It costs ~300$ to drive 1,000 miles. So, I don't think a few hundred is for a ticket is actually more expensive.
The time invested is probably the most expensive part of driving, and that's where flying has been losing its lead for years.
PS: "57.5 cents per mile for business miles driven, up from 56 cents in 2014"
"The standard mileage rate for business is based on an annual study of the fixed and variable costs of operating an automobile, including depreciation, insurance, repairs, tires, maintenance, gas and oil."