Losers in tight conference championship games a year ago, they are returning to the final step before the big game in the Big Easy after wins Saturday.
Baltimore took the long, frigid route, rallying at Denver for a 38-35 victory in an AFC divisional playoff. The Ravens will go to either New England, where they lost 23-20 in the conference championship match last January, or Houston. The Patriots and Texans face off Sunday in Foxborough, Mass.
San Francisco took the NFC game at night 45-31 over Green Bay behind the running and passing of quarterback Colin Kaepernick. That gave both coaching Harbaughs victories Saturday: Jim with the 49ers, John with the Ravens.
San Francisco fell in overtime to the New York Giants for the NFC title last year. The Niners will either visit Atlanta or host Seattle in next weekend's championship matchup.
The wild-card Seahawks are at the Falcons in Sunday's early game.
Second-year QB Kaepernick made Jim Harbaugh's decision to stick with him over incumbent Alex Smith during the season look brilliant. He set a playoff mark for the position by rushing for 183 yards, including a 56-yard TD, and threw for 263 yards. Kaepernick hit Michael Crabtree for two scores and Frank Gore rushed for 119 yards.
The AFC West champion Niners (12-4-1) gained 579 yards.
"It feels like we're in the same place," Crabtree said. "Winning that game last year, we're in the same place. It's just what we do the next game. It's all about the next game."
The NFC North-winning Packers (12-6) beat Minnesota in the wild-card round last weekend, but their defense was overmatched at San Francisco.
Aaron Rodgers finished 26 for 39 for 257 with two TDs and an interception.
Ravens 38, Broncos 35, 2 OT
Rookie Justin Tucker's 47-yard field goal 1:42 into the second overtime of the longest playoff game in 26 years advanced the Ravens and kept star linebacker Ray Lewis' career going at least another week.
Earlier this season, the AFC North champ Ravens (12-6) beat the Patriots 31-30 in Baltimore. They lost 43-13 at Houston.
Joe Flacco's 70-yard heave to Jacoby Jones with 31 seconds remaining forced the overtime. Flacco is the only quarterback to win playoff games in each of his first five seasons, and he heads to his third AFC championship match. He also lost to Pittsburgh in the 2008 title game.
"We fought hard to get back to this point and we're definitely proud of being here." Flacco said. "We feel like it's going to take a lot for somebody to come and kick us off that field come the AFC championship game."
Lewis announced before they beat Indianapolis in the wild-card round that this was the last of his 17 pro seasons. It's still going.
"When you look back at it and let the emotions calm down, it will probably be one of the greatest victories in Ravens history," Lewis said. "It's partly because of the way everything was stacked against us coming in."
Peyton Manning lost in his first postseason appearance with the AFC West-winning Broncos (13-4), who had won their last 11 games to earn home-field advantage in the playoffs. They wasted it by giving up long plays, negating a record-setting performance by kick returner Trindon Holliday.
Holliday ran back the second-half kickoff 104 yards for a TD. He went 90 yards with a first-quarter punt return to become the first player to score on one of each in a playoff game.
"He's one of the greatest quarterbacks of all time and for us to come in here and confuse him the way we did, and make the plays we did?" Lewis said. "We gave up two big special teams touchdowns, but the bottom line is, but we kept fighting."
Seahawks (12-5) at Falcons (13-3)
Oddly, there might be more doubts floating around the home team with the spiffy record than the visitors.
While Seattle has won six in a row, erased its reputation as a road flop with three straight away victories - including last week at Washington - and has the league's stingiest defense.
It's NFC South champ Atlanta, 0-3 in the postseason under coach Mike Smith and with Matt Ryan at quarterback, that probably faces more pressure.
"We've been disappointed a few times," said center Todd McClure, a Falcon for 13 years. "I think we've got guys in this locker room who are hungry and ready to get over that hump."
One of them is Tony Gonzalez, the career leader in nearly all receiving categories among tight ends. In 16 pro seasons, Gonzalez never has won a playoff game. And he's said this very likely is his final year in the NFL.
"I'm not going to lie to you," he said. "I really, really, really want to win this game."
To get it, Gonzalez, Ryan and star receivers Julio Jones and Roddy White must contend with the league's most physical defense, a unit that completely shut down the Redskins for three quarters in the 24-14 wild-card win.
"I expect our guys to try to play like they always play," Seattle coach Pete Carroll said. "They don't need to change anything because we're not doing anything different, we're going to try and hang with them, and we'll find out what happens." Texans (13-4) at Patriots (12-4)
Houston's reward for its wild-card win over Cincinnati is a return to trip to Foxborough, where the Texans' late-season spiral began. Houston was in position for home-field advantage in the AFC before being routed 42-14 by the Patriots, then losing twice more in the final three games.
This is only the fourth postseason game in the Texans' 11-season NFL history. The Patriots began winning Super Bowls with Tom Brady before the Texans were born.
AFC South champion Houston must bring the fierce pass rush it often has shown with end J.J. Watt, who led the NFL with 20 1-2 sacks.
"Biggest goal of them all, Super Bowl, and this is a big step for us," Watt said, "and we're really excited about the challenge."
That challenge comes against the NFL's most prolific offense. The Texans and Patriots allowed the same number of points, 331, but AFC East winner New England led the NFL in scoring with 557 points, 34.8 per game.
Brady would surpass Joe Montana for most postseason victories by a quarterback by beating Houston. Brady is 16-6, although he began 10-0.
He isn't looking for a repeat of the Dec. 10 romp.
"Giving us an opportunity to have this game at home, I think that's the important thing about last game," Brady said. "Other than that, this is going to be a whole different game full of our own execution, our ability to try to beat a very good football team that's played well all year."