If you know anything about Venice, you know that it is a city built on water, so it's quite fitting that the perfect location for plane spotting is onboard a boat. But not just any boat, we're talking about the water taxis between Venice's Marco Polo Airport and Venice proper. The airport sits on marsh land right on the coast, while the tourist-filled portion is out in the middle of the lagoon.
Going between the airport and the city of Venice therefore means taking either a private boat or the Alilaguna Waterbus right underneath the paths of arriving and departing flights. While you rock on the waves of other speeding water taxis passing by, you can look up at airplanes from carriers like Alitalia and other major carriers. Smaller LCC airlines like Jaunted personal favorite Germanwings sadly won't be found here, but at Treviso Airport.
To reach the Alilaguna boat to the city, you exit the terminal and follow clearly marked signs along a sidewalk with nice pedestrian overhang to protect you in case of rain. These motoscafi, or motorboats are not as luxurious as a private boat, but they cost far less at 6-13 Euro versus the 80-100 Euro of a private launch.
If you're quite serious about plane spotting and not just hoping to catch a glimpse of a few landing planes, then we'd have to go with private boat, since you're able to stand up out on the back of the boat and enjoy the fresh air and grand view. Just be sure to have a good tip in hand for the boat captain if you want him to slow down at all, since the route between Venice and the airport is a notorious area for breaking the speed limit.