DL737
DL737 (Delta Air Lines) is a multi-stop service on 2 routes, busiest Atlanta to Washington. Of 1,233 departures recorded from October 2024 to July 2026, 78.3% left on time, according to the US BTS.
- On-time departures78.3%of 1,233 flights
- Average delay13.2 min
- July 202658▼ 6.5%vs July 2025
- Cancelled1.5%
- Legs flown under this number2
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 | 62 | 58 | ▼ 6.5% |
| February | 56 | 56 | 0.0% |
| March | 62 | 62 | 0.0% |
| April | 60 | 60 | 0.0% |
| May | 37 | 37 | 0.0% |
| June | 53 | 54 | ▲ 1.9% |
| July | 62 | 58 | ▼ 6.5% |
| August | 62 | – | – |
| September | 60 | – | – |
| October | 62 | – | in progress |
| November | 60 | – | – |
| December | 50 | – | – |
| Year to date (Jan–Jul) | 392 | 385 | ▼ 1.8% |
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 | 71.2% | 75.5% | ▲ 6.0% |
| February | 75.0% | 78.6% | ▲ 4.8% |
| March | 91.9% | 76.8% | ▼ 16.5% |
| April | 85.0% | 80.0% | ▼ 5.9% |
| May | 64.9% | 94.6% | ▲ 45.8% |
| June | 73.6% | 79.6% | ▲ 8.2% |
| July | 73.3% | 70.2% | ▼ 4.3% |
| August | 83.3% | – | – |
| September | 88.3% | – | – |
| October | 87.1% | – | in progress |
| November | 76.7% | – | – |
| December | 58.0% | – | – |
| Year-to-date average (Jan–Jul) | 76.4% | 79.3% | ▲ 3.8% |
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 | 3 | 5 | ▲ 66.7% |
| February | 0 | 0 | – |
| March | 0 | 6 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 2 | 1 | ▼ 50.0% |
| August | 2 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 5 | 12 | ▲ 140.0% |
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 98.5% 1,214
- Cancelled 1.5% 19
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ATL DCA Hartsfield Jackson Atlanta International Airport – Ronald Reagan Washington National Airport | 880 | 8.0 min | 80.7% | 658 |
| DCA ATL Ronald Reagan Washington National Airport – Hartsfield Jackson Atlanta International Airport | 880 | 19.2 min | 75.7% | 575 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 40 | 40 | 97.5% | 0 |
| November 2024 | 60 | 60 | 71.7% | 0 |
| December 2024 | 62 | 62 | 72.6% | 0 |
| January 2025 | 62 | 59 | 71.2% | 3 |
| February 2025 | 56 | 56 | 75.0% | 0 |
| March 2025 | 62 | 62 | 91.9% | 0 |
| April 2025 | 60 | 60 | 85.0% | 0 |
| May 2025 | 37 | 37 | 64.9% | 0 |
| June 2025 | 53 | 53 | 73.6% | 0 |
| July 2025 | 62 | 60 | 73.3% | 2 |
| August 2025 | 62 | 60 | 83.3% | 2 |
| September 2025 | 60 | 60 | 88.3% | 0 |
| October 2025 | 62 | 62 | 87.1% | 0 |
| November 2025 | 60 | 60 | 76.7% | 0 |
| December 2025 | 50 | 50 | 58.0% | 0 |
| January 2026 | 58 | 53 | 75.5% | 5 |
| February 2026 | 56 | 56 | 78.6% | 0 |
| March 2026 | 62 | 56 | 76.8% | 6 |
| April 2026 | 60 | 60 | 80.0% | 0 |
| May 2026 | 37 | 37 | 94.6% | 0 |
| June 2026 | 54 | 54 | 79.6% | 0 |
| July 2026 | 58 | 57 | 70.2% | 1 |