Transfer from Corfu airport to Arillas takes about 1 hour, mainly due to the 'drop offs' along the way at other resorts.
You could hire a car or get a taxi which would take about 1/2 hour.
If you are on a package holiday a coach should be provided.
The one thing that you can't complain about are the Greek salads.
Village salad contains feta cheese, lettuce tomato cucumber etc.
Drizzle with dressing or olive oil. With crusty bread its Yum.
You will see Cucumber or tomato salad on menus, but what you get is a huge plate of JUST sliced tomato or cucumber.
If you're not in to salads just tell them what you want. They are very nice people and will be happy to help.

Message for Leah Ireland.
The coach trip from Corfu airport to Arilas is only an hour or so on the coach, not 4 hours.
It's fine. The coach has air conditioning to a point, but then it is Greece :) Just take some drinks with you, and enjoy the scenery. Olive groves, lemon trees etc.
Arilas is a great place. Beach is sandy and goes out for miles. You can wade in the sea for about 50 yards and still only be up to your knees. Very safe for kids.
Best place to eat is the Marina Hotel. George and his family are lovely people.
Good for walks. Standing at the Marina Hotel, walk to your left and keep going and follow the track. You will eventually come to a bar.
Quick stop for a beer, and then walk back along the road to Arilas.
You can't beat it.
Have a great time !!