PLAY Airlines, an Icelandic ultra-low-cost carrier, does not guarantee that families will be seated together for free. Following the "unbundled" budget model, PLAY charges a fee for specific seat assignments. If you choose not to pay for seats during booking or check-in, the system will randomly assign seats, which often results in groups being separated. However, under European aviation safety guidelines and PLAY's own internal policy, they make a concerted effort to ensure that children under the age of 12 are seated next to at least one accompanying adult from their reservation. This doesn't mean the whole family will be in the same row, but a child won't be left entirely alone. To ensure your entire party sits together, the airline strongly recommends paying the seat selection fee in advance, which is usually cheapest at the time of booking. If you find yourself separated upon boarding, you can ask the gate agent or flight attendants for assistance, but they are not obligated to move other passengers who have paid for their specific seats. For the best "free" chance, check in online the second the window opens, exactly 24 hours before departure.