$179,750 per flight hour: How presidents get taxpayers to help pay for their campaigns

Obama’s trip to Florida and back today will cost at least $674,000 in Air Force One flight time alone.

His three-day, three-state swing that included two official events and eight fundraisers, netting more than $8 million last week, incurred flight costs of $2.1 million, based on the Air Force figure and flight times gathered from press pool reports.

As for how the proportion of that bill is broken down for Obama campaign to pay, experts say the law is murky and the practice of reimbursement somewhat “on your honor.”

“At the end of the day the Federal Election Commission has not been abundantly clear about how the costs of mixed purpose travel should be paid for,” said Paul Ryan, an expert in FEC law with the Campaign Finance Institute.