Best Time to Fly MDW to DAL: On-Time Stats by Hour & Airline
Chicago Midway International → Dallas Love Field
Data through July 2026 · Last updated October 18, 2026
2,185 flights were scheduled from Chicago (MDW) to Dallas (DAL) in the last 12 months, and 77.3% of those that flew arrived on time, in line with 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 (84% on time) and June the worst month (64%).
The cancellation rate was 2.0% (US average 1.8%).
MDW to DAL 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 | 77.3% | 57 min | 2.0% | 2,185 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MDW to DAL
On-time arrival % by scheduled departure hour (local time), 4,432 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 94.4% | 1.4% | 490 |
| 6am–7am | 96.4% | 1.7% | 230 |
| 7am–8am | 88.2% | 2.4% | 297 |
| 8am–9am | 87.8% | 0.9% | 327 |
| 9am–10am | 86.7% | 2.0% | 201 |
| 10am–11am | 80.9% | 2.2% | 273 |
| 11am–12pm | 74.2% | 1.3% | 157 |
| 12pm–1pm | 79.9% | 2.5% | 354 |
| 1pm–2pm | 77.4% | 1.4% | 217 |
| 2pm–3pm | 70.2% | 0.8% | 123 |
| 3pm–4pm | 74.5% | 1.8% | 169 |
| 4pm–5pm | 73.7% | 1.0% | 295 |
| 5pm–6pm | 65.3% | 2.6% | 195 |
| 6pm–7pm | 71.6% | 1.4% | 282 |
| 7pm–8pm | 62.0% | 1.9% | 271 |
| 8pm–9pm | 65.4% | 1.2% | 497 |
| 9pm–10pm | 41.5% | 1.9% | 54 |
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 DAL
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) | 71.9% | -9.2 pts | 4.3% | 93 |
| Christmas & New Year (Dec 20 - Jan 3) | 69.9% | -11.3 pts | 1.6% | 193 |
| Summer peak (Jun 15 - Aug 15) | 69.5% | -11.6 pts | 1.6% | 840 |
| All other days | 81.2% | — | 1.6% | 3,306 |
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).