The price of going away during the six-week school holidays can be eye-watering.
This is because the high demand from parents and those working in education for those dates means travel firms can hike prices up and still sell out.
So spreading some of these weeks out across the year could provide more opportunities to go away and lessen demand at any one time, thus bringing down prices.
However, if the summer holiday was only four weeks long, it could also have the opposite effect of squashing the demand into a smaller time frame and pushing up prices further.
One way to mitigate this would be for different regions to stagger their school summer holidays, suggests Which? Travel editor, Rory Boland.
Holiday prices would come down "only if travel firms can restrain themselves from massively inflating prices", he says.
Any price drops could also come at the expense of those who currently avoid going away during the school summer holidays, as they might find there are fewer bargains to be had.
There could also be an impact on traffic jams, airport queues and overcrowded trains if everyone isn't making a dash for it at the same time.
If there was a shorter summer break, employers would have to navigate a higher number of holiday requests over a smaller period of time.
For instance, three people wanting to take two weeks off each over summer could be staggered over six weeks, but over four weeks might prove more tricky.
If leave isn't possible, bosses should "carefully consider" flexible working to help balance workload with childcare, says David D'Souza, director of profession at the Chartered Institute of Personnel and Development (CIPD).