Iberworld only flies in High Season.

www.jetairfly.com is the cheapest i have come across. Aeroflot has incredible prices at times, but since they are not IATA you may want to call them to get a fare.
Airtours/MyTravel (www.airtours.co.uk) fly charter flights to Varadero, Cayo Coco and Holguin - After flying with them in September, I can say that they are reliable etc, and aslong as you have no regard for comfort, and are looking for a cheap flight from the uk, I would recommend it - I paid 220 GBP incl taxes and everything for London-Varadero in September

For details of all scheduled flights to Cuba you can check out the following link:
Airlines flying to Cuba

#14
What a super link! Thank you for posting it. If the new hallway monitor is luking somewhere he should snap it up for the FAQ.

#14
Please forgive Jacques. He appears to be in one of his funny moods. I'm sure it will pass.

#18
Your keen eye for detail is appreciated by all. I'm sure. No doubt there are numerous other errors. This is a good start point when people are looking for potential carriers. I'm sure that when they have found one that serves their needs, they will find the correct schedules, prices, etc.