Your honeymoon is the most unique trip you and your partner will have together.
Hotels, airlines, and restaurants can offer up some congratulatory perks for honeymooners, so all you need to do is to let them know politely that you’re on your honeymoon.
For Airlines, call a few days before your honeymoon, to mention that you're traveling for your honeymoon and to inquire as to whether any upgrades are available.
For Hotels, if you give some advance notice you may get an upgrade, and you’ll probably have some surprises once you enter your room such as chocolates or roses.
Don’t just stop at hotels and airlines, you can mention this everywhere you go on your honeymoon, such as restaurants, spas, and everything else. All you have to do is to mention to the person checking you in or greeting you that you’re on your honeymoon.