Is UA3998 delayed?
Service date: · Scheduled departure date (UTC)
Arrived
17 min early
Official source · Updated
Departure
Columbus
CMH
Actual
Scheduled 14:41
Sep 16
Arrival
Dulles
IAD
Actual
Scheduled 11:50
Sep 16
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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CMHIAD
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 17 min early
CMH → IAD
- 24 min early
CMH → IAD
- 14 min early
CMH → IAD
- 10 min late
CMH → IAD
- 66 min late
CMH → IAD
Flight history and details
Aug 17, 2026 — Sep 16, 2026
- Observed arrivals
- 12
- Arrivals over 15 minutes late
- 2
- Observed cancellations
- 2
- Observed occurrences
- 15
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 16, 2026Arrived | Columbus | Dulles | -17 | |
| Sep 15, 2026Arrived | Columbus | Dulles | -24 | |
| Sep 14, 2026Arrived | Columbus | Dulles | -14 | |
| Sep 13, 2026Arrived | Columbus | Dulles | 10 | |
| Sep 12, 2026Arrived | Columbus | Dulles | 66 | |
| Sep 11, 2026Arrived | Columbus | Dulles | -9 | |
| Sep 10, 2026Arrived | Columbus | Dulles | -22 | |
| Sep 9, 2026Arrived | Columbus | Dulles | -20 | |
| Sep 8, 2026Arrived | Columbus | Dulles | -19 | |
| Sep 7, 2026Arrived | Charlotte | Dulles | -11 | |
| Sep 6, 2026Arrived | Charlotte | Dulles | -15 | |
| Sep 5, 2026Arrived | Charlotte | Dulles | 132 | |
| Sep 2, 2026Cancelled | Charlotte | Dulles | Not available | Not available |
| Aug 28, 2026Cancelled | Charlotte | Dulles | Not available | Not available |