LAS TSA wait times at Harry Reid International

This page is currently backed by 4 live LAS checkpoint readings, so the terminal and checkpoint spread matters more than a single airport-wide average.

Harry Reid publishes live security wait times directly on its official airport site.

The official LAS security page names A/B Gates, C Gates, C/D Gates, Terminal 3 Level 2, and Terminal 3 Level Zero Innovation as separate security choices.

Checkpoint hours vary meaningfully, so a closed or limited-hours checkpoint can matter as much as the current wait number.

A/B Gates checkpoint is in Terminal 1 and is listed with long operating hours but not 24-hour coverage.

C Gates checkpoint is specifically labeled for Southwest Airlines traffic in Terminal 1.

C/D Gates checkpoint is listed as open 24 hours and can be important for overnight or very early travel.

Terminal 3 Level 2 serves D and E gates, so passengers using those gates should not default to Terminal 1 security.

The Terminal 3 Level Zero Innovation Checkpoint has limited daytime hours, so verify it before planning around it.

Southwest-heavy traffic often routes through Terminal 1, while many other carriers use Terminal 3.

Check your airline's terminal assignment before heading to the checkpoint, since the LAS page reports checkpoint groups rather than a single airport-wide number.

LAS has five named TSA checkpoint groups, so match your gate letters to the right checkpoint rather than using a single airport-wide line.

The C/D checkpoint is the official 24-hour option, which matters for late-night and very early departures when other LAS checkpoints may be closed.

LAS recommends the standard buffer of two hours for domestic flights and three hours for international flights because checkpoint demand changes sharply by terminal and departure bank.