Best Time to Fly PIT to MDW: On-Time Stats by Hour & Airline
Pittsburgh International → Chicago Midway International
Data through July 2026 · Last updated October 18, 2026
1,118 flights were scheduled from Pittsburgh (PIT) to Chicago (MDW) in the last 12 months, and 79.6% of those that flew arrived on time, 2.0 points above the US average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
November has been the best month (89% on time) and Sunday the weakest day of the week (75%).
1.1% of flights were cancelled, versus 1.8% nationally.
PIT 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 | 79.6% | 61 min | 1.1% | 1,118 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly PIT to MDW
On-time arrival % by scheduled departure hour (local time), 2,241 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 96.0% | 0.0% | 51 |
| 6am–7am | 88.3% | 0.6% | 336 |
| 7am–8am | 81.6% | 0.8% | 126 |
| 8am–9am | 81.4% | 1.1% | 185 |
| 9am–10am | 94.4% | 0.0% | 89 |
| 10am–11am | 97.6% | 0.0% | 41 |
| 11am–12pm | Limited data | 20 | |
| 12pm–1pm | 88.9% | 1.5% | 137 |
| 1pm–2pm | 82.6% | 0.8% | 122 |
| 2pm–3pm | 88.5% | 1.7% | 178 |
| 3pm–4pm | 75.0% | 0.9% | 105 |
| 4pm–5pm | 75.8% | 0.0% | 121 |
| 5pm–6pm | 77.0% | 1.6% | 62 |
| 6pm–7pm | 79.5% | 0.8% | 123 |
| 7pm–8pm | 74.5% | 0.4% | 241 |
| 8pm–9pm | 66.1% | 0.9% | 224 |
| 9pm–10pm | 63.8% | 0.0% | 80 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on PIT 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) | 86.5% | +3.9 pts | 2.6% | 38 |
| Christmas & New Year (Dec 20 - Jan 3) | 68.3% | -14.3 pts | 1.2% | 83 |
| Summer peak (Jun 15 - Aug 15) | 77.2% | -5.4 pts | 1.0% | 405 |
| All other days | 82.6% | — | 0.6% | 1,715 |
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).