Is UA645 delayed?
No delay reported yet — UA645 is scheduled to leave Denver at 18:03 on Sep 27 and reach Sioux Falls at 01:15 (Sep 28) (as of Sep 27, 07:26 UTC). Over its last 23 recorded arrivals, 4 landed more than 15 min late.
No live update yet
Showing the published schedule until live times are reported.
Update time unavailable
Departure
Denver
DEN
Scheduled
Sep 27
Arrival
Sioux Falls
FSD
Scheduled
Sep 28
Times shown in airport local time
Service date: · Scheduled departure date (America/Denver)
Think UA645 runs late today? Delayed is trading at 33¢ — pays out x2.98.
Will United Airlines UAL 645 from Denver to Sioux Falls arrive on time, be delayed, or be cancelled on Sep 27?Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Market prices express trading expectations about a contract’s stated threshold. They do not confirm airline status. The linked market shows its terms and activity.
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- On schedule (5 min behind)
DEN → FSD
- 57 min late
DEN → FSD
- 5 min early
DEN → FSD
- 9 min early
DEN → FSD
- 15 min early
DEN → FSD
Flight history and details
Aug 28, 2026 — Sep 27, 2026
- Observed arrivals
- 23
- Arrivals over 15 minutes late
- 4
- 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 26, 2026Arrived | Denver | Sioux Falls | 5 | |
| Sep 25, 2026Arrived | Denver | Sioux Falls | 57 | |
| Sep 23, 2026Arrived | Denver | Sioux Falls | -5 | |
| Sep 22, 2026Arrived | Denver | Sioux Falls | -9 | |
| Sep 21, 2026Arrived | Denver | Sioux Falls | -15 | |
| Sep 20, 2026Arrived | Denver | Sioux Falls | -13 | |
| Sep 19, 2026Arrived | Denver | Sioux Falls | 2 | |
| 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 |