United Flight #4921
(UA4921)
Operated by
Operated by
| United | 4921 | Washington, DC | Arrived | 2:25 PM | 2:40 PM |
| Allegiant | 2275 | Orlando, FL | Arrived | 3:16 PM | 3:07 PM |
| Delta | 6253 | Detroit, MI | Arrived | 3:37 PM | 3:27 PM |
| Delta | 6244 | Detroit, MI | Landed | 6:00 PM | 5:47 PM |
| Delta | 6213 | Detroit, MI | Scheduled | 6:00 AM | |
| United | 4880 | Washington, DC | Scheduled | 6:15 AM | 6:15 AM |
| Delta | 6202 | Detroit, MI | Scheduled | 9:00 AM | |
| Delta | 6216 | Detroit, MI | Scheduled | 11:50 AM |
