Best Time to Fly ORD to MHT: On-Time Stats by Hour & Airline
Chicago O'Hare International → Manchester Boston Regional
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 83.5% of Chicago (ORD) to Manchester (MHT) flights arrived on time (602 scheduled flights). That is 5.9 points above the national average of 77.6%.
Envoy Air was the only reporting airline with regular flights on this route.
Over 24 months, Thursday was the most reliable day (86% on time) and August the worst month (81%).
The cancellation rate was 2.0% (US average 1.8%).
ORD 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 |
|---|---|---|---|---|
| Envoy Air | 83.4% | 52 min | 1.9% | 578 |
| Republic Airways | Limited data | 24 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ORD to MHT
On-time arrival % by scheduled departure hour (local time), 976 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 8am–9am | 86.3% | 0.0% | 329 |
| 9am–10am | Limited data | 18 | |
| 1pm–2pm | 80.0% | 0.7% | 151 |
| 2pm–3pm | 82.3% | 4.6% | 65 |
| 3pm–4pm | Limited data | 25 | |
| 4pm–5pm | Limited data | 1 | |
| 5pm–6pm | Limited data | 17 | |
| 6pm–7pm | 87.8% | 0.0% | 108 |
| 7pm–8pm | 66.0% | 2.0% | 99 |
| 8pm–9pm | 83.8% | 4.9% | 163 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on ORD to MHT
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Summer peak (Jun 15 - Aug 15) | 82.4% | -0.3 pts | 1.9% | 324 |
| All other days | 82.7% | — | 1.2% | 652 |
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).