Flight UA574
United Airlines flight UA574
Looking for UA574 in the airâŚ
Alerts at this flight's airports
Las Vegas (LAS) to San Francisco (SFO)
Historically, this flight arrives 15+ minutes late 34% of the time, and when it is late the delay averages 63 minutes. It was cancelled 0.3% of the time.
- On-time arrivals
- 66.1%
- Less than 15 minutes late
- Cancelled
- 0.3%
- Of scheduled flights
- Average delay when late
- 63 min
- Flights arriving 15+ minutes late
- Flights tracked
- 364
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 60%
- Airline (crew, maintenance, cleaning) 20%
- Late-arriving aircraft 19%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Chicago (ORD) to Las Vegas (LAS)
Historically, this flight arrives 15+ minutes late 3% of the time, and when it is late the delay averages 79 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 96.9%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 79 min
- Flights arriving 15+ minutes late
- Flights tracked
- 290
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 39%
- Extreme weather 39%
- Late-arriving aircraft 16%
- Airline (crew, maintenance, cleaning) 7%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
San Francisco (SFO) to Phoenix (PHX)
Historically, this flight arrives 15+ minutes late 31% of the time, and when it is late the delay averages 65 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 69.5%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 65 min
- Flights arriving 15+ minutes late
- Flights tracked
- 179
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 62%
- Airline (crew, maintenance, cleaning) 27%
- Air traffic control & airport 11%
- Security 0%
- Extreme weather 0%
Share of delay minutes airlines attributed to each cause (BTS).
San Francisco (SFO) to Burbank (BUR)
Only 16 flights on record, which is too few for reliable odds.
- On-time arrivals
- 81.2%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 54 min
- Flights arriving 15+ minutes late
- Flights tracked
- 16
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 78%
- Airline (crew, maintenance, cleaning) 14%
- Air traffic control & airport 7%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
San Francisco (SFO) to Atlanta (ATL)
Only 3 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
- 3
- Scheduled flights in the period
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Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 93.3% | 60 |
| October 2025 | 80.4% | 56 |
| November 2025 | 78.1% | 33 |
| December 2025 | 81.0% | 63 |
| January 2026 | 82.5% | 57 |
| February 2026 | 81.6% | 49 |
| March 2026 | 89.7% | 87 |
| April 2026 | 74.1% | 81 |
| May 2026 | 69.9% | 93 |
| June 2026 | 63.3% | 90 |
| July 2026 | 77.3% | 90 |
| August 2026 | 73.1% | 93 |
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