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Cheap Flights from Cancun (CUN) to San Juan (SJUA)

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Find the cheapest month or even day of the year to fly to San Juan

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Flight deals from Cancun to San Juan

Looking for a cheap last-minute deal or the best return flight from Cancun to San Juan? Find the lowest prices on one-way and return tickets right here.
San Juan.$363 per passenger.Departing Mon, 13 Oct, returning Fri, 17 Oct.Return flight with Arajet.Outbound indirect flight with Arajet, departs from Cancun on Mon, 13 Oct, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Arajet, departs from San Juan Luis Munoz Marin on Fri, 17 Oct, arriving in Cancun.Price includes taxes and charges.From $363, select.
San Juan.$388 per passenger.Departing Wed, 13 Aug, returning Tue, 19 Aug.Return flight with Copa.Outbound indirect flight with Copa, departs from Cancun on Wed, 13 Aug, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Copa, departs from San Juan Luis Munoz Marin on Tue, 19 Aug, arriving in Cancun.Price includes taxes and charges.From $388, select.
San Juan.$388 per passenger.Departing Thu, 28 Aug, returning Tue, 2 Sep.Return flight with Copa.Outbound indirect flight with Copa, departs from Cancun on Thu, 28 Aug, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Copa, departs from San Juan Luis Munoz Marin on Tue, 2 Sep, arriving in Cancun.Price includes taxes and charges.From $388, select.
San Juan.$388 per passenger.Departing Tue, 16 Sep, returning Thu, 18 Sep.Return flight with Copa.Outbound indirect flight with Copa, departs from Cancun on Tue, 16 Sep, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Copa, departs from San Juan Luis Munoz Marin on Thu, 18 Sep, arriving in Cancun.Price includes taxes and charges.From $388, select.
San Juan.$388 per passenger.Departing Wed, 9 Jul, returning Wed, 16 Jul.Return flight with Copa.Outbound indirect flight with Copa, departs from Cancun on Wed, 9 Jul, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Copa, departs from San Juan Luis Munoz Marin on Wed, 16 Jul, arriving in Cancun.Price includes taxes and charges.From $388, select.
San Juan.$388 per passenger.Departing Thu, 19 Jun, returning Mon, 23 Jun.Return flight with Copa.Outbound indirect flight with Copa, departs from Cancun on Thu, 19 Jun, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Copa, departs from San Juan Luis Munoz Marin on Mon, 23 Jun, arriving in Cancun.Price includes taxes and charges.From $388, select.
San Juan.$408 per passenger.Departing Wed, 10 Dec, returning Mon, 22 Dec.Return flight with Copa.Outbound indirect flight with Copa, departs from Cancun on Wed, 10 Dec, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Copa, departs from San Juan Luis Munoz Marin on Mon, 22 Dec, arriving in Cancun.Price includes taxes and charges.From $408, select.
San Juan.$408 per passenger.Departing Wed, 12 Nov, returning Wed, 19 Nov.Return flight with Copa.Outbound indirect flight with Copa, departs from Cancun on Wed, 12 Nov, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Copa, departs from San Juan Luis Munoz Marin on Wed, 19 Nov, arriving in Cancun.Price includes taxes and charges.From $408, select.

Find the cheapest month to fly from Cancun to San Juan

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Cancun to San Juan flights are currently cheapest in October.
May
from $800
Jun
from $388
Jul
from $388
Aug
from $388
Sep
from $388
Oct
from $363
Nov
from $408
Dec
from $408
Jan
from $659
Feb
from $409
Mar
from $570
Apr
from $571

Direct flights from Cancun to San Juan

Alternative Cancun to San Juan routes

Looking for the cheapest, fastest or easiest route from Cancun to San Juan? You could fly into the following airports instead.

Cancun to San Juan: Flight information

The things to know before you go.
Cheapest flight found$363
Cheapest month to flyOctober
Average flight time3 hrs, 19 mins
Most popular airlinejetBlue
Average flights per week3

Finding cheap flights from Cancun to San Juan: Frequently asked questions

There are 6 airports in San Juan: San Juan Isla Grande, San Juan Luis Munoz Marin, Roosevelt Roads, Ponce, Vieques, and Culebra.
The best price we found for a return flight from Cancun to San Juan is $363. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 19 minutes is the average flight time from Cancun to San Juan.
jetBlue flies direct from Cancun to San Juan.
As of May 2025, there are 3 flights per week flying from Cancun to San Juan.
The cheapest month to fly from Cancun to San Juan is usually May 2025.
If you're flying from Cancun Airport, the cheapest airport near San Juan is San Juan Luis Munoz Marin – which is 11.3 km away from the centre of San Juan. We've found flights into this airport from $363.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Cancun Airport to San Juan on Monday, 13 October 2025.
Yes – the average flight time is 3 hours and 19 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Juan but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Juan is around 40 days in advance, so don’t leave your flight to the last minute.
In May, the average temperature is usually around 27°C. August is typically the warmest month in San Juan, when it usually averages around 29°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging 23°C. The rainiest month is September.
Currently, Arajet offers the cheapest flight tickets to San Juan.

Travelling from Cancun International Airport (CUN) to San Juan: what you need to know

  • The average length of a direct flight from Cancun International Airport to San Juan is 3 hours 20 minutes.

  • Cancun International Airport is located in Cancun. Following the UTC-4 timezone, San Juan is one hour ahead of Cancun.

