Best Time to Fly MYR to MDW: On-Time Stats by Hour & Airline
Myrtle Beach International → Chicago Midway International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 85.0% of Myrtle Beach (MYR) to Chicago (MDW) flights arrived on time (332 scheduled flights). That is 7.3 points above the national 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 (94% on time) and July the worst month (75%).
The cancellation rate was 1.8% (US average 1.8%).
MYR 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 | 85.0% | 53 min | 1.8% | 332 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MYR to MDW
On-time arrival % by scheduled departure hour (local time), 775 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 92.9% | 0.0% | 42 |
| 6am–7am | 93.1% | 0.0% | 189 |
| 7am–8am | 97.2% | 2.1% | 145 |
| 8am–9am | 89.8% | 0.0% | 49 |
| 10am–11am | Limited data | 1 | |
| 11am–12pm | Limited data | 5 | |
| 1pm–2pm | 91.9% | 5.1% | 39 |
| 2pm–3pm | 86.8% | 0.0% | 38 |
| 3pm–4pm | 87.8% | 0.0% | 50 |
| 4pm–5pm | 80.8% | 5.5% | 55 |
| 5pm–6pm | 65.4% | 1.2% | 82 |
| 6pm–7pm | 73.3% | 3.2% | 31 |
| 7pm–8pm | 61.7% | 2.1% | 48 |
| 8pm–9pm | Limited data | 1 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on MYR 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 | 13 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 30 | ||
| Summer peak (Jun 15 - Aug 15) | 75.9% | -14.6 pts | 2.0% | 204 |
| All other days | 90.4% | — | 0.9% | 528 |
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).