For the 2025 NFL fantasy football season, most leagues will effectively “start” right around Week 1 of the NFL regular season in early September 2025, but draft and registration activity begins much earlier.

Key 2025 fantasy football dates

  • Major fantasy platforms typically open 2025 league registration in May–June.
  • Draft season usually kicks off right after the July 4th holiday and ramps up through July and August.
  • The Hall of Fame Game on July 31, 2025 is usually seen as the point where draft activity really spikes.
  • Most home‑league drafts happen from August 1 through Labor Day (September 1, 2025).
  • The NFL 2025 regular season opens on Thursday, September 4, 2025 , and standard season‑long fantasy leagues begin scoring in Week 1.

So in practical terms, if you’re wondering “when does fantasy football start 2025?” :

  • Planning and mock drafts: late June to early July.
  • Real drafts: late July through late August, peaking after the Hall of Fame Game.
  • Actual fantasy scoring season: NFL Week 1 starting September 4, 2025.

Information gathered from public forums or data available on the internet and portrayed here.