| Popular Airlines | Must travel with an adult or as an UM | | UM Service available | | Web Address |
| AEGEAN | Under 12 | | Yes | | https://en.aegeanair.com/travel-information/special-assistance/children-travelling-alone/ |
| AEROFLOT | Under 12 | | Yes | | http://www.aeroflot.ru/ru-en/information/preparation/special_transportation/kids |
| AIR FRANCE | Under 15 | | Yes | | http://www.airfrance.co.uk/GB/en/common/guidevoyageur/assistance/enfant_seul_um.htm |
| AIR IBERIA | Under 12 | | Yes | | http://www.iberia.com/gb/fly-with-iberia/minors/ |
| AIR MALTA | Under 12 Under 14 departing to/from Italy | | Yes | | https://www.airmalta.com/information/customer-support/young-travellers/unaccompanied-minors |
| ALITALIA | Under 15 | | Yes | | https://www.alitalia.com/en_gb/fly-alitalia/organize-your-trip/children.html |
| AUSTRIAN AIR | Under 12 | | Yes | | https://www.seatmaestro.com/airlines-seating-maps/austrian-airlines/minors/ |
| BRITISH AIRWAYS | Under 14* | | No | | http://www.britishairways.com/en-gb/information/travel-assistance/children-travelling-alone |
| * | All young flyers aged under 16 and travelling alone must complete a parental/guardian consent form before travel | | | | Parental Consent Form British Airways |
| EASYJET | Under 16 | | No | | https://www.easyjet.com/en/help/preparing-to-fly/flying-with-children |
| EMIRATES | Under 12 | | Yes | | https://www.emirates.com/english/before-you-fly/travel/unaccompanied-minors.aspx |
| EUROSTAR | Under 12** | | No but between 12-15 must travel on UM form (free of charge) | | https://www.eurostar.com/uk-en/travel-info/your-trip/travel-with-children
Unaccompanied Minor Form Eurostar |
| ** | Anyone under 18 who is a French citizen or a foreign minor, resident in France, must complete an AST form before they travel alone or without their parents, on Eurostar. This applies to journeys from France and is required for any unaccompanied children leaving the country | | | | Authorisation des sortie de territoire (AST) |
| EUROWINGS | Under 12 | | Yes | | https://www.eurowings.com/en/information/on-board/children.html |
| FINNAIR | Under 12 | | Yes | | https://www.finnair.com/es/gb/information-services/before-the-flight/special-services-health/children-travelling-alone |
| FLYBE | Under 12 | | No | | https://www.flybe.com/children-and-infants |
| IBERIA | Under 12*** | | Yes | | https://www.iberia.com/us/fly-with-iberia/minors/#12-17yearsold.Childrenwhotravelalone. |
| *** | Iberia will not accept bookings or tickets issued for unaccompanied minors (UMs) when other companies are involved in the journey including flights with a shared code (IB4XXX and IB7XXX) | | | | https://www.iberia.com/us/fly-with-iberia/minors/#12-17yearsold.Childrenwhotravelalone. |
| KLM | Under 14 | | Yes | | https://www.klm.com/travel/nl_en/prepare_for_travel/travel_planning/children/umnr_yp_framed.htm |
| LUFTHANSA | Under 12 | | Yes | | http://www.lufthansa.com/uk/en/Unaccompanied-minors |
| TAP | Under 12 | | Yes | | https://www.flytap.com/en-br/travel-with-children/unaccompanied-minors |
| TURKISH AIRLINES | Under 12 | | Yes | | https://www.turkishairlines.com/en-at/any-questions/can-my-child-travel-unaccompanied/ |
| RYANAIR | Under 16 | | No | | https://www.ryanair.com/gb/en/useful-info/help-centre/faq-overview/Travelling-with-children/T&C-does-Ryanair-carry-unaccompanied-minors |
| WIZZ AIR | Under 14 | | No | | https://wizzair.com/en-gb/information-and-services/booking-information/children-and-infants#/ |
