It was going to cost my 5 person family $5-7K to fly to Florida for the Holidays this year. I realize holidays are bad times. But I looked at other times and it still would be close to $4k to book flights to pretty much anywhere we thought of going over the next 6 months. Allegiant you can get a bit cheaper, but by the time you pay all the fees most places were about $750+ for 1 round trip ticket.
Does not take long to realize you save a lot of money driving at those prices. Hell I looked at taking the family to the Caribbean for the holidays. Flights were ridiculous, like $2-3K per ticket to the Bahamas, just stupid prices. I admit I didnt shop a lot, once I seen how high things were I just gave up and we had planned on driving until plans totally changed.