Does anyone know what lounge Copa is using in Montreal? My experience in YUL is that the International MLL only opens 120 min before the first International AC flight which appears to be sometime in the afternoon. We, unfortunately, found this out the hard way after we asked at the Domestic MLL and were told it was open only to enter the International area and find it wasn't....and there's no way back to Domestic. At that time it wasn't that big of a deal because there was the Amex Lounge which I had access to. Now that lounge is Mastercard though...and I don't have access to that via a card. So do they use the Mastercard lounge or, possibly, the Air France (?) lounge? We'd be connecting so if anyone knows if either of those lounges is used, do they require a sticker on the boarding pass? If so does anyone know how to get one without leaving the secure area?