Anyone considering Venice might want to check where Treviso airport is, I have a feeling it's not too close to Venice!
It's a little way to the North West of Venice, so worse option than Marco Polo, I reckon about 1.5 hours extra driving than the Trieste option, but flight times give us much much more time (no early rising on the Thursday for a start
)
As for the Tuesday option to Trieste, it's not the outbound flight they have tanked the price up on but the return flight on the Thursday (Friday is the same and I reckon the weekend would be even more)
This is such a pain
RAC route planner suggests a 2hr 45 minute drive at an average speed of 60 mph on motorways. It is nearly all motorway so should be able to cut down on this.
Not sure about other options (trains etc)