Flight UA1588
United Airlines flight UA1588
Looking for UA1588 in the airâŚ
Denver (DEN) to Redmond (RDM)
Historically, this flight arrives 15+ minutes late 28% of the time, and when it is late the delay averages 76 minutes. It was cancelled 0.6% of the time.
- On-time arrivals
- 72.2%
- Less than 15 minutes late
- Cancelled
- 0.6%
- Of scheduled flights
- Average delay when late
- 76 min
- Flights arriving 15+ minutes late
- Flights tracked
- 363
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 65%
- Airline (crew, maintenance, cleaning) 27%
- Air traffic control & airport 7%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
New Orleans (MSY) to Denver (DEN)
Historically, this flight arrives 15+ minutes late 0% of the time. It was cancelled 0.0% of the time.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- â
- Flights arriving 15+ minutes late
- Flights tracked
- 36
- Scheduled flights in the period
Pensacola (PNS) to Denver (DEN)
Historically, this flight arrives 15+ minutes late 12% of the time, and when it is late the delay averages 77 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 87.5%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 77 min
- Flights arriving 15+ minutes late
- Flights tracked
- 32
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 51%
- Air traffic control & airport 49%
- Late-arriving aircraft 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Knoxville/Maryville (TYS) to Denver (DEN)
Historically, this flight arrives 15+ minutes late 10% of the time, and when it is late the delay averages 76 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 90.5%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 76 min
- Flights arriving 15+ minutes late
- Flights tracked
- 21
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 59%
- Extreme weather 22%
- Airline (crew, maintenance, cleaning) 19%
- Late-arriving aircraft 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
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Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 83.3% | 30 |
| October 2025 | 73.0% | 37 |
| November 2025 | 89.5% | 58 |
| December 2025 | 65.6% | 32 |
| January 2026 | 82.8% | 31 |
| February 2026 | 84.0% | 28 |
| March 2026 | 81.8% | 34 |
| April 2026 | 91.7% | 60 |
| May 2026 | 78.4% | 51 |
| June 2026 | 50.0% | 30 |
| July 2026 | 63.3% | 30 |
| August 2026 | 48.4% | 31 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 â August 2026. Covers flights operated by reporting U.S. carriers. About our data