three airlines that have air rights to land in Belize...

Continental
1-800-525-0280 (domestic),
1-800-231-0856 (international),
http://www.flycontinental.com


United
1-800-241-6522 (domestic), 1-800-538-2929 (international),
http://www.ual.com


LAN-Chile
1-800-735-5526,
http://www.lanchile.com