Assigned seat or seat selection: what's really worth it

When paying for a seat makes sense

On a short domestic flight the automatically assigned seat is usually acceptable. On a long-haul flight the choice matters more: window or aisle, according to your habits during the flight. Couples or families traveling together should consider purchasing when the automatic system risks separating passengers in different parts of the cabin, a common situation on full flights. Those with claustrophobia tend to prefer the aisle, those prone to air sickness prefer a seat over the wings, where turbulence is felt less.

The free alternative: online check-in

Many airlines automatically assign available seats at online check-in: doing it as soon as it opens, usually 24-48 hours before departure according to the airline, increases your chances of getting a satisfactory seat for free without paying the surcharge.

Details to verify before paying

Emergency exit rows, sold at a higher price for extra space, are worthwhile for tall passengers but come with specific responsibilities in case of emergency. Seat maps on specialized websites flag in advance seats with unfavorable characteristics, like a backrest that doesn't recline, before paying for a choice that might disappoint. Those traveling with a newborn who want a seat with a removable bassinet must verify its availability, generally limited, by contacting the airline directly well in advance.

Before paying a surcharge, do online check-in as soon as it opens: it's the simplest way to get a good seat for free on most flights.