Best Time to Fly MDW to MCI: On-Time Stats by Hour & Airline
Chicago Midway International → Kansas City International
Data through July 2026 · Last updated October 18, 2026
2,102 flights were scheduled from Chicago (MDW) to Kansas City (MCI) in the last 12 months, and 78.7% of those that flew arrived on time, 1.1 points above the US average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
October has been the best month (89% on time) and Sunday the weakest day of the week (77%).
1.4% of flights were cancelled, versus 1.8% nationally.
MDW to MCI on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Southwest Airlines | 78.7% | 53 min | 1.4% | 2,102 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MDW to MCI
On-time arrival % by scheduled departure hour (local time), 4,234 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 95.0% | 2.9% | 104 |
| 6am–7am | 96.5% | 0.6% | 174 |
| 7am–8am | 91.2% | 0.8% | 357 |
| 8am–9am | 90.4% | 1.5% | 338 |
| 9am–10am | 86.5% | 0.5% | 201 |
| 10am–11am | 88.1% | 0.9% | 339 |
| 11am–12pm | 88.3% | 2.5% | 245 |
| 12pm–1pm | 81.3% | 1.4% | 222 |
| 1pm–2pm | 84.7% | 0.4% | 243 |
| 2pm–3pm | 77.4% | 1.6% | 319 |
| 3pm–4pm | 82.3% | 0.7% | 154 |
| 4pm–5pm | 74.9% | 1.6% | 371 |
| 5pm–6pm | 72.7% | 1.3% | 152 |
| 6pm–7pm | 67.6% | 1.3% | 151 |
| 7pm–8pm | 75.2% | 0.0% | 145 |
| 8pm–9pm | 66.7% | 0.3% | 325 |
| 9pm–10pm | 62.6% | 2.8% | 213 |
| 10pm–11pm | 65.3% | 2.2% | 181 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on MDW to MCI
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 81.2% | -2.1 pts | 5.8% | 69 |
| Christmas & New Year (Dec 20 - Jan 3) | 74.8% | -8.5 pts | 0.6% | 156 |
| Summer peak (Jun 15 - Aug 15) | 71.0% | -12.3 pts | 2.0% | 815 |
| All other days | 83.4% | — | 1.0% | 3,194 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).