Transport spokesperson Sarah Olney MP called for the government to deploy armed forces logistics specialists to work with the travel sector to alleviate pressures.
The plan would include running airport command centres and putting systems in place to ease road traffic and keep ports unblocked.
Earlier this week the Lib Dems called for a meeting of the Cobra ministerial committee to tackle the country’s “travel chaos”, and accused transport secretary Grant Shapps of being “asleep at the wheel” in handling the problem.