Montréal-Trudeau International Airport opened its first airline lounge in 1975, a carpeted sanctuary intended for a few hundred transatlantic passengers each week. By 2026 the facility handles forty thousand travellers daily, and the original single-lounge model has evolved into a tiered network of brand-specific spaces operated by carriers, financial institutions, and independent hospitality groups. Montreal airport lounge access now spans three terminals and nine discrete facilities, each with its own entry requirements, design language, and service standard. The Air France and KLM lounges occupy adjacent footprints on the international departures concourse, sharing a kitchenette and back-of-house infrastructure but maintaining separate branding and seating zones. The National Bank Lounge, opened in 2019, sits near the domestic security checkpoint and serves a mixed clientele of premium credit-card holders, Star Alliance Gold members, and walk-in guests purchasing three-hour passes. All three facilities open at 04:00 to accommodate the morning wave of European departures and close at 22:00 when the last westbound long-haul rotations push back. Between those hours, capacity fluctuates with load factors—afternoon peak between 14:00 and 18:00 often triggers waitlists, while early-morning and late-evening windows offer immediate entry and quieter seating. The design vocabulary inside reflects each operator's parent brand. The Air France space leans heavily on backlit panels, modular seating in navy upholstery, and a self-serve bar stocked with Ricard, Lillet, and regional Quebec cider. KLM's adjacent zone favours pale wood, Delft-blue accent walls, and a broader selection of Dutch cheeses and stroopwafels. The National Bank Lounge adopts a more neutral palette—grey felt acoustic panels, white Corian counters, individual work pods with USB-C and wireless charging, and a buffet that rotates through poutine, smoked-meat sandwiches, and maple-glazed salmon depending on time of day. None of the three facilities offers à la carte dining; all operate on a self-service model with periodic restocking by catering crews. Access rules vary by lounge. Air France and KLM restrict entry to SkyTeam elite members, premium-cabin ticket holders, and certain co-branded credit-card customers; walk-in purchases are not accepted. The National Bank Lounge, by contrast, sells same-day passes at the reception desk for 43 USD per person, subject to real-time capacity limits. That walk-in model has made it the default choice for travellers without status or alliance affiliation, and demand spikes during holiday weekends and school-break periods when families seek refuge from the main terminal's gate-hold areas. Lounge access tickets purchased in advance through third-party platforms guarantee entry during the stated three-hour window, bypassing the risk of a sold-out counter. The broader appeal of pre-flight lounge facilities at Montréal-Trudeau lies less in the food or alcohol—both adequate but unremarkable—and more in the reduction of ambient noise, the availability of power outlets at every seat, and the separation from the gate-area crowds that intensify during irregular operations. When weather delays cascade through the afternoon departure bank, the lounges become de facto workspaces for business travellers waiting out the backlog, and the three-hour pass effectively functions as insurance against a protracted ground hold.