Best Time to Fly LGB to MDW: On-Time Stats by Hour & Airline
Long Beach Airport → Chicago Midway International
Data through July 2026 · Last updated October 18, 2026
284 flights were scheduled from Long Beach (LGB) to Chicago (MDW) in the last 12 months, and 83.3% of those that flew arrived on time, 5.6 points above the US average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Wednesday was the most reliable day (93% on time) and May the worst month (74%).
The cancellation rate was 1.1% (US average 1.8%).
LGB 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 | 83.3% | 34 min | 1.1% | 284 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly LGB to MDW
On-time arrival % by scheduled departure hour (local time), 646 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 100.0% | 0.0% | 33 |
| 7am–8am | Limited data | 13 | |
| 8am–9am | 92.0% | 0.9% | 116 |
| 9am–10am | Limited data | 20 | |
| 10am–11am | 86.0% | 0.0% | 50 |
| 11am–12pm | 87.1% | 0.9% | 230 |
| 12pm–1pm | 80.2% | 0.0% | 103 |
| 1pm–2pm | 86.2% | 1.2% | 81 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on LGB 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 | 14 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 80.0% | -7.5 pts | 0.0% | 30 |
| Summer peak (Jun 15 - Aug 15) | 90.7% | +3.1 pts | 0.8% | 121 |
| All other days | 87.5% | — | 0.4% | 481 |
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).