Which departure time was most reliable for SEA to CLE?
Among qualifying SEA-to-CLE departure window results, Late morning had the highest on-time rate: 75.5% of 339 flights. Night was lowest at 74.1% across 116 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Late morning | 339 | 75.5% | 10.6% | 1.2% |
| Night | 116 | 74.1% | 13.8% | 0.0% |
Which weekday was most reliable for SEA to CLE?
Among qualifying SEA-to-CLE weekday results, Thursday had the highest on-time rate: 83.3% of 72 flights. Friday was lowest at 59.2% across 71 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 72 | 75.0% | 8.3% | 0.0% |
| Tuesday | 55 | 74.5% | 12.7% | 0.0% |
| Wednesday | 66 | 83.3% | 7.6% | 0.0% |
| Thursday | 72 | 83.3% | 5.6% | 0.0% |
| Friday | 71 | 59.2% | 23.9% | 2.8% |
| Saturday | 47 | 70.2% | 17.0% | 2.1% |
| Sunday | 72 | 79.2% | 6.9% | 1.4% |
Which airline was most reliable for SEA to CLE?
Only Alaska Airlines met the SEA-to-CLE airline threshold: 75.2% of 455 scheduled flights arrived on time during July 2025–June 2026.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Alaska Airlines | 455 | 75.2% | 11.4% | 0.9% |
Which month was most reliable for SEA to CLE?
Among qualifying SEA-to-CLE month results, February 2026 had the highest on-time rate: 95.0% of 20 flights. August 2025 was lowest at 59.6% across 57 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 61 | 68.9% | 16.4% | 1.6% |
| August 2025 | 57 | 59.6% | 19.3% | 0.0% |
| September 2025 | 47 | 72.3% | 12.8% | 0.0% |
| October 2025 | 32 | 68.8% | 9.4% | 3.1% |
| November 2025 | 26 | 76.9% | 7.7% | 0.0% |
| December 2025 | 29 | 75.9% | 17.2% | 0.0% |
| January 2026 | 24 | 75.0% | 12.5% | 8.3% |
| February 2026 | 20 | 95.0% | 5.0% | 0.0% |
| March 2026 | 26 | 92.3% | 7.7% | 0.0% |
| April 2026 | 30 | 86.7% | 6.7% | 0.0% |
| May 2026 | 46 | 76.1% | 8.7% | 0.0% |
| June 2026 | 57 | 80.7% | 5.3% | 0.0% |
What drove SEA to CLE delay minutes?
Late aircraft was the largest recorded SEA-to-CLE delay category, accounting for 47.5% of 4,657 BTS-attributed delay minutes during July 2025–June 2026.
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