B6311
B6311 (JetBlue Airways) flies Boston to Chicago. Of 561 departures recorded from October 2024 to July 2026, 87.6% left on time, according to the US BTS.
Recorded departures by month
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 30 | – | – |
| February | 26 | 17 | ▼ 34.6% |
| March | 23 | 31 | ▲ 34.8% |
| April | 25 | 22 | ▼ 12.0% |
| May | 31 | 21 | ▼ 32.3% |
| June | 30 | 29 | ▼ 3.3% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 26 | – | – |
| December | 16 | – | – |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 83.3% | – | – |
| February | 84.0% | 86.7% | ▲ 3.2% |
| March | 82.6% | 80.0% | ▼ 3.2% |
| April | 84.0% | 100.0% | ▲ 19.0% |
| May | 90.3% | 85.7% | ▼ 5.1% |
| June | 96.7% | 89.7% | ▼ 7.3% |
| July | 96.7% | 82.8% | ▼ 14.4% |
| August | 90.3% | – | – |
| September | 90.0% | – | – |
| October | 90.3% | – | in progress |
| November | 80.8% | – | – |
| December | 81.3% | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | – | – |
| February | 1 | 2 | ▲ 100.0% |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 2 | ▲ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
according to the US BTS · October 2024 → July 2026
This is a historical record of departures already flown, not a forecast for your flight.
Cancellation share
- Not cancelled 98.8% 554
- Cancelled 1.2% 7
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BOS ORD Boston Logan International Airport – Chicago O'Hare International Airport | 1,391 | 5.0 min | 87.6% | 561 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 75.0% | 0 |
| November 2024 | 29 | 29 | 93.1% | 0 |
| December 2024 | 31 | 31 | 87.1% | 0 |
| January 2025 | 30 | 30 | 83.3% | 0 |
| February 2025 | 26 | 25 | 84.0% | 1 |
| March 2025 | 23 | 23 | 82.6% | 0 |
| April 2025 | 25 | 25 | 84.0% | 0 |
| May 2025 | 31 | 31 | 90.3% | 0 |
| June 2025 | 30 | 30 | 96.7% | 0 |
| July 2025 | 31 | 30 | 96.7% | 1 |
| August 2025 | 31 | 31 | 90.3% | 0 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 31 | 31 | 90.3% | 0 |
| November 2025 | 26 | 26 | 80.8% | 0 |
| December 2025 | 16 | 16 | 81.3% | 0 |
| February 2026 | 17 | 15 | 86.7% | 2 |
| March 2026 | 31 | 30 | 80.0% | 1 |
| April 2026 | 22 | 22 | 100.0% | 0 |
| May 2026 | 21 | 21 | 85.7% | 0 |
| June 2026 | 29 | 29 | 89.7% | 0 |
| July 2026 | 31 | 29 | 82.8% | 2 |