You can also use AA.
Depart:
Arrive
6:35am
2:08pm
Memphis, TN (MEM) to
Aruba, (AUA)
American Airlines - 1 Stop
Flight 4508 / Flight 1047
Operated by AMERICAN EAGLE
Flight #4508 on-time: 81 %
Depart:
Arrive
3:20pm
10:30pm
Aruba, (AUA) to
Memphis, TN (MEM)
American Airlines - 1 Stop
Flight 1780 / Flight 4281
Operated by AMERICAN EAGLE
Flight #1780
on-time: 79 %
Roughly the rate is $503.14pp for early August, I checked August 6 to the 13.