Our flight from Boston to Lisbon went fine; airline food was good; folks around us on the flight were conscientious mask users (not true of a lot of first class passengers, though). The flight was pretty full. It left about 6pm and arrived in Lisbon 12:30am (6:30am, Lisbon time)
When we booked our flight, we did a round trip to Lisbon and did a separate flight to Menorca. That ended up requiring us to go through customs and collect our luggage in Lisbon in order to check in for the flight to Madrid / Menorca. This was a PAINFULLY long line that took just a little less than an hour to get through. We also had about a 6 hour layover. Overall, not too funš„±
