Transit BarometerNorth American travel & border data

CHECKPOINT STRUCTURE VERIFIED JULY 27, 2026 · ALL 7 AIRPORTS

Montréal (YUL) security waits — the measured source.

MEASURED LIVE FEED — CATSA OFFICIAL

Montréal–Trudeau International Airport publishes 2 CATSA-measured checkpoint readings, refreshed about every 2 minutes from boarding-pass scans. Trudeau publishes two combined readings — one for domestic/international, one for the US-preclearance transborder line.

OPEN YUL'S OFFICIAL LIVE WAITS ↗

Domestic/InternationalTransborder

How early should you arrive at YUL?

The standard: 2 hours before domestic, 3 hours before international or US-bound flights. Watch the transborder line specifically — US preclearance adds American customs to your journey before you even board.

Why Canadian airport security data beats America's. CATSA — the Canadian Air Transport Security Authority — measures its wait times: boarding passes are scanned when you join the queue and again at screening, refreshed about every 2 minutes. The US TSA publishes no live feed at all. We verified every Canadian airport's published checkpoints by hand (July 27, 2026) and link you straight to the official source — and our own pattern archive has been recording readings every 5 minutes since July 26, 2026.
📈 Pattern archive for YUL: recording since July 26, 2026, every 5 minutes. Typical-wait-by-hour charts appear here as the record matures.

📊 Cite this page — free with attribution

Source: Transit Barometer — Montréal–Trudeau International Airport security checkpoint structure (2 CATSA-measured readings), verified July 27, 2026. https://transitbarometer.com/security-waits/yul/
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