UA510
UA510 (United Airlines) is a multi-stop service on 9 routes, busiest Denver to Missoula. Of 239 departures recorded from October 2024 to March 2026, 83.1% left on time, according to the US BTS.
- On-time departures83.1%of 239 flights
- Average delay10.4 min
- March 20264▼ 20.0%vs March 2025
- Cancelled1.3%
- Legs flown under this number9
Recorded departures by month
Short series — UA510 has only 10 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.
Months without data are left blank.
The most recent periods7 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 35 | ▲ 12.9% |
| February | 28 | 28 | 0.0% |
| March | 5 | 4 | ▼ 20.0% |
| April | – | – | – |
| May | – | – | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 42 | – | – |
| Year to date (Jan–Mar) | 64 | 67 | ▲ 4.7% |
according to the US BTS · October 2024 → March 2026
On-time departures by month
Short series — UA510 has only 10 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods7 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 77.4% | 85.7% | ▲ 10.7% |
| February | 89.3% | 82.1% | ▼ 8.0% |
| March | 100.0% | 100.0% | 0.0% |
| April | – | – | – |
| May | – | – | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 78.6% | – | – |
| Year-to-date average (Jan–Mar) | 88.9% | 89.3% | ▲ 0.4% |
according to the US BTS · October 2024 → March 2026
Average departure delay by month
Short series — UA510 has only 10 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
according to the US BTS · October 2024 → March 2026
Cancelled departures by month
Short series — UA510 has only 10 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods7 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | – | – | – |
| May | – | – | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 0 | – | – |
| Year to date (Jan–Mar) | 0 | 0 |
according to the US BTS · October 2024 → March 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% 236
- Cancelled 1.3% 3
Share of all recorded flights in the period, all legs. · Oct 27, 2024 → Mar 4, 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 |
|---|---|---|---|---|
| DEN MSO Denver International Airport – Missoula Montana Airport | 1,092 | 15.1 min | 77.5% | 40 |
| IAH SAN George Bush Intercontinental Airport – San Diego International Airport | 2,093 | 7.9 min | 86.5% | 37 |
| EWR ORD Newark Liberty International Airport – Chicago O'Hare International Airport | 1,154 | 3.5 min | 91.9% | 37 |
| DEN SFO Denver International Airport – San Francisco International Airport | 1,553 | 9.8 min | 83.3% | 37 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 5 | 5 | 80.0% | 0 |
| November 2024 | 30 | 29 | 82.8% | 1 |
| December 2024 | 31 | 29 | 82.8% | 2 |
| January 2025 | 31 | 31 | 77.4% | 0 |
| February 2025 | 28 | 28 | 89.3% | 0 |
| March 2025 | 5 | 5 | 100.0% | 0 |
| December 2025 | 42 | 42 | 78.6% | 0 |
| January 2026 | 35 | 35 | 85.7% | 0 |
| February 2026 | 28 | 28 | 82.1% | 0 |
| March 2026 | 4 | 4 | 100.0% | 0 |