Best Time to Fly CLT to MDW: On-Time Stats by Hour & Airline
Charlotte Douglas International → Chicago Midway International
Data through July 2026 · Last updated October 18, 2026
719 flights were scheduled from Charlotte (CLT) to Chicago (MDW) in the last 12 months, and 76.5% of those that flew arrived on time, 1.2 points below the US average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Tuesday was the most reliable day (81% on time) and July the worst month (65%).
The cancellation rate was 1.9% (US average 1.8%).
CLT to MDW 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 | 76.5% | 58 min | 1.9% | 719 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly CLT to MDW
On-time arrival % by scheduled departure hour (local time), 1,466 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 86.0% | 4.4% | 91 |
| 6am–7am | 92.3% | 0.4% | 235 |
| 7am–8am | 88.0% | 0.9% | 226 |
| 8am–9am | 85.0% | 2.1% | 95 |
| 9am–10am | Limited data | 2 | |
| 11am–12pm | Limited data | 29 | |
| 12pm–1pm | Limited data | 27 | |
| 1pm–2pm | 85.0% | 0.0% | 40 |
| 2pm–3pm | Limited data | 9 | |
| 3pm–4pm | 89.7% | 2.4% | 41 |
| 4pm–5pm | Limited data | 28 | |
| 5pm–6pm | 70.3% | 1.0% | 102 |
| 6pm–7pm | 62.5% | 1.1% | 186 |
| 7pm–8pm | 55.9% | 1.9% | 213 |
| 8pm–9pm | 56.0% | 0.7% | 142 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on CLT to MDW
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) | Limited data | 28 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 69.5% | -8.4 pts | 1.7% | 60 |
| Summer peak (Jun 15 - Aug 15) | 66.1% | -11.8 pts | 1.6% | 321 |
| All other days | 77.9% | — | 0.9% | 1,057 |
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).