I have been checking every day for our annual November trip to LV from MKE. Last week I came across a great deal 149$ each way direct at 1:00. Excited, i frantically text'd my 3 friends to coordinate and confirm exact dates. By the time I got the third confirmation (6:00) the fares were back up to 189. Now i check every day and they go from 179-211$ depending on the day of the week. Fridays seem to be more expensive than mon/tues. Was this just a fluke or does SW airlines really have like 5 hour sales? I am optimistic I will find another sale before November, but thinking maybe I should just book the 179 and change if i find a sale this summer. Anyone change flights with SW? I think i get a credit for the difference. Also, back in April, SW had an early bird fall sale that I missed. Do they do this frequently throughout the summer or is it dependent upon their current booking rates? Lots of questions here so Thanks again forum for any answers!