Education Secretary Michael Gove has condemned holiday firms for trying to "fleece parents" by ramping up travel prices when schools are out.
His comments come as a poll for ITV News found a third of adults said they have gone on a family holiday during term time, when costs are significantly lower.
Mr Gove, though, said parents "should not take children out of school during the school term".
Instead, he said varying term dates across schools would help families benefit from off-peak travel prices.
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Five people have been killed and 40 injured after a car and knife attack in London on Wednesday.
A wet, wintry night in places with rain and hill snow slow to move away from southern Scotland and northern England.
The Westminster terror attack dominates the front pages of Thursday's newspapers.