There are worries that a new ash cloud from the volcano in Iceland is heading our way.
It means there could be lots more problems for people wanting to fly in or out of Britain.
Some flights have left airports in Scotland and northern England, but it looks like they might have to close again this evening.
It's because that it's thought to be too dangerous to fly through the ash which could damage plane engines.
There are around 150,000 people stranded abroad because their flights have been cancelled.
Many have started long journeys by road and train to try to get back to Britain.
Three Royal Navy ships and a massive cruise liner are being sent to Spain and France to help get people home.