Which departure time was most reliable for MDW to LAS?
Among qualifying MDW-to-LAS departure window results, Early morning had the highest on-time rate: 89.4% of 669 flights. Night was lowest at 48.9% across 137 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 669 | 89.4% | 4.5% | 0.1% |
| Late morning | 440 | 81.1% | 10.7% | 0.7% |
| Afternoon | 623 | 68.9% | 17.5% | 1.1% |
| Evening | 467 | 61.9% | 24.2% | 1.1% |
| Night | 137 | 48.9% | 34.3% | 3.6% |
Which weekday was most reliable for MDW to LAS?
Among qualifying MDW-to-LAS weekday results, Saturday had the highest on-time rate: 78.0% of 264 flights. Sunday was lowest at 71.8% across 355 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 346 | 73.7% | 14.7% | 0.9% |
| Tuesday | 343 | 76.7% | 11.7% | 0.0% |
| Wednesday | 334 | 77.2% | 11.7% | 0.6% |
| Thursday | 346 | 72.3% | 17.6% | 1.2% |
| Friday | 348 | 72.7% | 16.4% | 1.1% |
| Saturday | 264 | 78.0% | 12.9% | 1.5% |
| Sunday | 355 | 71.8% | 18.0% | 1.1% |
Which airline was most reliable for MDW to LAS?
Only Southwest Airlines met the MDW-to-LAS airline threshold: 74.5% of 2,333 scheduled flights arrived on time during July 2025–June 2026.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 2,333 | 74.5% | 14.8% | 0.9% |
| Allegiant Air | 2 | 50.0% | 50.0% | 0.0% |
| Frontier Airlines | 1 | 100.0% | 0.0% | 0.0% |
Which month was most reliable for MDW to LAS?
Among qualifying MDW-to-LAS month results, August 2025 had the highest on-time rate: 83.3% of 215 flights. June 2026 was lowest at 61.2% across 188 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 258 | 67.8% | 21.7% | 1.2% |
| August 2025 | 215 | 83.3% | 11.6% | 0.0% |
| September 2025 | 213 | 82.2% | 8.5% | 0.0% |
| October 2025 | 209 | 83.3% | 6.2% | 0.0% |
| November 2025 | 178 | 73.0% | 12.4% | 5.1% |
| December 2025 | 185 | 68.1% | 18.9% | 0.0% |
| January 2026 | 161 | 81.4% | 11.2% | 0.0% |
| February 2026 | 138 | 79.0% | 11.6% | 0.0% |
| March 2026 | 196 | 62.2% | 23.5% | 2.6% |
| April 2026 | 193 | 75.6% | 14.0% | 1.6% |
| May 2026 | 202 | 78.2% | 12.4% | 0.0% |
| June 2026 | 188 | 61.2% | 23.9% | 0.5% |
What drove MDW to LAS delay minutes?
Late aircraft was the largest recorded MDW-to-LAS delay category, accounting for 44.3% of 30,067 BTS-attributed delay minutes during July 2025–June 2026.
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