Airlines services operate to and from Corfu Island with most major European cities. British Airways, Air France, Alitalia, Austrian Airlines, Lufthansa, Swissair, KLT, LOT, Malev and many more Airlines Companies, operate several Flights Charters every day , to and From Corfu Island.
From Athens International Airport there are scheduled flights to Corfu several times a day.

The trip takes an hour and costs around 100 €. There are also flights from Thessaloniki every Monday, Wednesday and Friday

There are ferries every hour to and from Igoumounitsa on the mainland about an hour away.
Most people get to Corfu by coming from Brindisi, Bari, Ancona, Trieste or Venice in Italy.
The trip from Brindisi is about 9 hours. Ancona is about 16 hours and Venice around 30 hours. There are several different ferry lines that compete.
Most of the boats are pretty nice, especially the new ones owned by Strintzis, Superfast and Anek.

These same boats continue on to Patras which takes 10 hours and then return. If you are going by deck then you can buy your ticket when you get to Italy. But if you want a cabin or have a car then it is best to book in advance.You can buy tickets leaving Corfu from any of the agencies on the Island

From Athens to Igoumenitsa by bus, then from Igoumenitsa to Kerkyra or Lefkimi by Ferry-Boat. There are daily departures from Athens Bus terminal (KTEL, 100 Kifissou str., Athens) to Corfu. Tickets are about 30 € and should be bought in advance if you want to be assured of a seat. The distance from Athens to Igoumenitsa is about 500 km and the trip lasts 7-8 hours.
From Igoumenitsa you must take the Ferry-Boat to Corfu Town or Lefkimi. The distance is 18 n.m., and the trip lasts 1h 45min and 1h 30min respectively. Tickets are about 4 € per persons and 30 € for Cars.
There are also daily departures from Salonica Bus terminal to Igoumenitsa. The trip from Salonica to Igoumenitsa lasts about 8 hours. Tickets are about 30€. From Igoumenitsa you must take the Ferry-Boat to Corfu Town or Lefkimi