Air Canada
Is AC421 delayed?
Service date: · Actual departure date; scheduled departure unavailable (UTC)
Arrived
48 min late
Official source · Updated
Departure
Montreal
YUL
Actual
Sep 13
Arrival
Toronto
YYZ
Actual
Scheduled 18:53
Sep 13
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Not available
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Actual
YULYYZ
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 1 min early
YUL → YYZ
- 9 min late
YUL → YYZ
- 48 min late
YUL → YYZ
- 4 min late
YUL → YYZ
- 10 min late
YUL → YYZ
Flight history and details
Aug 17, 2026 — Sep 16, 2026
- Observed arrivals
- 11
- Arrivals over 15 minutes late
- 5
- Observed cancellations
- 1
- 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 15, 2026Arrived | Montreal | Toronto | -1 | |
| Sep 14, 2026Arrived | Montreal | Toronto | 9 | |
| Sep 13, 2026Arrived | Montreal | Toronto | 48 | |
| Sep 12, 2026Arrived | Montreal | Toronto | 4 | |
| Sep 11, 2026Arrived | Montreal | Toronto | 10 | |
| Sep 10, 2026Cancelled | Montreal | Toronto | Not available | Not available |
| Sep 9, 2026Arrived | Montreal | Toronto | 20 | |
| Sep 8, 2026Arrived | Montreal | Toronto | 10 | |
| Sep 7, 2026Arrived | Montreal | Toronto | 28 | |
| Sep 6, 2026Arrived | Montreal | Toronto | 60 | |
| Sep 5, 2026Arrived | Montreal | Toronto | 5 | |
| Sep 4, 2026Arrived | Montreal | Toronto | 18 |