Season Nine of Adventure Time premiered on April 21, 2017.
Episodes
| # |
#
|
Title
|
|
|
Airdate
|
|
|
|
| 253 |
1
|
Orb
|
|
|
April 21, 2017
|
|
|
|
| Elements Mini-Series
|
| 254 |
2
|
Skyhooks (1)
|
|
|
April 24, 2017
|
|
|
|
| 255 |
3
|
Bespoken For (2)
|
|
|
April 24, 2017
|
|
|
|
| 256 |
4
|
Winter Light (3)
|
|
|
April 25, 2017
|
|
|
|
| 257 |
5
|
Cloudy (4)
|
|
|
April 25, 2017
|
|
|
|
| 258 |
6
|
Slime Central (5)
|
|
|
April 26, 2017
|
|
|
|
| 259 |
7
|
Happy Warrior (6)
|
|
|
April 26, 2017
|
|
|
|
| 260 |
8
|
Hero Heart (7)
|
|
|
April 27, 2017
|
|
|
|
| 261 |
9
|
Skyhooks II (8)
|
|
|
April 27, 2017
|
|
|
|
| 262 |
10
|
Abstract
|
|
|
July 17, 2017
|
|
|
|
| 263 |
11
|
Ketchup
|
|
|
July 18, 2017
|
|
|
|
| 264 |
12
|
Fionna and Cake and Fionna
|
|
|
July 19, 2017
|
|
|
|
| 265 |
13
|
Whispers
|
|
|
July 20, 2017
|
|
|
|
| 266 |
14
|
Three Buckets
|
|
|
July 21, 2017
|
|
|
|