When flying from Ottawa to Lake Como, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Most people fly from Ottawa (YOW) if they book a flight from Ottawa to Lake Como. Ottawa is conveniently located just 10.6 km from Ottawa’s city centre.
These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Ottawa Airport to Milan Malpensa Airport flight would often be abbreviated as a YOW to MXP flight. While you’re still figuring out your travel plans, it’s not a bad idea to learn the names and codes of other airports around these areas: Bergamo Orio Al Serio Airport (BGY), Milan Linate Airport (LIN).