UA2651
UA2651 (United Airlines) is a multi-stop service on 14 routes, busiest Denver to Seattle. Of 750 departures recorded from October 2024 to July 2026, 75.6% left on time, according to the US BTS.
- On-time departures75.6%of 750 flights
- Average delay15.2 min
- July 202623▼ 61.7%vs July 2025
- Cancelled1.7%
- Legs flown under this number14
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 | 28 | 27 | ▼ 3.6% |
| February | 20 | 38 | ▲ 90.0% |
| March | 47 | 49 | ▲ 4.3% |
| April | 21 | 18 | ▼ 14.3% |
| May | 37 | 53 | ▲ 43.2% |
| June | 35 | 21 | ▼ 40.0% |
| July | 60 | 23 | ▼ 61.7% |
| August | 32 | – | – |
| September | 21 | – | – |
| October | 28 | – | in progress |
| November | 51 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 248 | 229 | ▼ 7.7% |
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 | 92.9% | 84.6% | ▼ 8.9% |
| February | 80.0% | 77.8% | ▼ 2.8% |
| March | 73.9% | 74.5% | ▲ 0.8% |
| April | 71.4% | 83.3% | ▲ 16.7% |
| May | 59.5% | 73.1% | ▲ 22.9% |
| June | 80.0% | 57.1% | ▼ 28.6% |
| July | 71.4% | 73.9% | ▲ 3.5% |
| August | 67.7% | – | – |
| September | 76.2% | – | – |
| October | 78.6% | – | in progress |
| November | 68.0% | – | – |
| December | 75.9% | – | – |
| Year-to-date average (Jan–Jul) | 75.6% | 74.9% | ▼ 0.9% |
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 | 1 | – |
| February | 0 | 2 | – |
| March | 1 | 2 | ▲ 100.0% |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 4 | 0 | ▼ 100.0% |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 5 | 6 | ▲ 20.0% |
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 98.3% 737
- Cancelled 1.7% 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
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN SEA Denver International Airport – Seattle–Tacoma International Airport | 1,645 | 15.9 min | 75.7% | 428 |
| SEA ORD Seattle–Tacoma International Airport – Chicago O'Hare International Airport | 2,762 | 20.0 min | 63.2% | 70 |
| LGA DEN LaGuardia Airport – Denver International Airport | 2,600 | 31.9 min | 79.4% | 36 |
| IND DEN Indianapolis International Airport – Denver International Airport | 1,568 | 11.9 min | 71.4% | 35 |
| MCO IAD Orlando International Airport – Washington Dulles International Airport | 1,222 | 5.4 min | 83.9% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 36 | 36 | 94.4% | 0 |
| November 2024 | 38 | 38 | 79.0% | 0 |
| December 2024 | 38 | 38 | 79.0% | 0 |
| January 2025 | 28 | 28 | 92.9% | 0 |
| February 2025 | 20 | 20 | 80.0% | 0 |
| March 2025 | 47 | 46 | 73.9% | 1 |
| April 2025 | 21 | 21 | 71.4% | 0 |
| May 2025 | 37 | 37 | 59.5% | 0 |
| June 2025 | 35 | 35 | 80.0% | 0 |
| July 2025 | 60 | 56 | 71.4% | 4 |
| August 2025 | 32 | 31 | 67.7% | 1 |
| September 2025 | 21 | 21 | 76.2% | 0 |
| October 2025 | 28 | 28 | 78.6% | 0 |
| November 2025 | 51 | 50 | 68.0% | 1 |
| December 2025 | 29 | 29 | 75.9% | 0 |
| January 2026 | 27 | 26 | 84.6% | 1 |
| February 2026 | 38 | 36 | 77.8% | 2 |
| March 2026 | 49 | 47 | 74.5% | 2 |
| April 2026 | 18 | 18 | 83.3% | 0 |
| May 2026 | 53 | 52 | 73.1% | 1 |
| June 2026 | 21 | 21 | 57.1% | 0 |
| July 2026 | 23 | 23 | 73.9% | 0 |