Ryanair to shut online operations for upgrade
It said the shutdown from 17:00 UK time on Wednesday to 05:00 on Thursday was needed for a computer systems upgrade.
Ryanair "sincerely apologised" to customers for any inconvenience, and urged anyone needing to check in to do so before the closure.
The Irish carrier says it operates Europe`s largest travel website.
There are about 1.5 million visits to the website every day, with 22,700 boarding passes downloaded each day.
Ryanair`s policy is to charge passengers an extr...