About 1 in 5 DL 4179 flights from Las Vegas arrived 15+ minutes late, diverted or cancelled over the past year (20%); 0.7% were cancelled. The typical flight landed 10 minutes early.
DL 4179: LAS → SNA
Scheduled to leave Las Vegas at 6:15 p.m. local time, operated by SkyWest as OO 4179. Over the past year it arrived on time 80% of the time (141 flights), in line with other DL flights on the route at that hour (79%). Last seen in the data Aug 31, 2026.
Usually Delta Air Lines's last flight of the day from Las Vegas to Santa Ana (100% of days). Delta Air Lines's last LAS–SNA flight was cancelled 1.1% of the time, against 0.0% for its earlier ones. If it's cancelled, the next Delta Air Lines flight is usually around 8:45 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 21 | 76% |
| Tuesday | 20 | 90% |
| Wednesday | 20 | 95% |
| Thursday | 20 | 65% |
| Friday | 20 | 65% |
| Saturday | 20 | 95% |
| Sunday | 20 | 75% |
Why it was late
All flights LAS → SNA · Connecting off DL 4179? Check the risk
DL 4179: SNA → LAS
Scheduled to leave Santa Ana at 7:59 p.m. local time, operated by SkyWest as OO 4179. Over the past year it arrived on time 80% of the time (141 flights), in line with other DL flights on the route at that hour (80%). Last seen in the data Aug 31, 2026.
Usually Delta Air Lines's last flight of the day from Santa Ana to Las Vegas (100% of days). Delta Air Lines's last SNA–LAS flight was cancelled 1.4% of the time, against 0.0% for its earlier ones. If it's cancelled, the next Delta Air Lines flight is usually around 10:45 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 21 | 81% |
| Tuesday | 20 | 90% |
| Wednesday | 20 | 90% |
| Thursday | 20 | 60% |
| Friday | 20 | 75% |
| Saturday | 20 | 90% |
| Sunday | 20 | 75% |
Why it was late
All flights SNA → LAS · Connecting off DL 4179? Check the risk
Questions
How often is DL 4179 from LAS to SNA late?
Delta Air Lines 4179 from Las Vegas, NV to Santa Ana, CA arrived 15 or more minutes late, was diverted or was cancelled on 20% of 141 scheduled flights between September 2025 and August 2026. 0.7% were cancelled.
How often is DL 4179 from SNA to LAS late?
Delta Air Lines 4179 from Santa Ana, CA to Las Vegas, NV arrived 15 or more minutes late, was diverted or was cancelled on 20% of 141 scheduled flights between September 2025 and August 2026. 1.4% 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 Delta Air Lines for today's flight. Method.