The Seattle Seahawks, led by quarterback Sam Darnold, face the San Francisco 49ers, led by quarterback Brock Purdy, on Saturday, Jan. 3, 2026 at Levi’s Stadium in Santa Clara, Calif.

Learn which TV channel or how to live stream the NFL Week 18 San Francisco 49ers and Seattle Seahawks game, Saturday, Jan. 3.

The 49ers host the Seahawks in Week 18 with the top spot in NFC on the line. Here's where to watch, stream, the start time and predictions.

Griffin Missant joined The Sporting News in 2025 as a fantasy football intern. He graduated from Grand Valley State University, where he covered the Lakers football program. He has also worked for Sleeper and the Fantasy Trade Room. He has played fantasy for over a decade, and has been passionate about fantasy football ever since.

If you don’t have cable, you’ll need a live TV streaming service to stream Seahawks vs. 49ers for free. DIRECTV is our top pick for watching football live for free — its five-day free trial includes ESPN and ABC. When the trial is over, you’ll pay as low as $49.99/month and gain access to over 90 live channels.

Preview the San Francisco 49ers' NFL Week 18 matchup with the Seahawks, including live stream, TV channel, odds, and game information.

The San Francisco 49ers defeated the Indianapolis Colts 48-27 on Monday night, in their fifth straight win. Purdy threw for 295 yards, finishing with a career-high five touchdowns. Christian McCaffrey rushed 21 times for 117 yards, making six catches for 29 yards and two touchdowns.

The Week 17 Bears vs. 49ers game is airing on NBC. Fans without cable can livestream tonight’s game online using any live TV streaming service that carries the channel.

The Seattle Seahawks will face the San Francisco 49ers in Week 18 of the NFL season on Saturday at Levi's Stadium.

The NFL season continues in Week 18 when the San Francisco 49ers host the Seattle Seahawks on Saturday. Start time, how to watch, stream and NFL TV schedule.