# Route 821 Bishop O'Byrne/McKenzie/Mountain Park — Calgary Transit Bus Schedule, Frequency & Stops Route 821 Bishop O'Byrne/McKenzie/Mountain Park is a Calgary Transit bus route running toward BISHOP O'BYRNE MCKENZIE and toward BISHOP O'BYRNE MCKENZIE. Service operates on Monday–Thursday and Friday days. On Monday–Thursday days, service toward BISHOP O'BYRNE MCKENZIE runs from 3:36 PM to 3:36 PM. All times are scheduled times, effective Jun 3 – Aug 30, 2026. ## Service alerts No alerts currently listed for this route — live alert list at /alerts/, updated every 10 minutes. ## Frequency & span — toward BISHOP O'BYRNE MCKENZIE Route 821 frequency and service span toward BISHOP O'BYRNE MCKENZIE, effective Jun 3 – Aug 30, 2026 | Days | First | Last | Peak | Midday | Evening | | --- | --- | --- | --- | --- | --- | | Monday–Thursday | 3:36 PM | 3:36 PM | — | — | — | | Friday | 1:42 PM | 1:42 PM | — | — | — | ## Frequency & span — toward BISHOP O'BYRNE MCKENZIE Route 821 frequency and service span toward BISHOP O'BYRNE MCKENZIE, effective Jun 3 – Aug 30, 2026 | Days | First | Last | Peak | Midday | Evening | | --- | --- | --- | --- | --- | --- | | Monday–Thursday & Friday | 8:23 AM | 8:23 AM | — | — | — | ## Departures from EB Shawville GA @ Shawville LI SE — toward BISHOP O'BYRNE MCKENZIE ### Monday–Thursday Route 821 toward BISHOP O'BYRNE MCKENZIE — departures from EB Shawville GA @ Shawville LI SE, Monday–Thursday, effective Jun 3 – Aug 30, 2026 | Hour | Departures | | --- | --- | | 3 PM | 3:36 | All departures (Monday–Thursday): 3:36 PM ### Friday Route 821 toward BISHOP O'BYRNE MCKENZIE — departures from EB Shawville GA @ Shawville LI SE, Friday, effective Jun 3 – Aug 30, 2026 | Hour | Departures | | --- | --- | | 1 PM | 1:42 | All departures (Friday): 1:42 PM ## Departures from EB McKenzie DR @ McKenzie Lake BV SE — toward BISHOP O'BYRNE MCKENZIE ### Monday–Thursday & Friday Route 821 toward BISHOP O'BYRNE MCKENZIE — departures from EB McKenzie DR @ McKenzie Lake BV SE, Monday–Thursday & Friday, effective Jun 3 – Aug 30, 2026 | Hour | Departures | | --- | --- | | 8 AM | 8:23 | All departures (Monday–Thursday & Friday): 8:23 AM ## Stops served — toward BISHOP O'BYRNE MCKENZIE 3 stops, in order of travel: 1. [Stop 2164 — EB Shawville GA @ Shawville LI SE](https://calgarytransittimes.com/stops/2164/) 1. [Stop 7039 — EB McKenzie DR @ McKenzie Lake BV SE](https://calgarytransittimes.com/stops/7039/) 1. [Stop 8436 — SB McKenzie Lake BV @ Mountain Park DR SE](https://calgarytransittimes.com/stops/8436/) ## Stops served — toward BISHOP O'BYRNE MCKENZIE 18 stops, in order of travel: 1. [Stop 7039 — EB McKenzie DR @ McKenzie Lake BV SE](https://calgarytransittimes.com/stops/7039/) 1. [Stop 7040 — EB McKenzie DR @ McKenna CR SE](https://calgarytransittimes.com/stops/7040/) 1. [Stop 7041 — EB McKenzie DR @ McKerrell CL SE](https://calgarytransittimes.com/stops/7041/) 1. [Stop 7042 — NB McKenzie DR @ McKerrell WY SE](https://calgarytransittimes.com/stops/7042/) 1. [Stop 7045 — NB McKenzie Lake WY @ McKenzie DR SE](https://calgarytransittimes.com/stops/7045/) 1. [Stop 7046 — NB McKenzie Lake WY @ McKenzie Lake MR SE](https://calgarytransittimes.com/stops/7046/) 1. [Stop 7047 — NB McKenzie Lake WY @ 1000McKenzie Lake BA SE](https://calgarytransittimes.com/stops/7047/) 1. [Stop 7048 — WB McKenzie LakeWY @ 500 McKenzie Lake BA SE](https://calgarytransittimes.com/stops/7048/) 1. [Stop 6582 — WB McKenzie Lake BV @ Mount McKenzie WY SE](https://calgarytransittimes.com/stops/6582/) 1. [Stop 7043 — SB McKenzie Lake BV @ McKenzie Lake GD SE](https://calgarytransittimes.com/stops/7043/) 1. [Stop 7044 — WB Mountain Park DR @ 100 Mount Victoria PL SE](https://calgarytransittimes.com/stops/7044/) 1. [Stop 7049 — SB Mountain Park DR @ Mount Belcher PL SE](https://calgarytransittimes.com/stops/7049/) 1. [Stop 7050 — SB Mountain Park DR @ Mount Norquay GA SE](https://calgarytransittimes.com/stops/7050/) 1. [Stop 7051 — EB Mountain Park DR @ Mount Kidd RD SE](https://calgarytransittimes.com/stops/7051/) 1. [Stop 8436 — SB McKenzie Lake BV @ Mountain Park DR SE](https://calgarytransittimes.com/stops/8436/) 1. [Stop 4163 — SB McKenzie Lake BV @ McKenzie Meadows DR SE](https://calgarytransittimes.com/stops/4163/) 1. [Stop 9299 — EB Shawville GA @ W. of Shawville LI SE](https://calgarytransittimes.com/stops/9299/) 1. [Stop 2164 — EB Shawville GA @ Shawville LI SE](https://calgarytransittimes.com/stops/2164/) ## Frequently asked questions ### What time is the first and last Route 821 bus toward BISHOP O'BYRNE MCKENZIE? On Monday–Thursday days the first bus toward BISHOP O'BYRNE MCKENZIE leaves EB Shawville GA @ Shawville LI SE at 3:36 PM and the last at 3:36 PM. ### What time is the first and last Route 821 bus toward BISHOP O'BYRNE MCKENZIE? On Monday–Thursday & Friday days the first bus toward BISHOP O'BYRNE MCKENZIE leaves EB McKenzie DR @ McKenzie Lake BV SE at 8:23 AM and the last at 8:23 AM. ### Does Route 821 run on Sundays? No — Route 821 has no scheduled Sunday service in the current schedule period. --- Contains information licensed under the [Open Government Licence – City of Calgary](https://data.calgary.ca/stories/s/u45n-7awa). Independent site, not affiliated with or endorsed by Calgary Transit or The City of Calgary — official info at [calgarytransit.com](https://www.calgarytransit.com). Schedule data from the City of Calgary GTFS feed published Jun 3, 2026, valid Jun 3 – Aug 30, 2026.