18 year old Dean Winchester, his father, & his younger brother get a surprise when an older version of Sam appears in their motel room. Then he disappears, & an older version than the last appears. & it keeps repeating, over & over again, & their glimpses into the future show no sign of stopping. Not your usual time travel fic. Chapters 1-25: Part I 'For So Many Years Have Gone'

This an alternative ending to supernatural season 11. To defeat the Darkness, Chuck sends Team Free Will back to the very beginning, November 2nd 1983 in a different manner of time travel. However, before sending them back, he warns them of a new unparalleled threat. One that even the Darkness can't compare to.

Sam was a having a tough day as it is, trying to cure your demon brother while he's trying to kill you wasn't enough now he's in 2006 with his brother just after their father deal and death; before Bobby's,Jo's , Ellen's, Ash's and many more deaths; before Cas and the angels; before the cage; before the apocalypse; before Dean's deals. Will Sam and Dean try to change the future ?

With their newly acquired knowledge of the Tablet Trials, the Winchesters travel back in time with a newly human Castiel to a critical point in their history to prevent the Apocalypse from ever happening, making deals with angels and demons alike to lay the groundwork for their plans. Will they change fate or lose themselves in the past?

Waking up on a motel floor with a gun to your head is not particularly comforting, let me tell you. Especially when that gun belongs to your dead father, and you somehow made your way to 1993 overnight. OR In which Sam wakes up in 1993 and decides that Time Travel sucks. Set in early season 8 (after Southern Comfort), back when the brothers were still fighting. Rated T for language

Set after 1.16, Shadow. In an attempt to save a disillusioned hunter from himself, Dean and Sam are caught in a spell that sends them to 1870 Texas. Surviving the old west is hard enough. Escaping it could prove to be impossible. T for language, themes.

The Winchesters are notorious for doing world-breaking things when they're separated. Something like Sam being in Hell isn't going to stop him when he hears Dean, but slipping the Cage may have had consequences. Like finding himself back years before the Apocalypse started, with Lucifer as a constant companion. Gen. Time/Dimension Travel. Sam&Lucifer, Sam&Dean. Hell Damage.

A summoning ritual backfires. Instead of drawing the restless spirit of Cpl. Leamon Griffith to them, Sam and Dean find themselves catapulted to the side of the young Union soldier, just hours before he goes MIA – in 1863. Set S3 after BDABR.

Sam is concussed and hallucinating; Dean is crippled and drugged to the gills. It is, in short, about the worst possible moment for sudden, unexpected time travel. [Teenchesters/season seven]

If you could do it all over again, what would you change, who would you sacrifice, who would you save? Dean wakes up in 2007 with over a decade worth of memories that haven't happened yet and choices to make that will change the world forever. (Spoilers through season 11, time travel)

A hunt for a witch's coven goes very wrong and Sam must pay the price. Lost in time Sam struggles to survive in a violent, ancient world while Dean leads a search for his missing brother.

Things were bad enough when Crowley invoked a spell to force the Winchesters to face their past—literally. But now a rift has been torn in time and Lucifer is getting involved—just another day in the life of Sam and Dean. "Have fun with this one, boys!" (Or: Winchester meets Weechester. Time travel) (DISCONTINUED)

AU story. In 2010, an attempt to change the course of Destiny goes wrong, very badly wrong. Castiel, Dean and Sam are thrown into a world and a time of savagery and danger, a world where legend and myth were born. There is no escaping what each must face, but in such a different world, they might each find what they are seeking. No slash, no spoilers.

Cas messes up his angel mojo leaving Dean stranded in the future. Lucky for him, there's a friendly stranger, Sam, that seems happy to help. Unrelated Wincest

Sam, in a last ditch effort to save his brother and the world, steals Lucifer's power and throws himself into the past. Just one problem though...heaven felt it and now he has to worry about both sides trying to stop him! Can Sam rewrite his fate as Lucifer's vessel before the devil breaks free again, or will the world fall twice? Destiel (with Puppy Cas!) and Sabriel later on

John Winchester knelt before his four-year old son, heart pounding. "Dean, where's your brother? Where's Sammy?" He asked desperately, grasping the scorched blue baby blanket in his hand as his house burned down behind him. "Who's Sammy?" The tearful child replied in confusion. Gabriel watched, invisible to them, the sleeping infant safe in his arms...

After being attacked by a mysterious enemy, Sam finds himself sent back to 1997. While he is stuck in his fourteen year old body, fourteen year old Sam is stuck in adult Sam's body.

Chasing down the Yellow-Eyed Demon Azazel, as well as Seth (Wesson?), everything is coming to a head for John, Dean, and Sammy. Fourth in the Fraternity series.

John and his boys are meeting Seth at Singer Salvage to see what they can do about a common enemy. But demon plans are hard to escape, and Winchesters are very good at keeping secrets. Third in the Fraternity series.

John runs into something he doesn't expect on a hunt and calls Seth for backup. But Seth is determined to get between John and his sons, not to mention the hints he's been dropping about his past. Second in the Fraternity series.

John Winchester is hunting a witch — at least a witch is his best lead so far — in Missouri while his boys are on spring break. When he gets into trouble, a new hunter comes to help, a man he's never met before with floppy hair and familiar eyes. First in the Fraternity series.

God takes Dean back in time to save Sam's life. Dean learns the real meaning of free will. Can Dean save Sam by changing the past?

When Dean goes to sell his soul at the crossroads to bring Sam back, someone else steps in to negotiate the deal. Cas did get a sign and it sent him off into the past to change things. AU from The Man Who Would be King and All Hell Breaks Loose.

A time-traveling mishap will make two children and a fledgling realize that the unexpected can sometimes be a good thing.

God offers Sam a way to fix everything; he is to go back in time and stop the apocalypse before it can start. Now he has to deal with three angels being randomly overprotective, stop the world from ending, and not get John and Dean suspicious. At 12. Fun.