually found in May or March, booked 29 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap 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 October 30, 2025.

Round-trip from

$298
(Delta)

One-way from

$141
(Kiwi.com)

Popular in

July

Cheapest in

May

Average price

$316
From Cancun to San Juan
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One-way flight from Cancun to San Juan
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Highest demand for flights based on searches. 4% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find 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 October 30, 2025.

This Expedia deal was found by Cheapflights users on 10/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/211:38 amCUN - SJU
1 stop12h 11mMultiple Airlines
Fri 12/54:10 amSJU - CUN
1 stop10h 03mMultiple Airlines
Deal found 10/30$290
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/206:00 amCUN - SJU
1 stop12h 00mDelta
Fri 11/281:02 pmSJU - CUN
1 stop12h 22mDelta
Deal found 10/29$298
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/216:55 amCUN - SJU
1 stop11h 05mDelta
Fri 11/281:02 pmSJU - CUN
1 stop12h 22mDelta
Deal found 10/29$326
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1411:50 amCUN - SJU
2 stops25h 20mDelta
Thu 11/271:02 pmSJU - CUN
1 stop12h 22mDelta
Deal found 10/29$331
This JetBlue deal was found by Cheapflights users on 10/29. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1411:30 amCUN - SJU
1 stop9h 34mJetBlue
Mon 11/176:45 amSJU - CUN
1 stop7h 31mJetBlue
Deal found 10/29$344
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1411:50 amCUN - SJU
2 stops25h 20mDelta
Sat 11/291:02 pmSJU - CUN
1 stop12h 21mDelta
Deal found 10/29$359
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/134:51 pmCUN - SJU
1 stop27h 35mUnited Airlines
Thu 11/275:50 pmSJU - CUN
1 stop23h 50mUnited Airlines
Deal found 10/29$362
This Copa Airlines deal was found by Cheapflights users on 10/30. 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.
Mon 12/297:00 amCUN - SJU
1 stop8h 11mCopa Airlines
Wed 1/76:14 pmSJU - CUN
1 stop16h 42mCopa Airlines
Deal found 10/30$365
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/108:39 amCUN - SJU
1 stop11h 47mUnited Airlines
Thu 11/275:50 pmSJU - CUN
1 stop23h 50mUnited Airlines
Deal found 10/29$366
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/122:44 pmCUN - SJU
1 stop29h 42mUnited Airlines
Thu 11/275:50 pmSJU - CUN
1 stop23h 50mUnited Airlines
Deal found 10/29$370
This Copa Airlines deal was found by Cheapflights users on 10/29. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:59 amCUN - SJU
1 stop8h 12mCopa Airlines
Sat 11/296:12 pmSJU - CUN
1 stop16h 54mCopa Airlines
Deal found 10/29$376
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/204:34 pmCUN - SJU
2 stops20h 36mDelta
Thu 11/271:02 pmSJU - CUN
1 stop12h 22mDelta
Deal found 10/29$381

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 October 30, 2025.
Use the filters below to find and compare flights from Cancún to San Juan that are best for you.

Fly from

Cancún

Fly to

San Juan

Route

Depart

Return

Price

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Thu 11/20

6:00 am-7:00 pm

1 stop12h 00m

San Juan Luis Munoz Marin Intl

Fri 11/28

1:02 pm-12:24 am

1 stop12h 22m

$298

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Thu 11/20

7:45 am-7:00 pm

1 stop10h 15m

San Juan Luis Munoz Marin Intl

Thu 11/27

1:02 pm-12:24 am

1 stop12h 22m

$298

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Tue 3/10

3:25 pm-10:59 pm

1 stop6h 34m

San Juan Luis Munoz Marin Intl

Wed 3/11

5:01 am-11:46 am

1 stop7h 45m

$324

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Fri 11/14

11:30 am-10:04 pm

1 stop9h 34m

San Juan Luis Munoz Marin Intl

Mon 11/17

5:15 am-1:16 pm

1 stop9h 01m

$344

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Thu 11/13

4:51 pm-9:26 pm

1 stop27h 35m

San Juan Luis Munoz Marin Intl

Thu 11/27

5:50 pm-4:40 pm

1 stop23h 50m

$362

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Sat 11/15

6:30 am-9:26 pm

1 stop13h 56m

San Juan Luis Munoz Marin Intl

Tue 12/2

5:50 pm-12:54 pm

2 stops20h 04m

$362

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Sat 11/15

6:30 am-9:26 pm

1 stop13h 56m

San Juan Luis Munoz Marin Intl

Thu 11/27

5:50 pm-8:18 pm

2 stops27h 28m

$362

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Mon 11/24

5:55 pm-9:00 pm

2 stops26h 05m

San Juan Luis Munoz Marin Intl

Thu 11/27

5:50 pm-8:18 pm

2 stops27h 28m

$362

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Mon 12/29

7:00 am-4:11 pm

1 stop8h 11m

San Juan Luis Munoz Marin Intl

Wed 1/7

6:14 pm-9:56 am

1 stop16h 42m

$365

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Wed 12/17

7:00 am-4:11 pm

1 stop8h 11m

San Juan Luis Munoz Marin Intl

Tue 12/23

6:11 pm-10:49 am

1 stop17h 38m

$365

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 22 results
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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 October 24, 2025.

Booking 28 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 July is currently the most expensive (average of $265). 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.

What is the cheapest time of day to fly from CUN to SJU?

Find hourly flight availability from Cancún to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

It’s optimal to fly from Cancún to San Juan in the evening. By choosing this option you can save up to 46% on the cost of your flight, compared to a flight at noon.

Reviews of airlines servicing San Juan

Get insights into the airlines that provide service to San Juan. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Juan. Reviews last updated October 30, 2025.
Read through reviews of airlines operating flights from Cancún to San Juan, such as Copa Airlines and JetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Copa Airlines
7.6
Good
1,561 reviews

Comfort

7.4

Boarding

7.8

Food

6.9

Overall

7.6

Entertainment

6.8

Crew

8.1

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip
Copa Airlines
7.6
Good
1,561 reviews
Copa Airlines
7.6
Good
1,561 reviews

Comfort

7.4

Boarding

7.8

Food

6.9

Overall

7.6

Entertainment

6.8

Crew

8.1

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip
JetBlue
7.2
Good
2,906 reviews
Copa Airlines
7.6
Good
1,561 reviews

Comfort

7.4

Boarding

7.8

Food

6.9

Overall

7.6

Entertainment

6.8

Crew

8.1

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip

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 2 different airlines.

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

    A quick flight from Cancún to San Juan can take about 6h 34m. Delta provides one of the quickest options available for as low as $324. 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 flying from Cancún to San Juan round-trip?

    JetBlue, at $164, was found to be the cheapest airline from Cancún to San Juan. An alternate airline flying to your destination would be Copa Airlines. Users have found that JetBlue is 46% cheaper than the other options available to this destination.

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

    $159 is the cheapest one-way deal found within the past few days, from Arajet. You may also be able to find cheap deals on Delta and Copa Airlines, with prices starting from $184 and $194, 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 July is currently the most expensive (average of $265). 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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Alternative routes for Cancún to San Juan

See prices for flight routes from nearby airports that may be better suited for you.
Cancún to Luis Munoz Marin Intl flights

Top 2 airlines flying from Cancún to San Juan

Discover the top 2 airlines that operate flights from Cancún to San Juan. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$164Average$354FlexibilityNo cancel feeOn-time62%
Copa AirlinesCheapest$224Average$302FlexibilityNo cancel feeOn-time70%

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