Originally Posted by
Schutzee
My last name has 12 letters. My reservation had an extra "z" in the spelling. I had no problem checking in but security would not let me pass. I had to go to the ticket counter and get it corrected. And it was a domestic US flight! YMMV. I suggest you have a plan B in case it IS a problem.
This is not really helpful to the OP. The flights in question do not include the US and no security officer outside the US is going to care about a mis-spelling of the name on the boarding pass (BP). Most likely the name in the BP will not even be verified against the passport at security check. Often you just scan the BP to reach the security check and no further ID checks will be made (outside the US). If the persons in question are able to get boarding passes issued at check-in, they will be fine.