A British father faces a holiday nightmare after being barred from boarding a Jet2 flight home from Kefalonia, Greece, due to recently updated border controls. Kyle Harris, a 39-year-old dual national from Wheatley in South Yorkshire, was separated from his family when airport staff enforced strict electronic travel rules. Born in Maryland, United States, Harris moved to Britain as an infant, before celebrating his first birthday, in fact, and has contributed to the UK system for 24 years through taxes, national insurance and even being schooled in the UK.

New rules catch holidaymakers unaware – More to come?

The story does not bode well for the upcoming summer holiday peak, and it is a reminder of what may come starting from a month’s time. Changes implemented in February 2026 mandate that all British citizens enter the country using a British passport. Dual citizens cannot rely solely on foreign documentation anymore. The recently introduced Electronic Travel Authorisation (ETA) system monitors this policy, bringing UK border controls in line with rules seen in Canada, Australia, and the US.

Jet2 staff told the stranded father to apply for a British passport from the British Consulate in Greece or buy a Certificate of Entitlement, which carries a hefty £589 price tag and takes up to eight weeks to arrive. However, because Harris is a British citizen, he remains entirely ineligible to fill out a standard ETA form.

Health fears cause holiday panic

Medical worries have complicated the family’s unexpected extension abroad. Harris suffers from a pituitary tumour and only packed a one-week supply of essential medication for the trip. His wife, Ruth, refused suggestions from airline operators to fly back to South Yorkshire alone with their two young sons, pick up more medication and return to Greece, opting instead to wait out the emergency documentation process at the British consulate.

Jet2 stated its staff followed government rules and consulted the Home Office before making the final decision. Home Office officials maintained that awareness campaigns regarding the Electronic Travel Authorisation protocols have run publicly since 2023. Mixed-nationality families across Britain are tracking the situation closely, or at least, should be as frustration grows over the clarity of public border announcements.

Still, there are worse places one could be stranded.