Shout out, with full volume, Hikari Are!
So, the Short answer is there are 5 seasons in a total of Haikyuu.
But I think they will have 2 more seasons because the Nekoma arc has to be finished and also the ending time skipped and everything else has to be finished as well.
The first two, as you mention, are on Netflix and they will take you all the way until the Semifinals of the Spring Interhigh Tournament.
Season 3 (known as “Haikyuu!!! The Battle of Concepts.” Which has also been re-released as a movie) is entirely dedicated to the final match of that tournament when Karasuno faces Shiratorizawa.
Season 4 (also known as ‘Haikyuu!!! To the Top’) started earlier this year and released thirteen (13) episodes before the pandemic forced them to delay new episodes due to employees working from home.
It shows the pre-Japan National Highschool Tournament (Nationals) training arc and the first few matches of the Nationals.
Season 5 (better known as ‘Haikyuu!!! To the Top part 2’) just recently started airing episodes (on Crunchyroll anyway) and it is continuing the Nationals Tournament arc.
How many seasons are there of Haikyuu on Netflix?
Unfortunately, Haikyuu, the third season that features the incredible volleyball match between Shiratorizawa Academy (now Karasuno High School), is not available on Netflix America.
What’s Haikyuu all about?
Haikyuu tells the story of Hinata Shoyo (an aspiring volleyball player) and his journey to become one of the greatest athletes in history despite all his flaws.
Although Hinata is an unusual player, once he meets Kageyama Tobio, a volleyball genius, they work together to help Karasuno’s fallen high school team fly again.
This anime is a blast. It motivates you to reach your goals, no matter what. Haikyuu is a great anime to watch. It has a lot of interesting characters and hype volleyball matches.
You won’t be disappointed, trust me.