Flight Reliability
DL 2528 · Delta Air Lines
San Antonio → Minneapolis (SAT–MSP)
85
Pretty Reliable
WanderNerd Reliability Score
- 78%
- Arrive within 15 minutes
- 9 min
- Average arrival delay
- 0.3%
- Cancelled
- 7 min early
- Median arrival delay
Based on 316 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
DL 2528 arrived on time 89% of the time on Saturdays and just 62% on Sundays. That gap is worth planning around.
A bit behind the SAT–MSP route.
DL 2528 arrived on time 78% of the time, versus 85% across the SAT–MSP route.
A bit behind the Delta Air Lines network.
DL 2528 arrived on time 78% of the time, versus 81% across the Delta Air Lines network.
It basically never cancels.
Out of 316 scheduled flights, only 0.3% were cancelled.
The breakdown
- Mon77%(47 flights)
- Tue85%(46 flights)
- Wed81%(47 flights)
- Thu75%(47 flights)
- Fri80%(46 flights)
- Sat89%(35 flights)
- Sun62%(47 flights)
90%
May
Jun 73% → May 90% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 73% | 30 |
| July 2025 | 84% | 31 |
| August 2025 | 65% | 26 |
| September 2025 | 68% | 22 |
| October 2025 | 90% | 31 |
| November 2025 | 75% | 28 |
| December 2025 | 72% | 18 |
| January 2026 | 77% | 22 |
| February 2026 | 73% | 22 |
| March 2026 | 73% | 26 |
| April 2026 | 82% | 28 |
| May 2026 | 90% | 31 |
- Departures on time
- 78%
- Diverted
- 0%
- Flights flown
- 315
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 316 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.