The island of Ischia is connected to the mainland by many navigation companies that provide frequent links from Naples.

BY AIR:
Naples Capodichino Airport (www.gesac.it) offers connections to all Italian cities and major European destinations with traditional or low-cost airline companies. The nearest Intercontinental Airport is Rome’s Fiumicino (FCO), with the possibility of getting to Naples by air besides by train and by car.
From the airport of Naples you can reach one of the two harbours in Naples connected to Ischia, Molo Beverello or the port of Mergellina, by taxi or by bus. A shuttle bus (Alibus) connects the airport to the main port, Molo Beverello (the stop is at stazione Marittima in the Piazza Municipio). Departures occur every 20 minutes from 06:30 until 23:30. The Alibus ticket costs 3 euros and is operated by A.N.M. bus company (www.anm.it).

BY TRAIN:
If your flight has Rome as final destination, you can reach Naples by train. Trains between Naples and Rome are very frequent. The main railway stations, Napoli Centrale station, Napoli P.za Garibaldi Station (note that these two are very close: a couple on minutes walking) and Napoli Mergellina Station can be easily reached in about 2 hours by intercity train from Rome Termini Station.
Mergellina railway station is very close, about 300 metres, to Mergellina port which is connected to Ischia by hydrofoil.

Napoli Centrale or Napoli Piazza Garibaldi stations are about 4 km far from Beverello wharf, from where ferries, high-speed ships and hydrofoils depart. Beverello can be reached by taxi, bus or tram from the adjacent Piazza Garibaldi:

BY CAR:
Transportation of cars to Ischia can be made by ferry from Beverello harbour or from Pozzuoli port. 
From ROMA (A1) - From BARI (A16) - From SALERNO (A30)

TO POZZUOLI PORT: Follow the signs for the “Tangenziale” (Naples by-pass), then continue in the direction toward Pozzuoli and take the exit Via Campana (exit n.12). Continue followings signs leading to Pozzuoli’s port (only ferries), which is about 4 km far away.

TO BEVERELLO PORT: Do not turn into the “Tangenziale” but continue on the highway following the road markings for the ZONA PORTUALE (HARBOUR AREA) and, after the exit, go on for the harbour, which is about 5 km far from the highway. The Molo Beverello is located close to Maschio Angoino Castle.

SEA CONNECTIONS

The connections between Ischia and the mainland are regular, fast and frequent, thanks to an efficient service of sea transportations ensured by different navigation companies:

PORTS:
Molo Beverello is Naples' biggest port. Caremar and Lauro ferries and hydrofoils allow both passengers, cars, bikes and scooters to travel to Ischia Porto. The trip by ferry takes about 1 hour and 40 minutes, by hydrofoil about 50 minutes. Connections with the Naples central railway station and airport are provided by bus and taxi.

Mergellina port is the second most important port of the city. It only provides a hydrofoil service, which takes only foot passengers on board. The navigation companies  operating from Mergellina are Lauro for Ischia port and Snav for Casamicciola port. Connections with Naples airport and central railway station are ensured by bus and taxi. Mergellina railway station is also very close: a frequent railway metropolitan service connects central and Mergellina railway stations.

Pozzuoli port is located on the north of Naples and is well connected to Naples by highway and city ring road(the railway metropolitan service also connects Pozzuoli railway station with Naples central station). Pozzuoli port ensures transportations by ferries to Ischia main port and Casamicciola port. Its geographic position (closest to Ischia) makes the transportation to the island more convenient (for the costs and the duration) for all people who want to bring a car to the island. In fact the journey by ferry lasts only 60 minutes by the companies Caremar and Medmar.

SNAV	+39 081/7612348
CAREMAR	+39 081/5262711
LINEE LAURO	+39 081/5513352
MEDMAR	+39 081/3334411

For timetables ckick here:
http://www.ischiaonline.it/page.php?pag=TRAS00&sez=MOVIME&langiol=EN

TRANSPORTATION ON THE ISLAND:
The public transport service is rather effective and is formed by taxis, microtaxis and multi-seats vehicles (it is however advisable to agree previously the journey charge) as well as by the public bus transport by the SEPSA company (www.sepsa.it) ,which covers the entire territory.
The public bus service connects quite good the various centres of the island through frequent journeys. The frequency of the main routes is 15-20 minutes during summer, while in winter (November-April) is 20-30 minutes.The bus terminal for SEPSA is located at Ischia Porto in Piazza Trieste e Trento, close to the harbour. The charge for a single journey (valid 90 minutes) amounts to € 1.20, but is also possible to purchase tickets with a wider validity at cheap prices.
These tickets can be bought at very numerous shops (notably newsstands, bars, travel agencies and tobacconist's).

TAXI AND MICROTAXI: