F
Is United Airlines on time Washington to London?
425 flights · January 2025 – August 2026 · all airlines on IAD to LHR →
64.41%
Arrived on time
Route average 71.22%
2.82%
Cancelled
Route average 2.94%
—
When late, late by
The other airlines on this route
| Airline | Flights | On time | Grade |
|---|---|---|---|
| British Airways | 517 | 73.11% | D |
| Virgin Atlantic | 182 | 81.82% | C |
Month by month
Jan 2025
peak 76
Jun 2026