Last year 2 from DC to KW was almost $1300.
$300 for 2 to get to Lauderdale, one way rental of a Jeep for 2 days was $80, lunch on the way down, a night at Hawks Cay w/massages that night, dinner, dolphins, drinks, massage the next AM before hitting the road, cab from airport to the races/hotel all before the 1st race was cheaper than flying in to KW (by about $8)..
Ended up renting a cargo van with 6 others to get back to Lauderdale Monday to make a 7PM flight home.