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$139+ 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 4/6. Fares are subject to change and may not be available on all flights or dates of travel.
CUN — SJU
Apr 6 — Apr 131
Sun 4/6
Sun 4/13
1 adult, Economy
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Cheapflights Tip: The best prices from Cancun to San Juan are usually found in May or April, booked 40 days in advance, depart on a Tuesday or Thursday 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 April 1, 2025.

Round-trip from

$221
(JetBlue)

One-way from

$139
(Expedia)

Popular in

December

Cheapest in

May

Average price

$167
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. 13% potential increase in price ($47 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 1, 2025.

This JetBlue deal was found by Cheapflights users on 4/1. 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.
Sat 5/32:45 pmCUN - SJU
Nonstop3h 24mJetBlue
Sat 5/1011:10 amSJU - CUN
Nonstop3h 30mJetBlue
Deal found 4/1$221
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 5/311:22 amCUN - SJU
1 stop9h 54mCopa Airlines
Sat 5/105:26 amSJU - CUN
1 stop8h 30mCopa Airlines
Deal found 4/1$235
This Priceline deal was found by Cheapflights users on 4/1. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/311:05 amCUN - SJU
1 stop11h 34mSpirit Airlines
Fri 5/91:33 amSJU - CUN
1 stop12h 35mSpirit Airlines
Deal found 4/1$244
This Delta deal was found by Cheapflights users on 4/1. 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 9/189:00 amCUN - SJU
2 stops12h 08mDelta
Mon 9/2912:55 pmSJU - CUN
1 stop8h 07mDelta
Deal found 4/1$250
This Priceline deal was found by Cheapflights users on 3/31. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/303:45 pmCUN - SJU
2 stops19h 55mMultiple Airlines
Sun 5/48:45 pmSJU - CUN
1 stop15h 29mMultiple Airlines
Deal found 3/31$305
This Aeromexico deal was found by Cheapflights users on 3/31. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/197:02 amCUN - SJU
2 stops14h 06mAeromexico
Mon 9/2912:55 pmSJU - CUN
1 stop8h 07mAeromexico
Deal found 3/31$343
This United Airlines deal was found by Cheapflights users on 3/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/195:22 pmCUN - SJU
2 stops20h 22mUnited Airlines
Mon 9/293:56 pmSJU - CUN
2 stops21h 06mUnited Airlines
Deal found 3/31$353
This Priceline deal was found by Cheapflights users on 3/31. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/153:45 pmCUN - SJU
2 stops19h 55mAvianca
Thu 5/222:10 pmSJU - CUN
2 stops22h 35mAvianca
Deal found 3/31$355
This Booking.com deal was found by Cheapflights users on 3/31. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1510:50 amCUN - SJU
1 stop14h 00mFrontier
Wed 5/2112:59 amSJU - CUN
1 stop11h 27mFrontier
Deal found 3/31$412
This WestJet deal was found by Cheapflights users on 3/31. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/277:40 pmCUN - SJU
2 stops25h 28mWestJet
Sat 10/45:19 pmSJU - CUN
2 stops26h 25mWestJet
Deal found 3/31$1,061
This Air Canada deal was found by Cheapflights users on 4/1. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/169:25 pmCUN - SJU
2 stops22h 13mAir Canada
Sat 4/261:05 amSJU - CUN
2 stops20h 25mAir Canada
Deal found 4/1$1,669

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 April 1, 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

