| | RW | Sent to minors (The Calgary Flames assigned F Walker Duehr to the minors.) |
| | LW | Sent to minors (The Calgary Flames assigned F Jakob Pelletier to the minors.) |
| | G | Sent to minors (The Calgary Flames assigned G Dustin Wolf to the minors.) |
| | G | Called up from minors (The Calgary Flames recalled G Dustin Wolf.) |
| | D | Activated (The Calgary Flames activated D Michael Stone from injured reserve.) |
| | RW | Signed (The Calgary Flames signed F Matthew Coronato.) |
| | D | Sent to minors (The Calgary Flames assigned D Kristians Rubins to the minors.) |
| | D | Traded (The Calgary Flames acquired D Kristians Rubins from Ottawa.) From |
| | RW | Sent to minors (The Calgary Flames sent F Walker Duehr to the minors.) |
| | LW | Sent to minors (The Calgary Flames sent F Jakob Pelletier to the minors.) |
| | RW | Traded (The Arizona Coyotes acquired F Brett Ritchie from Calgary.) To |
| | LW | Traded (The Calgary Flames acquired F Nick Ritchie from Arizona.) From |
| | D | Traded (The Arizona Coyotes acquired D Connor Mackey from Calgary.) To |
| | D | Traded (The Calgary Flames acquired D Troy Stecher from Arizona.) From |
| | D | Placed on Injured Reserve (The Calgary Flames placed D Michael Stone on injured reserve.) |
| | RW | Called up from minors (The Calgary Flames recalled F Walker Duehr.) |
| | D | Called up from minors (The Calgary Flames recalled D Dennis Gilbert from the minors.) |
| | D | Sent to minors (The Calgary Flames assigned D Dennis Gilbert to the minors.) |
| | D | Activated (The Calgary Flames activated D Chris Tanev from injured reserve.) |
| | LW | Called up from minors (The Calgary Flames recalled F Jakob Pelletier.) |
| | D | Called up from minors (The Calgary Flames recalled D Dennis Gilbert.) |
| | RW | Sent to minors (The Calgary Flames sent F Walker Duehr to the minors.) |
| | D | Sent to minors (The Calgary Flames sent D Dennis Gilbert to the minors.) |
| | LW | Sent to minors (The Calgary Flames sent F Jakob Pelletier to the minors.) |
| | D | Placed on Injured Reserve (The Calgary Flames placed D Chris Tanev on injured reserve.) |
| | RW | Activated (The Calgary Flames activated F Brett Ritchie from injured reserve.) |
| | D | Called up from minors (The Calgary Flames recalled D Dennis Gilbert.) |
| | LW | Sent to minors (The Calgary Flames assigned D Radim Zohorna to the minors.) |
| | LW | Called up from minors (The Calgary Flames recalled F Radim Zohorna from the minors.) |
| | LW | Sent to minors (The Calgary Flames assigned F Radim Zohorna to the minors.) |
| | RW | Placed on Injured Reserve (The Calgary Flames placed F Brett Ritchie on injured reserve.) |
| | RW | Called up from minors (The Calgary Flames recalled F Walker Duehr from the minors.) |
| | LW | Called up from minors (The Calgary Flames recalled F Jakob Pelletier from the minors.) |
| | RW | Called up from minors (The Calgary Flames recalled F Walker Duehr from the minors.) |
| | LW | Called up from minors (The Calgary Flames recalled F Jakob Pelletier from the minors.) |
| | LW | Called up from minors (The Calgary Flames recalled F Radim Zohorna from the minors.) |
| | LW | Called up from minors (The Calgary Flames recalled F Radim Zohorna from the minors.) |
| | LW | Sent to minors (The Calgary Flames assigned F Radim Zohorna to the minors.) |
| | D | Sent to minors (The Calgary Flames assigned D Dennis Gilbert to the minors.) |
| | LW | Called up from minors (The Calgary Flames recalled F Radim Zohorna.) |
| | D | Sent to minors (The Calgary Flames assigned D Nick DeSimone to the minors.) |
| | C | Sent to minors (The Calgary Flames assigned F Matthew Phillips to the minors.) |
| | D | Called up from minors (The Calgary Flames recalled D Nick DeSimone.) |
| | D | Placed on Injured Reserve (The Calgary Flames placed D Dennis Gilbert on injured reserve.) |
| | D | Activated (The Calgary Flames activated D Chris Tanev from injured reserve.) |
| | LW | Sent to minors (The Calgary Flames assigned F Radim Zohorna to the minors.) |
| | D | Called up from minors (The Calgary Flames recalled D Dennis Gilbert.) |
| | D | Placed on Injured Reserve (The Calgary Flames placed D Christopher Tanev on injured reserve.) |
| | LW | Called up from minors (The Calgary Flames recalled F Radim Zohorna from the minors.) |
| | C | Called up from minors (The Calgary Flames recalled F Matthew Phillips from the minors.) |
| | LW | Called up from minors (The Calgary Flames recalled F Radim Zohorna from the minors.) |
| | C | Called up from minors (The Calgary Flames recalled F Matthew Phillips from the minors.) |
| | LW | Sent to minors (The Calgary Flames assigned F Radim Zohorna to the minors.) |
| | C | Sent to minors (The Calgary Flames assigned F Matthew Phillips to the minors.) |
| | LW | Called up from minors (The Calgary Flames recalled F Radim Zohorna from the minors.) |
| | LW | Called up from minors (The Calgary Flames recalled F Radim Zohorna from the minors.) |
| | C | Waived (The Calgary Flames waived F Kevin Rooney.) |
| | C | Called up from minors (The Calgary Flames recalled F Matthew Phillips.) |
| | D | Sent to minors (Calgary-AHL) |
| | D | Called up from minors (from Calgary-AHL) |
| | D | Sent to minors (Calgary-AHL) |
| | D | Sent to minors (Calgary-AHL) |
| | D | Called up from minors (from Calgary-AHL) |
| | D | Called up from minors (from Calgary-AHL) |
| | LW | Signed (Three-year, entry-level contract) |
| | G | Contract extended (Two-year contract extension) |
| | C | Signed with European team (SCL Tigers-Switzerland) |
| | D | Sent to minors (Calgary-AHL) |
| | C | Waived (Signed) |
| | C | Sent to minors (Calgary-AHL) |
| | D | Signed as Free Agent (One-year contract) |
| | D | Waived (Signed) |
| | LW | Sent to minors (Calgary-AHL) |
| | D | Sent to minors (Calgary-AHL) |
| | LW | Waived (Signed) |
| | D | Waived (Signed) |
| | D | Waived (Signed) |
| | LW | Sent to minors (Calgary-AHL) |
| | D | Contract extended (Eight-year contract extension) |
| | G | Sent to minors (Calgary-AHL) |
| | C | Released (Signed) |
| | LW | Released (Signed) |
| | D | Sent to minors (Calgary-AHL) |
| | G | Sent to minors (Calgary-AHL) |
| | LW | Claimed off waivers (Signed) |
| | D | Sent to minors (Calgary-AHL) |
| | C | Sent to minors (Calgary-AHL) |
| | C | Sent to minors (Calgary-AHL) |
| | D | Sent to minors (Calgary-AHL) |
| | LW | Sent to minors (Calgary-AHL) |
| | D | Sent to minors (Calgary-AHL) |
| | RW | Sent to minors (Calgary-AHL) |
| | RW | Sent to minors (Calgary-AHL) |
| | D | Waived (Signed) |
| | C | Waived (Signed) |
| | C | Waived (Signed) |
| | D | Waived (Signed) |
| | C | Sent to minors (Calgary-AHL) |
| | LW | Released (Signed) |
| | G | Waived (Signed) |
| | D | Sent to minors (Calgary-AHL) |
| | C | Sent to minors (Calgary-AHL) |
| | LW | Waived (Signed) |
| | LW | Sent to minors (Calgary-AHL) |
| | C | Released (Signed) |
| | D | Released (Signed) |
| | C | Released (Signed) |
| | D | Released (Signed) |
| | LW | Released (Signed) |
| | G | Sent to minors (Calgary-AHL) |
| | C | Released (Signed) |
| | D | Released (Signed) |
| | G | Released (Signed) |
