Air Canada
Is AC4027 delayed?
Service date: · Actual departure date; scheduled departure unavailable (America/Chicago)
Arrived
26 min late
Official source · Updated
Departure
Chicago
ORD
Actual
Sep 16
Arrival
Calgary
YYC
Actual
Scheduled 17:31
Sep 16
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Not available
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Actual
Operating flight: UAL764
ORDYYC
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 26 min late
ORD → YYC
- 14 min late
ORD → YYC
- 8 min early
ORD → YYC
- 27 min late
ORD → YYC
- 29 min late
ORD → YYC
Flight history and details
Aug 17, 2026 — Sep 16, 2026
- Observed arrivals
- 9
- Arrivals over 15 minutes late
- 3
- Observed cancellations
- 0
- Observed occurrences
- 9
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 | Chicago | Calgary | 26 | |
| Sep 15, 2026Arrived | Chicago | Calgary | 14 | |
| Sep 14, 2026Arrived | Chicago | Calgary | -8 | |
| Sep 12, 2026Arrived | Chicago | Calgary | 27 | |
| Sep 10, 2026Arrived | Chicago | Calgary | 29 | |
| Sep 9, 2026Arrived | Chicago | Calgary | 6 | |
| Sep 7, 2026Arrived | Chicago | Calgary | -31 | |
| Sep 5, 2026Arrived | Chicago | Calgary | 1 | |
| Sep 4, 2026Arrived | Chicago | Calgary | 15 |