Is UAL4660 delayed?
Service date: · Scheduled departure date (UTC)
Arrived
13 min early
Official source · Updated
Departure
Helena
HLN
Actual
Scheduled 12:45
Sep 7
Arrival
Denver
DEN
Actual
Scheduled 08:17
Sep 7
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
HLNDEN
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 29 min early
HLN → DEN
- <1 min early
HLN → DEN
- 28 min early
HLN → DEN
- 41 min early
HLN → DEN
- 27 min early
HLN → DEN
Flight history and details
Aug 19, 2026 — Sep 18, 2026
- Observed arrivals
- 11
- Arrivals over 15 minutes late
- 0
- Observed cancellations
- 0
- Observed occurrences
- 11
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 | Helena | Denver | -29 | |
| Sep 16, 2026Arrived | Helena | Denver | 0 | |
| Sep 14, 2026Arrived | Helena | Denver | -28 | |
| Sep 12, 2026Arrived | Helena | Denver | -41 | |
| Sep 11, 2026Arrived | Helena | Denver | -27 | |
| Sep 10, 2026Arrived | Helena | Denver | -28 | |
| Sep 9, 2026Arrived | Helena | Denver | -24 | |
| Sep 7, 2026Arrived | Helena | Denver | -13 | |
| Sep 6, 2026Arrived | Helena | Denver | -4 | |
| Sep 5, 2026Arrived | Helena | Denver | -24 | |
| Sep 4, 2026Arrived | Helena | Denver | -19 |