UA1858
UA1858 (United Airlines) is a multi-stop service on 12 routes, busiest Charleston to Dulles. Of 748 departures recorded from October 2024 to July 2026, 89.0% left on time, according to the US BTS.
- On-time departures89.0%of 748 flights
- Average delay5.6 min
- July 202631▲ 0.0%vs July 2025
- Cancelled0.7%
- Legs flown under this number12
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 | 17 | 27 | ▲ 58.8% |
| February | 19 | 22 | ▲ 15.8% |
| March | 30 | 50 | ▲ 66.7% |
| April | 30 | 52 | ▲ 73.3% |
| May | 31 | 29 | ▼ 6.5% |
| June | 30 | 30 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 37 | – | – |
| September | 48 | – | – |
| October | 65 | – | in progress |
| November | 57 | – | – |
| December | 32 | – | – |
| Year to date (Jan–Jul) | 188 | 241 | ▲ 28.2% |
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 | 56.3% | 88.0% | ▲ 56.4% |
| February | 84.2% | 90.5% | ▲ 7.4% |
| March | 83.3% | 92.0% | ▲ 10.4% |
| April | 90.0% | 94.2% | ▲ 4.7% |
| May | 93.3% | 86.2% | ▼ 7.6% |
| June | 96.7% | 96.7% | 0.0% |
| July | 96.8% | 90.3% | ▼ 6.7% |
| August | 94.6% | – | – |
| September | 91.7% | – | – |
| October | 93.9% | – | in progress |
| November | 91.2% | – | – |
| December | 75.0% | – | – |
| Year-to-date average (Jan–Jul) | 85.8% | 91.1% | ▲ 6.2% |
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 | 2 | ▲ 100.0% |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 3 | ▲ 50.0% |
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 99.3% 743
- Cancelled 0.7% 5
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
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| CHS IAD Charleston International Airport – Washington Dulles International Airport | 712 | 0.8 min | 94.0% | 335 |
| IAD BNA Washington Dulles International Airport – Nashville International Airport | 871 | 7.8 min | 89.4% | 173 |
| IAD AUS Washington Dulles International Airport – Austin Bergstrom International Airport | 2,084 | 10.4 min | 82.4% | 85 |
| IAD PHX Washington Dulles International Airport – Phoenix Sky Harbor International Airport | 3,141 | 10.5 min | 87.5% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 29 | 29 | 79.3% | 0 |
| December 2024 | 31 | 31 | 71.0% | 0 |
| January 2025 | 17 | 16 | 56.3% | 1 |
| February 2025 | 19 | 19 | 84.2% | 0 |
| March 2025 | 30 | 30 | 83.3% | 0 |
| April 2025 | 30 | 30 | 90.0% | 0 |
| May 2025 | 31 | 30 | 93.3% | 1 |
| June 2025 | 30 | 30 | 96.7% | 0 |
| July 2025 | 31 | 31 | 96.8% | 0 |
| August 2025 | 37 | 37 | 94.6% | 0 |
| September 2025 | 48 | 48 | 91.7% | 0 |
| October 2025 | 65 | 65 | 93.9% | 0 |
| November 2025 | 57 | 57 | 91.2% | 0 |
| December 2025 | 32 | 32 | 75.0% | 0 |
| January 2026 | 27 | 25 | 88.0% | 2 |
| February 2026 | 22 | 21 | 90.5% | 1 |
| March 2026 | 50 | 50 | 92.0% | 0 |
| April 2026 | 52 | 52 | 94.2% | 0 |
| May 2026 | 29 | 29 | 86.2% | 0 |
| June 2026 | 30 | 30 | 96.7% | 0 |
| July 2026 | 31 | 31 | 90.3% | 0 |