DirectAir - booster seats?

[locodemickey]

We need boosters for the car at Sanford airport. Does anyone know if DirectAir checks these for free? I don't want to pay $40 for each booster we need to check. I also don't want to count them as a carryon. Thanks for any info.

 

[casjen]

We prepaid for ours and packed them in a carseat bag together. When we were checking in, they asked us what was in the bag. When we told them they checked it through as luggage. So I'd guess yes?