Flight UA1864
United Airlines flight UA1864
Looking for UA1864 in the airâŚ
Miami (MIA) to Newark (EWR)
Historically, this flight arrives 15+ minutes late 7% of the time, and when it is late the delay averages 85 minutes. It was cancelled 0.8% of the time.
- On-time arrivals
- 92.7%
- Less than 15 minutes late
- Cancelled
- 0.8%
- Of scheduled flights
- Average delay when late
- 85 min
- Flights arriving 15+ minutes late
- Flights tracked
- 359
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 43%
- Late-arriving aircraft 34%
- Air traffic control & airport 17%
- Extreme weather 6%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Newark (EWR) to Las Vegas (LAS)
Historically, this flight arrives 15+ minutes late 16% of the time, and when it is late the delay averages 93 minutes. It was cancelled 0.6% of the time.
- On-time arrivals
- 84.4%
- Less than 15 minutes late
- Cancelled
- 0.6%
- Of scheduled flights
- Average delay when late
- 93 min
- Flights arriving 15+ minutes late
- Flights tracked
- 155
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 45%
- Air traffic control & airport 21%
- Extreme weather 17%
- Airline (crew, maintenance, cleaning) 17%
- 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 | 92.6% | 27 |
| October 2025 | 96.7% | 30 |
| November 2025 | 96.7% | 30 |
| December 2025 | 87.1% | 31 |
| January 2026 | 90.0% | 31 |
| February 2026 | 88.5% | 27 |
| March 2026 | 94.1% | 34 |
| April 2026 | 95.0% | 60 |
| May 2026 | 91.9% | 62 |
| June 2026 | 86.7% | 60 |
| July 2026 | 84.5% | 60 |
| August 2026 | 85.5% | 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