UA1337
UA1337 (United Airlines) is a multi-stop service on 8 routes, busiest Denver to Portland. Of 1,310 departures recorded from October 2024 to July 2026, 86.0% left on time, according to the US BTS.
- On-time departures86.0%of 1,310 flights
- Average delay7.9 min
- July 202630▼ 51.6%vs July 2025
- Cancelled0.3%
- Legs flown under this number8
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 | 56 | 58 | ▲ 3.6% |
| February | 40 | 38 | ▼ 5.0% |
| March | 57 | 58 | ▲ 1.8% |
| April | 60 | 60 | 0.0% |
| May | 72 | 73 | ▲ 1.4% |
| June | 85 | 72 | ▼ 15.3% |
| July | 62 | 30 | ▼ 51.6% |
| August | 62 | – | – |
| September | 54 | – | – |
| October | 43 | – | in progress |
| November | 82 | – | – |
| December | 63 | – | – |
| Year to date (Jan–Jul) | 432 | 389 | ▼ 10.0% |
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 | 94.6% | 82.5% | ▼ 12.9% |
| February | 92.5% | 84.2% | ▼ 9.0% |
| March | 86.0% | 89.7% | ▲ 4.3% |
| April | 80.0% | 88.3% | ▲ 10.4% |
| May | 84.7% | 91.8% | ▲ 8.3% |
| June | 76.5% | 90.3% | ▲ 18.1% |
| July | 82.0% | 80.0% | ▼ 2.4% |
| August | 80.7% | – | – |
| September | 90.7% | – | – |
| October | 93.0% | – | in progress |
| November | 88.9% | – | – |
| December | 85.7% | – | – |
| Year-to-date average (Jan–Jul) | 85.2% | 86.7% | ▲ 1.8% |
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 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 1 | 0.0% |
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 99.7% 1,306
- Cancelled 0.3% 4
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
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN PDX Denver International Airport – Portland International Airport | 1,592 | 10.6 min | 82.9% | 579 |
| SAN DEN San Diego International Airport – Denver International Airport | 1,371 | 4.1 min | 88.9% | 288 |
| TPA DEN Tampa International Airport – Denver International Airport | 2,423 | 6.3 min | 88.2% | 187 |
| PDX SFO Portland International Airport – San Francisco International Airport | 886 | 5.6 min | 85.9% | 143 |
| SFO SBA San Francisco International Airport – Santa Barbara Municipal Airport | 422 | 36.7 min | 75.7% | 37 |
| ORD SAN Chicago O'Hare International Airport – San Diego International Airport | 2,768 | -4.7 min | 100.0% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 30 | 30 | 86.7% | 0 |
| November 2024 | 88 | 87 | 82.8% | 1 |
| December 2024 | 67 | 67 | 85.1% | 0 |
| January 2025 | 56 | 56 | 94.6% | 0 |
| February 2025 | 40 | 40 | 92.5% | 0 |
| March 2025 | 57 | 57 | 86.0% | 0 |
| April 2025 | 60 | 60 | 80.0% | 0 |
| May 2025 | 72 | 72 | 84.7% | 0 |
| June 2025 | 85 | 85 | 76.5% | 0 |
| July 2025 | 62 | 61 | 82.0% | 1 |
| August 2025 | 62 | 62 | 80.7% | 0 |
| September 2025 | 54 | 54 | 90.7% | 0 |
| October 2025 | 43 | 43 | 93.0% | 0 |
| November 2025 | 82 | 81 | 88.9% | 1 |
| December 2025 | 63 | 63 | 85.7% | 0 |
| January 2026 | 58 | 57 | 82.5% | 1 |
| February 2026 | 38 | 38 | 84.2% | 0 |
| March 2026 | 58 | 58 | 89.7% | 0 |
| April 2026 | 60 | 60 | 88.3% | 0 |
| May 2026 | 73 | 73 | 91.8% | 0 |
| June 2026 | 72 | 72 | 90.3% | 0 |
| July 2026 | 30 | 30 | 80.0% | 0 |