The data paints a picture of a passenger who is typically helpful and sociable, yet sets clear boundaries regarding comfort and shared space on the plane.

Portuguese travellers stand out for their helpfulness. The vast majority (78%) are willing to assist other passengers in stowing heavy luggage in overhead bins, although 45% admit that this willingness depends on the passenger's profile or the size of the bag.

Only 7% flatly refuse to help, preferring to leave the task to the cabin crew. This spirit of sharing extends to middle-seat armrests, with 61% of respondents happy to share them with their neighbours. In contrast, younger travellers (aged 18 to 24) tend to be more territorial, with 9% believing the armrest belongs to whoever claims it first.

The tolerance of Portuguese travellers is tested by personal space and onboard odours. For 79% of Portuguese travellers, body odours (such as sweat or flatulence) represent the worst in-flight scenario, followed by restroom smells (8%), strong perfumes (8%), and pungent food (4%).

Regarding annoying behaviours, abruptly reclining one's seat without warning tops the list of complaints (54%). Boarding delays caused by slow luggage stowage (35%), the rush to stand up before doors open (30%), requests to swap seats (14%), and the tradition of applauding upon landing (12%) are among the other least-appreciated habits.

The study also examined the Portuguese attitude toward attempts at in-depth conversation during the journey. Nearly half (47%) are open to talking, viewing the exchange as an opportunity for a good story, a trend that places Portugal and Italy among the countries most open to social interaction on board.

However, 31% prefer giving short answers to shut down the conversation, 11% use avoidance strategies such as pretending to sleep, and 3% even admit to asking to change seats if the other person persists.

Demographically, men are more willing to engage in personal conversations, whereas women tend to opt for quick responses to maintain their privacy during the flight.