This 100-ml packaging is small enough for you to bring in your carry-on on a plane. If you're having trouble picking a fragrance, this one from Lacoste could be what you're after.
From OnBuy
Lacoste Pour Homme 100ml EDT Spray
The Beauty Store
Lacoste Pour Homme Eau de Toilette Spray 100ml
This product is also available at 1 unverified store.