Leveling is a big part of FlyFF. Below are suggested routes for leveling, though you may find other routes that you prefer based on Class and playstyle. These are not the "best" or most efficient route, just the most commonly preferred ones. Please experiment to find what works for you.
There are a lot of EXP modifiers outside of Amplification Scrolls! Here are a few common ones to make sure you're making the most out of your precious leveling time:
Vote Buff (50% EXP at 7d Streak)
Party Buff (150% EXP with a full party and Learning Boost active)
Guild Buff (10% EXP at Guild Level 30+)
Couple Buff: Blessing of Love (10% EXP at Couple Level 21)
Scroll of Premium (10% EXP)
Griffin Raised Pet (25% EXP at Perfect S, 30% EXP at Angelic Perfect S)
Yetti (lv 73) -> Mutant Yetti (lv 79) -> Augu (lv 85) -> Mutant Augu (lv 91) -> Ghost of Forgotten Prince (lv 97) -> Ghost of Forgotten King (lv 103) -> Mammoth (lv 106)
Here's a route showing what level you should reach at each location
Once you're around level 103-105, you can move to Forsaken Tower B5 or Traseia
At around level 115, you can move to Neo Cascada (lv 121) until Master
Level 60-M -> Level 121-H
Level 60-M
Make sure your buffs and amps (if you're using them) are active; refresh them if you need to
Yetti (lv 73) -> Mutant Yetti (lv 79) -> Augu (lv 85) -> Mutant Augu (lv 91) -> Ghost of Forgotten Prince (lv 97) -> Ghost of Forgotten King (lv 103) -> Mammoth (lv 106) -> Cannibal Mamoth (lv 115)
Once you're around level 107, you can move to Traseia (you can buy a ticket from Gisela in Flaris)
Here's a route showing what level you should reach at each location
At around level 112, you an optionally finish leveling in Neo Cascada for better drops
Level 121-H -> Level 150-H
Level 121-H
Make sure your buffs and amps (if you're using them) are active; refresh them if you need to
This is the most difficult range for leveling, but you're almost there! If you've been to Traseia, you can claim a free ticket to Dark Traseia through Achievements
Go there and follow this route (stay at each spawn until the level indicated)
Once you reach level 141, you can level at Eldeon or Sunfall Eldeon to get to 150, but be warned, Eldeon monsters may be quite challenging at 141!
Level 150 AR0 -> Level 160 AR100
Level 150 AR0
Once you reach level 150, all your leveling should happen in Eldeon or Sunfall Eldeon.
In normal Eldeon, all monsters have the same stats, but different elements and spawns; they all give the same amount of experience per kill
In Sunfall Eldeon, all monsters have different stats, with each monster giving more experience the more difficult they are to kill
For 1v1 characters, it's recommended to focus on monsters you can kill in 2-3 hits if you're trying to optimize experience gain.
You can also get experience from farming in Cascada, but Cascada monsters will give less experience per kill than Eldeon, so Eldeon and Sunfall Eldeon are preferred for leveling