DL350
DL350 (Delta Air Lines) flies Atlanta to Boston. Of 626 departures recorded from October 2024 to July 2026, 73.1% left on time, according to the US BTS.
- On-time departures73.1%of 626 flights
- Average delay13.5 min
- July 202627▼ 12.9%vs July 2025
- Cancelled1.4%
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 | 27 | 29 | ▲ 7.4% |
| February | 23 | 24 | ▲ 4.3% |
| March | 29 | 31 | ▲ 6.9% |
| April | 30 | 30 | 0.0% |
| May | 31 | 26 | ▼ 16.1% |
| June | 30 | 26 | ▼ 13.3% |
| July | 31 | 27 | ▼ 12.9% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 29 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 201 | 193 | ▼ 4.0% |
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 | 65.4% | 88.5% | ▲ 35.3% |
| February | 73.9% | 78.3% | ▲ 5.9% |
| March | 82.8% | 86.2% | ▲ 4.2% |
| April | 83.3% | 69.0% | ▼ 17.2% |
| May | 54.8% | 84.6% | ▲ 54.3% |
| June | 46.7% | 73.1% | ▲ 56.6% |
| July | 64.5% | 63.0% | ▼ 2.4% |
| August | 77.4% | – | – |
| September | 56.7% | – | – |
| October | 62.1% | – | in progress |
| November | 86.7% | – | – |
| December | 80.0% | – | – |
| Year-to-date average (Jan–Jul) | 67.3% | 77.5% | ▲ 15.1% |
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 | 1 | 3 | ▲ 200.0% |
| February | 0 | 1 | – |
| March | 0 | 2 | – |
| April | 0 | 1 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 1 | 7 | ▲ 600.0% |
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 98.6% 617
- Cancelled 1.4% 9
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 |
|---|---|---|---|---|
| ATL BOS Hartsfield Jackson Atlanta International Airport – Boston Logan International Airport | 1,521 | 13.5 min | 73.1% | 626 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 80.0% | 0 |
| November 2024 | 30 | 30 | 73.3% | 0 |
| December 2024 | 31 | 31 | 83.9% | 0 |
| January 2025 | 27 | 26 | 65.4% | 1 |
| February 2025 | 23 | 23 | 73.9% | 0 |
| March 2025 | 29 | 29 | 82.8% | 0 |
| April 2025 | 30 | 30 | 83.3% | 0 |
| May 2025 | 31 | 31 | 54.8% | 0 |
| June 2025 | 30 | 30 | 46.7% | 0 |
| July 2025 | 31 | 31 | 64.5% | 0 |
| August 2025 | 31 | 31 | 77.4% | 0 |
| September 2025 | 30 | 30 | 56.7% | 0 |
| October 2025 | 29 | 29 | 62.1% | 0 |
| November 2025 | 30 | 30 | 86.7% | 0 |
| December 2025 | 31 | 30 | 80.0% | 1 |
| January 2026 | 29 | 26 | 88.5% | 3 |
| February 2026 | 24 | 23 | 78.3% | 1 |
| March 2026 | 31 | 29 | 86.2% | 2 |
| April 2026 | 30 | 29 | 69.0% | 1 |
| May 2026 | 26 | 26 | 84.6% | 0 |
| June 2026 | 26 | 26 | 73.1% | 0 |
| July 2026 | 27 | 27 | 63.0% | 0 |