Best Time to Fly MDW to MHT: On-Time Stats by Hour & Airline
Chicago Midway International → Manchester Boston Regional
Data through July 2026 · Last updated October 18, 2026
522 flights were scheduled from Chicago (MDW) to Manchester (MHT) in the last 12 months, and 74.0% of those that flew arrived on time, 3.6 points below 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 (83% on time) and June the worst month (70%).
The cancellation rate was 1.0% (US average 1.8%).
MDW to MHT 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 | 74.0% | 58 min | 1.0% | 522 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MDW to MHT
On-time arrival % by scheduled departure hour (local time), 1,020 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 94.7% | 0.0% | 57 |
| 9am–10am | Limited data | 15 | |
| 10am–11am | 90.0% | 0.0% | 30 |
| 11am–12pm | 89.4% | 0.0% | 94 |
| 12pm–1pm | 91.9% | 0.0% | 124 |
| 1pm–2pm | 83.1% | 0.0% | 142 |
| 2pm–3pm | Limited data | 13 | |
| 3pm–4pm | Limited data | 16 | |
| 4pm–5pm | Limited data | 5 | |
| 5pm–6pm | 73.9% | 0.0% | 88 |
| 6pm–7pm | 71.4% | 0.9% | 222 |
| 7pm–8pm | 65.3% | 1.9% | 104 |
| 8pm–9pm | 62.8% | 4.1% | 98 |
| 9pm–10pm | Limited data | 5 | |
| 10pm–11pm | Limited data | 7 | |
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 MHT
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) | Limited data | 30 | ||
| Summer peak (Jun 15 - Aug 15) | 73.2% | -6.5 pts | 1.3% | 238 |
| All other days | 79.7% | — | 0.5% | 738 |
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).