The former TOWIE star showed us how to do long-haul fashion in her gorgeous yet comfy maxi dress, flat sandals, fitted white jacket and fedora.
And look! She even pushes her own luggage!
Essex starlet Lucy hasn't revealed why she's over in LA: perhaps she's looking into extending her Results With Lucy fitness brand into the US market?
She recently launched the latest addition to her fitness empire: her Beach Body with Lucy campaign, which aims to get users beach body ready in a matter of weeks.
Lucy told us she created the plan after fans constantly quizzed how she achieved her own bikini bod: "This plan is exactly what I do but condensed into a six week plan. I'm not into gimmicks or quick fixes so it's nice to show people that real sweat equals real results!"
Lucy Mecklenburgh - life after TOWIE: