In the previous 19 games against the Bruins in Boston, the Flyers had lost 17 and tied two. Boston had the best regular season record in the league finishing one point ahead of the Flyers. The Bruins also had home ice advantage in the Stanley Cup Final, and were made heavy favorites to win the series. A key confidence-building win late in the regular season saw the Flyers defeating the Bruins 5–3 at the Spectrum in Philadelphia.
Game one In game one, the Flyers nearly scored late in the third period to break a 2–2 tie.
Bobby Orr, having saved the Flyers' shot by blocking the open Boston net with his leg, then took the puck up the ice and scored on a slapshot past goaltender
Bernie Parent with a little over a minute remaining in regulation time to propel the Bruins to a 3–2 win.
Game two Game two saw the Bruins on the verge of a 2–0 series lead when Flyers defenseman
Andre Dupont scored with Parent pulled with less than a minute remaining for an extra attacker to tie the score at 2–2, and
Bobby Clarke scored the 3–2 game winner in overtime. It was the first time the Flyers had beaten the Bruins in Boston Garden since the first ever meeting between the two franchises.
Game three In game three, the Flyers, led by Bernie Parent's play in goal, defeated Boston by a score of 4–1.
Game four Bernie Parent would play well again in game four, stopping 28 shots to help Philadelphia win the game 4–2, and take a 3–1 series lead.
Game five Game five in Boston was a sloppy affair marred by many fights and penalties as Boston easily won to extend the series to a game six in Philadelphia.
Game six On May 19, before a national audience watching the game on
NBC and a raucous Philadelphia crowd, Parent posted an epic 30-save shutout against the Bruins as the Flyers won the game 1–0 on a lone goal by former Bruin draft pick
Rick MacLeish, the series four games to two, and the Stanley Cup. Parent made a spectacular kick save to stop a tremendous slapshot from
Ken Hodge with less than three minutes left to play. The blast was the Bruins' final shot of the series. Parent was named the winner of the
Conn Smythe Trophy as playoff MVP. The Flyers were the first of the 1967 expansion teams in the NHL to win the championship. Coincidentally, the Flyers were the first team to clinch the Stanley Cup at home since the Bruins did so
four years earlier on Orr's famous overtime goal vs. the
St. Louis Blues in Game 4. ==Aftermath==