Best Time to Fly OKC to MDW: On-Time Stats by Hour & Airline
Okc Will Rogers International → Chicago Midway International
Data through July 2026 · Last updated October 18, 2026
560 flights were scheduled from Oklahoma City (OKC) to Chicago (MDW) in the last 12 months, and 84.3% of those that flew arrived on time, 6.7 points above the US average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Monday was the most reliable day (93% on time) and December the worst month (73%).
The cancellation rate was 1.4% (US average 1.8%).
OKC 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 | 84.3% | 42 min | 1.4% | 560 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly OKC to MDW
On-time arrival % by scheduled departure hour (local time), 1,064 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 94.6% | 1.1% | 283 |
| 6am–7am | 95.1% | 2.4% | 83 |
| 7am–8am | 93.8% | 0.0% | 96 |
| 8am–9am | Limited data | 12 | |
| 9am–10am | Limited data | 8 | |
| 10am–11am | Limited data | 28 | |
| 11am–12pm | Limited data | 1 | |
| 12pm–1pm | Limited data | 17 | |
| 1pm–2pm | Limited data | 5 | |
| 2pm–3pm | 69.3% | 3.1% | 64 |
| 3pm–4pm | 79.9% | 0.7% | 270 |
| 4pm–5pm | 74.0% | 1.0% | 97 |
| 5pm–6pm | 76.2% | 0.0% | 84 |
| 6pm–7pm | Limited data | 16 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on OKC 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 | 12 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 70.0% | -17.3 pts | 0.0% | 30 |
| Summer peak (Jun 15 - Aug 15) | 82.4% | -4.9 pts | 1.3% | 237 |
| All other days | 87.3% | — | 0.9% | 785 |
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).