The Super Bowl 59 participants will be decided in Sunday’s NFC and AFC Championship Games, and new customers using our top online sportsbook promo codes to bet on the contests can collect up to combined $6,550 in welcome bonuses (see below).     NFC, AFC Championship Games: Claim your welcome bonuses, top sportsbook promotions   Sunday’s doubleheader gets underway with the NFC matchup in Philadelphia as the second-seeded Eagles (16-3) host the sixth-seeded Washington Commanders (14-5) at 3 p.m. ET on FOX. That’s followed by the AFC contest from Kansas City as the top-seeded Chiefs (16-2) host the second-seeded Buffalo Bills (15-4) 6:30 p.m. on CBS/Paramount+. It’s the perfect time to take advantage of our best sportsbook promo and bonus code welcome offers. Follow these quick and easy steps to sign up and start betting: > Click on your desired sportsbook promo code link and tap the button that leads to the account creation page. > Fill out the required fields, including the specific code if required. > Make a qualifying, minimum first deposit. > Place your initial bet on the NFC or AFC Championship Game or another qualifying market.    Complete details on each of the offers can be found by following our sportsbook promo code links and reviewing the terms and conditions. Even after you accept a welcome offer, sportsbooks feature value-packed promotions throughout the year, including: Odds and profit boosts: Get in on enhanced odds and payouts on select markets. Bet and get: Garner rewards points and bonuses with each wager you place. Referral bonuses: Invite friends to join a sportsbook via your referral link and you — and often your acquaintance as well — will receive a bonus bet.   Best NFL bets for Sunday’s conference championship games Following are Commanders-Eagles and Bills-Chiefs best bet and game pick recommendations from Gino Buccola of the Daily Racing Form: Eagles -6 The Eagles should be able to dominate in the trenches here. The Commanders lost their starting right guard to injury, and this Philly defense can really make life difficult for Washington rookie QB Jayden Daniels.  The Commanders allowed 200 yards rushing, 8.7 yards per carry to the Detroit Lions last week. Washington still won that game in large part to five Detroit turnovers and the Lions’ injury-wracked defense.  If the Eagles hold on to the ball, they should be able to lean on the run with Saquon Barkley, and hit a few big plays to wide receiver A.J. Brown.  The Eagles’ defense will be much more disciplined after having seen Daniels twice already this year.  Chiefs -1.5   Last weekend, the Chiefs looked like a team whose starters hadn't played for 23 days, but they were still able to get by the Houston Texans.  Tight end Travis Kelce stepped up in the playoffs as always, with game highs of seven catches for 117 yards — more yardage than he had in any game in the regular season. Patrick Mahomes has now won seven straight playoff games.  The Chiefs’ defense is more trustworthy to get a big stop late in a close game, and K.C. has the coaching edge on both sides of the ball.  Buffalo was able to take advantage of the Baltimore’s mistakes last Sunday, but those were more self-inflicted by the Ravens than created by Buffalo.  The Bills are also dealing with some key injuries on the defense coming out of the game, and we see K.C. avenging the 30-21 loss to Buffalo in Week 11. Chiefs in a close one.