Sword Art Online: Season 4 (Sword Art Online Alicization: War of Underworld)
This season started on October 13, 2019. The table lists episodes with recorded air dates up to September 28, 2026.
| Ep | Title and air date | My place |
|---|
| 1 | In the Far North · 23 min | |
| 2 | Raids · 23 min | |
| 3 | The Final Load Test · 23 min | |
| 4 | Dark Territory · 23 min | |
| 5 | The Night Before Battle · 23 min | |
| 6 | Battle of the Knights · 23 min | |
| 7 | Stigma of the Disqualified · 23 min | |
| 8 | Blood and Life · 23 min | |
| 9 | Sword and Fist · 23 min | |
| 10 | Stacia, the Goddess of Creation · 23 min | |
| 11 | Heartless Choice · 23 min | |
| 12 | Ray of Light · 23 min | |
| 13 | The War of Underworld · 23 min | |
| 14 | End to Eternity · 23 min | |
| 15 | Instigation · 23 min | |
| 16 | Code 871 · 23 min | |
| 17 | Prince of Hell · 23 min | |
| 18 | Memories · 23 min | |
| 19 | Awakening · 23 min | |
| 20 | The Night-Sky Blade · 23 min | |
| 21 | Beyond Time · 23 min | |
| 22 | Alice · 23 min | |
| 23 | New World · 23 min | |
