DL820
DL820 (Delta Air Lines) is a multi-stop service on 2 routes, busiest Salt Lake City to Washington. Of 1,313 departures recorded from October 2024 to July 2026, 82.5% left on time, according to the US BTS.
- On-time departures82.5%of 1,313 flights
- Average delay9.9 min
- July 202660▼ 3.2%vs July 2025
- Cancelled1.0%
- 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 | 62 | 0.0% |
| February | 56 | 56 | 0.0% |
| March | 62 | 62 | 0.0% |
| April | 60 | 60 | 0.0% |
| May | 62 | 62 | 0.0% |
| June | 60 | 60 | 0.0% |
| July | 62 | 60 | ▼ 3.2% |
| August | 62 | – | – |
| September | 60 | – | – |
| October | 62 | – | in progress |
| November | 60 | – | – |
| December | 62 | – | – |
| Year to date (Jan–Jul) | 424 | 422 | ▼ 0.5% |
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 | 82.3% | 73.3% | ▼ 10.9% |
| February | 60.7% | 80.8% | ▲ 33.0% |
| March | 80.3% | 79.0% | ▼ 1.6% |
| April | 94.9% | 86.7% | ▼ 8.7% |
| May | 81.7% | 82.3% | ▲ 0.7% |
| June | 75.9% | 70.0% | ▼ 7.7% |
| July | 77.4% | 86.4% | ▲ 11.7% |
| August | 85.5% | – | – |
| September | 88.3% | – | – |
| October | 90.3% | – | in progress |
| November | 86.7% | – | – |
| December | 91.9% | – | – |
| Year-to-date average (Jan–Jul) | 79.0% | 79.8% | ▲ 1.0% |
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 | 0 | 2 | – |
| February | 0 | 4 | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 1 | 0 | ▼ 100.0% |
| May | 2 | 0 | ▼ 100.0% |
| June | 2 | 0 | ▼ 100.0% |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 6 | 7 | ▲ 16.7% |
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 99.0% 1,300
- Cancelled 1.0% 13
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 |
|---|---|---|---|---|
| SLC DCA Salt Lake City International Airport – Ronald Reagan Washington National Airport | 2,972 | 4.1 min | 86.3% | 657 |
| DCA SLC Ronald Reagan Washington National Airport – Salt Lake City International Airport | 2,972 | 15.7 min | 78.7% | 656 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 40 | 40 | 97.5% | 0 |
| November 2024 | 59 | 59 | 89.8% | 0 |
| December 2024 | 62 | 62 | 77.4% | 0 |
| January 2025 | 62 | 62 | 82.3% | 0 |
| February 2025 | 56 | 56 | 60.7% | 0 |
| March 2025 | 62 | 61 | 80.3% | 1 |
| April 2025 | 60 | 59 | 94.9% | 1 |
| May 2025 | 62 | 60 | 81.7% | 2 |
| June 2025 | 60 | 58 | 75.9% | 2 |
| July 2025 | 62 | 62 | 77.4% | 0 |
| August 2025 | 62 | 62 | 85.5% | 0 |
| September 2025 | 60 | 60 | 88.3% | 0 |
| October 2025 | 62 | 62 | 90.3% | 0 |
| November 2025 | 60 | 60 | 86.7% | 0 |
| December 2025 | 62 | 62 | 91.9% | 0 |
| January 2026 | 62 | 60 | 73.3% | 2 |
| February 2026 | 56 | 52 | 80.8% | 4 |
| March 2026 | 62 | 62 | 79.0% | 0 |
| April 2026 | 60 | 60 | 86.7% | 0 |
| May 2026 | 62 | 62 | 82.3% | 0 |
| June 2026 | 60 | 60 | 70.0% | 0 |
| July 2026 | 60 | 59 | 86.4% | 1 |