Is AZ4428 delayed?
Service date: · Scheduled departure date (America/Los_Angeles)
Arrived
39 min early
Official source · Updated
Departure
Las Vegas
LAS
Scheduled
Sep 10
Arrival
Chicago
ORD
Actual
Scheduled 13:00
Sep 10
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Actual
Operating flight: UAL664
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 29 min late
LAS → ORD
- 74 min late
LAS → ORD
- 42 min early
LAS → ORD
- 39 min early
LAS → ORD
- 27 min early
LAS → ORD
Flight history and details
Aug 18, 2026 — Sep 17, 2026
- Observed arrivals
- 6
- Arrivals over 15 minutes late
- 2
- Observed cancellations
- 0
- Observed occurrences
- 6
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 | Las Vegas | Chicago | 29 | |
| Sep 15, 2026Arrived | Las Vegas | Chicago | 74 | |
| Sep 12, 2026Arrived | Las Vegas | Chicago | -42 | |
| Sep 10, 2026Arrived | Las Vegas | Chicago | -39 | |
| Sep 8, 2026Arrived | Las Vegas | Chicago | -27 | |
| Sep 5, 2026Arrived | Las Vegas | Chicago | -44 |