We are planning to fly to the Azores this summer and we are only able to take one airline (Sata) They have informed me that we are unable to use a car seat on the airline due to a safety hazard. My son will be 21 months at the time and I find this bizarre that my only other option is to use a lap belt on him? So now we will have to "check" his car seat. They told me it can put in held baggage with our stroller but what does this mean? I am worried they are going to break it! Does anyone know any other options? Using a lap belt seems really unsafe to me, not to mention he will probably find a way out.