Italy and Portugal are likely to be latest countries to ditch the EU’s controversial border checks following a chaotic rollout of the new system across the continent.
It comes after Greece scrapped the Entry and Exit System (EES) for British tourists to avoid disruption at the height of the summer holidays.
The rules involve fingerprint and facial scans for travellers entering from non-EU countries, including the UK.
The new biometric security measures, which recently became fully operational, have resulted in airport delays of up to four hours.
The EES is intended to replace manual passport stamping and better monitor the 90-day visa-free limit - but has resulted in havoc at some of Europe's busiest airports.
Now, Portugal and Italy could follow Greece’s lead to avoid delays at their airports in the coming months.
Tourists may be able to enter both countries with only a passport stamp ahead of the May half-term holiday.
Spain, France and Croatia could follow as issues with the border system persist.
Earlier this month, more than 120 EasyJet passengers were left stranded at Milan Linate Airport after lengthy delays caused them to miss their flight to Manchester.
Only 34 of the 156 passengers booked onto the flight made it on board, with EasyJet later issuing an apology.