They go up, they go down, they go all around.
LUS is listed as all 'I' (international). Mix of domestic and international. The highest percentage of international (Caribbean) would be the MIA/737/I flying.
Six month averages -
LAX 320 - 13% 4 days
32% 3 days
48% 2 days
7% turns
PHL - 49% 4d
26% 3d
13% 2d
12% turns
UDC - 26% 4d
27% 3d
24% 2d
24% turns
MIA 737 - 19% 4d
45% 3d
19% 2d
17% turns
LGA 737 - 1% 4d
46% 3d
25% 2d
29% turns
E190 - 58% 4d
28% 3d
5% 2d
9% turns
I think the 190's do a lot of Shuttle flying.