UA2837
UA2837 (United Airlines) is a multi-stop service on 3 routes, busiest San Francisco to Dulles. Of 143 departures recorded from May 2026 to July 2026, 44.1% left on time, according to the US BTS.
- On-time departures44.1%of 143 flights
- Average delay37.2 min
- July 202661
- Cancelled0.0%
- Legs flown under this number3
Recorded departures by month
Short series — UA2837 has only 3 months so far. Enough to show the level now, not enough to read a trend.
All legs under this number combined; see the leg table.
The most recent periods3 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | – | – |
| April | – | – | – |
| May | – | 22 | – |
| June | – | 60 | – |
| July | – | 61 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · May 2026 → July 2026
On-time departures by month
Short series — UA2837 has only 3 months so far. Enough to show the level now, not enough to read a trend.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods3 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | – | – |
| April | – | – | – |
| May | – | 59.1% | – |
| June | – | 36.7% | – |
| July | – | 45.9% | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · May 2026 → July 2026
Average departure delay by month
Short series — UA2837 has only 3 months so far. Enough to show the level now, not enough to read a trend.
according to the US BTS · May 2026 → July 2026
Cancelled departures by month
Short series — UA2837 has only 3 months so far. Enough to show the level now, not enough to read a trend.
The most recent periods3 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | – | – |
| April | – | – | – |
| May | – | 0 | – |
| June | – | 0 | – |
| July | – | 0 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · May 2026 → 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 100.0% 143
- Cancelled 0.0% 0
Share of all recorded flights in the period, all legs. · May 21, 2026 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SFO IAD San Francisco International Airport – Washington Dulles International Airport | 3,883 | 24.1 min | 52.8% | 72 |
| PHX SFO Phoenix Sky Harbor International Airport – San Francisco International Airport | 1,047 | 53.7 min | 25.0% | 36 |
| SEA SFO Seattle–Tacoma International Airport – San Francisco International Airport | 1,093 | 47.3 min | 45.7% | 35 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| May 2026 | 22 | 22 | 59.1% | 0 |
| June 2026 | 60 | 60 | 36.7% | 0 |
| July 2026 | 61 | 61 | 45.9% | 0 |