Flight UA1066
United Airlines flight UA1066
Looking for UA1066 in the airâŚ
Alerts at this flight's airports
Houston (IAH) to Denver (DEN)
Historically, this flight arrives 15+ minutes late 11% of the time, and when it is late the delay averages 73 minutes. It was cancelled 0.5% of the time.
- On-time arrivals
- 89.2%
- Less than 15 minutes late
- Cancelled
- 0.5%
- Of scheduled flights
- Average delay when late
- 73 min
- Flights arriving 15+ minutes late
- Flights tracked
- 196
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 54%
- Airline (crew, maintenance, cleaning) 28%
- Extreme weather 10%
- Air traffic control & airport 8%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
New York (LGA) to Houston (IAH)
Historically, this flight arrives 15+ minutes late 52% of the time, and when it is late the delay averages 216 minutes. It was cancelled 2.1% of the time.
- On-time arrivals
- 47.8%
- Less than 15 minutes late
- Cancelled
- 2.1%
- Of scheduled flights
- Average delay when late
- 216 min
- Flights arriving 15+ minutes late
- Flights tracked
- 47
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 38%
- Extreme weather 28%
- Airline (crew, maintenance, cleaning) 26%
- Air traffic control & airport 8%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Phoenix (PHX) to Houston (IAH)
Historically, this flight arrives 15+ minutes late 3% of the time, and when it is late the delay averages 542 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 97.2%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 542 min
- Flights arriving 15+ minutes late
- Flights tracked
- 36
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 55%
- Late-arriving aircraft 45%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Newark (EWR) to Dallas-Fort Worth (DFW)
Historically, this flight arrives 15+ minutes late 19% of the time, and when it is late the delay averages 129 minutes. It was cancelled 7.1% of the time.
- On-time arrivals
- 80.8%
- Less than 15 minutes late
- Cancelled
- 7.1%
- Of scheduled flights
- Average delay when late
- 129 min
- Flights arriving 15+ minutes late
- Flights tracked
- 28
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 37%
- Late-arriving aircraft 32%
- Air traffic control & airport 32%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Denver (DEN) to Bozeman (BZN)
Historically, this flight arrives 15+ minutes late 4% of the time, and when it is late the delay averages 68 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 95.8%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 68 min
- Flights arriving 15+ minutes late
- Flights tracked
- 24
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 100%
- Airline (crew, maintenance, cleaning) 0%
- Late-arriving aircraft 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Columbus (CMH) to Dulles (IAD)
Historically, this flight arrives 15+ minutes late 13% of the time, and when it is late the delay averages 29 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 87.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 29 min
- Flights arriving 15+ minutes late
- Flights tracked
- 23
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 67%
- Airline (crew, maintenance, cleaning) 33%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Burbank (BUR) to San Francisco (SFO)
Historically, this flight arrives 15+ minutes late 43% of the time, and when it is late the delay averages 72 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 57.1%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 72 min
- Flights arriving 15+ minutes late
- Flights tracked
- 21
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 72%
- Air traffic control & airport 24%
- Airline (crew, maintenance, cleaning) 4%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Los Angeles (LAX) to Salt Lake City (SLC)
Only 19 flights on record, which is too few for reliable odds.
- On-time arrivals
- 52.6%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 63 min
- Flights arriving 15+ minutes late
- Flights tracked
- 19
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 77%
- Airline (crew, maintenance, cleaning) 23%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Milwaukee (MKE) to Denver (DEN)
Only 16 flights on record, which is too few for reliable odds.
- On-time arrivals
- 75.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 93 min
- Flights arriving 15+ minutes late
- Flights tracked
- 16
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 76%
- Air traffic control & airport 15%
- Late-arriving aircraft 9%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
San Antonio (SAT) to Houston (IAH)
Only 2 flights on record, which is too few for reliable odds.
- 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
- 2
- Scheduled flights in the period
Tucson (TUS) to Houston (IAH)
Only 1 flight on record, which is too few for reliable odds.
- 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
- 1
- Scheduled flights in the period
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Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 96.6% | 29 |
| October 2025 | 85.7% | 21 |
| November 2025 | 80.0% | 27 |
| December 2025 | 64.5% | 31 |
| January 2026 | 91.2% | 57 |
| February 2026 | 97.3% | 37 |
| March 2026 | 83.3% | 31 |
| April 2026 | 93.3% | 30 |
| May 2026 | 90.3% | 31 |
| June 2026 | 81.5% | 27 |
| July 2026 | 64.2% | 54 |
| August 2026 | 55.3% | 38 |
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