A second season, titled Sword Art Online II, aired July 5 to December 20, 2014.[6][7] At Katsucon, it was announced that the English dub of the second season would air on Adult Swim's Toonami on March 29, 2015.[8]
A third season, titled Sword Art Online: Alicization, began airing on October 7, 2018,[9] with a one-hour world premiere which aired in Japan, the United States, Australia, France, Germany, Russia and South Korea on September 15, 2018.[10] The first half of Sword Art Online: Alicization aired from October 7, 2018 through March 31, 2019. The second half, titled War of Underworld, aired on October 13, 2019. The final part of the War of Underworld series was originally scheduled to premiere on April 26, 2020, but due to the effects of the COVID-19 pandemic in Japan, it was rescheduled to July 12, 2020.
Alicization covered four cours (47 episodes) and adapted from the novel's ninth volume, Alicization Beginning, to the eighteenth volume, Alicization Lasting.[11] The English dub of the third season premiered on February 10, 2019 on Adult Swim's Toonami programming block.[12] The English dub version for the second cour of the second part of the third season premiered on Adult Swim's Toonami on November 8, 2020.[13]
^ abcTokyo MX lists the series as premiering at 24:00 on Saturday, which is effectively Sunday at 12:00 a.m. JST.
^Adult Swim lists the series as premiering at 2:00 a.m. ET/PT on Saturday, which is effectively Sunday.[17]
^TV Guide errorously stated that the English version of "The Lugru Corridor" was originally aired on the night of December 28–29, 2013,[16] but Toonami did not air this episode on that night.[36]
^On some streaming platform like Dasiki, Episode 14.5 were labelled as 15 with all episodes after labelled with episode number one higher than others (e.g. episode 15 labelled as #16) due to system restriction.[51]
^Sword Art Online II premiered in Tokyo MX's Saturday 23:30 (11:30 p.m. JST) time slot.[54]
^Adult Swim lists the series as premiering at 1:00 a.m. ET/PT on Saturday, which is effectively Sunday.
^The first episode was screened at special events held in the United States, France, Germany, Hong Kong, Taiwan, Korea and Japan before the television premiere between June 29 and July 4, 2014.[54][56]
^Sword Art Online: Alicization premiered with a special one-hour episode, with pre-screenings in several countries on September 15, 2018.
^The English dub of episode 6 of Alicization originally aired on March 17, but due to a broadcast error six minutes into the episode that caused it to freeze, it had to be skipped to the first half of episode 12 of Megalobox. The full uninterrupted episode was uploaded hours later on Adult Swim's website. Toonami re-aired the episode on March 24, pushing back episode 7 for a back-to-back airing with episode 8 the following week on March 31.[92]
^#01 北の地にて [Episode 1 (25) – "In the North"] (in Japanese). Aniplex. Archived from the original on 2019-10-10. Retrieved October 10, 2019.
^#02 襲撃 [Episode 2 (26) – "Raids"] (in Japanese). Aniplex. Archived from the original on 2019-10-16. Retrieved October 16, 2019.
^#03 最終負荷実験 [Episode 3 (27) – "The Final Load Test"] (in Japanese). Aniplex. Archived from the original on 2019-10-25. Retrieved October 25, 2019.
^#04 話ダークテリトリー [Episode 4 (28) – "Dark Territory"] (in Japanese). Aniplex. Archived from the original on 2019-11-18. Retrieved November 18, 2019.
^#05 開戦前夜 [Episode 5 (29) – "The Night Before Battle"] (in Japanese). Aniplex. Archived from the original on 2019-11-18. Retrieved November 18, 2019.
^#06 騎士たちの戦い [Episode 6 (30) – "Battle of the Knights"] (in Japanese). Aniplex. Archived from the original on 2019-11-18. Retrieved November 18, 2019.
^#07 失格者の烙印 [Episode 7 (31) – "Stigma of the Disqualified"] (in Japanese). Aniplex. Archived from the original on 2019-11-22. Retrieved November 22, 2019.
^#08 血と命 [Episode 8 (32) – "Blood and Life"] (in Japanese). Aniplex. Archived from the original on 2019-11-30. Retrieved November 30, 2019.
^#09 剣と拳 [Episode 9 (33) – "Sword and Fist"] (in Japanese). Aniplex. Archived from the original on 2019-12-07. Retrieved December 8, 2019.
^#10 創世神ステイシア [Episode 10 (34) – "Stacia, the Goddess of Creation"] (in Japanese). Aniplex. Archived from the original on 2020-06-15. Retrieved December 8, 2019.
^#11 非情の選択 [Episode 11 (35) – "Heartless Choice"] (in Japanese). Aniplex. Archived from the original on 2020-06-15. Retrieved December 8, 2019.
^#12 筋の光 [Episode 12 (36) – "Ray of Light"] (in Japanese). Aniplex. Archived from the original on 2020-06-15. Retrieved December 8, 2019.
^#13 アンダーワールド大戦 [Episode 13 (37) – "The Great Underworld War"] (in Japanese). Aniplex. Archived from the original on 2020-07-11. Retrieved July 11, 2020.
^#14 無限の果て [Episode 14 (38) – "End to Eternity"] (in Japanese). Aniplex. Archived from the original on 2020-07-18. Retrieved July 11, 2020.
^#15 扇動 [Episode 15 (39) – "Instigation"] (in Japanese). Aniplex. Archived from the original on 2020-07-25. Retrieved July 26, 2020.
^#16 コード871 [Episode 16 (40) – "Code 871"] (in Japanese). Aniplex. Archived from the original on 2020-08-01. Retrieved August 1, 2020.
^#17 悪魔の子 [Episode 17 (41) – "Prince of Hell"] (in Japanese). Aniplex. Archived from the original on 2020-08-08. Retrieved August 9, 2020.
^#18 記憶 [Episode 18 (42) – "Memories"] (in Japanese). Aniplex. Archived from the original on 2020-08-15. Retrieved August 16, 2020.
^#19 覚醒 [Episode 19 (43) – "Awakening"] (in Japanese). Aniplex. Archived from the original on 2020-08-22. Retrieved August 22, 2020.
^#20 夜空の剣 [Episode 20 (44) – "The Night-Sky Blade"] (in Japanese). Aniplex. Archived from the original on 2020-08-29. Retrieved August 29, 2020.
^#21 時の彼方 [Episode 21 (45) – "Beyond Time"] (in Japanese). Aniplex. Archived from the original on 2020-09-05. Retrieved September 5, 2020.
^#22 アリス [Episode 22 (46) – "Alice"] (in Japanese). Aniplex. Archived from the original on 2020-09-12. Retrieved September 13, 2020.
^#23 ニューワールド [Episode 23 (47) – "New World"] (in Japanese). Aniplex. Archived from the original on 2020-09-19. Retrieved September 19, 2020.
