Sword Art Online watch order: every season, Ordinal Scale, Progressive and what comes next

Release order or story order?

The two orders differ in one place. Progressive is Reki Kawahara's own retelling of Aincrad from the first floor up, and the films tell it from Asuna's side ^{official site}. Aria of a Starless Night covers the same stretch as Season 1's first two episodes, from just before the game launches to the first-floor boss fight ^ANN. Scherzo of Deep Night picks up a little under a month later ^ANN. Everything else runs in the same order whichever line you follow.

When to watch the Progressive films

Watch them after Season 1 at the earliest. Anime News Network's review of Aria points out that "the vast majority of viewers of this film will have seen the original", and says Asuna's viewpoint puts familiar scenes in a new light ^ANN. The films came out after War of Underworld, so release order puts them last, while watching them right after Season 1 keeps you in Aincrad.

For strict story order on a rewatch, both films fit between Season 1's episodes 2 and 3. The official US chronology dates episode 2's first-floor boss fight to December 3, 2022, and episode 3 opens in April 2023 ^{official chronology}. Aria ends with that same boss fight, and Scherzo picks up less than a month later, mostly on the fifth floor ^{ANN, Wikipedia}. Both films are optional. ANN calls Scherzo "worth a watch if you're invested in the characters" ^ANN.

Where Ordinal Scale fits

Between Sword Art Online II and Alicization. It's an original story Kawahara wrote for the film, and ANN's review places it about two weeks after Mother's Rosario and about two months before Alicization ^ANN. Don't skip it: Alicization uses details the film introduced, such as the Augma headsets Kirito's friends wear ^Wikipedia. It opened in Japan on February 18, 2017, in the US on March 9 and in the UK on April 19 ^{Wikipedia, ANN}.

How many seasons of Sword Art Online are there?

Three seasons with 96 TV episodes ^Wikipedia, split into arcs the official site lists one by one ^{official site}:

• Season 1 (July to December 2012): 25 episodes, Aincrad (1 to 14) and Fairy Dance (15 to 25) ^{official site}.
• Sword Art Online II (July to December 2014): 24 episodes, Phantom Bullet (1 to 14), Calibur (15 to 17) and Mother's Rosario (18 to 24) ^{official site, Calibur, Mother's Rosario}.
• Alicization (October 2018 to September 2020): 47 episodes over four cours. Episodes 25 to 47 carry the title War of Underworld, and its second part moved from April to July 2020 because of COVID-19 ^{Wikipedia, ANN}.

Streaming listings count War of Underworld as a fourth season of 23 episodes, so you'll often see four seasons ^JustWatch. The dates on this page follow Wikipedia's episode lists. The show aired around midnight, so the official site's broadcast notice lists Season 1's finale late on Saturday, December 22, 2012 (24:15 on Tochigi TV, 27:58 on MBS), which is early on December 23 ^{official broadcast notice}.

Sword Art Online movies and specials in order

Four films and a TV special are out, and a fifth film is due in 2028. Ordinal Scale is the one you need before Alicization. Unanswered//butterfly comes only with a game, so the line and the calculator leave it out.

Is Extra Edition worth watching?

Only if you want everything. Kawahara described the 2013 special as a recap of Aincrad and Fairy Dance with some new footage ^ANN. ANN's review found that "the last half hour or so" is new, a side quest that the official chronology places between the first two seasons ^{official chronology}. The same review recommended the special only to "the most diehard" fans ^ANN. It runs 100 minutes ^{ANN encyclopedia}, so if you're short on time, it's the easiest thing on the line to drop.

What is Unanswered//butterfly?

A feature-length side story bundled with the Ultimate and Premium editions of the game Echoes of Aincrad, which came out on July 9, 2026 in Japan and July 10 in the West ^ANN. It follows new characters on Aincrad's third floor, a little over a month into the death game, and runs just under two hours. ANN's reviewer called it "certainly worth watching" for fans but balked at the $110 price of entry ^{ANN review}. JustWatch doesn't list it on any US or UK service, so you can safely leave it out.

Recaps you can skip

Sources: Wikipedia, Sword Art Online II, Wikipedia, Alicization and the official Phantom Bullet page, which lists episode 14.5.

Where does Gun Gale Online fit?

Sword Art Online Alternative: Gun Gale Online is a two-season spin-off with its own cast, based on Keiichi Sigsawa's light novels ^Wikipedia. It's set in Gun Gale Online, the shooter game Kirito visits in Phantom Bullet ^{official site}, so it makes the most sense after Sword Art Online II. You can skip it without missing any of Kirito's story.

Season 1 aired 12 episodes from April 8 to July 1, 2018, and Season 2 aired 12 more from October 5 to December 21, 2024 ^Wikipedia. Season 2 covers the Third Squad Jam in episodes 1 to 8 and One Summer Day from episode 9 ^{official site}. Those stories fill volumes 4 to 6 of the novels, so the next one to read is volume 7, Fourth Squad Jam ^Wikipedia. The two seasons add 24 episodes, about 9.5 hours at ANN's listed 24 minutes an episode ^{ANN, ANN}. No third season had been announced as of October 26, 2026.

