Air Berlin
John, Air Berlin use the B737-800 winglet version on the BOH-PAD route. The PMI route is winter only but operates via PAD only on the way out. They do not offer a service from PMI to BOH. Strange I know. I think it would be a useful addition to their networks to offer a year-round BOH-PMI.
I have heard on the grapevine that Air Berlin are looking to expand at BOH with flights to their other German destinations.