getting to Venice from airport

"easiest" is probably a water taxi.

If you are going to your hotel, it may be useful to look at the hotel's website and look for the 'how to get here' info. Then you can decide what mode of transport fits your definition of 'easiest' .

There are numerous threads here explaining your options

If you tell us the hotel we can be more specific

Your basic options are
Private or shared water taxi
Alilaguna boat
Land taxi or bus then vaporetto

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totally agree with joe32F, easiest is private water taxi. book ahead of time or walk to water dock from airport and hire from there,
motoscafivenezia.it
aloha

OP, if you can find the information on your hotel's website, as mentioned above, then do so. Otherwise, if you tell us the name of your hotel, we can give you more detailed information.

Water taxi from the airport to closest spot to your hotel will cost approximately €130.

The airport bus to Piazzale Roma is about €10, and from there you could take
a vaporetto to the nearest stop to your hotel would be about €9.50. I found accommodations near the Piazzale Roma so I would just walk without taking the vaporetto. And this is still close enough for me to walk over the big bridge to the train station when it is time to leave Venice.

There is a combined airport bus plus vaporetto ticket for 18 EUR.
Saves you 1.50 EUR. Enjoy your espresso.

How many are you ? I’m going as a group of 4 and we will use the water taxi. About 2-3 times more than the cheapest way, but it goes right to our accomodation and easier for the 2 that have some mobility issues.

Getting to Venice from Marco Polo Airport. [Make sure you have seats on the right/starboard side of the aircraft, for a view of Venice as you fly into Marco Polo.]

A paper map of Venice is the best three euro you will ever spend. Sure, people say that getting lost in Venice is fun. Getting lost, hauling your luggage and not being able to find your hotel is nobody’s idea of fun. Buy that map at the Tabac or bookshop at Marco Polo.

Do take a look at your hotel website – there may be info there. Otherwise,
Water taxi will get you close, maybe to, the door of your hotel. Can carry about ten people, will cost about €140 for the boat. No need to book, taxis are waiting at the Marco Polo dock.

Shared water taxi. Minimum of two people. Book in advance, wait at the desk in the terminal for the others sharing the taxi. Costs about €30 per person. Google “shared water taxi Venice”, use the venicelink dot com web site. Will get you to a vaporetto stop near your hotel.

Alilaguna ferry, as per below.

Bus to Piazale Roma, then walk to your hotel, or take vaporetto to the nearest stop. Buses leave from the outside the terminal, tickets at the machine.

Water transport in Venice.
Gondolas. Only for pleasure, not for transport. 90 euro for half an hour for the boat, more for evenings.
Traghetto – big gondolas, two oarsmen, about ten passengers, for crossing the Grand Canal. Found at Rialto, San Toma and a couple of other places. Cost 2 euro per trip, can save a heap of walking.
Water taxis, which are like a floating limo, costs to match.
Vaporettos - ACTV. Are like a floating bus, operate on a bunch of routes. Get the app Chebateo for routes and schedules. Vaps do not service the airport. Vaps are not water taxis.
Alilaguna ferries, service the airport, run from Marco Polo via a bunch of stops to the main part of Venice, Murano and Lido. They stop at some, but by no means all, vaporetto stops.