British travellers are being warned to check their passports before flying to several European destinations, including France, Greece, Italy and Spain. The warning focuses on passport validity requirements that can affect entry into other countries. According to the reporting, data indicates that more than one million UK passports may not meet the entry conditions needed for travel. Travellers are advised to complete two essential checks before departure: confirming that their passport is valid for the required period and ensuring it meets the specific entry rules of the destination country. The guidance is presented as a way to prevent disruption at borders and avoid the possibility of being denied entry due to passport issues. While one source frames the warning broadly for UK travellers and another highlights Scots travelling abroad, both point to the same set of destinations and the same core message: travellers should verify their passport status and validity well in advance of their trip to avoid problems when entering these countries for summer travel.