We were in LV from 3/11 until 3/18. The pedestrian bridge from Bally's to Flamingo was closed, as previously mentioned. That gives two options: over the bridge to Bellagio, then to Caesar's, then down the escalator and around to the bridge between Caesar's and flamingo. the second alternative which we found to be less stressful in terms of crowded walkways, was to use Audrie St (aka LINQ Drive). We exited Bally's sportsbook, crossed Flamingo at the ligt, and walked down the sidewalk to the next corner, which leads to the main entrance/pool area of the Flamingo.. It is now the only car access to Flamingo as well.
Both were about the same distance.
Joy