
San Ysidro
Plan with buffer. Recent range: limited recent history. Updated 12:49 AM PDT.
Open crossing

Use current waits, recent patterns, weather, and alerts together. Patterns help; conditions now still decide the trip.
Use recent patterns as a quick check, then confirm the current wait before leaving.

Plan with buffer. Recent range: limited recent history. Updated 12:49 AM PDT.
Open crossing
Plan with buffer. Recent range: limited recent history. Updated 12:49 AM PDT.
Open crossing
Plan with buffer. Recent range: limited recent history. Updated 12:49 AM PDT.
Open crossing
Plan with buffer. Recent range: limited recent history. Updated 12:49 AM PDT.
Open crossing
Plan with buffer. Recent range: limited recent history. Updated 12:49 AM PDT.
Open crossing
Plan with buffer. Recent range: limited recent history. Updated 12:49 AM PDT.
Open crossingA recent wait with visible lane type is stronger than a generic best-hour rule. If the update looks old, carry more buffer.
A shorter line can lose if the alternate crossing adds too much driving, parking, or bridge approach time.
If your schedule is flexible, set a threshold instead of refreshing while packing, fueling, or choosing a route.
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