HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Juan

$182+ 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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
CUN — SJU
maj 31 — jun 71
sön 5/31
sön 6/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Cancún to San Juan with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 maj 1, 2026.

This Arajet deal was found by Cheapflights users on 4/30. 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 Arajet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lör 8/2912:35 pm
CUN
-
SJU
1 stop5h 55m
Arajet
tis 9/14:30 pm
SJU
-
CUN
1 stop24h 04m
Arajet
Deal found 4/30$366
This FlightHub deal was found by Cheapflights users on 4/28. 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.
lör 8/2911:02 am
CUN
-
SJU
1 stop16h 53m
Frontier
tis 9/16:41 pm
SJU
-
CUN
2 stops20h 32m
Frontier
Deal found 4/28$373
This Kiwi.com deal was found by Cheapflights users on 4/26. 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.
ons 6/107:01 am
CUN
-
SJU
1 stop8h 13m
Copa Airlines
ons 6/176:17 pm
SJU
-
CUN
1 stop17h 16m
Copa Airlines
Deal found 4/26$383
This Arajet deal was found by Cheapflights users on 4/30. 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 Arajet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
tis 9/1512:35 pm
CUN
-
SJU
1 stop24h 59m
Arajet
sön 9/204:00 pm
SJU
-
CUN
1 stop26h 12m
Arajet
Deal found 4/30$386
This Frontier deal was found by Cheapflights users on 4/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mån 7/2710:25 am
CUN
-
SJU
1 stop12h 04m
Frontier
tis 8/46:45 pm
SJU
-
CUN
1 stop15h 33m
Frontier
Deal found 4/30$390
This Arajet deal was found by Cheapflights users on 4/28. 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 Arajet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mån 11/165:57 pm
CUN
-
SJU
1 stop13h 03m
Arajet
sön 11/294:00 pm
SJU
-
CUN
1 stop25h 57m
Arajet
Deal found 4/28$395
This Frontier deal was found by Cheapflights users on 4/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
fre 6/1210:25 am
CUN
-
SJU
1 stop12h 31m
Frontier
fre 6/197:14 pm
SJU
-
CUN
1 stop15h 47m
Frontier
Deal found 4/28$411
This Arajet deal was found by Cheapflights users on 4/26. 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 Arajet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
tis 4/2812:35 pm
CUN
-
SJU
1 stop24h 59m
Arajet
fre 5/85:50 pm
SJU
-
CUN
1 stop18h 45m
Arajet
Deal found 4/26$413
This Arajet deal was found by Cheapflights users on 4/29. 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 Arajet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
tis 8/1112:35 pm
CUN
-
SJU
1 stop24h 59m
Arajet
sön 8/164:00 pm
SJU
-
CUN
1 stop26h 12m
Arajet
Deal found 4/29$414

Find 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 maj 1, 2026.

Round-trip from

$366
(Arajet)

One-way from

$182
(Kiwi.com)

Popular in

November

Cheapest in

April

Average price

$321
From Cancun to San Juan
Search Deals
One-way flight from Cancun to San Juan
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($41 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

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 maj 1, 2026.
Use the filters below to find and compare flights from Cancún to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

lör 8/29

12:35 pm-7:30 pm

1 stop5h 55m

San Juan Luis Munoz Marin Intl

tis 9/1

4:30 pm-3:34 pm

1 stop24h 04m

$366

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

lör 8/29

11:02 am-4:55 am

1 stop16h 53m

San Juan Luis Munoz Marin Intl

tis 9/1

6:41 pm-2:13 pm

2 stops20h 32m

$397
Quickest round-trip

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

ons 5/27

7:04 am-4:09 pm

1 stop8h 05m

San Juan Luis Munoz Marin Intl

ons 6/3

6:17 pm-10:33 am

1 stop17h 16m

$415

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

fre 6/12

4:54 pm-7:30 pm

1 stop25h 36m

San Juan Luis Munoz Marin Intl

tis 6/16

4:30 pm-3:34 pm

1 stop24h 04m

$442

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

ons 6/10

10:25 am-11:56 pm

1 stop12h 31m

San Juan Luis Munoz Marin Intl

ons 6/17

6:00 am-2:25 pm

2 stops33h 25m

$472

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

tis 9/15

12:11 pm-2:44 pm

1 stop25h 33m

San Juan Luis Munoz Marin Intl

sön 9/20

4:55 pm-12:33 pm

2 stops20h 38m

$498

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

fre 10/2

8:00 am-10:00 pm

1 stop13h 00m

San Juan Luis Munoz Marin Intl

tis 10/6

7:00 am-8:15 pm

2 stops14h 15m

$523

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

lör 6/20

2:49 pm-2:44 pm

2 stops22h 55m

San Juan Luis Munoz Marin Intl

tis 6/30

7:40 am-10:06 am

2 stops27h 26m

$524
Cheapest one-way
Quickest one-way

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

lör 10/17

12:35 pm-7:30 pm

1 stop5h 55m

$199

CancúnSan Juan

CUN - SJU

CUNSJU

Cancun

mån 5/11

5:57 pm-8:05 am

1 stop13h 08m

$210

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 17 resultsSorted by cheapest first
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

What is the cheapest month to book a flight from Cancún to San Juan?

Currently, April is the cheapest month in which you can book a flight from Cancún to San Juan (average of $134). Flying from Cancún to San Juan in February is currently the most expensive (average of $285). 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.

How much does it cost to fly round-trip from Cancún to San Juan?

How often are flights from Cancún to San Juan delayed?

About 35% of weekly flights between Cancún and San Juan have experienced delays in the past year, with the average delay time being 198 minutes.

What is the most punctual flight time for Cancún to San Juan flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Cancún to San Juan flights?

Over the last year, JetBlue have had the lowest number of delays on this route, with just 35% of flights being delayed.

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 0 different airlines.

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

    A quick flight from Cancún to San Juan can take about 5h 55m. Arajet provides one of the quickest options available for as low as $366. Cancún and San Juan are separated by a distance of 1367 mi.

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

    $145 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 Copa Airlines, with prices starting from $146 and $150, 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, April is the cheapest month in which you can book a flight from Cancún to San Juan (average of $134). Flying from Cancún to San Juan in February is currently the most expensive (average of $285). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.