Conclusion: Insel Air offers a basic product if you want to reach from point A to point B. The staff was very friendly and helpfull. Compared to American Airlines I would choose Insel Air. However the prices on this route vary so much so it is advised to check both airlines if you are flying on a budget like me. Miami aiport is huge. I very much like how they made the new Rental Car City. It takes a lot of traffic away from the terminals, however it looks like you are walking a marathon to reach the Rental Car building.