United Airlines
Is UA8140 delayed?
Service date: · Scheduled departure date (America/Los_Angeles)
Arrived
26 min late
Official source · Updated
Departure
San Francisco
SFO
Actual
Scheduled 17:11
Sep 20
Arrival
Dallas-Fort Worth
DFW
Actual
Scheduled 22:18
Sep 20
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 26 min late
SFO → DFW
- 38 min late
ORD → IAH
- 4 min late
DEN → SNA
- 19 min late
SFO → AUS
- 49 min late
ORD → SAT
Flight history and details
Aug 24, 2026 — Sep 23, 2026
- Observed arrivals
- 9
- Arrivals over 15 minutes late
- 4
- 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 20, 2026Arrived | San Francisco | Dallas-Fort Worth | 26 | |
| Sep 19, 2026Arrived | Chicago | Houston | 38 | |
| Sep 17, 2026Arrived | Denver | Santa Ana | 4 | |
| Sep 17, 2026Arrived | San Francisco | Austin | 19 | |
| Sep 15, 2026Arrived | Chicago | San Antonio | 49 | |
| Sep 14, 2026Arrived | Denver | Palm Springs | 12 | |
| Sep 13, 2026Arrived | Chicago | Santa Ana | -2 | |
| Sep 12, 2026Arrived | Denver | Norfolk | -13 | |
| Sep 6, 2026Arrived | Dulles | Sacramento | -15 |