Flight UA1199
United Airlines flight UA1199
Looking for UA1199 in the airâŚ
Denver (DEN) to Indianapolis (IND)
Historically, this flight arrives 15+ minutes late 25% of the time, and when it is late the delay averages 74 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 75.1%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 74 min
- Flights arriving 15+ minutes late
- Flights tracked
- 344
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 66%
- Air traffic control & airport 17%
- Airline (crew, maintenance, cleaning) 15%
- Extreme weather 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Kalispell (FCA) to Denver (DEN)
Historically, this flight arrives 15+ minutes late 22% of the time, and when it is late the delay averages 111 minutes. It was cancelled 1.4% of the time.
- On-time arrivals
- 78.4%
- Less than 15 minutes late
- Cancelled
- 1.4%
- Of scheduled flights
- Average delay when late
- 111 min
- Flights arriving 15+ minutes late
- Flights tracked
- 144
- Scheduled flights in the period
What caused the delays
- Extreme weather 38%
- Air traffic control & airport 36%
- Late-arriving aircraft 18%
- Airline (crew, maintenance, cleaning) 8%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Reno (RNO) to Denver (DEN)
Only 19 flights on record, which is too few for reliable odds.
- On-time arrivals
- 84.2%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 235 min
- Flights arriving 15+ minutes late
- Flights tracked
- 19
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 83%
- Air traffic control & airport 13%
- Airline (crew, maintenance, cleaning) 4%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
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Headlines found by Google News; stories open on the publisher's site.
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 63.3% | 30 |
| October 2025 | 80.6% | 31 |
| November 2025 | 89.7% | 29 |
| December 2025 | 83.9% | 31 |
| January 2026 | 80.6% | 31 |
| February 2026 | 85.7% | 28 |
| March 2026 | 79.4% | 34 |
| April 2026 | 94.8% | 60 |
| May 2026 | 74.2% | 62 |
| June 2026 | 66.7% | 60 |
| July 2026 | 72.9% | 49 |
| August 2026 | 58.3% | 62 |
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