I am just reading up on the airport, and how overwhelmed it is with passengers.
For a 7:35am flight to Glasgow what time do you suggest arriving at the airport? 4:35am would be excessive here in Montreal, but reading of the chaos at KEF it might be essential despite the lack of seating etc.
Hoping that late October is somewhat less chaotic than the summer, but not holding my breath as reviews from last week are pretty awful. Hopefully the airport expansion does the trick.