Sat 5/3

2:45 pm-7:09 pm

Nonstop3h 24m

San Juan Luis Munoz Marin Intl

Sat 5/10

11:10 am-1:40 pm

Nonstop3h 30m

$221

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Sat 5/3

11:22 am-10:16 pm

1 stop9h 54m

San Juan Luis Munoz Marin Intl

Sat 5/10

5:26 am-12:56 pm

1 stop8h 30m

$235

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Sat 5/3

11:05 am-11:39 pm

1 stop11h 34m

San Juan Luis Munoz Marin Intl

Fri 5/9

1:33 am-1:08 pm

1 stop12h 35m

$244

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Thu 9/18

12:25 pm-10:08 pm

1 stop8h 43m

San Juan Luis Munoz Marin Intl

Mon 9/29

12:55 pm-8:02 pm

1 stop8h 07m

$250

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Wed 4/30

3:45 pm-12:40 pm

2 stops19h 55m

San Juan Luis Munoz Marin Intl

Sun 5/4

8:45 pm-11:14 am

1 stop15h 29m

$305

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Fri 9/19

7:02 am-10:08 pm

2 stops14h 06m

San Juan Luis Munoz Marin Intl

Mon 9/29

12:55 pm-8:02 pm

1 stop8h 07m

$343

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Fri 9/19

5:22 pm-2:44 pm

2 stops20h 22m

San Juan Luis Munoz Marin Intl

Mon 9/29

3:56 pm-12:02 pm

2 stops21h 06m

$353

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Thu 5/15

3:45 pm-12:40 pm

2 stops19h 55m

San Juan Luis Munoz Marin Intl

Thu 5/22

2:10 pm-11:45 am

2 stops22h 35m

$355

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Thu 5/15

10:50 am-1:50 am

1 stop14h 00m

San Juan Luis Munoz Marin Intl

Wed 5/21

12:59 am-11:26 am

1 stop11h 27m

$412

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

Sat 9/27

7:40 pm-10:08 pm

2 stops25h 28m

San Juan Luis Munoz Marin Intl

Sat 10/4

5:19 pm-6:44 pm

2 stops26h 25m

$1,061

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 21 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 March 28, 2025.

Booking 36 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 December is currently the most expensive (average of $336). 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 April 1, 2025.

It’s optimal to fly from Cancún to San Juan at noon. By choosing this option you can save up to 6% on the cost of your flight, compared to a flight in the morning.

Rainfall in San Juan by month

Plan your trip to San Juan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Juan ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit San Juan when rainfall is around 2.2 in.

Temperature in San Juan by month

Plan your trip to San Juan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Juan, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

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 April 1, 2025.
Get a feel of what it's like to fly with Delta, Copa Airlines and Aeromexico from Cancún to San Juan by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,899 reviews

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Maxine,Apr 2024

BWI - ATL

I love the seamless way that delta ensures that my luggage is on board the plane, I get a notification that it's on board. I love boarding process, orderly and on time. Lots of room in Comfort plus and getting upgraded to first class was everything!
Delta
8.0
Very good
7,899 reviews
Delta
8.0
Very good
7,899 reviews

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Maxine,Apr 2024

BWI - ATL

I love the seamless way that delta ensures that my luggage is on board the plane, I get a notification that it's on board. I love boarding process, orderly and on time. Lots of room in Comfort plus and getting upgraded to first class was everything!
Copa Airlines
7.6
Good
1,400 reviews
Delta
8.0
Very good
7,899 reviews

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Maxine,Apr 2024

BWI - ATL

I love the seamless way that delta ensures that my luggage is on board the plane, I get a notification that it's on board. I love boarding process, orderly and on time. Lots of room in Comfort plus and getting upgraded to first class was everything!
Aeromexico
7.5
Good
1,700 reviews
Delta
8.0
Very good
7,899 reviews

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Maxine,Apr 2024

BWI - ATL

I love the seamless way that delta ensures that my luggage is on board the plane, I get a notification that it's on board. I love boarding process, orderly and on time. Lots of room in Comfort plus and getting upgraded to first class was everything!
United Airlines
7.4
Good
8,615 reviews
Delta
8.0
Very good
7,899 reviews

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Maxine,Apr 2024

BWI - ATL

I love the seamless way that delta ensures that my luggage is on board the plane, I get a notification that it's on board. I love boarding process, orderly and on time. Lots of room in Comfort plus and getting upgraded to first class was everything!
JetBlue
7.3
Good
2,924 reviews
Delta
8.0
Very good
7,899 reviews

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Maxine,Apr 2024

BWI - ATL

I love the seamless way that delta ensures that my luggage is on board the plane, I get a notification that it's on board. I love boarding process, orderly and on time. Lots of room in Comfort plus and getting upgraded to first class was everything!

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.

  • What are the cheapest airlines flying from Cancún to San Juan round-trip?

    JetBlue, at $221, was found to be the cheapest airline from Cancún to San Juan.Alternate airlines to your destination round-trip include Copa Airlines and Spirit Airlines. Users have found that JetBlue is 26% cheaper than the other options available to this destination.

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

    $139 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 JetBlue and Copa Airlines, with prices starting from $149 and $150, respectively.

  • What are the cheapest flights from Cancún to San Juan?

    The cheapest flight price from Cancún to San Juan is $195. On average you can expect to pay $250. The most popular route, (Cancun - San Juan Luis Munoz Marin Intl), can usually be booked for $233.

  • 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 December is currently the most expensive (average of $336). 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 April 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$164Average$354FlexibilityNo cancel feeOn-time62%
Copa AirlinesCheapest$224Average$309FlexibilityNo cancel feeOn-time70%

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