What is a protected connection — a same-ticket link where the airline must rebook you if a delay makes you miss the next flight, versus unprotected self-transfers.

What is a protected connection?

A protected connection is a change of planes sold on one ticket so that if a delay or cancellation makes you miss the next flight, the ticketing airline must rebook you onward — you are not treated as a no-show on a separate fare.

Protection is a property of the ticket, not of the airport clock. Two flights with a comfortable two-hour gap can still be unprotected if you bought them as separate tickets. Conversely, a tight but legal same-ticket link that meets minimum connection time usually carries rebooking duty when the airline caused the miss.

Codeshares and alliances can appear on one ticket and still be protected; the operating carrier may re-accommodate on partner metal. Self-transfers marketed by OTAs as “hacker fares” are typically unprotected even when the app shows a single trip view — read whether one ticket number covers every segment.

When protection fails in practice (no seats, long overnight), care and compensation rules may still apply on qualifying routes — see flight delay compensation rights and EU261 complete rules. contract of carriage for virtual interlining brands.

How do you tell if a connection is protected before you buy?

Check that every flight shares one booking reference / e-ticket stock and was sold as a single itinerary — not two order numbers stitched in a shopping cart.

Example: Airline.com sells London → Frankfurt → Singapore on one PNR. Your first leg is late; you miss Frankfurt → Singapore. The airline must rebook you on a later flight, subject to its rules and passenger-rights care duties. Contrast: you buy EasyJet into Frankfurt and a separate Singapore Airlines ticket onward — that is a self-transfer; Singapore Airlines can treat you as absent if you never check in.

Document timelines if you claim later via how to claim flight compensation DIY or AirHelp. Layover comfort still matters: airport layover survival.