planning to visit latter April up to 7 nights;
primary purpose photograph attractions, shopping, dining, culture, street scenes, etc.
flying MIA-MID-MIA, want to use cc miles, our cache:
42,066 AAdvantage me
125,232 AAdvantage -wife
142,110 BA Avios me
32,501 BA Avios wife
10,045 Lufthansa me
517 Frontier me
55,507 Southwest me
52,000 Southwest wife
110,253 Delta Skymiles me
119,728 Delta Skymiles wife
20,504 United me
is it correct only AA offers nonstop MIA-MID-MIA?
what's our best cc mile spend choice, would going 1-stop rt save miles?
any Merida advice appreciated !

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thanks in advance...