Flight
DAL637 23 Jul 2026
DAL637, operated by Delta Air Lines, on 23 Jul 2026: Chicago Ohare International (KORD) to Seattle Tacoma International (KSEA), 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2
PlaneTrack receiver network| Route | KORD CHICAGO OHARE INTERNATIONAL → KSEA SEATTLE TACOMA INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 19:00 CDT 22 Jul |
| Last seen | 21:26 PDT 22 Jul |
| Duration | 4h 25m |
| Aircraft | N821DN |
| Max altitude | 36,000 ft |
| Distance tracked | 1,491 nm |
Leg 2 of 2
PlaneTrack receiver network| Route | KSEA SEATTLE TACOMA INTERNATIONAL → KORD CHICAGO OHARE INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 11:14 PDT |
| Last seen | 16:44 CDT |
| Duration | 3h 29m |
| Aircraft | N914DU |
| Max altitude | 35,000 ft |
| Distance tracked | 1,491 nm |
Punctuality, last 30 days
| Flights | 7 |
| On time | 0 (0%) |
| Average delay | +50 min |
| Worst delay | +81 min |
In the last 30 days DAL637 departed on time (within 15 minutes) on 0 of 7 flights (0%), with an average departure delay of +50 min and a worst delay of +81 min.
Schedule, departure and arrival times from the FAA SWIM feed; aircraft, altitude and distance from the PlaneTrack receiver network. On time means a departure within 15 minutes of schedule.