Where to watch
HBO Max Amazon Channel
HBO Max
Amazon Video
Apple TV Store
Google Play Movies
YouTube
Fandango At Home
Availability shown for United States · rights vary by countryCast · Directed by Mamoru Hosoda
Ryunosuke Kamiki
Kenji Koiso (voice)
Hitomi Miyauchi
Natsuki Shinohara (voice)
Mitsuki Tanimura
Kazuma Ikezawa (voice)
Sumiko Fuji
Sakae Jinnouchi (voice)
Ayumu Saito
Wabisuke Jinnouchi (voice)
Takahiro Yokokawa
Takashi Sakuma (voice)
Kiyomi Tanigawa
Yukiko Shinohara (voice)
Mutsumi Sasaki
Kazuo Shinohara (voice)
Mieko Nobusawa
Mariko Jinnouchi (voice)
Takuya Kirimoto
Riichi Jinnouchi (voice)
Sakiko Tamagawa
Rika Jinnouchi (voice)
Ichiro Nagai
Mansuke Jinnouchi (voice)
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Summer Wars — streaming FAQ
Which OTT platform streams Summer Wars?
Summer Wars is streaming on HBO Max in United States, and available to rent or buy on Amazon Video and Apple TV Store. It's not currently on Netflix.
Is Summer Wars on Netflix?
No, Summer Wars is not on Netflix in United States as of August 2026. It's currently on HBO Max.
Is Summer Wars on Amazon Prime Video?
Summer Wars isn't included with a Prime Video subscription in United States, but you can rent or buy it on Amazon Video.
Where can I watch Summer Wars for free?
Summer Wars is available on HBO Max in United States, but you'll need an active subscription — there's no free option right now.