UA1849
UA1849 (United Airlines) is a multi-stop service on 4 routes, busiest San Francisco to Dulles. Of 701 departures recorded from October 2024 to July 2026, 87.0% left on time, according to the US BTS.
- On-time departures87.0%of 701 flights
- Average delay9.1 min
- July 202631▲ 0.0%vs July 2025
- Cancelled1.3%
- Legs flown under this number4
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 | 31 | 31 | 0.0% |
| February | 44 | 28 | ▼ 36.4% |
| March | 38 | 31 | ▼ 18.4% |
| April | 30 | 30 | 0.0% |
| May | 31 | 31 | 0.0% |
| June | 30 | 30 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 235 | 212 | ▼ 9.8% |
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 | 80.0% | 96.7% | ▲ 20.8% |
| February | 90.9% | 89.3% | ▼ 1.8% |
| March | 81.6% | 92.6% | ▲ 13.5% |
| April | 93.3% | 90.0% | ▼ 3.6% |
| May | 90.3% | 96.8% | ▲ 7.1% |
| June | 83.3% | 73.3% | ▼ 12.0% |
| July | 86.7% | 93.6% | ▲ 7.9% |
| August | 83.3% | – | – |
| September | 83.3% | – | – |
| October | 80.7% | – | in progress |
| November | 89.7% | – | – |
| December | 93.6% | – | – |
| Year-to-date average (Jan–Jul) | 86.6% | 90.3% | ▲ 4.3% |
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 | 0 | – |
| March | 0 | 4 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 5 | ▲ 150.0% |
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 98.7% 692
- Cancelled 1.3% 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 |
|---|---|---|---|---|
| SFO IAD San Francisco International Airport – Washington Dulles International Airport | 3,883 | 9.6 min | 86.8% | 658 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 48 | 48 | 83.3% | 0 |
| December 2024 | 33 | 33 | 75.8% | 0 |
| January 2025 | 31 | 30 | 80.0% | 1 |
| February 2025 | 44 | 44 | 90.9% | 0 |
| March 2025 | 38 | 38 | 81.6% | 0 |
| April 2025 | 30 | 30 | 93.3% | 0 |
| May 2025 | 31 | 31 | 90.3% | 0 |
| June 2025 | 30 | 30 | 83.3% | 0 |
| July 2025 | 31 | 30 | 86.7% | 1 |
| August 2025 | 31 | 30 | 83.3% | 1 |
| September 2025 | 30 | 30 | 83.3% | 0 |
| October 2025 | 31 | 31 | 80.7% | 0 |
| November 2025 | 30 | 29 | 89.7% | 1 |
| December 2025 | 31 | 31 | 93.6% | 0 |
| January 2026 | 31 | 30 | 96.7% | 1 |
| February 2026 | 28 | 28 | 89.3% | 0 |
| March 2026 | 31 | 27 | 92.6% | 4 |
| April 2026 | 30 | 30 | 90.0% | 0 |
| May 2026 | 31 | 31 | 96.8% | 0 |
| June 2026 | 30 | 30 | 73.3% | 0 |
| July 2026 | 31 | 31 | 93.6% | 0 |