Flight Reliability
DL 3533 · Delta Air Lines
Las Vegas → Santa Ana (LAS–SNA)95% of its flights flew this route. The rest (CVG–MSP, DTW–SYR) are included in these numbers.
84
Pretty Reliable
WanderNerd Reliability Score
- 82%
- Arrive within 15 minutes
- 0 min
- Average arrival delay
- 1.5%
- Cancelled
- 8 min early
- Median arrival delay
Based on 206 historical flights. Data through May 2026.
What the data says
Friday is doing you no favors.
DL 3533 arrived on time 94% of the time on Saturdays and just 68% on Fridays. That gap is worth planning around.
Trending in the right direction.
DL 3533 arrived on time 91% of the time over the last three months in the data, compared with 79% in the three months before that.
The breakdown
- Mon79%(29 flights)
- Tue89%(28 flights)
- Wed90%(29 flights)
- Thu79%(29 flights)
- Fri68%(28 flights)
- Sat94%(32 flights)
- Sun75%(28 flights)
- 9 AM–12 PM—(9 flights)
- 12–3 PM—(2 flights)
- 3–6 PM82%(192 flights)
95%
Dec
Jun 70% → Dec 95% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 70% | 30 |
| July 2025 | 87% | 30 |
| August 2025 | 77% | 31 |
| September 2025 | 72% | 29 |
| October 2025 | 87% | 31 |
| November 2025 | 90% | 29 |
| December 2025 | 95% | 19 |
- Departures on time
- 85%
- Diverted
- 0%
- Flights flown
- 203
- Months covered
- 8
Same route, other flights
Keep nerding
Based on 206 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.