ΔE 16.2, loose: different enough that you should pick on purpose. Light Orange is a little darker, cooler than Solar Flare.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Light Orange is a little darker, cooler than Solar Flare.
The same difference applies the other way round: Solar Flare is a little lighter, 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 Solar Flare on the colour wheel See Light Orange on the colour wheel
All matches: Solar Flare equivalents · Light Orange equivalents