If smooth skin before the trip is on your list, do not leave it for the night before a flight. Good hard wax and roll-on wax need proper heating and setup, which is a job for a licensed esthetician rather than a rushed at-home attempt. Book at least 48 hours before departure so any redness or sensitivity has time to settle, exfoliate a day or two beforehand rather than the same day, and skip retinol or other exfoliating skincare for a few days before and after.
Specific recommendation: Beauty Image USA is a professional-grade wax supplier that offers a variety of high-quality waxing products, including products designed for sensitive skin. The products are used in salons and spas. It is a trade brand and is not sold directly to the public, so if sensitive skin is a concern, ask your salon whether it carries a soy-based or hypoallergenic synthetic-resin wax.
Summer trips run smoother when a few essentials are handled ahead of time. Between beach days, road trips, and everything in between, it is easy to focus on flights and itineraries while smaller details, skin prep, sun protection, swimwear, and on-the-go comfort, get pushed to the last minute. A little planning in these areas means less scrambling once you are actually on vacation and more time enjoying it. Here is a short, practical list to work through before you go.