The Buffalo Bills vs. Miami Dolphins game on Thursday, September 18, 2025, is available to watch live primarily on Amazon Prime Video. The game, part of Thursday Night Football, starts at 8:15 p.m. ET. Fans can stream the game on Prime Video nationally, and some fans in the local markets of Miami and Buffalo can also watch on their respective local TV stations—CBS 4 (WFOR) in Miami and ABC 7 (WKBW) in Buffalo. Additionally, the game is streaming for free on Twitch. Radio broadcasts are available on SiriusXM channels for both teams and the national feed as well.

Summary:

• National streaming: Amazon Prime Video (subscription required)
• Free streaming: Twitch (national)
• Local TV (in Miami and Buffalo markets): CBS 4 (Miami), ABC 7 (Buffalo)
• Radio: SiriusXM with team and national channels

Thus, the best way to watch the Bills vs. Dolphins game is through Amazon Prime Video, Twitch (free online), or local TV if located in the team's markets.