  • With two flights a week between the two airports, Cancun International Airport (CUN) to Luis Munoz Marin International Airport (SJU) is the busiest route. JetBlue Airways operates the earliest flight at 13:40. If you're eager to make the most of your day before taking off, the last flight from CUN to SJU is with JetBlue Airways at 15:55.

  • For a stress-free journey, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This will give you enough time to board your CUN to San Juan flight.

  • Delays at check-in and security are likely if you're heading away during high season, so give yourself a bit more breathing room. A good rule of thumb for peak periods? Get there up to four hours early for international flights and at least two hours for domestic departures.

  • You can book a direct Cancun International Airport to San Juan ticket. Begin your trip at CUN and touch down at Luis Munoz Marin International Airport (SJU).

  • Keep an eye out for deals with JetBlue Airways. This airline has direct flights from Cancun International Airport to San Juan.

  • Consider adding a stopover to potentially find a cheaper flight ticket from CUN to San Juan. Just uncheck 'Direct flights only' during your search. Give yourself a breather (and maybe even a better deal) by stopping at one of these popular airports:

    • Miami International Airport (MIA)

    • Orlando International Airport (MCO)

    • Fort Lauderdale-Hollywood International Airport (FLL)

  • Central Cancun to CUN is around 13 kilometres. Depending on traffic, it'll take about 25 minutes to get there if you're driving, catching a cab or ride-sharing.

  • Want an easy start to your journey? Stay near CUN. Whether you have an early flight from Cancun International Airport to San Juan or don't want departure day to feel hectic, these hotels have you covered:

  • When it comes to the on-time performance of Cancun International Airport, 72.87% of flights arrive within the expected time frame.

How to find the cheapest flights from Cancun International Airport (CUN) to San Juan

  • $215 is the cheapest price we've found for a one-way Cancun International Airport to San Juan flight. A round-trip flight ticket right now is $363. Depending on when you book and the availability, these fares can change.

  • Book two months before you travel. Research on pricing trends suggests this is the ideal window for finding cheap flights from CUN to San Juan.

  • Schedule your trip for June. That's the best month for landing the biggest deals on Cancun International Airport to San Juan tickets. If your travel dates are flexible, use the 'Whole month' tool to access the cheapest price across every month.

  • You don't need to check every day to see if fares have dropped when you set up a Price Alert. We'll let you know the moment there's an even bigger deal on cheap flights from CUN to San Juan.

  • Find a cheap flight from Cancun International Airport to San Juan with the help of our filters. Select your ideal departure time, duration and airlines, then sort the results by 'Cheapest' for the best deals.

Airports in San Juan

Luis Munoz Marin International Airport (SJU)

  • Luis Munoz Marin International Airport (SJU) is around 8 kilometres from the centre of San Juan. If you're grabbing a cab or a ride-share, the drive will take roughly 10 minutes.

  • Travelling by public transport will take you around 55 minutes.

  • If you're arriving on a late flight from Cancun International Airport to San Juan, few things beat the convenience of staying close to the terminal. Grab your bags from the carousel and then be showered and sleeping soon after at one of these accommodation options near SJU:

  • Grab a Luis Munoz Marin International Airport rental car and explore San Juan and beyond with your own wheels. Sixt, Ace Rent a Car and U-Save are top providers you can book with here.

  • Reserving your vehicle from Luis Munoz Marin International Airport around two weeks before your flight from CUN to San Juan can help you get the best possible rate.

Fernando Luis Ribas Dominicci Airport (SIG)

  • After your flight from Cancun International Airport to San Juan has hit the runway, you can reach the city centre in about 15 minutes by car. Central San Juan is roughly 8 kilometres from Fernando Luis Ribas Dominicci Airport (SIG).

  • The journey will take about 1 hour on public transport.

  • There are some comfortable places to park your luggage (and yourself) near SIG. Unwind and get cosy after your CUN to San Juan flight at any of these well-located options:

Best time to go to San Juan

  • Before securing your flights from Cancun International Airport to San Juan, consider which time of year works best for you. Peak season in San Juan offers a bustling atmosphere and plenty to do, while the off-season means you'll get better deals on hotels and fewer crowds.

  • Lock in a Cancun International Airport to San Juan flight ticket with a departure in September to experience the city during its warmest month. Expect temperatures to range from 23ºC (73ºF) to 33ºC (91ºF).

  • If you like travelling in cooler conditions, look for a cheap ticket from CUN to San Juan in February when temperatures average between 20ºC (68ºF) and 28ºC (82ºF).

More about San Juan

  • After booking your flight from Cancun International Airport to San Juan, choose a hotel that puts you right where the action is. Make one of these accommodation options your base for exploring San Juan:

  • There are so many things to explore in this city it can be tricky to know where to start. La Garita del morro de san juan bahia, Castillo San Felipe del Morro and Fortaleza Street are top sights which should feature on any well-planned San Juan itinerary.

Explore more of Puerto Rico

  • San Juan has its own special appeal, but there are so many other corners of Puerto Rico waiting to be explored. Around 113 kilometres west of San Juan, a visit to Aguadilla will keep you on the move. Start with leading sights like El Parterre, Aguadilla Ice Skating Arena and Bandera de los Reyes Magos.

  • Around 105 kilometres west of San Juan, Isabela is another essential stop in Puerto Rico. No visit is complete without checking out Amarillo Mango, Urb. Llanos Piscina Park and Noches de Artesania.

Plan the rest of your trip from Cancun to San Juan

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.