Is AC421 delayed?
No delay reported — AC421 is expected in Toronto at 18:49 on Sep 28, 4 min early (last reported Sep 28, 22:05 UTC). Over its last 20 recorded arrivals, 7 landed more than 15 min late.
4 min early
This update may be out of date. Check with your airline.
Official source · Updated
Departure
Montreal
YUL
Actual
Sep 28
Arrival
Toronto
YYZ
Estimated
Scheduled 18:53
Sep 28
Times shown in airport local time
Service date: · Actual departure date; scheduled departure unavailable (America/Toronto)
Flight details
Departure · UTC
- Scheduled
- Not available
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Actual
- Not available
Market prices express trading expectations about a contract’s stated threshold. They do not confirm airline status. The linked market shows its terms and activity.
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- On schedule (7 min behind)
Montreal → Toronto
- 101 min late
Montreal → Toronto
- On schedule (4 min behind)
Montreal → Toronto
- On schedule (3 min behind)
Montreal → Toronto
- On schedule (10 min behind)
Montreal → Toronto
Flight history and details
Aug 29, 2026 — Sep 28, 2026
- Observed arrivals
- 20
- Arrivals over 15 minutes late
- 7
- Observed cancellations
- 3
- Observed occurrences
- 24
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 27, 2026Arrived | Montreal | Toronto | 7 | |
| Sep 26, 2026Arrived | Montreal | Toronto | 101 | |
| Sep 24, 2026Arrived | Montreal | Toronto | 4 | |
| Sep 23, 2026Arrived | Montreal | Toronto | 3 | |
| Sep 22, 2026Arrived | Montreal | Toronto | 10 | |
| Sep 21, 2026Arrived | Montreal | Toronto | 9 | |
| Sep 20, 2026Arrived | Montreal | Toronto | 26 | |
| Sep 19, 2026Arrived | Montreal | Toronto | -10 | |
| Sep 18, 2026Cancelled | Montreal | Toronto | Not available | Not available |
| Sep 17, 2026Cancelled | Montreal | Toronto | Not available | Not available |
| Sep 16, 2026Arrived | Montreal | Toronto | 12 | |
| 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 |