Flight Reliability
DL 3846 · Delta Air Lines
Los Angeles → Tucson (LAX–TUS)86% of its flights flew this route. The rest (MCI–MSP, MSP–MCI) are included in these numbers.
87
Pretty Reliable
WanderNerd Reliability Score
- 82%
- Arrive within 15 minutes
- 8 min
- Average arrival delay
- 0.6%
- Cancelled
- 8 min early
- Median arrival delay
Based on 326 historical flights. Data through May 2026.
What the data says
The late departure is the smart one here.
DL 3846 departing between 9 PM–12 AM arrived on time 90% of the time, versus 80% between 3–6 PM.
Sunday scaries are real for this one.
DL 3846 arrived on time 97% of the time on Saturdays and just 72% on Sundays. That gap is worth planning around.
The breakdown
- Mon78%(49 flights)
- Tue90%(48 flights)
- Wed80%(46 flights)
- Thu83%(47 flights)
- Fri76%(49 flights)
- Sat97%(38 flights)
- Sun72%(47 flights)
- 3–6 PM80%(51 flights)
- 6–9 PM82%(263 flights)
- 9 PM–12 AM90%(10 flights)
84%
May
Jun 80% → May 84% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 80% | 30 |
| July 2025 | 84% | 31 |
| August 2025 | 76% | 25 |
| September 2025 | 76% | 21 |
| October 2025 | 63% | 24 |
| November 2025 | 90% | 19 |
| December 2025 | 92% | 26 |
| January 2026 | 88% | 16 |
| February 2026 | 78% | 37 |
| March 2026 | 77% | 34 |
| April 2026 | 97% | 30 |
| May 2026 | 84% | 31 |
- Departures on time
- 82%
- Diverted
- 0%
- Flights flown
- 324
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 326 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.