Is AC4172 delayed?
Service date: · Scheduled departure date (America/Toronto)
Arrived
33 min early
Official source · Updated
Departure
Toronto
YYZ
Actual
Scheduled 10:15
Sep 10
Arrival
Chicago
ORD
Actual
Scheduled 11:21
Sep 10
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Actual
Operating flight: UAL3617
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 154 min late
YYZ → ORD
- 34 min early
YYZ → ORD
- 52 min late
YYZ → ORD
- 40 min early
YYZ → ORD
- 40 min early
YYZ → ORD
Flight history and details
Aug 18, 2026 — Sep 17, 2026
- Observed arrivals
- 12
- Arrivals over 15 minutes late
- 2
- Observed cancellations
- 0
- 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 17, 2026Arrived | Toronto | Chicago | 154 | |
| Sep 16, 2026Arrived | Toronto | Chicago | -34 | |
| Sep 15, 2026Arrived | Toronto | Chicago | 52 | |
| Sep 14, 2026Arrived | Toronto | Chicago | -40 | |
| Sep 13, 2026Arrived | Toronto | Chicago | -40 | |
| Sep 11, 2026Arrived | Toronto | Chicago | -42 | |
| Sep 10, 2026Arrived | Toronto | Chicago | -33 | |
| Sep 9, 2026Arrived | Toronto | Chicago | -42 | |
| Sep 8, 2026Arrived | Toronto | Chicago | -41 | |
| Sep 7, 2026Arrived | Toronto | Chicago | -32 | |
| Sep 6, 2026Arrived | Toronto | Chicago | -37 | |
| Sep 4, 2026Arrived | Toronto | Chicago | -2 |