Maybe, if under the right circumstances.
First, it was provably an old answer, for tax years prior to 2018. W-2 employees are no longer allowed to deduct the cost of out-of-town trips. Even in the old days, certain conditions had to be met.
For a self employed person to deduct the mileage, he would have to also be self employed in his home area. That is, he could not deduct the mileage for a one time gig, even if temporary
