ΔE 15.6, loose: different enough that you should pick on purpose. Sand Yellow is more muted, cooler than Yellow Flame.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Sand Yellow is more muted, cooler than Yellow Flame.
The same difference applies the other way round: Yellow 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 Yellow Flame on the colour wheel See Sand Yellow on the colour wheel
All matches: Yellow Flame equivalents · Sand Yellow equivalents