A stroll through the cabin or even a nap across multiple seats: Especially on longer flights, many travelers view free seats as an invitation to stretch out. However, there is no blanket right to this comfortable extension, as current regulations from airlines and the Federal Association of the German Aviation Industry demonstrate. Why the cabin crew has the final say on this comfort request and what alternatives exist is of practical interest to frequent flyers as well as occasional vacationers.

The most important points at a glance

• Free seats may not be occupied independently.
• The permission to use additional seats is always at the discretion of the cabin crew.
• During takeoff, landing, and turbulence, an upright, strapped seating position is generally required.
• Some airlines offer special booking options for entire rows of seats.
• The costs for seating options vary depending on the airline and flight.

Crew makes decision on the use of available spots.

Even if unexpected seats remain empty in a row of an aircraft, there is no right to stretch out. According to the Federal Association of the German Aviation Industry, the ticket only allows for the specifically booked seat. The cabin crew, which is responsible for safety and order on board, must agree. Lufthansa also confirms this procedure. A spokesperson for the company explained that depending on occupancy levels and operational requirements, it may happen that empty seats are needed at short notice for reallocations or other purposes.

Strict rules for takeoff, landing, and turbulence

Not only on medium-haul flights over the Alps, but worldwide it applies: During takeoff, landing, and in phases of turbulence, all passengers must sit upright and fastened. For economy class, there are additional regulations from aviation security authorities that precisely dictate under which situations and with what type of seatbelt system passengers are allowed to lie across several seats. If heads or feet extend into the aisle, this is considered a safety risk and will be prevented by the crew. While being barefoot on the seat is not explicitly prohibited, Lufthansa recommends being mindful of hygiene and fellow travelers in one's own interest.

Legal moorings: Bookable offers for more comfort

Those who want to enjoy the luxury of a sleeping accommodation on long-haul flights do not have to rely on luck or kind flight attendants. Various airlines have responded to the demand and offer bookable options for entire rows of seats. Lufthansa calls the model "Sleeper's Row," while Air New Zealand sells the "Skycouch." Usually, there is an additional mattress, pillows, and often special belts. A future highlight is expected to be United Airlines' "Relax Row," available starting in 2027. Prices for these extras vary widely and can increase significantly with last-minute bookings. Passengers must make targeted reservations in advance for these offers and should compare price and service scope with Economy Plus or Business Class.

For travelers, this means: Those who want to lie down comfortably now have transparent and legal options with prior booking on some routes. Frequent flyers, on the other hand, should better refrain from stretching out in the free neighboring row without crew approval. The next practical consequence of this development is obvious: More and more airlines are incorporating bookable flexibility and comfort into the economy class.