Treviso

Treviso is a small city near to Venice where you can easily find the low cost airport of venice.From there to there you have a lot of different flights from some known airlines like Ryanair and Wizzair.

 This city is also a good city to visit but not so touristic as venice. I should tell you that in my opinion it is a good city to run way from venice and to make a pic-nic.

In order to arrive there you can easily get the train ticket that will cost around 3€ in Trenitalia, otherwise you can always pick a bus from venice(piazzale Roma) to treviso and
the cost could be more or less the same.