About 1 in 3 UA 574 flights from Las Vegas arrived 15+ minutes late, diverted or cancelled over the past year (34%); 0.3% were cancelled. The typical flight landed 2 minutes late.
UA 574: LAS → SFO
Scheduled to leave Las Vegas at 11:30 a.m. local time. Over the past year it arrived on time 66% of the time (364 flights), in line with other UA flights on the route at that hour (66%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 52 | 65% |
| Tuesday | 52 | 81% |
| Wednesday | 52 | 60% |
| Thursday | 52 | 58% |
| Friday | 52 | 48% |
| Saturday | 52 | 85% |
| Sunday | 52 | 65% |
Why it was late
All flights LAS → SFO · Connecting off UA 574? Check the risk
UA 574: ORD → LAS
Scheduled to leave Chicago at 7:11 a.m. local time. Over the past year it arrived on time 97% of the time (290 flights), in line with other UA flights on the route at that hour (96%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 43 | 98% |
| Tuesday | 38 | 100% |
| Wednesday | 37 | 95% |
| Thursday | 44 | 100% |
| Friday | 44 | 95% |
| Saturday | 41 | 95% |
| Sunday | 43 | 95% |
Why it was late
All flights ORD → LAS · Connecting off UA 574? Check the risk
UA 574: SFO → PHX
Scheduled to leave San Francisco at 4:25 p.m. local time. Over the past year it arrived on time 69% of the time (179 flights), worse than other UA flights on the route at that hour (72%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 26 | 46% |
| Tuesday | 25 | 92% |
| Wednesday | 25 | 72% |
| Thursday | 26 | 54% |
| Friday | 26 | 62% |
| Saturday | 25 | 88% |
| Sunday | 26 | 69% |
Why it was late
All flights SFO → PHX · Connecting off UA 574? Check the risk
Questions
How often is UA 574 from LAS to SFO late?
United Airlines 574 from Las Vegas, NV to San Francisco, CA arrived 15 or more minutes late, was diverted or was cancelled on 34% of 364 scheduled flights between September 2025 and August 2026. 0.3% were cancelled.
How often is UA 574 from ORD to LAS late?
United Airlines 574 from Chicago, IL to Las Vegas, NV arrived 15 or more minutes late, was diverted or was cancelled on 3% of 290 scheduled flights between September 2025 and August 2026. 0.0% were cancelled.
How often is UA 574 from SFO to PHX late?
United Airlines 574 from San Francisco, CA to Phoenix, AZ arrived 15 or more minutes late, was diverted or was cancelled on 31% of 179 scheduled flights between September 2025 and August 2026. 0.0% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check United Airlines for today's flight. Method.