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$124+ 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 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
CUN — SJU
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from Cancun to San Juan are usually found in March or May, booked 29 days in advance, depart on a Wednesday or Tuesday and return on a Monday

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 September 15, 2025.

Round-trip from

$286
(Travelocity)

One-way from

$124
(Orbitz)

Popular in

December

Cheapest in

March

Average price

$321
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. 6% potential increase in price ($22 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 15, 2025.

This Travelocity deal was found by Cheapflights users on 9/13. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1811:55 amCUN - SJU
1 stop6h 40mMultiple Airlines
Sat 10/255:18 pmSJU - CUN
1 stop16h 29mMultiple Airlines
Deal found 9/13$286
This JetBlue deal was found by Cheapflights users on 9/13. 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.
Tue 10/281:45 pmCUN - SJU
1 stop6h 19mJetBlue
Tue 11/46:01 amSJU - CUN
1 stop7h 54mJetBlue
Deal found 9/13$303
This JetBlue deal was found by Cheapflights users on 9/14. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1111:30 amCUN - SJU
1 stop7h 33mJetBlue
Sun 12/146:01 amSJU - CUN
1 stop7h 51mJetBlue
Deal found 9/14$326
This Copa Airlines deal was found by Cheapflights users on 9/13. 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 10/237:00 amCUN - SJU
1 stop14h 21mCopa Airlines
Mon 10/276:16 pmSJU - CUN
1 stop17h 13mCopa Airlines
Deal found 9/13$333
This United Airlines deal was found by Cheapflights users on 9/13. 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 10/2811:40 amCUN - SJU
1 stop8h 42mUnited Airlines
Tue 11/45:50 pmSJU - CUN
2 stops20h 44mUnited Airlines
Deal found 9/13$358
This JetBlue deal was found by Cheapflights users on 9/14. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/11:00 pmCUN - SJU
1 stop6h 20mJetBlue
Mon 10/63:03 amSJU - CUN
1 stop11h 12mJetBlue
Deal found 9/14$371
This Mytrip deal was found by Cheapflights users on 9/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1812:11 pmCUN - SJU
2 stops25h 48mSpirit Airlines
Sat 10/253:19 pmSJU - CUN
3 stops22h 25mSpirit Airlines
Deal found 9/13$416
This Copa Airlines deal was found by Cheapflights users on 9/15. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/301:59 pmCUN - SJU
1 stop7h 26mCopa Airlines
Sun 1/46:14 pmSJU - CUN
1 stop17h 30mCopa Airlines
Deal found 9/15$421

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 September 15, 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

Fri 2/6

8:59 am-6:55 pm

1 stop8h 56m

San Juan Luis Munoz Marin Intl

Sat 2/14

1:02 pm-11:58 pm

1 stop11h 56m

$297

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Fri 2/6

2:10 pm-9:52 pm

1 stop6h 42m

San Juan Luis Munoz Marin Intl

Sun 2/15

6:00 am-3:29 pm

1 stop10h 29m

$326

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Thu 12/11

11:30 am-8:03 pm

1 stop7h 33m

San Juan Luis Munoz Marin Intl

Sun 12/14

6:01 am-12:52 pm

1 stop7h 51m

$326

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Sat 2/14

6:00 am-6:55 pm

1 stop11h 55m

San Juan Luis Munoz Marin Intl

Wed 2/18

7:30 am-8:36 pm

2 stops14h 06m

$331

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Thu 10/23

11:20 am-10:21 pm

1 stop10h 01m

San Juan Luis Munoz Marin Intl

Mon 10/27

6:16 pm-10:42 am

1 stop17h 26m

$333

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Wed 10/1

7:00 am-10:21 pm

1 stop14h 21m

San Juan Luis Munoz Marin Intl

Tue 10/7

5:31 am-9:58 pm

1 stop17h 27m

$333

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Tue 10/28

11:40 am-9:22 pm

1 stop8h 42m

San Juan Luis Munoz Marin Intl

Tue 11/4

5:50 pm-1:34 pm

2 stops20h 44m

$358

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Sat 11/1

4:55 pm-3:40 pm

2 stops21h 45m

San Juan Luis Munoz Marin Intl

Sat 11/8

8:30 am-12:54 pm

2 stops29h 24m

$358

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Sat 10/18

11:55 am-7:35 pm

1 stop6h 40m

San Juan Luis Munoz Marin Intl

Fri 10/24

2:49 am-8:04 am

1 stop6h 15m

$369

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Sat 10/25

11:55 am-7:35 pm

1 stop6h 40m

$124

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 17 results
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 September 12, 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, September is the cheapest month in which you can book a flight from Cancún to San Juan (average of $254). Flying from Cancún to San Juan in June is currently the most expensive (average of $339). 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 September 15, 2025.

It’s optimal to fly from Cancún to San Juan at noon. By choosing this option you can save up to 1% on the cost of your flight, compared to a flight in the morning.

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 September 15, 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
1,531 reviews

Entertainment

6.8

Boarding

7.8

Food

6.8

Crew

8.1

Overall

7.6

Comfort

7.4

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
1,531 reviews
Copa Airlines
7.6
Good
1,531 reviews

Entertainment

6.8

Boarding

7.8

Food

6.8

Crew

8.1

Overall

7.6

Comfort

7.4

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
2,912 reviews
Copa Airlines
7.6
Good
1,531 reviews

Entertainment

6.8

Boarding

7.8

Food

6.8

Crew

8.1

Overall

7.6

Comfort

7.4

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 42m. Delta provides one of the quickest options available for as low as $326. 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.

  • 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, September is the cheapest month in which you can book a flight from Cancún to San Juan (average of $254). Flying from Cancún to San Juan in June is currently the most expensive (average of $339). 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$164Average$353FlexibilityNo cancel feeOn-time62%
Copa AirlinesCheapest$224Average$302FlexibilityNo cancel feeOn-time70%

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