Which departure time was most reliable for IAH to BWI?
Among qualifying IAH-to-BWI departure window results, Early morning had the highest on-time rate: 81.0% of 416 flights. Evening was lowest at 66.3% across 412 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 416 | 81.0% | 10.1% | 1.7% |
| Late morning | 42 | 78.6% | 9.5% | 0.0% |
| Afternoon | 428 | 75.9% | 14.0% | 1.6% |
| Evening | 412 | 66.3% | 23.1% | 1.2% |
Which weekday was most reliable for IAH to BWI?
Among qualifying IAH-to-BWI weekday results, Tuesday had the highest on-time rate: 81.1% of 175 flights. Sunday was lowest at 65.6% across 192 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 189 | 69.8% | 18.5% | 3.2% |
| Tuesday | 175 | 81.1% | 13.7% | 0.0% |
| Wednesday | 178 | 79.8% | 13.5% | 0.0% |
| Thursday | 212 | 80.7% | 11.3% | 0.5% |
| Friday | 206 | 73.3% | 16.0% | 1.9% |
| Saturday | 159 | 71.1% | 17.0% | 0.6% |
| Sunday | 192 | 65.6% | 19.8% | 3.6% |
Which airline was most reliable for IAH to BWI?
Among qualifying IAH-to-BWI airline results, United Airlines had the highest on-time rate: 77.3% of 814 flights. Frontier Airlines was lowest at 52.5% across 118 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| United Airlines | 814 | 77.3% | 14.1% | 0.6% |
| Spirit Airlines | 377 | 75.3% | 15.6% | 2.1% |
| Frontier Airlines | 118 | 52.5% | 26.3% | 5.1% |
| SkyWest Airlines | 2 | 100.0% | 0.0% | 0.0% |
Which month was most reliable for IAH to BWI?
Among qualifying IAH-to-BWI month results, February 2026 had the highest on-time rate: 86.4% of 103 flights. July 2025 was lowest at 54.7% across 106 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 106 | 54.7% | 28.3% | 1.9% |
| August 2025 | 99 | 65.7% | 27.3% | 0.0% |
| September 2025 | 106 | 81.1% | 11.3% | 0.0% |
| October 2025 | 107 | 75.7% | 17.8% | 0.0% |
| November 2025 | 122 | 84.4% | 9.8% | 0.0% |
| December 2025 | 105 | 76.2% | 14.3% | 1.0% |
| January 2026 | 119 | 83.2% | 8.4% | 5.9% |
| February 2026 | 103 | 86.4% | 7.8% | 1.9% |
| March 2026 | 115 | 65.2% | 15.7% | 2.6% |
| April 2026 | 121 | 81.0% | 9.9% | 0.8% |
| May 2026 | 106 | 71.7% | 18.9% | 0.0% |
| June 2026 | 102 | 65.7% | 21.6% | 2.9% |
What drove IAH to BWI delay minutes?
Airline was the largest recorded IAH-to-BWI delay category, accounting for 42.6% of 19,573 BTS-attributed delay minutes during July 2025–June 2026.
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