Hekela, I use Airborne and also Zicam before I get to the airport or on the plane; and even at work during cold & flu season. It works really well and I swear by it. I was only sick one time last year and almost everyone around me was sick much more often. Remember to bring some wipes or hand disinfectant too; best yet....wash, wash, wash those hands!
Hee hee. Enjoy your trip, and hope this helped.