The 18 Best Sci-Fi TV Series Finales

Cosmic reveals, time loops and quiet goodbyes, plus a few endings fans still argue about.

1. 1
   Battlestar Galactica: Daybreak

   The 2009 finale of Battlestar Galactica that resolved the fleet's search for Earth in a sprawling three-part episode.
   1000pts
2. 2
   Stranger Things: The Rightside Up

   The 2025 finale of Stranger Things that brought the Hawkins story to its close.
   591pts
3. 3
   Lost: The End

   The 2010 finale of Lost that revealed the sideways world and gathered the survivors for a last reunion.
   542pts
4. 4
   Star Trek TNG: All Good Things...

   The 1994 time-bending finale of The Next Generation that put Picard and Q on trial across three timelines.
   542pts
5. 5
   Quantum Leap: Mirror Image

   The 1993 finale of Quantum Leap, in which Sam Beckett leaps into a bar and meets a mysterious bartender.
   487pts
6. 6
   Stargate SG-1: Unending

   The 2007 tenth-season finale of Stargate SG-1, which sent the team through decades in a stasis-field time loop.
   487pts
7. 7
   Person of Interest: return 0

   The 2016 finale of Person of Interest in which the team sacrifices itself to shield the Machine.
   422pts
8. 8
   Fringe: An Enemy of Fate

   The 2013 finale of Fringe that finally launched the plan to defeat the Observers.
   345pts
9. 9
   Babylon 5: Sleeping in Light

   The quiet 1998 farewell to Babylon 5, set twenty years later around the death of John Sheridan.
   345pts
10. 10
    Star Trek: Picard: The Last Generation

    The 2023 finale of Picard that reunited the full Next Generation crew on the Enterprise-D.
    345pts
11. 11
    Futurama: Into the Wild Green Yonder

    The 2013 series wrap-up of Futurama, a feature-length run of time loops and a cosmic chase.
    345pts
12. 12
    Doctor Who: The End of Time

    The two-part 2010 story that ended David Tennant's Tenth Doctor with a tearful regeneration.
    253pts
13. 13
    Orphan Black: To Right the Wrongs

    The 2017 finale of Orphan Black that closed the clone saga on Sarah and Helena's terms.
    253pts
14. 14
    Dark: Paradise

    The 2020 finale of Dark that untangled the knot of time loops across three worlds.
    253pts
15. 15
    Star Trek Voyager: Endgame

    The 2001 Voyager finale in which an older Janeway rewrites history to bring the crew home.
    0pts
16. 16
    Star Trek DS9: What You Leave Behind

    The 1999 Deep Space Nine finale that closed the Dominion War and Sisko's journey with the Prophets.
    0pts
17. 17
    The Expanse: Babylon's Ashes

    The 2022 finale of The Expanse that wrapped up the war with Marco Inaros.
    0pts
18. 18
    Legion: Chapter 27

    The 2019 finale of Legion that rewound to the moment David's story began.
    0pts

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