| | C | Sent to minors (Calgary-AHL) |
| | C | Sent to minors (Calgary-AHL) |
| | LW | Assigned to Junior Club (Seattle-WHL) |
| | LW | Assigned to Junior Club (Tri-City-WHL) |
| | C | Released (Signed) |
| | D | Released (Signed) |
| | D | Released (Signed) |
| | LW | Released (Signed) |
| | D | Assigned to Junior Club (Halifax-QMJHL) |
| | D | Assigned to Junior Club (Moose Jaw-WHL) |
| | C | Assigned to Junior Club (Sherbrooke-QMJHL) |
| | RW | Assigned to Junior Club (Ottawa-OHL) |
| | C | Invited to Training Camp (Signed) |
| | C | Invited to Training Camp (Signed) |
| | LW | Invited to Training Camp (Signed) |
| | C | Invited to Training Camp (Signed) |
| | G | Invited to Training Camp (Signed) |
| | LW | Invited to Training Camp (Signed) |
| | D | Invited to Training Camp (Signed) |
| | C | Re-Signed (Two-year, two-way contract) |
| | D | Invited to Training Camp (Signed) |
| | LW | Invited to Training Camp (Signed) |
| | D | Invited to Training Camp (Signed) |
| | RW | Signed as Free Agent (One-year contract) |
| | D | Invited to Training Camp (Signed) |
| | D | Invited to Training Camp (Signed) |
| | C | Invited to Training Camp (Signed) |
| | LW | Invited to Training Camp (Signed) |
| | D | Invited to Training Camp (Signed) |
| | C | Invited to Training Camp (Signed) |
| | C | Signed as Free Agent (Seven-year contract) |
| | C | Traded (w/ '25 1st-rd pick for future cons.) To |
| | LW | Contract extended (Eight-year contract extension) |
| | C | Re-Signed (One-year, two-way contract) |
| | LW | Re-Signed (Three-year contract) |
| | D | Re-Signed (Two-year contract) |
| | C | Re-Signed (One-year, two-way contract extension) |
| | LW | Re-Signed (Eight-year contract) |
| | C | Traded (w/ Huberdeau, Weegar, 1 for Tkachuk, 4) From |
| | D | Traded (w/ Huberdeau, Schwindt, 1 for Tkachuk, 4) From |
| | LW | Traded (w/ Weegar, Schwindt, 1 for Tkachuk, 4) From |
| | LW | Traded (w/ 4 for Huberdeau, Weegar, Schwindt, 1) To |
| | C | Signed as Free Agent (One-year, two-way contract) |
| | D | Signed as Free Agent (Two-year, two-way contract) |
| | D | Became Unrestricted Free Agent (Signed) |
| | D | Became Unrestricted Free Agent (Not tendered a qualifying offer) |
| | D | Became Unrestricted Free Agent (Signed) |
| | C | Signed as Free Agent (Two-year contract) |
| | C | Became Unrestricted Free Agent (Signed) |
| | LW | Signed as Free Agent (One-year, two-way contract) |
| | D | Became Unrestricted Free Agent (Signed) |
| | G | Became Unrestricted Free Agent (Signed) |
| | D | Signed as Free Agent (One-year, two-way contract) |
| | D | Became Unrestricted Free Agent (Signed) |
| | C | Became Unrestricted Free Agent (Signed) |
| | D | Signed as Free Agent (Two-year, two-way contract) |
| | RW | Became Unrestricted Free Agent (Signed) |
| | C | Became Unrestricted Free Agent (Signed) |
| | D | Re-Signed (One-year, two-way contract) |
| | C | Became Unrestricted Free Agent (Signed) |
| | C | Became Unrestricted Free Agent (Signed) |
| | D | Signed as Free Agent (Two-year, two-way contract) |
| | C | Became Unrestricted Free Agent (Signed) |
| | C | Signed as Free Agent (One-year contract) |
| | G | Signed as Free Agent (One-year, two-way contract) |
| | D | Became Unrestricted Free Agent (Signed) |
| | D | Became Unrestricted Free Agent (Signed) |
| | D | Signed as Free Agent (Two-year contract) |
| | LW | Became Unrestricted Free Agent (Signed) |
| | C | Became Unrestricted Free Agent (Signed) |
| | G | Became Unrestricted Free Agent (Not tendered a qualifying offer) |
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