Best Time to Fly MDW to LGB: On-Time Stats by Hour & Airline
Chicago Midway International → Long Beach Airport
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 75.6% of Chicago (MDW) to Long Beach (LGB) flights arrived on time (284 scheduled flights). That is 2.0 points below the national average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
August has been the best month (93% on time) and Saturday the weakest day of the week (79%).
1.8% of flights were cancelled, versus 1.8% nationally.
MDW to LGB 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 | 75.6% | 45 min | 1.8% | 284 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MDW to LGB
On-time arrival % by scheduled departure hour (local time), 646 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | Limited data | 26 | |
| 8am–9am | 88.9% | 0.0% | 72 |
| 9am–10am | 88.7% | 0.4% | 230 |
| 10am–11am | 82.9% | 0.0% | 41 |
| 11am–12pm | 77.3% | 2.9% | 68 |
| 12pm–1pm | 73.2% | 0.0% | 56 |
| 1pm–2pm | 70.6% | 1.4% | 69 |
| 2pm–3pm | 61.1% | 2.7% | 37 |
| 3pm–4pm | Limited data | 4 | |
| 4pm–5pm | Limited data | 18 | |
| 5pm–6pm | Limited data | 9 | |
| 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 MDW to LGB
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) | 56.7% | -27.2 pts | 0.0% | 30 |
| Summer peak (Jun 15 - Aug 15) | 74.8% | -9.1 pts | 1.6% | 121 |
| All other days | 83.9% | — | 0.8% | 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).