Alilaguna

Taking the water bus to the airport is the most cost effective option in Venice.
We were staying in s. Samuele and took the water bus to rialto where we bought tickets (€ 15 each) for a 45 minute ride to marco polo (venezia) airport.
There is plenty of luggage storage and it is covered so you’re not freezing in the water bus.
You basically arrive at the airport and there are clear signs to the check in counter and area you need to go to for your departure.

Our first visit to Venice, we were only 3 nights, and we really wanted to go to Murano and Burano, in the hotel they recommended the Allaguna Tour, it only cost 18 euros per person and was really excellent, we were taken by boat to Murano, we were an hour there, where we see a demonstration of glass, impressive, then we went to Burano, an amazing magical place, where we also enjoyed a short hour there, and finally went to a different place Torchello was wonderful. The truly great tour though we would have liked to enjoy more of each island next time, but for 18 euros is more than excellent, we paid 200 in Rome by for an awful tour, so there’s nothing to complain about with this one. We recommend it highly.

If you are short on money, long on time and don’t mind being cooped up like sardines for an hour and a half — I suppose this is a way to get to Venice from the airport. I will not repeat.

Pros: Likely the best time+cost value for getting from the airport to Venice.
Cons: Figuring out which line to stand in for which boat for your stop takes some figuring out (the guys at the dock can help). Some ferries seemed to run more often, so you might be standing in the sun for a bit. People get very pushy to get into the waiting area, and then another mad crush when the boat begins to board. And yes, in June, it was a cheek-​to-​cheek affair onboard the boat.
Unfortunately, there’s not much of a better option from the airport. Private water taxi is very expensive; bus or train from the airport takes a longer route and requires at least one transfer and more time.
If you are coming from Rome or Florence — consider taking a train — there are a couple high speed routes directly to/​from the Santa Lucia station (ie: the one in the center of Venice). We left via train and that was MUCH better — just be sure to book 2^nd class or better so you know you have a seat. Perhaps Alilaguna could offer assigned seating, I’d pay a few extra euros for that ;-)…

I found this company through the VCE airport website under their list of transportation options. They have a website in English which is fairly easy to navigate, and their routes are color coded which is very helpful both in reading their maps and making sure you get on the right boat. I purchased tickets through their website, which offered a discount of € 1 off the list price of € 15, and was instructed to print out a voucher to be exchanged for tickets at the dock ticketbooth.
At the Venice airport, there is a water transportation counter which sells tickets for Alilaguna and other boats, but you do not need to go to this. Instead, you must go outside the terminal to the left, where there is a walkway covered by a translucent plastic awning. Continue down this walkway until you reach the docks. At the ticket booth there, exchange your voucher for the tickets, then proceed to the correct dock (we were on the Orange Rialto route. There isn’t a clear queue, and since the incoming ferries also unload there, it can be pretty hectic!
Once on board, you will be crammed like sardines into the seating areas, so be prepared to be friendly with your neighbor. The bigger bags were kept up on the deck of the boat, since there was barely room for all the passengers in the holds. When the boats unload, it’s a bit like watching the clowns climb out of the tiny car. The ride itself was pretty choppy, if you are prone to seasickness, you will probably want to consider another mode of transportation. Some of the windows were open in our area as well, and people did get a bit splashed until they figured out how to close the window. The exit docks are clearly marked with their names, so it is pretty easy to see when you are at your stop. It took about an hour to get from the airport to the Rialto Bridge stop.
I saw a couple of other Alilaguna ferries that looked much more comfortable than the one we were on, as well as some other companies who seemed to have more modern boats where you sit on deck, not in holds below deck, so I would probably check those out next time.

Erin, Jim, Gayle, and I took the Blue Line from Cruise Terminal to Molino Stucky after our the Norwegian Jade portion of of our vacation. I bought the tickets online ahead of time for a 1 Euro discount. That got me a voucher that still required me to wait in line to get the actual ticket. Once we got in line, it was a little unclear which boat to take, and we initially ended up on the wrong one. That got me yelled at by the guy managing the line. I pushed back and I think he actually appreciated the effort.
We had better luck and service on the regular shuttle from the Hilton Molino Stucky (on Giudecca Island) that was operated by Alilaguna between the Hotel dock and either San Marcos or Zattere. Erin and Jim also took one of their boats to the Airport and appreciated this straight route (100 minutes) and a decent 15 Euro one way fare (advance purchase) for each of them.

Super, der Transfer vom AirPort nach Venedig und wieder zurück. 15EUR sind auch europäischer Standart. Es macht schon viel Fun wenn man aus dem Flieger kommt uns ins Boot steigt.

Eine mögliche Alternative zum ACTV Verkehrsverbund. Etwas ausgedünntere Anlegestellen, etwas schnellerer Transfer und die Möglichkeit direkt übers Wasser den Flughafen zu erreichen. Die Preise für die Zeitkarten sind vergleichbar. Und nein, es gibt kein Döner auf den Schiffen.