Mike Richards scored two power-play goals in the third period to pull the Kings within one after Chicago outplayed the Stanley Cup champions in the opening 40 minutes and built a 3-0 lead.
But the Blackhawks and goalie Ray Emery hung on.
"The guys wanted to get a good start, a good jump on LA," Seabrook said. "Ray made the big saves when he needed to."
The Blackhawks' start to the season is beginning to reach historical proportions in more ways than one.
Anaheim won the Stanley Cup in 2007 after its record-setting points start. The 1984-85 Oilers and Montreal, which opened with 14 straight in 1943-44, also won the Cup in those seasons.
The Blackhawks in 2010 won their first Stanley Cup since 1961.
Toews, Chicago's captain, says the Blackhawks aren't getting ahead of themselves.
"We're 15 games into the season," Toews said. "What's important to us is getting home-ice advantage, making the playoffs. Those are our goals. Once you get there, the real season starts.
"When you get to that point, no one really cares or remembers those streaks at the start of the season."
Emery, Chicago's backup, made 25 saves.
In other games *
At Buffalo, defenseman Paul Martin scored with 2:04 left to lift the Pittsburgh Penguins to a 4-3 win over the Sabres.
* At New York, Derek Stepan's power-play goal early in the third snapped a tie and lifted the Rangers past Washington, 2-1.
* At St. Paul, Minn., Dany Heatley, Jason Zucker and Torrey Mitchell all scored in the second period to rally the Minnesota Wild over Detroit, 3-2.
* At Winnipeg, Brad Marchand scored 36 seconds into the third period to lift Boston to a 3-2 win over the Jets.
* At Dallas, Steve Begin, Matt Stajan and Roman Horak each scored their first goals of the season in the third period and Calgary overcame a two-goal deficit to beat the Stars, 4-3.
* At Vancouver, T.J. Oshie and Andy McDonald scored shootout goals to lead the St. Louis Blues past the Canucks, 4-3.