Originally Posted by
LPDAL
1) It is not expensive to fly into Key West, at least on 3M. Fares are usually $150-200 round trip,
2) The flight is just as scenic as driving -- much better because you have an aerial view and can take as many pictures as you please.
3) You can easily connect with codesharing between 3M/UA in FLL (their hometown city and headquarters) and AA/MQ in MIA.
-LPDAL
Silver only flies via FLL, TPAMC, and MCO.
During March, I could only find $256 as the cheapest, using weekend flights. Adding that to an existing fare into FLL (MCO, TPA to Key West seems to be a long way in a small prop plane) might make it quite a bit more than renting a car.
Time may be more important than $$ of course, and yes quite a scenic flight. Harder to stop for a scenic drink though.