This fragrance from Serge Lutens could work well for a number of occasions. The 100-ml packaging is small enough for you to bring in your carry-on on a plane.
From AllBeauty
Serge Lutens - Santal majuscule 100ml Eau de Parfum Spray for Men and Women
Perfume Oasis
Serge Lutens Santal Majuscule EDP Spray Unisex
This product is also available at 2 unverified stores.