Air Canada
Is AC8421 delayed?
Service date: · Scheduled arrival date; departure time unavailable (UTC)
Arrived
30 min early
Official source · Updated
Departure
Fort McMurray
YMM
Scheduled
Not available
Arrival
Calgary
YYC
Actual
Scheduled 19:35
Sep 16
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Not available
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Actual
YMMYYC
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 30 min early
YMM → YYC
- 13 min early
YMM → YYC
- 11 min early
YMM → YYC
- 5 min early
YMM → YYC
- 18 min late
YMM → YYC
Flight history and details
Aug 18, 2026 — Sep 17, 2026
- Observed arrivals
- 10
- Arrivals over 15 minutes late
- 2
- Observed cancellations
- 2
- Observed occurrences
- 12
Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 16, 2026Arrived | Fort McMurray | Calgary | -30 | |
| Sep 15, 2026Arrived | Fort McMurray | Calgary | -13 | |
| Sep 14, 2026Arrived | Fort McMurray | Calgary | -11 | |
| Sep 13, 2026Arrived | Fort McMurray | Calgary | -5 | |
| Sep 12, 2026Arrived | Fort McMurray | Calgary | 18 | |
| Sep 11, 2026Arrived | Fort McMurray | Calgary | -19 | |
| Sep 10, 2026Cancelled | Fort McMurray | Calgary | Not available | Not available |
| Sep 8, 2026Arrived | Fort McMurray | Calgary | 28 | |
| Sep 7, 2026Cancelled | Fort McMurray | Calgary | Not available | Not available |
| Sep 6, 2026Arrived | Fort McMurray | Calgary | -10 | |
| Sep 5, 2026Arrived | Fort McMurray | Calgary | -19 | |
| Sep 4, 2026Arrived | Fort McMurray | Calgary | -25 |