archman:I did the drive from College Station last week... seven hours of driving, blah.
Next time I visit South Padre for some offshore diving, I'm flying down to Harlingen, and renting a car for a couple of days. The extra cost would be partially offset by not having to spend an additional day in a hotel.
Just the opposite. Remember the 24 hours rule about flying?
If driving, you can get out of the water at noon Sunday, hop into your car, and be home by 7 or 8 pm that night.
If flying, you'll have to get a room for Sunday night to offgas.
By the time you factor in everything involved with flying, getting to the airport early, checking baggage, flight time, retrieving baggage, waiting at the rental counter, etc you are only saving a few hours for all the extra money.