San Ysidro or Otay Mesa: how to choose a crossing
The better choice depends on lane type, final destination, nearby traffic, weather, and how flexible your schedule is.

San Ysidro often dominates passenger planning because it is central and familiar. Otay Mesa can still be a better fit when your destination, lane eligibility, or traffic pattern points east.
Start with the current wait and lane type. Then compare the extra driving time to reach the alternate port.
If both ports are rising, alerts are more useful than refreshing. Pick a threshold and let the site tell you when to re-check.
Families, clinic visitors, commuters, and shoppers may make different choices from the same wait number because their parking and destination constraints differ.
