C
Is United Airlines on time Washington to Seattle?
688 flights · January 2025 – August 2026 · all airlines on IAD to SEA →
79.74%
Arrived on time
Route average 76.57%
0.58%
Cancelled
Route average 1.01%
61 min
When late, late by
The other airlines on this route
| Airline | Flights | On time | Grade |
|---|---|---|---|
| Alaska Airlines | 835 | 73.7% | D |
| Delta Air Lines | 361 | 77.18% | C |
Month by month
Jul 2025
peak 93
Jun 2026