I"m not sure if you are saying "Lear Jet" because that's the jet that
comes to mind or if you like the Lear better than other jets. However,
there are several schools out there that have programs that get you
some jet time. All ATP is one example. For $43,994.50 you go all the
way from where you are today to having some jet time. However, if you
plan to earn back your money flying jets, it could take quite some
time. You'll likely spend the first 10 years or so of your professional
life teaching in single engine trainers before you have enough hours to
get hired flying jets.

-Robert