| Episodes | Name | Date | Rating |
|---|---|---|---|
| S1 EP1 | Welcome to Republic City | 2012-04-14 | 7.9 |
| S1 EP2 | A Leaf in the Wind | 2012-04-14 | 7.9 |
| S1 EP3 | The Revelation | 2012-04-21 | 7.3 |
| S1 EP4 | The Voice in the Night | 2012-04-28 | 7.4 |
| S1 EP5 | The Spirit of Competition | 2012-05-05 | 7.1 |
| S1 EP6 | And the Winner is... | 2012-05-12 | 8.2 |
| S1 EP7 | The Aftermath | 2012-05-19 | 8.3 |
| S1 EP8 | When Extremes Meet | 2012-06-02 | 8 |
| S1 EP9 | Out of the Past | 2012-06-09 | 8.2 |
| S1 EP10 | Turning the Tides | 2012-06-16 | 8.2 |
| S1 EP11 | Skeletons in the Closet | 2012-06-23 | 8.3 |
| S1 EP12 | Endgame | 2012-06-23 | 8 |
| S2 EP1 | Rebel Spirit | 2013-09-13 | 7.6 |
| S2 EP2 | The Southern Lights | 2013-09-13 | 6.8 |
| S2 EP3 | Civil Wars (1) | 2013-09-20 | 7.1 |
| S2 EP4 | Civil Wars (2) | 2013-09-27 | 7.7 |
| S2 EP5 | Peacekeepers | 2013-10-04 | 7 |
| S2 EP6 | The Sting | 2013-10-11 | 6.8 |
| S2 EP7 | Beginnings (1) | 2013-10-18 | 8.1 |
| S2 EP8 | Beginnings (2) | 2013-10-18 | 8.4 |
| S2 EP9 | The Guide | 2013-11-01 | 8.3 |
| S2 EP10 | A New Spiritual Age | 2013-11-08 | 8 |
| S2 EP11 | Night of a Thousand Stars | 2013-11-15 | 7.9 |
| S2 EP12 | Harmonic Convergence | 2013-11-15 | 8.1 |
| S2 EP13 | Darkness Falls | 2013-11-15 | 8.5 |
| S2 EP14 | Light in the Dark | 2013-11-15 | 7.5 |
| S3 EP1 | A Breath of Fresh Air | 2014-06-27 | 7.8 |
| S3 EP2 | Rebirth | 2014-06-27 | 8.6 |
| S3 EP3 | The Earth Queen | 2014-06-27 | 7.9 |
| S3 EP4 | In Harm's Way | 2014-07-11 | 8 |
| S3 EP5 | The Metal Clan | 2014-07-11 | 7.8 |
| S3 EP6 | Old Wounds | 2014-07-18 | 7.7 |
| S3 EP7 | Original Airbenders | 2014-07-18 | 7.7 |
| S3 EP8 | The Terror Within | 2014-07-25 | 7.8 |
| S3 EP9 | The Stakeout | 2014-08-01 | 7.9 |
| S3 EP10 | Long Live the Queen | 2014-08-08 | 7.5 |
| S3 EP11 | The Ultimatum | 2014-08-15 | 7.6 |
| S3 EP12 | Enter the Void | 2014-08-22 | 7.9 |
| S3 EP13 | Venom of the Red Lotus | 2014-08-22 | 8.8 |
| S4 EP1 | After All These Years | 2014-10-03 | 7.5 |
| S4 EP2 | Korra Alone | 2014-10-10 | 7.9 |
| S4 EP3 | The Coronation | 2014-10-17 | 7.1 |
| S4 EP4 | The Calling | 2014-10-24 | 8.5 |
| S4 EP5 | Enemy at the Gates | 2014-10-31 | 7.1 |
| S4 EP6 | The Battle of Zaofu | 2014-11-07 | 7.3 |
| S4 EP7 | Reunion | 2014-11-14 | 7.3 |
| S4 EP8 | Remembrances | 2014-11-21 | 5.9 |
| S4 EP9 | Beyond the Wilds | 2014-11-28 | 8.3 |
| S4 EP10 | Operation Beifong | 2014-12-05 | 7.1 |
| S4 EP11 | Kuvira's Gambit | 2014-12-12 | 7 |
| S4 EP12 | Day of the Colossus | 2014-12-19 | 7.3 |
| S4 EP13 | The Last Stand | 2014-12-19 | 7.6 |