C
Is Delta Air Lines on time Washington to Seattle?
361 flights · January 2025 – August 2026 · all airlines on IAD to SEA →
77.18%
Arrived on time
Route average 76.57%
1.39%
Cancelled
Route average 1.01%
93 min
When late, late by
The other airlines on this route
| Airline | Flights | On time | Grade |
|---|---|---|---|
| Alaska Airlines | 835 | 73.7% | D |
| United Airlines | 688 | 79.74% | C |
Month by month
Jul 2025
peak 93
Jun 2026