Is there a Sword Art Online Season 4?

Not as a TV series. The next anime is Sword Art Online the Movie: Integral Domain, announced on July 7, 2026 for theaters in 2028 ^{official site, ANN}. It's an original story by Kawahara set after Alicization, directed by Shingo Adachi at A-1 Pictures and Psyde Kick Studio ^{official site, ANN}. The film project was first announced in November 2022, at the anime's tenth-anniversary event ^ANN. As of October 26, 2026, it has no exact release date, and no anime of Unital Ring, the novels' current arc, has been announced. If you want more of Kirito's story before 2028, the novels are where you'll find it.

Where the anime stops in the light novels

Kawahara's novels come out from Dengeki Bunko in Japan and Yen Press in English, and volume 29 came out in Japan on April 10, 2026 ^Wikipedia. The TV series adapts volumes 1 to 18, ending with the Alicization arc ^{Wikipedia, Wikipedia, TV series}.

Most volume titles match the arcs, so volume 7 is Mother's Rosario. Season 1 also adapts side stories: volume 2's four short stories share their Japanese titles with episodes 3, 4, 7 and 11, and volume 8's A Crime Within the Walls shares its title with episode 5 ^{Wikipedia, official episode list}. Alicization's first 24 episodes end with volume 14 ^Wikipedia.

War of Underworld ends with volume 18, so you start reading at volume 19. Volumes 19 and 20 tell Moon Cradle, a side story, and the next main arc, Unital Ring, begins in volume 21 ^Wikipedia. If you only want the main story, you can jump straight to volume 21. Volume 22 is a collection of short stories, and Unital Ring continues from volume 23 ^Wikipedia. Yen Press published volume 19 in English on April 21, 2020 ^{Yen Press}.

The Progressive films cover two of that series' stories. Aria of a Starless Night draws on volume 1, with new material in its first half, and Scherzo of Deep Night shares its title with volume 4 ^{ANN, Wikipedia}. The stories in between, Rondo of a Fragile Blade, Concerto of Black and White and Barcarolle of Froth, aren't animated. If you liked the films, Progressive continues after Scherzo with Canon of the Golden Rule in volume 5 ^Wikipedia.

Where to watch Sword Art Online

Where it streams, according to JustWatch on October 26, 2026:

• Crunchyroll streams the whole TV series, Alicization and War of Underworld included, in the US and the UK, directly or through its Prime Video channel ^{JustWatch US, UK}, with the English dub; War of Underworld's dub arrived in February 2022 ^ANN.
• Ordinal Scale and both Progressive films are on Crunchyroll in both countries ^{JustWatch, UK, Aria US, UK, Scherzo US, UK}. Crunchyroll streams the Progressive films subbed and dubbed ^{ANN, JustWatch}.
• Hulu also carries Season 1, Ordinal Scale and Extra Edition if you're in the US ^{JustWatch, Ordinal Scale, Extra Edition}. In the UK, Extra Edition is only on the Crunchyroll Amazon Channel ^{JustWatch UK}.
• Gun Gale Online streams on Crunchyroll in the US and UK ^{JustWatch US, UK}, and Season 2's dub started on November 1, 2024 ^Wikipedia.

How long does it take to watch Sword Art Online?

The main story, Season 1 through War of Underworld plus Ordinal Scale, takes about 39 hours, and the TV episodes alone about 37. Add Extra Edition (1 h 40 min) and both Progressive films (3 h 17 min together) and you're at about 44 hours. The times use Wikipedia's listed runtimes: 23 minutes an episode, with a 25-minute Season 1 finale and a 47-minute Alicization premiere ^Wikipedia, plus each film's listed length ^{ANN, ANN, ANN}.

Sword Art Online questions

What order do you watch Sword Art Online in?

Season 1 (Aincrad, then Fairy Dance), Sword Art Online II (Phantom Bullet, Calibur, Mother's Rosario), the film Ordinal Scale, then Alicization and War of Underworld. That's 96 episodes and one film, about 39 hours. The two Progressive films are optional; watch them after Season 1 or at the end.

Where does Ordinal Scale fit in the Sword Art Online timeline?

After Sword Art Online II and before Alicization. Anime News Network's review places it about two weeks after Mother's Rosario and about two months before Alicization, and Alicization picks up details the film introduced, so don't skip it.

Should you watch Sword Art Online Progressive first?

Not on a first watch. Aria of a Starless Night retells Season 1's first two episodes from Asuna's side, and it lands best once you know the original. Watch the two films after Season 1, or after War of Underworld in release order.

Is there a Sword Art Online Season 4?

No TV season has been announced as of October 26, 2026. The next anime is Sword Art Online the Movie: Integral Domain, an original story set after Alicization, due in theaters in 2028.

Where does the Sword Art Online anime end in the light novels?

War of Underworld ends with volume 18, the last Alicization volume. Start reading at volume 19: volumes 19 and 20 are the Moon Cradle side story, and the next main arc, Unital Ring, begins in volume 21.