Hathaway posted an assist during Thursday's 4-1 loss to Montreal.
Hathaway scored his first game-winning goal of the season in Thursday's 2-1 victory over the Panthers.
Hathaway recorded a short-handed goal and a team-high five hits in Thursday's 4-1 win over the Canucks.
Hathaway scored a goal on two shots versus Carolina on Monday.
Hathaway received a $5,000 fine from the NHL Department of Player Safety on Friday for kneeing Zach Werenski of the Blue Jackets on Thursday.
Hathaway signed a two-year, $4.75 million contract with the Flyers on Saturday.
Hathaway registered one assist and eight hits in Sunday's 6-2 win over the Panthers.
Hathaway scored the game-winning goal in Saturday's 3-2 victory over Detroit.
Hathaway and Dmitry Orlov was traded from the Capitals to the Bruins on Thursday in exchange for Craig Smith, a 2023 first-round pick, a 2025 second-round pick and a 2024 third-round pick.
Hathaway will be a healthy scratch for Thursday's game against Anaheim for trade-related reasons.