DL434
DL434 (Delta Air Lines) is a multi-stop service on 5 routes, busiest Atlanta to New York. Of 621 departures recorded from October 2024 to July 2026, 63.3% left on time, according to the US BTS.
- On-time departures63.3%of 621 flights
- Average delay26.9 min
- July 202627▼ 10.0%vs July 2025
- Cancelled2.1%
- Legs flown under this number5
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 25 | 31 | ▲ 24.0% |
| February | 24 | 25 | ▲ 4.2% |
| March | 26 | 27 | ▲ 3.8% |
| April | 28 | 26 | ▼ 7.1% |
| May | 35 | 30 | ▼ 14.3% |
| June | 28 | 27 | ▼ 3.6% |
| July | 30 | 27 | ▼ 10.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 196 | 193 | ▼ 1.5% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
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 | 62.5% | 73.3% | ▲ 17.3% |
| February | 58.3% | 87.0% | ▲ 49.1% |
| March | 69.2% | 57.7% | ▼ 16.7% |
| April | 67.9% | 72.0% | ▲ 6.1% |
| May | 68.6% | 66.7% | ▼ 2.8% |
| June | 32.1% | 55.6% | ▲ 72.9% |
| July | 35.7% | 50.0% | ▲ 40.0% |
| August | 70.0% | – | – |
| September | 70.0% | – | – |
| October | 58.1% | – | in progress |
| November | 64.3% | – | – |
| December | 48.3% | – | – |
| Year-to-date average (Jan–Jul) | 56.3% | 66.0% | ▲ 17.2% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 1 | 0.0% |
| February | 0 | 2 | – |
| March | 0 | 1 | – |
| April | 0 | 1 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 2 | 1 | ▼ 50.0% |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 2 | – | – |
| Year to date (Jan–Jul) | 3 | 6 | ▲ 100.0% |
according to the US BTS · October 2024 → July 2026
This is a historical record of departures already flown, not a forecast for your flight.
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 97.9% 608
- Cancelled 2.1% 13
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 LGA Hartsfield Jackson Atlanta International Airport – LaGuardia Airport | 1,225 | 27.5 min | 62.7% | 603 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 75.0% | 0 |
| November 2024 | 30 | 30 | 86.7% | 0 |
| December 2024 | 30 | 30 | 66.7% | 0 |
| January 2025 | 25 | 24 | 62.5% | 1 |
| February 2025 | 24 | 24 | 58.3% | 0 |
| March 2025 | 26 | 26 | 69.2% | 0 |
| April 2025 | 28 | 28 | 67.9% | 0 |
| May 2025 | 35 | 35 | 68.6% | 0 |
| June 2025 | 28 | 28 | 32.1% | 0 |
| July 2025 | 30 | 28 | 35.7% | 2 |
| August 2025 | 31 | 30 | 70.0% | 1 |
| September 2025 | 30 | 30 | 70.0% | 0 |
| October 2025 | 31 | 31 | 58.1% | 0 |
| November 2025 | 29 | 28 | 64.3% | 1 |
| December 2025 | 31 | 29 | 48.3% | 2 |
| January 2026 | 31 | 30 | 73.3% | 1 |
| February 2026 | 25 | 23 | 87.0% | 2 |
| March 2026 | 27 | 26 | 57.7% | 1 |
| April 2026 | 26 | 25 | 72.0% | 1 |
| May 2026 | 30 | 30 | 66.7% | 0 |
| June 2026 | 27 | 27 | 55.6% | 0 |
| July 2026 | 27 | 26 | 50.0% | 1 |