Aa: Mia-arn, $430 usd rt
 

https://goo.gl/flights/yGsV

Pretty new to the forum so not sure if this had been mentioned. Seemed really low for AA codeshare

Also ex-LAX for ~$450 :)

409$ to TLL. Great deal.

Incredible indeed
 

Air fares are half of what they used to be (calculated in dollar values of the time).. Looking up the history of Miami to London airfares , in thirty years , the fares were more or less the same 411 and now being offered at 411 dollars, not taking into account the inflation over the 30 years. (Air Florida I think the airlines was called)
But try to get a flight out of Miami this weekend or before? Miami to New York City is being sold for 1500 dollars ! US to Asia is now around 650 dollars and QR has good fares consistently around 800 to all over Asia from Miami.

The fare posted by OP is excellent and looking up at AA.COM, I found Miami to Paris for similar price as well. Might use two SWU and that would be a good gift to myself over Toussaint Holidays..