Is UA3990 delayed?
No — UA3990 landed in Louisville 15 min early, at 12:53 on Sep 30 (as of Sep 30, 16:53 UTC).
Usually on time: arrived within 15 min of schedule on 27 of the last 27 flights.
15 min early
Official source · Updated
Departure
Houston
IAH
Actual
Scheduled 10:07
Sep 30
Arrival
Louisville
SDF
Actual
Scheduled 13:09
Sep 30
Times shown in airport local time
Service date: · Scheduled departure date (America/Chicago)
Market settled: On time.
Think UA3990 runs late on Oct 1? Delayed is trading at 9¢ — pays out x11.65.
Will United Airlines UAL 3990 from Houston to Louisville arrive on time, be delayed, or be cancelled on Oct 1?Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
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.
- 15 min early
Houston → Louisville
- 5 min early
Houston → Louisville
- 1 min early
Houston → Louisville
- 8 min early
Houston → Louisville
- 20 min early
Houston → Louisville
Is UA3990 usually late?
Observation window: Sep 1, 2026 – Oct 1, 2026
On time means arriving no more than 15 minutes after the scheduled time; late means more than 15 minutes after. Cancelled and diverted flights are counted apart from arrivals. Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
At the airports today
Houston (IAH) departures
- Left more than 15 min late
- 49 of 318
- Cancelled today
- 0
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 30, 2026Arrived | Houston | Louisville | -15 | |
| Sep 29, 2026Arrived | Houston | Louisville | -5 | |
| Sep 28, 2026Arrived | Houston | Louisville | -1 | |
| Sep 27, 2026Arrived | Houston | Louisville | -8 | |
| Sep 26, 2026Arrived | Houston | Louisville | -20 | |
| Sep 25, 2026Arrived | Houston | Louisville | -17 | |
| Sep 24, 2026Arrived | Houston | Louisville | -12 | |
| Sep 23, 2026Arrived | Houston | Louisville | -11 | |
| Sep 22, 2026Arrived | Houston | Louisville | -5 | |
| Sep 21, 2026Arrived | Houston | Louisville | 6 | |
| Sep 20, 2026Arrived | Houston | Louisville | -7 | |
| Sep 19, 2026Arrived | Houston | Louisville | -15 | |
| Sep 18, 2026Arrived | Houston | Louisville | 0 | |
| Sep 17, 2026Arrived | Houston | Louisville | -8 | |
| Sep 16, 2026Arrived | Houston | Louisville | -19 | |
| Sep 15, 2026Arrived | Houston | Louisville | -17 | |
| Sep 14, 2026Arrived | Houston | Louisville | -21 | |
| Sep 13, 2026Arrived | Houston | Louisville | -7 | |
| Sep 12, 2026Arrived | Houston | Louisville | 1 | |
| Sep 11, 2026Arrived | Houston | Louisville | -3 | |
| Sep 10, 2026Arrived | Houston | Louisville | 3 | |
| Sep 9, 2026Arrived | Houston | Louisville | -1 | |
| Sep 8, 2026Arrived | Houston | Louisville | -2 | |
| Sep 7, 2026Arrived | Houston | Louisville | -12 | |
| Sep 6, 2026Arrived | Houston | Louisville | -21 | |
| Sep 5, 2026Arrived | Houston | Louisville | -2 | |
| Sep 4, 2026Arrived | Houston | Louisville | -12 | |
| Sep 3, 2026Cancelled | Houston | Louisville | Not available | Not available |
| Sep 2, 2026Cancelled | Houston | Louisville | Not available | Not available |
| Sep 1, 2026Cancelled | Houston | Louisville | Not available | Not available |
Email me if UA3990 runs late
We email you if your next UA3990 flight in the coming day is more than 15 minutes late, cancelled or diverted. Alerts last 30 days. No account needed.