Eurostar has warned passengers that its services will be affected from 29 September to 1 October due to essential engineering works being carried out on the tunnel.
Some trains have been cancelled or have delayed arrival times, whilst others have been added to compensate for those being disrupted.
Though Eurostar are trying to contact all those affected, passengers have been advised to check the amended timetable on the Eurostar website.
A spokeswoman for the company told the press that Eurostar have allocated alternatives to those booked on cancelled services, but will attempt to compensate passengers if they miss their train.
"We will do everything we can to re-allocate them on the next available service and our compensation policies will apply," she said.
Passengers have been advised to check in for their train at least half an hour before departure time, in order to be sure that delays will not affect them.
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The recent changes to procedures will also see travellers being able to check a carry-on bag in at the boarding gate at no extra cost.
Nearly one in six people experience levels of anxiety when travelling onboard a plane, some even refusing to travel by plane altogether.