Jet2 has issued an urgent advisory to passengers, highlighting that certain travellers may require a specific 'letter of authorisation' document when flying to particular destinations. The airline warns that failure to present this mandatory paperwork could result in passengers being turned away at border control, disrupting holiday plans significantly.
Critical Documentation Requirements for Young Travellers
The airline's updated guidance specifically addresses passengers aged 14 and over who are travelling independently. While Jet2 permits passengers from age 14 to travel alone, the carrier emphasises that "some countries impose special conditions for minors who are travelling either alone, or without their legal parent/guardian." This policy variation between airline rules and national entry requirements creates potential pitfalls for unprepared travellers.
Jet2 clarifies its position: "Jet2.com allows passengers aged 14 or over to travel alone. Any passenger under the age of 14 can only travel if accompanied by a passenger aged 16 years or over who will take full responsibility for them. We are unable to offer an 'Unaccompanied Minors' service." This statement underscores the airline's operational parameters while highlighting the additional responsibilities falling to passengers regarding destination-specific regulations.
Portugal's Stringent Entry Requirements for Minors
Portugal emerges as a primary example where these documentation requirements apply rigorously. According to official GOV.UK guidance referenced by Jet2, "children aged 17 and under travelling to Portugal alone, or with a person who is not their parent or legal guardian, must carry a letter of authorisation to travel from their parent or guardian, together with a copy of their parent or guardian's passport."
The consequences of non-compliance are severe. The guidance explicitly states: "If you bring a child to Portugal without a letter of authorisation, your entry will be delayed and may be refused." Furthermore, "teenagers aged 17 and under who travel alone, or with friends of the same age, and who are not being met on arrival by a parent or guardian, may be refused entry if they do not have a letter of authorisation."
Jet2 recommends proactive measures: "To avoid delays at the border, we recommend a copy of the signatories' (parent or legal guardian) photo identification is carried with the young person for verification purposes, by the authorities at the Portuguese border."
Essential Components of the Authorisation Letter
The mandatory letter must contain comprehensive information to satisfy border authorities. Required elements include:
- The child's full name, date of birth and passport number
- The child's specific dates of arrival and departure
- The complete name of the adult in Portugal responsible for them during their stay
- The full names, dates of birth, passport numbers and contact details of the parent or guardian
- The parent or guardian's signature and precise date of issue
- A clear copy of the parent or guardian's passport
Departure Requirements from Portugal
The documentation requirements extend beyond entry procedures. For non-resident children aged 17 or under leaving Portugal without a parent or legal guardian, or when accompanied by someone else, an authorisation letter remains mandatory unless they are travelling directly back to their country of residence.
Similarly, children aged 17 or under who reside in Portugal must possess a duly certified authorisation letter when travelling without a parent or legal guardian. Additional details regarding certification requirements can be found in the official Living in Portugal guide.
Additional Travel Preparation Advice from Jet2
Alongside the crucial documentation warnings, Jet2 continues to provide practical travel preparation tips through its 'Top Tips before Travel' resource. The airline emphasises proper luggage management as essential for smooth journeys.
One particularly valuable recommendation involves luggage labelling. Jet2 advises passengers: "Label each piece of baggage with your name, flight number, and phone number." This simple measure can significantly expedite baggage recovery processes should luggage be misplaced during travel.
The airline's comprehensive guidance reflects increasing complexity in international travel regulations, particularly concerning minor passengers. With family travel arrangements becoming more diverse and minors increasingly travelling independently for educational, sporting, or family visitation purposes, understanding these documentation requirements has never been more critical for avoiding disruptive border incidents.



