ΔE 11.9, fair: the same colour family, but not a straight swap. Faded Orange is more muted, cooler than Flickering Flame.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Faded Orange is more muted, cooler than Flickering Flame.
The same difference applies the other way round: Flickering Flame is more saturated, warmer.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Flickering Flame on the colour wheel See Faded Orange on the colour wheel
All matches: Flickering Flame equivalents · Faded Orange equivalents