2
Aerolíneas
7×
Por semana
$8,500 MXN
Desde (est.)
2.5h
Directo
Cancún (CUN) → San Juan (SJU)
Cancún
Aeropuerto Internacional de Cancún
DISTANCE
2 378 km
San Juan
Aeropuerto Internacional Luis Muñoz Marín
Flight time is an estimate: great-circle distance with ~8% routing adjustment and ~45 min ground operations. Actual block time depends on the carrier, winds, and specific service (check the airline schedule).
🇵🇷
SJU ·
- País
- Puerto Rico
- Capital
- San Juan
- Moneda
- USD
- Visa (paisano)
- B1/B2 required (territorio US)
- Audiencia
- Media — Caribe leisure
When are fares cheapest?
Click a month → live Aviasales fares for the 15th
Compare carriers on this route
🇲🇽Aeromexico
AM
- Frequency
- 7× / week
- Baggage
- 25kg
- Migrant program
- ✓
🇺🇸JetBlue
B6
- Frequency
- 7× / week
- Baggage
- 23kg
- Migrant program
- ✓
Flights Cancún → San Juan: airlines, fares, timing
Cancún to San Juan links the Mexican Caribbean with the capital of Puerto Rico, with around 7 flights a week, one a day. The route carries tourists travelling between two Caribbean destinations and passengers connecting onward to other islands. Block time is about two and a half hours.
Airlines operating this route
Two carriers fly CUN-SJU: Aeroméxico, full-service with baggage included, and JetBlue, with a leaner base-fare product. Both fly direct, so the decision is between a full ticket and a fare to which baggage is added, depending on schedule and price.
MXN fares — what to expect
CUN-SJU fares climb in winter and the Caribbean holiday seasons. For those dates, booking one to two months ahead is sensible. Off-season, three to five weeks usually secures a reasonable fare in MXN.
Get live fares on Aviasales →
About San Juan
San Juan is the capital of Puerto Rico, a coastal city with a walled historic core, Old San Juan, listed as a World Heritage Site. It pairs colonial architecture, beaches and Caribbean urban life. From Cancún it is a tourist destination and a connecting point within the Caribbean.
FAQ
Which airlines fly Cancún to San Juan? Direct CUN-SJU flights are operated by Aeromexico, JetBlue. Compare baggage, fares and schedules in the carrier table above.
How long is the CUN-SJU flight and how often does it run? Block time is about 2.5 hours. The CUN-SJU route runs roughly 7 flights per week across all carriers.
How far ahead should I book CUN-SJU for the best fare? Booking 4-8 weeks ahead for regular dates — and 8-12 weeks for peak season (Holy Week, Christmas, paisano summer) — typically saves 15-30%. See the month-by-month fare heatmap above.
What is the checked baggage allowance on CUN-SJU? It varies by carrier and fare class — full-service carriers on this route usually include 23-25 kg, while low-cost carriers sell it separately. Confirm the current policy on the airline’s site before booking.
Do Mexican passport holders need a visa for Puerto Rico? B1/B2 required (territorio US). Check the latest requirements with the consulate before buying your ticket.
Related articles
Published by FlightsMX Editorial Team. Last verified: May 2026. Fares are reference brackets — verify with the airline before booking.
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