Which departure time was most reliable for PDX to ATL?
Among qualifying PDX-to-ATL departure window results, Night had the highest on-time rate: 89.4% of 377 flights. Late morning was lowest at 85.5% across 318 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 650 | 86.3% | 4.6% | 0.8% |
| Late morning | 318 | 85.5% | 6.3% | 0.9% |
| Afternoon | 230 | 87.0% | 5.2% | 1.3% |
| Night | 377 | 89.4% | 6.1% | 0.8% |
Which weekday was most reliable for PDX to ATL?
Among qualifying PDX-to-ATL weekday results, Wednesday had the highest on-time rate: 91.0% of 223 flights. Sunday was lowest at 83.8% across 228 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 230 | 86.1% | 6.1% | 0.4% |
| Tuesday | 229 | 90.0% | 4.8% | 0.4% |
| Wednesday | 223 | 91.0% | 4.0% | 0.0% |
| Thursday | 227 | 89.4% | 4.0% | 0.9% |
| Friday | 228 | 83.8% | 5.7% | 0.9% |
| Saturday | 210 | 84.8% | 7.1% | 1.9% |
| Sunday | 228 | 83.8% | 6.1% | 1.8% |
Which airline was most reliable for PDX to ATL?
Among qualifying PDX-to-ATL airline results, Delta Air Lines had the highest on-time rate: 89.3% of 1,288 flights. Alaska Airlines was lowest at 76.6% across 286 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Delta Air Lines | 1,288 | 89.3% | 4.8% | 1.0% |
| Alaska Airlines | 286 | 76.6% | 8.0% | 0.3% |
| American Airlines | 1 | 100.0% | 0.0% | 0.0% |
Which month was most reliable for PDX to ATL?
Among qualifying PDX-to-ATL month results, February 2026 had the highest on-time rate: 96.2% of 80 flights. July 2025 was lowest at 74.2% across 178 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 178 | 74.2% | 9.6% | 0.6% |
| August 2025 | 163 | 86.5% | 6.1% | 0.6% |
| September 2025 | 145 | 89.0% | 3.4% | 0.0% |
| October 2025 | 154 | 90.3% | 4.5% | 0.0% |
| November 2025 | 140 | 89.3% | 4.3% | 1.4% |
| December 2025 | 122 | 87.7% | 7.4% | 0.8% |
| January 2026 | 94 | 89.4% | 2.1% | 3.2% |
| February 2026 | 80 | 96.2% | 1.2% | 2.5% |
| March 2026 | 105 | 93.3% | 1.0% | 1.9% |
| April 2026 | 116 | 87.9% | 5.2% | 0.9% |
| May 2026 | 129 | 87.6% | 7.0% | 0.0% |
| June 2026 | 149 | 82.6% | 8.1% | 0.7% |
What drove PDX to ATL delay minutes?
Airline was the largest recorded PDX-to-ATL delay category, accounting for 53.1% of 10,202 BTS-attributed delay minutes during July 2025–June 2026.
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