The airport has 3 terminals or concourses (Terminal 2, Terminal 3, Terminal 4). They are not connected after security: changing means going through security again.
Connecting passengers go through a transfer security screening.
How connections work at CUN
Connection time calculator
Is your layover at CUN long enough? Pick your connection and get an estimate with the times of this airport.
Terminals / concourses: Terminal 2, Terminal 3, Terminal 4
Getting between them: Free landside shuttle looping all terminals around the clock, about every 20 minutes (about 10 minutes between Terminals 3 and 4); Terminals 2 and 3 are about 400 m apart on a footpath
The terminals are not connected airside: changing terminals means leaving the secure area, taking the free shuttle and clearing security again. Terminal 2 mainly handles domestic and Latin American flights, Terminal 3 most North American and European airlines, and Terminal 4 a mix.
All arriving international passengers clear Mexican immigration and customs; there is no exit immigration when departing.
- Mexico has no sterile international transit: every international arrival clears immigration, collects bags and passes customs, even when connecting to another international flight. Allow at least 3 hours.
- Domestic-to-domestic connections in the same terminal can stay airside, with no immigration or bag collection.
- Shuttle waits can reach 15 to 20 minutes: budget 30 to 45 minutes to change terminals, plus security.
Estimate based on typical times at this airport, not your airline's official minimum connection time. Immigration and security lines change with the time of day and season. On a single ticket, the airline must rebook you if you miss the connection; on separate tickets, it does not.
Sources: layoverindex.com · cestee.com.
Times are estimates: always check with your airline.