Is UA645 delayed?
Service date: · Scheduled departure date (America/Denver)
Arrived
111 min late
Official source · Updated
Departure
Denver
DEN
Actual
Scheduled 17:53
Sep 18
Arrival
Sioux Falls
FSD
Actual
Scheduled 01:02
Sep 19
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
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DENFSD
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 111 min late
DEN → FSD
- 10 min early
DEN → FSD
- 13 min early
DEN → FSD
- On time
DEN → FSD
- 13 min early
DEN → FSD
Flight history and details
Aug 20, 2026 — Sep 19, 2026
- Observed arrivals
- 22
- Arrivals over 15 minutes late
- 6
- Observed cancellations
- 0
- Observed occurrences
- 25
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 18, 2026Arrived | Denver | Sioux Falls | 111 | |
| Sep 17, 2026Arrived | Denver | Sioux Falls | -10 | |
| Sep 16, 2026Arrived | Denver | Sioux Falls | -13 | |
| Sep 15, 2026Arrived | Denver | Sioux Falls | 0 | |
| Sep 13, 2026Arrived | Denver | Sioux Falls | -13 | |
| Sep 12, 2026Arrived | Denver | Sioux Falls | -21 | |
| Sep 11, 2026Arrived | Denver | Sioux Falls | 43 | |
| Sep 10, 2026Arrived | Denver | Sioux Falls | -8 | |
| Sep 9, 2026Arrived | Denver | Sioux Falls | -18 | |
| Sep 8, 2026Arrived | Denver | Sioux Falls | -18 | |
| Sep 7, 2026Arrived | Denver | Sioux Falls | -18 | |
| Sep 6, 2026Arrived | Denver | Sioux Falls | 84 | |
| Sep 5, 2026Arrived | Denver | Sioux Falls | 0 | |
| Sep 4, 2026Arrived | Denver | Sioux Falls | -15 | |
| Sep 1, 2026Arrived | Denver | Sioux Falls | 14 | |
| Aug 28, 2026Arrived | Denver | Sioux Falls | -5 | |
| Aug 27, 2026Arrived | Denver | Sioux Falls | -6 | |
| Aug 26, 2026Arrived | Denver | Sioux Falls | -13 | |
| Aug 25, 2026Arrived | Denver | Sioux Falls | -9 | |
| Aug 24, 2026Arrived | Denver | Sioux Falls | 270 | |
| Aug 23, 2026Arrived | Denver | Sioux Falls | 45 | |
| Aug 22, 2026Arrived | Denver | Sioux Falls | 50 |