United Airlines
Is UA3660 delayed?
No, UA3660 landed in Dulles 18 min early, at 07:09 on Nov 13 (as of Nov 13, 12:10 UTC).
Usually on time: arrived within 15 min of schedule on 18 of the last 18 flights.
Each route and date is shown separately. Confirm that both airports match your booking.
18 min early
Official source · Updated
Departure
Louisville
SDF
Actual
Scheduled 06:17
Nov 13
Arrival
Dulles
IAD
Actual
Scheduled 07:28
Nov 13
Times shown in airport local time
Service date: · Scheduled departure date (America/Kentucky/Louisville)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
22 min early
Official source · Updated
Departure
Dulles
IAD
Actual
Scheduled 08:57
Nov 13
Arrival
Philadelphia
PHL
Actual
Scheduled 09:44
Nov 13
Times shown in airport local time
Service date: · Scheduled departure date (America/New_York)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
Also sold as AC3619, AV2084, CM2260
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 22 min early
Dulles → Philadelphia
- 18 min early
Louisville → Dulles
- 9 min early
Dulles → Philadelphia
- 14 min early
Louisville → Dulles
- 10 min early
Dulles → Philadelphia
Is UA3660 usually late?
Period: Oct 15, 2026 – Nov 14, 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. Compares scheduled and actual arrival times. Cancelled and diverted flights are left out. Some flights may be missing.
At the airports today
Dulles (IAD) departures
- Left more than 15 min late
- 13 of 41
- Cancelled today
- 28
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Nov 13, 2026Arrived | Dulles | Philadelphia | -22 | |
| Nov 13, 2026Arrived | Louisville | Dulles | -18 | |
| Nov 12, 2026Arrived | Dulles | Philadelphia | -9 | |
| Nov 12, 2026Arrived | Louisville | Dulles | -14 | |
| Nov 9, 2026Arrived | Dulles | Philadelphia | -10 | |
| Nov 9, 2026Arrived | Louisville | Dulles | -13 | |
| Nov 8, 2026Arrived | Dulles | Philadelphia | -13 | |
| Nov 8, 2026Arrived | Louisville | Dulles | 1 | |
| Nov 6, 2026Arrived | Dulles | Philadelphia | -10 | |
| Nov 6, 2026Arrived | Louisville | Dulles | -16 | |
| Nov 5, 2026Arrived | Dulles | Philadelphia | -3 | |
| Nov 5, 2026Arrived | Louisville | Dulles | -12 | |
| Nov 2, 2026Arrived | Louisville | Dulles | -7 | |
| Nov 1, 2026Arrived | Louisville | Dulles | -13 | |
| Oct 30, 2026Arrived | Louisville | Dulles | -14 | |
| Oct 29, 2026Arrived | Louisville | Dulles | -15 | |
| Oct 26, 2026Arrived | Louisville | Dulles | -8 | |
| Oct 25, 2026Arrived | Louisville | Dulles | -3 |