Cantor Technology released the spreads for every NFL game in Weeks 1-16. Below are the lines for Buffalo's games.
Week 17 is excluded because of high variance caused by potential playoff seeding, QBs sitting out the final week or playing partial games, etc.
Here is the list for every game.
Week 1
Jets at Bills (-6)
Week 2
Bills at Panthers (-3.5)
Week 3
Broncos at Bills (-1)
Week 4
Bills at Falcons (-7.5)
Week 5
Bills at Bengals (-3.5)
Week 6
BYE
Week 7
Buccaneers at Bills (-1.5)
Week 8
Raiders (-1.5) at Bills
Week 9
Bills (-1.5) at Jets
Week 10
Saints at Bills (-2)
Week 11
Bills at Chargers (-2)
Week 12
Bills at Chiefs (-6)
Week 13
Patriots (-7) at Bills
Week 14
Colts at Bills (-1.5)
Week 15
Dolphins at Bills (-1.5)
Week 16
Bills at Patriots (-11.5)