B61734
B61734 (JetBlue Airways) flies San Francisco to Boston. Of 627 departures recorded from October 2024 to July 2026, 77.0% left on time, according to the US BTS.
- On-time departures77.0%of 627 flights
- Average delay13.6 min
- July 202631▲ 0.0%vs July 2025
- Cancelled1.6%
according to the US BTS · Oct 12, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 31 | 0.0% |
| February | 28 | 28 | 0.0% |
| March | 31 | 31 | 0.0% |
| April | 30 | 28 | ▼ 6.7% |
| May | 31 | 11 | ▼ 64.5% |
| June | 30 | 30 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 212 | 190 | ▼ 10.4% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 77.4% | 72.4% | ▼ 6.5% |
| February | 66.7% | 84.0% | ▲ 26.0% |
| March | 87.1% | 64.5% | ▼ 25.9% |
| April | 83.3% | 75.0% | ▼ 10.0% |
| May | 90.3% | 54.6% | ▼ 39.6% |
| June | 96.7% | 70.0% | ▼ 27.6% |
| July | 80.7% | 67.7% | ▼ 16.0% |
| August | 96.8% | – | – |
| September | 60.0% | – | – |
| October | 48.4% | – | in progress |
| November | 84.0% | – | – |
| December | 80.7% | – | – |
| Year-to-date average (Jan–Jul) | 83.2% | 69.7% | ▼ 16.1% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 2 | – |
| February | 1 | 3 | ▲ 200.0% |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 4 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 5 | ▲ 400.0% |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
Cancellation share
- Not cancelled 98.4% 617
- Cancelled 1.6% 10
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 |
|---|---|---|---|---|
| SFO BOS San Francisco International Airport – Boston Logan International Airport | 4,341 | 13.6 min | 77.0% | 627 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 24 | 24 | 83.3% | 0 |
| December 2024 | 29 | 29 | 65.5% | 0 |
| January 2025 | 31 | 31 | 77.4% | 0 |
| February 2025 | 28 | 27 | 66.7% | 1 |
| March 2025 | 31 | 31 | 87.1% | 0 |
| April 2025 | 30 | 30 | 83.3% | 0 |
| May 2025 | 31 | 31 | 90.3% | 0 |
| June 2025 | 30 | 30 | 96.7% | 0 |
| July 2025 | 31 | 31 | 80.7% | 0 |
| August 2025 | 31 | 31 | 96.8% | 0 |
| September 2025 | 30 | 30 | 60.0% | 0 |
| October 2025 | 31 | 31 | 48.4% | 0 |
| November 2025 | 29 | 25 | 84.0% | 4 |
| December 2025 | 31 | 31 | 80.7% | 0 |
| January 2026 | 31 | 29 | 72.4% | 2 |
| February 2026 | 28 | 25 | 84.0% | 3 |
| March 2026 | 31 | 31 | 64.5% | 0 |
| April 2026 | 28 | 28 | 75.0% | 0 |
| May 2026 | 11 | 11 | 54.6% | 0 |
| June 2026 | 30 | 30 | 70.0% | 0 |
| July 2026 | 31 | 31 | 67.7% | 0 |