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$112+ 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 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
CUN — SJU
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
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 28 days in advance, depart on a Tuesday or Thursday and return on a Wednesday

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 junio 12, 2025.

Round-trip from

$236
(JetBlue)

One-way from

$112
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$345
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 ($20 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 June 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 junio 12, 2025.

This JetBlue deal was found by Cheapflights users on 6/9. 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.
mar. 11/410:05 amCUN - SJU
1 stop6h 54mJetBlue
mar. 11/188:40 pmSJU - CUN
1 stop13h 23mJetBlue
Deal found 6/9$236
This FlightHub deal was found by Cheapflights users on 6/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 6/289:35 amCUN - SJU
1 stop13h 24mSpirit Airlines
dom. 6/298:24 pmSJU - CUN
1 stop12h 39mSpirit Airlines
Deal found 6/12$242
This Copa Airlines deal was found by Cheapflights users on 6/10. 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.
vie. 9/127:00 amCUN - SJU
1 stop7h 56mCopa Airlines
vie. 9/192:22 pmSJU - CUN
1 stop8h 36mCopa Airlines
Deal found 6/10$253
This Booking.com deal was found by Cheapflights users on 6/10. 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.
sáb. 11/82:41 pmCUN - SJU
1 stop23h 34mFrontier
sáb. 11/154:20 pmSJU - CUN
1 stop22h 06mFrontier
Deal found 6/10$255
This Delta deal was found by Cheapflights users on 6/10. 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.
sáb. 9/1312:25 pmCUN - SJU
1 stop8h 43mDelta
dom. 9/217:30 amSJU - CUN
2 stops13h 03mDelta
Deal found 6/10$290
This United Airlines deal was found by Cheapflights users on 6/11. 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.
lun. 7/215:35 amCUN - SJU
1 stop22h 55mUnited Airlines
sáb. 8/27:45 amSJU - CUN
2 stops27h 19mUnited Airlines
Deal found 6/11$356
This American Airlines deal was found by Cheapflights users on 6/12. 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.
vie. 9/57:50 amCUN - SJU
2 stops14h 47mAmerican Airlines
jue. 9/116:10 amSJU - CUN
1 stop10h 20mAmerican Airlines
Deal found 6/12$360
This Kiwi.com deal was found by Cheapflights users on 6/12. 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.
vie. 9/52:01 pmCUN - SJU
1 stop7h 21mMultiple Airlines
mié. 9/102:06 amSJU - CUN
1 stop7h 09mMultiple Airlines
Deal found 6/12$373
This Priceline deal was found by Cheapflights users on 6/11. 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.
vie. 8/12:10 pmCUN - SJU
3 stops20h 45mAvianca
jue. 8/72:10 pmSJU - CUN
2 stops22h 35mAvianca
Deal found 6/11$406
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 7/2011:55 amCUN - SJU
2 stops11h 15mSouthwest
sáb. 8/25:30 amSJU - CUN
1 stop11h 35mSouthwest
Deal found 6/11$412

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 junio 12, 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

mar. 11/4

10:05 am-5:59 pm

1 stop6h 54m

San Juan Luis Munoz Marin Intl

mar. 11/18

8:40 pm-9:03 am

1 stop13h 23m

$236

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

sáb. 6/28

9:35 am-11:59 pm

1 stop13h 24m

San Juan Luis Munoz Marin Intl

dom. 6/29

8:24 pm-8:03 am

1 stop12h 39m

$242

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

vie. 9/12

7:00 am-3:56 pm

1 stop7h 56m

San Juan Luis Munoz Marin Intl

vie. 9/19

2:22 pm-9:58 pm

1 stop8h 36m

$253

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

sáb. 11/8

2:41 pm-3:15 pm

1 stop23h 34m

San Juan Luis Munoz Marin Intl

sáb. 11/15

4:20 pm-1:26 pm

1 stop22h 06m

$255

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

sáb. 9/13

12:25 pm-10:08 pm

1 stop8h 43m

San Juan Luis Munoz Marin Intl

dom. 9/21

7:30 am-7:33 pm

2 stops13h 03m

$290

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

lun. 7/21

5:35 am-5:30 am

1 stop22h 55m

San Juan Luis Munoz Marin Intl

sáb. 8/2

7:45 am-10:04 am

2 stops27h 19m

$356

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

vie. 9/5

7:50 am-11:37 pm

2 stops14h 47m

San Juan Luis Munoz Marin Intl

jue. 9/11

6:10 am-3:30 pm

1 stop10h 20m

$360

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

vie. 9/5

2:01 pm-10:22 pm

1 stop7h 21m

San Juan Luis Munoz Marin Intl

mié. 9/10

2:06 am-8:15 am

1 stop7h 09m

$373

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

vie. 8/1

2:10 pm-11:55 am

3 stops20h 45m

San Juan Luis Munoz Marin Intl

jue. 8/7

2:10 pm-11:45 am

2 stops22h 35m

$406

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

dom. 7/20

11:55 am-12:10 am

2 stops11h 15m

San Juan Luis Munoz Marin Intl

sáb. 8/2

5:30 am-4:05 pm

1 stop11h 35m

$412

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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 June 9, 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 junio 12, 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 junio 12, 2025.
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Entertainment

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,287 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Entertainment

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,950 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Entertainment

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Copa Airlines
7.5
Good
1,451 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Entertainment

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Aeromexico
7.5
Good
1,706 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Entertainment

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,790 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Entertainment

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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 $236, was found to be the cheapest airline from Cancún to San Juan.Alternate airlines to your destination round-trip include Spirit Airlines and Copa Airlines. Users have found that JetBlue is 24% cheaper than the other options available to this destination.

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

    $112 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 JetBlue, with prices starting from $142 and $156, respectively.

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

    The cheapest flight price from Cancún to San Juan is $223. On average you can expect to pay $281. The most popular route, (Cancun - San Juan Luis Munoz Marin Intl), can usually be booked for $250.

  • 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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$164Average$351FlexibilityNo cancel feeOn-time62%
Copa AirlinesCheapest$224Average$302FlexibilityNo cancel feeOn-time70%

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