United Airlines
Is UA5142 delayed?
Service date: · Scheduled departure date (UTC)
Arrived
37 min late
Official source · Updated
Departure
Sacramento
SMF
Actual
Scheduled 18:48
Sep 9
Arrival
Boise
BOI
Actual
Scheduled 20:06
Sep 9
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
SMFBOI
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 8 min late
MGM → SHV
- 60 min late
ORD → SBN
- 17 min late
CLD → PSP
- 7 min late
SHR → ORD
- 19 min early
DEN → COS
Flight history and details
Aug 23, 2026 — Sep 22, 2026
- Observed arrivals
- 7
- Arrivals over 15 minutes late
- 4
- Observed cancellations
- 0
- Observed occurrences
- 7
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 19, 2026Arrived | Montgomery | Shreveport | 8 | |
| Sep 16, 2026Arrived | Chicago | South Bend | 60 | |
| Sep 14, 2026Arrived | Carlsbad | Palm Springs | 17 | |
| Sep 13, 2026Arrived | Sheridan | Chicago | 7 | |
| Sep 10, 2026Arrived | Denver | Colorado Springs | -19 | |
| Sep 9, 2026Arrived | Sacramento | Boise | 37 | |
| Sep 5, 2026Arrived | Chicago | Chicago | 740 |