u.s. airline alaska airlines tuesday say would discontinue daily flight los angeles havana cuba jan. 22 due recent change cuba travel policies u.s. government u.s. government make tough last week americans visit cuba business country make good pledge president donald trump roll back democratic predecessor move toward warm tie havana regulations include ban americans business 180 cuban government entities hold company tourism company airline start los angeles-havana flight january year say redeploy aircraft market strong demand passengers ticket book havana january 22 rebooked another airline additional cost full refund company say alaska airlines discontinue los angeles-havana daily flight