Flight records through . Security counts through .
Which IAD to STL flight is punctual? United 4388, 9 am.
83% on time across 24 flights in the last 3 months, never cancelled.
| Departs | Flight | On time |
|---|---|---|
| 9:00 am | UA 4388 | 83% |
| 9:00 am | UA 4425 | 83% |
| 8:25 am | UA 4427 | 81% |
| 5:55 pm | UA 4527 | 63% |
When do the flights leave? 4 regular flights, 8:25 am to 5:55 pm.
UA 4527 was cancelled most often, 3% of the time.
Flight records,
- UA 4427 81%
- UA 4388 83%
- UA 4425 83%
- UA 4527 63%
What time should I fly? The 9 am departures.
85% landed on time; at 5 pm, 69%. Tuesday was the best day, Friday the worst.
Flight records,
| Departs | Bar | Landed on time |
|---|---|---|
| 8 am | 81% | |
| 9 am | 85% | |
| 5 pm | 69% |
When is IAD security busiest? 3 to 4 pm daily.
Calmest around 9 am. Washington IAD security, hour by hour.
Security counts,
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Thursday, 4 pm
4,000
people screened, all terminals.