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$125+ 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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
CUN — SJU
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
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 Tuesday or Thursday 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 julio 31, 2025.

Round-trip from

$211
(JetBlue)

One-way from

$125
(Orbitz)

Popular in

December

Cheapest in

March

Average price

$363
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. 7% potential increase in price ($24 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in July 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 julio 31, 2025.

This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/162:45 pmCUN - SJU
Nonstop3h 19mJetBlue
sáb. 8/2311:25 amSJU - CUN
Nonstop3h 15mJetBlue
Deal found 7/31$211
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/39:58 amCUN - SJU
1 stop29h 09mFrontier
mar. 8/512:59 amSJU - CUN
1 stop11h 19mFrontier
Deal found 7/31$329
This Copa Airlines 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/1611:20 amCUN - SJU
1 stop9h 59mCopa Airlines
sáb. 8/235:32 amSJU - CUN
1 stop8h 27mCopa Airlines
Deal found 7/31$332
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/296:04 amCUN - SJU
1 stop11h 51mDelta
mié. 1/77:00 amSJU - CUN
2 stops15h 10mDelta
Deal found 7/31$347
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/169:14 amCUN - SJU
1 stop13h 43mSpirit Airlines
dom. 9/141:59 amSJU - CUN
1 stop7h 12mSpirit Airlines
Deal found 7/30$354
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/612:20 pmCUN - SJU
1 stop25h 24mUnited Airlines
mar. 9/163:56 pmSJU - CUN
2 stops21h 37mUnited Airlines
Deal found 7/31$407
This OneTravel 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 OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/1412:05 pmCUN - SJU
2 stops11h 51mMultiple Airlines
sáb. 8/1612:59 amSJU - CUN
1 stop11h 19mMultiple Airlines
Deal found 7/31$426
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.
sáb. 8/1610:45 amCUN - SJU
1 stop12h 14mAmerican Airlines
lun. 9/157:05 pmSJU - CUN
2 stops16h 51mAmerican Airlines
Deal found 7/30$531
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/11:05 pmCUN - SJU
1 stop10h 50mSouthwest
dom. 8/39:05 pmSJU - CUN
2 stops15h 35mSouthwest
Deal found 7/31$575

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 julio 31, 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

sáb. 8/16

2:45 pm-7:04 pm

Nonstop3h 19m

San Juan Luis Munoz Marin Intl

sáb. 8/23

11:25 am-1:40 pm

Nonstop3h 15m

$211

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

sáb. 8/16

11:20 am-10:19 pm

1 stop9h 59m

San Juan Luis Munoz Marin Intl

sáb. 8/23

5:32 am-12:59 pm

1 stop8h 27m

$332

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

jue. 8/14

12:35 pm-11:59 pm

1 stop10h 24m

San Juan Luis Munoz Marin Intl

sáb. 8/16

12:59 am-11:18 am

1 stop11h 19m

$340

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

lun. 12/29

6:04 am-6:55 pm

1 stop11h 51m

San Juan Luis Munoz Marin Intl

mié. 1/7

7:00 am-9:10 pm

2 stops15h 10m

$347

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

sáb. 8/16

9:14 am-11:57 pm

1 stop13h 43m

San Juan Luis Munoz Marin Intl

dom. 9/14

1:59 am-8:11 am

1 stop7h 12m

$354

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

sáb. 9/6

12:20 pm-2:44 pm

1 stop25h 24m

San Juan Luis Munoz Marin Intl

mar. 9/16

3:56 pm-12:33 pm

2 stops21h 37m

$407

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

jue. 8/14

12:05 pm-12:56 am

2 stops11h 51m

San Juan Luis Munoz Marin Intl

sáb. 8/16

12:59 am-11:18 am

1 stop11h 19m

$426

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

sáb. 8/16

10:45 am-11:59 pm

1 stop12h 14m

San Juan Luis Munoz Marin Intl

lun. 9/15

7:05 pm-10:56 am

2 stops16h 51m

$531

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

lun. 12/1

12:55 pm-1:40 am

2 stops11h 45m

San Juan Luis Munoz Marin Intl

lun. 12/8

5:45 am-8:25 pm

2 stops15h 40m

$661

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

lun. 9/29

5:45 pm-8:25 am

1 stop13h 40m

$125

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 18 results
1
2

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 July 25, 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 julio 31, 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.

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 julio 31, 2025.
Read through reviews of airlines operating flights from Cancún to San Juan, such as Southwest, Delta, and Copa Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Crew

8.6

Overall

8.0

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
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Crew

8.6

Overall

8.0

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
7,981 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Crew

8.6

Overall

8.0

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
1,493 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Crew

8.6

Overall

8.0

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
8,900 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Crew

8.6

Overall

8.0

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.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Crew

8.6

Overall

8.0

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 $211, was found to be the cheapest airline from Cancún to San Juan.Alternate airlines to your destination round-trip include Copa Airlines and Frontier. Users have found that JetBlue is 32% cheaper than the other options available to this destination.

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

    $125 is the cheapest one-way deal found within the past few days, from Arajet. You may also be able to find cheap deals on JetBlue and Frontier, with prices starting from $150 and $166, respectively.

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

    The cheapest flight price from Cancún to San Juan is $228. On average you can expect to pay $287. The most popular route, (Cancun - San Juan Luis Munoz Marin Intl), can usually be booked for $355.

  • 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

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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 julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$164Average$351FlexibilityNo cancel feeOn-time62%
Copa AirlinesCheapest$243Average$302FlexibilityNo cancel feeOn-time70%

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