Flight Reliability
DL 3975 · Delta Air Lines
ATW → Minneapolis (ATW–MSP)
81
Pretty Reliable
WanderNerd Reliability Score
- 83%
- Arrive within 15 minutes
- 16 min
- Average arrival delay
- 1.4%
- Cancelled
- 10 min early
- Median arrival delay
Based on 365 historical flights. Data through May 2026.
What the data says
Skip Monday if you can.
DL 3975 arrived on time 89% of the time on Thursdays. On Mondays: 78%.
A bit ahead of the ATW–MSP route.
DL 3975 arrived on time 83% of the time, versus 76% across the ATW–MSP route.
The breakdown
- Mon78%(50 flights)
- Tue81%(52 flights)
- Wed83%(52 flights)
- Thu89%(52 flights)
- Fri82%(51 flights)
- Sat86%(50 flights)
- Sun79%(52 flights)
77%
May
Jun 93% → May 77% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 93% | 30 |
| July 2025 | 97% | 31 |
| August 2025 | 87% | 31 |
| September 2025 | 90% | 30 |
| October 2025 | 90% | 31 |
| November 2025 | 87% | 30 |
| December 2025 | 57% | 30 |
| January 2026 | 73% | 30 |
| February 2026 | 89% | 28 |
| March 2026 | 63% | 27 |
| April 2026 | 83% | 30 |
| May 2026 | 77% | 31 |
- Departures on time
- 86%
- Diverted
- 0.3%
- Flights flown
- 359
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 365 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.