About 1 in 3 UA 2179 flights from San Francisco arrived 15+ minutes late, diverted or cancelled over the past year (32%); 0.6% were cancelled. The typical flight landed 2 minutes early.
UA 2179: SFO → LAX
Scheduled to leave San Francisco at 10:59 p.m. local time. Over the past year it arrived on time 68% of the time (323 flights), in line with other UA flights on the route at that hour (69%). Last seen in the data Aug 31, 2026.
Usually United Airlines's last flight of the day from San Francisco to Los Angeles (100% of days). United Airlines's last SFO–LAX flight was cancelled 0.5% of the time, against 0.1% for its earlier ones. If it's cancelled, the next United Airlines flight is usually around 6:00 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 42 | 76% |
| Tuesday | 49 | 86% |
| Wednesday | 43 | 65% |
| Thursday | 48 | 58% |
| Friday | 48 | 60% |
| Saturday | 44 | 80% |
| Sunday | 49 | 53% |
Why it was late
All flights SFO → LAX · Connecting off UA 2179? Check the risk
UA 2179: ORD → SFO
Scheduled to leave Chicago at 6:20 p.m. local time. Over the past year it arrived on time 45% of the time (318 flights), in line with other UA flights on the route at that hour (46%). Last seen in the data Aug 10, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 47 | 43% |
| Tuesday | 46 | 67% |
| Wednesday | 45 | 33% |
| Thursday | 44 | 30% |
| Friday | 45 | 44% |
| Saturday | 45 | 51% |
| Sunday | 46 | 48% |
Why it was late
All flights ORD → SFO · Connecting off UA 2179? Check the risk
Questions
How often is UA 2179 from SFO to LAX late?
United Airlines 2179 from San Francisco, CA to Los Angeles, CA arrived 15 or more minutes late, was diverted or was cancelled on 32% of 323 scheduled flights between September 2025 and August 2026. 0.6% were cancelled.
How often is UA 2179 from ORD to SFO late?
United Airlines 2179 from Chicago, IL to San Francisco, CA arrived 15 or more minutes late, was diverted or was cancelled on 55% of 318 scheduled flights between September 2025 and August 2026. 1.3% 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.