Live checkpoint waits, what's expected next, and when it's usually busiest.
CLE · All terminals · Standard lane · last 12 hours · times in ET
Typical waits by day and hour, last 28 days · CLE · busiest checkpoint each hour — Standard lane · times in ET
Lined up with the chart above — the last 12 hours, then the next 12. The marked line marks now.
Pick your airline and the page follows it.